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Adachi I, Adamczyk K, Aggarwal L, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Aversano M, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becherer F, Becker J, Behera PK, Bennett JV, Bernlochner FU, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhuyan B, Bianchi F, Bilka T, Biswas D, Bobrov A, Bodrov D, Bolz A, Bondar A, Borah J, Bozek A, Bračko M, Branchini P, Briere RA, Browder TE, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang MC, Chang P, Cheaib R, Cheema P, Chekelian V, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Choi SK, Choudhury S, Cochran J, Corona L, Cremaldi LM, Das S, Dattola F, De La Cruz-Burelo E, De La Motte SA, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, Dey S, Dhamija R, Di Canto A, Di Capua F, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dort K, Dossett D, Dreyer S, Dubey S, Dujany G, Ecker P, Eliachevitch M, Epifanov D, Feichtinger P, Ferber T, Ferlewicz D, Fillinger T, Finck C, Finocchiaro G, Fodor A, Forti F, Frey A, Fulsom BG, Gabrielli A, Ganiev E, Garcia-Hernandez M, Garg R, Garmash A, Gaudino G, Gaur V, Gaz A, Gellrich A, Ghevondyan G, Ghosh D, Ghumaryan H, Giakoustidis G, Giordano R, Giri A, Gobbo B, Godang R, Gogota O, Goldenzweig P, Gradl W, Granderath S, Graziani E, Greenwald D, Gruberová Z, Gu T, Guan Y, Gudkova K, Halder S, Han Y, Hara T, Hayasaka K, Hayashii H, Hazra S, Hearty C, Hedges MT, Heidelbach A, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill EC, Hoek M, Hohmann M, Horak P, Hsu CL, Iijima T, Inami K, Inguglia G, Ipsita N, Ishikawa A, Ito S, Itoh R, Iwasaki M, Jackson P, Jacobs WW, Jang EJ, Ji QP, Jia S, Jin Y, Johnson A, Junkerkalefeld H, Kaliyar AB, Kandra J, Kang KH, Karyan G, Kawasaki T, Keil F, Ketter C, Kiesling C, Kim CH, Kim DY, Kim KH, Kim YK, Kindo H, Kinoshita K, Kodyš P, Koga T, Kohani S, Kojima K, Konno T, Korobov A, Korpar S, Kovalenko E, Kowalewski R, Kraetzschmar TMG, Križan P, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumara K, Kunigo T, Kuzmin A, Kwon YJ, Lacaprara S, Lai YT, Lam T, Lanceri L, Lange JS, Laurenza M, Leboucher R, Le Diberder FR, Leitl P, Levit D, Lewis PM, Li C, Li LK, Li Y, Libby J, Liu QY, Liu ZQ, Liventsev D, Longo S, Lueck T, Luo T, Lyu C, Ma Y, Maggiora M, Maharana SP, Maiti R, Maity S, Mancinelli G, Manfredi R, Manoni E, Manthei AC, Mantovano M, Marcantonio D, Marcello S, Marinas C, Martel L, Martellini C, Martini A, Martinov T, Massaccesi L, Masuda M, Matsuda T, Matvienko D, Maurya SK, McKenna JA, Mehta R, Meier F, Merola M, Metzner F, Milesi M, Miller C, Mirra M, Miyabayashi K, Mohanty GB, Molina-Gonzalez N, Mondal S, Moneta S, Moser HG, Mrvar M, Mussa R, Nakamura I, Nakazawa Y, Narimani Charan A, Naruki M, Natkaniec Z, Natochii A, Nayak L, Nazaryan G, Nisar NK, Nishida S, Ogawa S, Ono H, Oskin P, Otani F, Pakhlov P, Pakhlova G, Paladino A, Panta A, Paoloni E, Pardi S, Parham K, Park SH, Paschen B, Passeri A, Patra S, Paul S, Pedlar TK, Peruzzi I, Peschke R, Pestotnik R, Pham F, Piccolo M, Piilonen LE, Podesta-Lerma PLM, Podobnik T, Pokharel S, Praz C, Prell S, Prencipe E, Prim MT, Purwar H, Rad N, Rados P, Raeuber G, Raiz S, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Rizzo G, Robertson SH, Roehrken M, Roney JM, Rostomyan A, Rout N, Russo G, Sahoo D, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schmitt C, Schnepf M, Schwanda C, Seino Y, Selce A, Senyo K, Serrano J, Sevior ME, Sfienti C, Shan W, Sharma C, Shen CP, Shi XD, Shillington T, Shiu JG, Shtol D, Shwartz B, Sibidanov A, Simon F, Singh JB, Skorupa J, Sobie RJ, Sobotzik M, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stavroulakis P, Stefkova S, Stottler ZS, Stroili R, Strube J, Sumihama M, Sumisawa K, Sutcliffe W, Svidras H, Takahashi M, Takizawa M, Tamponi U, Tanida K, Tenchini F, Thaller A, Tittel O, Tiwary R, Tonelli D, Torassa E, Toutounji N, Trabelsi K, Tsaklidis I, Uchida M, Ueda I, Uematsu Y, Uglov T, Unger K, Unno Y, Uno K, Uno S, Urquijo P, Ushiroda Y, Vahsen SE, van Tonder R, Varner GS, Varvell KE, Veronesi M, Vismaya VS, Vitale L, Vobbilisetti V, Volpe R, Wach B, Waheed E, Wakai M, Wallner S, Wang E, Wang MZ, Wang Z, Warburton A, Watanabe M, Watanuki S, Welsch M, Wessel C, Xu XP, Yabsley BD, Yamada S, Yan W, Yang SB, Yin JH, Yoshihara K, Yuan CZ, Zani L, Zhang Y, Zhilich V, Zhou JS, Zhou QD, Zhukova VI, Žlebčík R. Tests of Light-Lepton Universality in Angular Asymmetries of B^{0}→D^{*-}ℓν Decays. Phys Rev Lett 2023; 131:181801. [PMID: 37977641 DOI: 10.1103/physrevlett.131.181801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 09/29/2023] [Indexed: 11/19/2023]
Abstract
We present the first comprehensive tests of the universality of the light leptons in the angular distributions of semileptonic B^{0}-meson decays to charged spin-1 charmed mesons. We measure five angular-asymmetry observables as functions of the decay recoil that are sensitive to lepton-universality-violating contributions. We use events where one neutral B is fully reconstructed in ϒ(4S)→BB[over ¯] decays in data corresponding to 189 fb^{-1} integrated luminosity from electron-positron collisions collected with the Belle II detector. We find no significant deviation from the standard model expectations.
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Adachi I, Adamczyk K, Aggarwal L, Ahmed H, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Aversano M, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee S, Bansal S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becker J, Behera PK, Bennett JV, Bernieri E, Bernlochner FU, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhardwaj V, Bhuyan B, Bianchi F, Bilka T, Bilokin S, Biswas D, Bobrov A, Bodrov D, Bolz A, Borah J, Bozek A, Bračko M, Branchini P, Browder TE, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang MC, Chang P, Cheaib R, Cheema P, Chekelian V, Chen YQ, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Cho SJ, Choi SK, Choudhury S, Cinabro D, Cochran J, Corona L, Cremaldi LM, Cunliffe S, Czank T, Das S, Dattola F, De La Cruz-Burelo E, De La Motte SA, de Marino G, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, Dey S, De Yta-Hernandez A, Dhamija R, Di Canto A, Di Capua F, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dort K, Dossett D, Dreyer S, Dubey S, Dujany G, Ecker P, Eliachevitch M, Epifanov D, Feichtinger P, Ferber T, Ferlewicz D, Fillinger T, Finck C, Finocchiaro G, Fodor A, Forti F, Frey A, Fulsom BG, Gabrielli A, Ganiev E, Garcia-Hernandez M, Garmash A, Gaudino G, Gaur V, Gaz A, Gellrich A, Ghevondyan G, Ghosh D, Ghumaryan H, Giakoustidis G, Giordano R, Giri A, Glazov A, Gobbo B, Godang R, Gogota O, Goldenzweig P, Gradl W, Grammatico T, Granderath S, Graziani E, Greenwald D, Gruberová Z, Gu T, Guan Y, Gudkova K, Guilliams J, Halder S, Han Y, Hara T, Hayasaka K, Hayashii H, Hazra S, Hearty C, Hedges MT, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill EC, Hirata H, Hoek M, Hohmann M, Hsu CL, Humair T, Iijima T, Inami K, Inguglia G, Ipsita N, Ishikawa A, Ito S, Itoh R, Iwasaki M, Jackson P, Jacobs WW, Jaffe DE, Jang EJ, Ji QP, Jia S, Jin Y, Johnson A, Joo KK, Junkerkalefeld H, Kakuno H, Kaleta M, Kalita D, Kaliyar AB, Kandra J, Kang KH, Kang S, Karl R, Karyan G, Kawasaki T, Keil F, Ketter C, Kiesling C, Kim CH, Kim DY, Kim KH, Kim YK, Kindo H, Kodyš P, Koga T, Kohani S, Kojima K, Konno T, Korobov A, Korpar S, Kovalenko E, Kowalewski R, Kraetzschmar TMG, Križan P, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumar R, Kumara K, Kunigo T, Kuzmin A, Kwon YJ, Lacaprara S, Lai YT, Lam T, Lanceri L, Lange JS, Laurenza M, Lautenbach K, Leboucher R, Le Diberder FR, Leitl P, Levit D, Lewis PM, Li C, Li LK, Li YB, Libby J, Lieret K, Liu QY, Liu ZQ, Liventsev D, Longo S, Lozar A, Lueck T, Lyu C, Ma Y, Maggiora M, Maharana SP, Maiti R, Maity S, Manfredi R, Manoni E, Manthei AC, Mantovano M, Marcantonio D, Marcello S, Marinas C, Martel L, Martellini C, Martini A, Martinov T, Massaccesi L, Masuda M, Matsuda T, Matsuoka K, Matvienko D, Maurya SK, McKenna JA, Mehta R, Merola M, Metzner F, Milesi M, Miller C, Mirra M, Miyabayashi K, Miyake H, Mizuk R, Mohanty GB, Molina-Gonzalez N, Mondal S, Moneta S, Moser HG, Mrvar M, Mussa R, Nakamura I, Nakamura KR, Nakao M, Nakayama H, Nakazawa H, Nakazawa Y, Narimani Charan A, Naruki M, Narwal D, Natkaniec Z, Natochii A, Nayak L, Nayak M, Nazaryan G, Niebuhr C, Nisar NK, Nishida S, Ogawa S, Ono H, Onuki Y, Oskin P, Otani F, Pakhlov P, Pakhlova G, Paladino A, Panta A, Paoloni E, Pardi S, Parham K, Park J, Park SH, Paschen B, Passeri A, Patra S, Paul S, Pedlar TK, Peruzzi I, Peschke R, Pestotnik R, Pham F, Piccolo M, Piilonen LE, Pinna Angioni G, Podesta-Lerma PLM, Podobnik T, Pokharel S, Polat L, Praz C, Prell S, Prencipe E, Prim MT, Purwar H, Rad N, Rados P, Raeuber G, Raiz S, Ramirez Morales A, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Rizzo G, Rizzuto LB, Robertson SH, Rodríguez Pérez D, Roehrken M, Roney JM, Rostomyan A, Rout N, Russo G, Sahoo D, Sanders DA, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schnepf M, Schueler J, Schwanda C, Seino Y, Selce A, Senyo K, Serrano J, Sevior ME, Sfienti C, Shan W, Sharma C, Shen CP, Shi XD, Shillington T, Shiu JG, Shtol D, Shwartz B, Sibidanov A, Simon F, Singh JB, Skorupa J, Sobie RJ, Sobotzik M, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stavroulakis P, Stefkova S, Stottler ZS, Stroili R, Strube J, Sue Y, Sumihama M, Sumisawa K, Sutcliffe W, Suzuki SY, Svidras H, Takahashi M, Takizawa M, Tamponi U, Tanaka S, Tanida K, Tanigawa H, Tenchini F, Thaller A, Tiwary R, Tonelli D, Torassa E, Toutounji N, Trabelsi K, Tsaklidis I, Uchida M, Ueda I, Uematsu Y, Uglov T, Unger K, Unno Y, Uno K, Uno S, Urquijo P, Ushiroda Y, Vahsen SE, van Tonder R, Varner GS, Varvell KE, Vinokurova A, Vismaya VS, Vitale L, Vobbilisetti V, Volpe R, Vossen A, Wach B, Wakai M, Wakeling HM, Wallner S, Wang E, Wang MZ, Wang XL, Wang Z, Warburton A, Watanabe M, Watanuki S, Welsch M, Wessel C, Won E, Xu XP, Yabsley BD, Yamada S, Yan W, Yang SB, Ye H, Yelton J, Yin JH, Yook YM, Yoshihara K, Yuan CZ, Yusa Y, Zani L, Zhai Y, Zhang Y, Zhilich V, Zhou JS, Zhou QD, Zhou XY, Zhukova VI, Žlebčík R. Search for a τ^{+}τ^{-} Resonance in e^{+}e^{-}→μ^{+}μ^{-}τ^{+}τ^{-} Events with the Belle II Experiment. Phys Rev Lett 2023; 131:121802. [PMID: 37802942 DOI: 10.1103/physrevlett.131.121802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 08/08/2023] [Indexed: 10/08/2023]
Abstract
We report the first search for a nonstandard-model resonance decaying into τ pairs in e^{+}e^{-}→μ^{+}μ^{-}τ^{+}τ^{-} events in the 3.6-10 GeV/c^{2} mass range. We use a 62.8 fb^{-1} sample of e^{+}e^{-} collisions collected at a center-of-mass energy of 10.58 GeV by the Belle II experiment at the SuperKEKB collider. The analysis probes three different models predicting a spin-1 particle coupling only to the heavier lepton families, a Higgs-like spin-0 particle that couples preferentially to charged leptons (leptophilic scalar), and an axionlike particle, respectively. We observe no evidence for a signal and set exclusion limits at 90% confidence level on the product of cross section and branching fraction into τ pairs, ranging from 0.7 to 24 fb, and on the couplings of these processes. We obtain world-leading constraints on the couplings for the leptophilic scalar model for masses above 6.5 GeV/c^{2} and for the axionlike particle model over the entire mass range.
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Adachi I, Adamczyk K, Aggarwal L, Ahmed H, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Aversano M, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee S, Barrett M, Baudot J, Bauer M, Baur A, Beaubien A, Becker J, Behera PK, Bennett JV, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bhuyan B, Bianchi F, Bilka T, Biswas D, Bodrov D, Bondar A, Borah J, Bozek A, Bračko M, Branchini P, Briere RA, Browder TE, Budano A, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang P, Cheaib R, Cheema P, Chekelian V, Chen C, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Cho SJ, Choi SK, Choudhury S, Cochran J, Corona L, Cremaldi LM, Das S, Dattola F, De La Cruz-Burelo E, De La Motte SA, de Marino G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, De Yta-Hernandez A, Dhamija R, Di Canto A, Di Capua F, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dort K, Dreyer S, Dubey S, Dujany G, Ecker P, Eliachevitch M, Feichtinger P, Ferber T, Ferlewicz D, Fillinger T, Finck C, Finocchiaro G, Fodor A, Forti F, Fulsom BG, Gabrielli A, Ganiev E, Garcia-Hernandez M, Garg R, Garmash A, Gaudino G, Gaur V, Gaz A, Gellrich A, Ghosh D, Giakoustidis G, Giordano R, Giri A, Glazov A, Gobbo B, Godang R, Goldenzweig P, Gradl W, Grammatico T, Granderath S, Graziani E, Greenwald D, Gruberová Z, Gu T, Guan Y, Gudkova K, Halder S, Han Y, Hara K, Hara T, Hayasaka K, Hayashii H, Hazra S, Hearty C, Hedges MT, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill EC, Hoek M, Hohmann M, Hsu CL, Humair T, Iijima T, Inami K, Ipsita N, Ishikawa A, Ito S, Itoh R, Iwasaki M, Jackson P, Jacobs WW, Jang EJ, Ji QP, Jia S, Jin Y, Johnson A, Joo KK, Junkerkalefeld H, Kaleta M, Kaliyar AB, Kandra J, Kang KH, Kang S, Kar S, Karyan G, Kawasaki T, Keil F, Ketter C, Kiesling C, Kim CH, Kim DY, Kim KH, Kim YK, Kindo H, Kodyš P, Koga T, Kohani S, Kojima K, Korobov A, Korpar S, Kovalenko E, Kowalewski R, Kraetzschmar TMG, Križan P, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumara K, Kunigo T, Kuzmin A, Kwon YJ, Lacaprara S, Lai YT, Lam T, Lange JS, Laurenza M, Leboucher R, Le Diberder FR, Leitl P, Levit D, Li C, Li LK, Libby J, Liu QY, Liu ZQ, Liventsev D, Longo S, Lueck T, Luo T, Lyu C, Ma Y, Maggiora M, Maharana SP, Maiti R, Maity S, Mancinelli G, Manfredi R, Manoni E, Mantovano M, Marcantonio D, Marcello S, Marinas C, Martel L, Martellini C, Martinov T, Massaccesi L, Masuda M, Matsuda T, Matsuoka K, Matvienko D, Maurya SK, McKenna JA, Mehta R, Meier F, Merola M, Metzner F, Milesi M, Miller C, Mirra M, Miyabayashi K, Mizuk R, Mohanty GB, Molina-Gonzalez N, Mondal S, Moneta S, Moser HG, Mrvar M, Mussa R, Nakamura I, Nakazawa Y, Narimani Charan A, Naruki M, Natochii A, Nayak L, Nayak M, Nazaryan G, Nisar NK, Nishida S, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Paladino A, Paoloni E, Pardi S, Parham K, Park H, Park SH, Passeri A, Patra S, Paul S, Pedlar TK, Peschke R, Pestotnik R, Pham F, Piccolo M, Piilonen LE, Podesta-Lerma PLM, Podobnik T, Pokharel S, Praz C, Prell S, Prencipe E, Prim MT, Purwar H, Rad N, Rados P, Raeuber G, Raiz S, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Rizzo G, Robertson SH, Roehrken M, Roney JM, Rostomyan A, Rout N, Russo G, Sahoo D, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schmitt C, Schwanda C, Schwartz AJ, Seino Y, Selce A, Senyo K, Serrano J, Sevior ME, Sfienti C, Shan W, Sharma C, Shi XD, Shillington T, Shiu JG, Shtol D, Sibidanov A, Simon F, Singh JB, Skorupa J, Sobie RJ, Sobotzik M, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stavroulakis P, Stefkova S, Stottler ZS, Stroili R, Sumihama M, Sumisawa K, Sutcliffe W, Svidras H, Takahashi M, Takizawa M, Tamponi U, Tanaka S, Tanida K, Tenchini F, Thaller A, Tittel O, Tiwary R, Tonelli D, Torassa E, Trabelsi K, Tsaklidis I, Uchida M, Ueda I, Uglov T, Unger K, Unno Y, Uno K, Uno S, Urquijo P, Ushiroda Y, Vahsen SE, van Tonder R, Varner GS, Varvell KE, Vinokurova A, Vismaya VS, Vitale L, Wach B, Wakai M, Wakeling HM, Wallner S, Wang E, Wang MZ, Wang Z, Warburton A, Watanabe M, Watanuki S, Welsch M, Wessel C, Won E, Xu XP, Yabsley BD, Yamada S, Yan W, Yang SB, Yin JH, Yoshihara K, Yuan CZ, Yusa Y, Zani L, Zhang Y, Zhilich V, Zhou QD, Zhukova VI. Measurement of CP Violation in B^{0}→K_{S}^{0}π^{0} Decays at Belle II. Phys Rev Lett 2023; 131:111803. [PMID: 37774261 DOI: 10.1103/physrevlett.131.111803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/26/2023] [Indexed: 10/01/2023]
Abstract
We report a measurement of the CP-violating parameters C and S in B^{0}→K_{S}^{0}π^{0} decays at Belle II using a sample of 387×10^{6} BB[over ¯] events recorded in e^{+}e^{-} collisions at a center-of-mass energy corresponding to the ϒ(4S) resonance. These parameters are determined by fitting the proper decay-time distribution of a sample of 415 signal events. We obtain C=-0.04_{-0.15}^{+0.14}±0.05 and S=0.75_{-0.23}^{+0.20}±0.04, where the first uncertainties are statistical and the second are systematic.
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Wakai M, Hayashi S, Chiba Y, Koike S, Nagashima K, Kobayashi Y. Growth and morphologic response of rumen methanogenic archaea and bacteria to cashew nut shell liquid and its alkylphenol components. Anim Sci J 2021; 92:e13598. [PMID: 34350672 DOI: 10.1111/asj.13598] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/12/2021] [Accepted: 06/29/2021] [Indexed: 11/29/2022]
Abstract
The growth and morphology of rumen methanogenic archaea (15 strains of 10 species in 5 genera, including 7 strains newly isolated in the present study) and bacteria (14 species in 12 genera) were investigated using unsupplemented in vitro pure cultures and cultures supplemented with cashew nut shell liquid (CNSL) and its phenolic compound components, anti-methanogenic agents for ruminant animals. Growth of most of the methanogens tested was inhibited by CNSL and alkylphenols at different concentrations ranging from 1.56 to 12.5 μg/ml. Of the alkylphenols tested, anacardic acid exhibited the most potent growth inhibition. Three gram-negative bacterial species involved in propionate production were resistant to CNSL and alkylphenols (>50 μg/ml). All the methanogens and bacteria that were sensitive to CNSL and alkylphenols exhibited altered morphology; disruption of the cell surface was notable, possibly due to surfactant activity of the tested materials. Cells division was inhibited in some organisms, with cell elongation and unclear septum formation observed. These results indicate that CNSL and alkylphenols, particularly anacardic acid, inhibit both rumen bacteria and methanogens in a selective manner, which could help mitigate rumen methane generation.
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Affiliation(s)
- Makimi Wakai
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Shusuke Hayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Yuko Chiba
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Satoshi Koike
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Kyo Nagashima
- Agri-Bio Technology Scetion, Agri-Bio Business Department, Idemitsu Kosan Co., Ltd., Tsukuba, Ibaraki, Japan
| | - Yasuo Kobayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido, Japan
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Abudinén F, Adachi I, Aihara H, Akopov N, Aloisio A, Ameli F, Anh Ky N, Asner DM, Aushev T, Aushev V, Babu V, Baehr S, Bahinipati S, Bambade P, Banerjee S, Bansal S, Baudot J, Becker J, Behera PK, Bennett JV, Bernieri E, Bernlochner FU, Bertemes M, Bessner M, Bettarini S, Bhardwaj V, Bianchi F, Bilka T, Bilokin S, Biswas D, Bračko M, Branchini P, Braun N, Browder TE, Budano A, Bussino S, Campajola M, Casarosa G, Cecchi C, Červenkov D, Chang MC, Chang P, Cheaib R, Chekelian V, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Cho SJ, Choi SK, Cinabro D, Corona L, Cremaldi LM, Cunliffe S, Dash N, Dattola F, De La Cruz-Burelo E, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, De Yta-Hernandez A, Di Capua F, Doležal Z, Dong TV, Dort K, Dossett D, Dujany G, Eidelman S, Ferber T, Ferlewicz D, Fiore S, Fodor A, Forti F, Fulsom BG, Ganiev E, Garg R, Garmash A, Gaur V, Gaz A, Gebauer U, Gellrich A, Geßler T, Giordano R, Giri A, Gobbo B, Godang R, Goldenzweig P, Golob B, Gomis P, Gradl W, Graziani E, Greenwald D, Hadjivasiliou C, Halder S, Hartbrich O, Hayasaka K, Hayashii H, Hearty C, Hedges MT, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill EC, Hirata H, Hoek M, Hohmann M, Hsu CL, Hu Y, Inami K, Inguglia G, Irakkathil Jabbar J, Ishikawa A, Itoh R, Jackson P, Jacobs WW, Jaffe DE, Jang EJ, Jia S, Jin Y, Joo C, Kaliyar AB, Kandra J, Karyan G, Kato Y, Kichimi H, Kiesling C, Kim CH, Kim DY, Kim HJ, Kim SH, Kim YK, Kimmel TD, Kinoshita K, Kleinwort C, Kodyš P, Koga T, Kohani S, Komarov I, Korpar S, Kraetzschmar TMG, Križan P, Krokovny P, Kuhr T, Kumar M, Kumar R, Kumara K, Kurz S, Kwon YJ, Lacaprara S, La Licata C, Lanceri L, Lange JS, Lee IS, Lee SC, Leitl P, Levit D, Lewis PM, Li C, Li LK, Li YB, Libby J, Lieret K, Li Gioi L, Liptak Z, Liu QY, Liventsev D, Longo S, Luo T, MacQueen C, Maeda Y, Manfredi R, Manoni E, Marcello S, Marinas C, Martini A, Masuda M, Matsuoka K, Matvienko D, Meggendorfer F, Meier F, Merola M, Metzner F, Milesi M, Miller C, Miyabayashi K, Mizuk R, Azmi K, Mohanty GB, Moser HG, Mrvar M, Müller FJ, Mussa R, Nakamura I, Nakao M, Nakazawa H, Natochii A, Niebuhr C, Nisar NK, Nishida S, Nouxman MHA, Ogawa K, Ogawa S, Ono H, Oskin P, Ozaki H, Pakhlov P, Paladino A, Panta A, Paoloni E, Pardi S, Park H, Park SH, Paschen B, Passeri A, Pathak A, Patra S, Paul S, Pedlar TK, Peruzzi I, Peschke R, Piccolo M, Piilonen LE, Polat G, Popov V, Praz C, Prencipe E, Prim MT, Purohit MV, Rad N, Rados P, Rasheed R, Reif M, Reiter S, Remnev M, Ripp-Baudot I, Ritter M, Ritzert M, Rizzo G, Robertson SH, Rodríguez Pérez D, Roney JM, Rosenfeld C, Rostomyan A, Rout N, Sahoo D, Sakai Y, Sanders DA, Sandilya S, Sangal A, Santelj L, Sato Y, Savinov V, Scavino B, Schwanda C, Schwartz AJ, Seddon RM, Seino Y, Selce A, Senyo K, Serrano J, Sevior ME, Sfienti C, Shiu JG, Sibidanov A, Simon F, Sobie RJ, Soffer A, Solovieva E, Spataro S, Spruck B, Starič M, Stefkova S, Stottler ZS, Stroili R, Strube J, Sumihama M, Sumiyoshi T, Summers DJ, Sutcliffe W, Svidras H, Tabata M, Takizawa M, Tamponi U, Tanaka S, Tanida K, Tanigawa H, Taras P, Tenchini F, Tonelli D, Torassa E, Trabelsi K, Uchida M, Uglov T, Unger K, Unno Y, Uno S, Urquijo P, Ushiroda Y, Vahsen SE, van Tonder R, Varner GS, Varvell KE, Vinokurova A, Vitale L, Waheed E, Wakai M, Wakeling HM, Wang CH, Wang MZ, Wang XL, Warburton A, Watanabe M, Watanuki S, Webb J, Wehle S, Welsch M, Wessel C, Wiechczynski J, Windel H, Won E, Wu LJ, Xu XP, Yabsley B, Yan W, Yang SB, Ye H, Yonenaga M, Yuan CZ, Yusa Y, Zani L, Zhou QD, Zhukova VI. Search for Axionlike Particles Produced in e^{+}e^{-} Collisions at Belle II. Phys Rev Lett 2020; 125:161806. [PMID: 33124872 DOI: 10.1103/physrevlett.125.161806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
We present a search for the direct production of a light pseudoscalar a decaying into two photons with the Belle II detector at the SuperKEKB collider. We search for the process e^{+}e^{-}→γa, a→γγ in the mass range 0.2<m_{a}<9.7 GeV/c^{2} using data corresponding to an integrated luminosity of (445±3) pb^{-1}. Light pseudoscalars interacting predominantly with standard model gauge bosons (so-called axionlike particles or ALPs) are frequently postulated in extensions of the standard model. We find no evidence for ALPs and set 95% confidence level upper limits on the coupling strength g_{aγγ} of ALPs to photons at the level of 10^{-3} GeV^{-1}. The limits are the most restrictive to date for 0.2<m_{a}<1 GeV/c^{2}.
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Affiliation(s)
- F Abudinén
- INFN Sezione di Trieste, I-34127 Trieste
| | - I Adachi
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - N Akopov
- Alikhanyan National Science Laboratory, Yerevan 0036
| | - A Aloisio
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - F Ameli
- INFN Sezione di Roma, I-00185 Roma
| | - N Anh Ky
- Institute of Theoretical and Applied Research (ITAR), Duy Tan University, Hanoi 100000
- Institute of Physics, Vietnam Academy of Science and Technology (VAST), Hanoi
| | - D M Asner
- Brookhaven National Laboratory, Upton, New York 11973
| | - T Aushev
- Higher School of Economics (HSE), Moscow 101000
| | - V Aushev
- Taras Shevchenko National University of Kiev, Kiev
| | - V Babu
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Baehr
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - S Bahinipati
- Indian Institute of Technology Bhubaneswar, Satya Nagar 751007
| | - P Bambade
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay
| | - Sw Banerjee
- University of Louisville, Louisville, Kentucky 40292
| | - S Bansal
- Panjab University, Chandigarh 160014
| | - J Baudot
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - J Becker
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - P K Behera
- Indian Institute of Technology Madras, Chennai 600036
| | - J V Bennett
- University of Mississippi, University, Mississippi 38677
| | | | | | - M Bertemes
- Institute of High Energy Physics, Vienna 1050
| | - M Bessner
- University of Hawaii, Honolulu, Hawaii 96822
| | - S Bettarini
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - V Bhardwaj
- Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306
| | - F Bianchi
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - T Bilka
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - S Bilokin
- Ludwig Maximilians University, 80539 Munich
| | - D Biswas
- University of Louisville, Louisville, Kentucky 40292
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - N Braun
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - A Budano
- INFN Sezione di Roma Tre, I-00146 Roma
| | - S Bussino
- INFN Sezione di Roma Tre, I-00146 Roma
- Dipartimento di Matematica e Fisica, Università di Roma Tre, I-00146 Roma
| | - M Campajola
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - G Casarosa
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - C Cecchi
- INFN Sezione di Perugia, I-06123 Perugia
- Dipartimento di Fisica, Università di Perugia, I-06123 Perugia
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - M-C Chang
- Department of Physics, Fu Jen Catholic University, Taipei 24205
| | - P Chang
- Department of Physics, National Taiwan University, Taipei 10617
| | - R Cheaib
- University of British Columbia, Vancouver, British Columbia V6T 1Z1
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - B G Cheon
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - K Chilikin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | | | - H-E Cho
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 34141
| | - S-J Cho
- Yonsei University, Seoul 03722
| | - S-K Choi
- Gyeongsang National University, Jinju 52828
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - L Corona
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - L M Cremaldi
- University of Mississippi, University, Mississippi 38677
| | - S Cunliffe
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - N Dash
- Indian Institute of Technology Madras, Chennai 600036
| | - F Dattola
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - E De La Cruz-Burelo
- Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360
| | - G De Nardo
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - M De Nuccio
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | - R de Sangro
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - M Destefanis
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - A De Yta-Hernandez
- Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360
| | - F Di Capua
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - T V Dong
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - K Dort
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - D Dossett
- School of Physics, University of Melbourne, Victoria 3010
| | - G Dujany
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - D Ferlewicz
- School of Physics, University of Melbourne, Victoria 3010
| | - S Fiore
- INFN Sezione di Roma, I-00185 Roma
| | - A Fodor
- McGill University, Montréal, Québec, H3A 2T8
| | - F Forti
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - E Ganiev
- INFN Sezione di Trieste, I-34127 Trieste
- Dipartimento di Fisica, Università di Trieste, I-34127 Trieste
| | - R Garg
- Panjab University, Chandigarh 160014
| | - A Garmash
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - V Gaur
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - A Gaz
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - U Gebauer
- II. Physikalisches Institut, Georg-August-Universität Göttingen, 37073 Göttingen
| | - A Gellrich
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Geßler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - R Giordano
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - A Giri
- Indian Institute of Technology Hyderabad, Telangana 502285
| | - B Gobbo
- INFN Sezione di Trieste, I-34127 Trieste
| | - R Godang
- University of South Alabama, Mobile, Alabama 36688
| | - P Goldenzweig
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Gomis
- Instituto de Fisica Corpuscular, Paterna 46980
| | - W Gradl
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | | | - D Greenwald
- Department of Physics, Technische Universität München, 85748 Garching
| | - C Hadjivasiliou
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - S Halder
- Tata Institute of Fundamental Research, Mumbai 400005
| | - O Hartbrich
- University of Hawaii, Honolulu, Hawaii 96822
| | | | | | - C Hearty
- Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2
- University of British Columbia, Vancouver, British Columbia V6T 1Z1
| | - M T Hedges
- University of Hawaii, Honolulu, Hawaii 96822
| | - I Heredia de la Cruz
- Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360
- Consejo Nacional de Ciencia y Tecnología, Mexico City 03940
| | | | - A Hershenhorn
- University of British Columbia, Vancouver, British Columbia V6T 1Z1
| | - T Higuchi
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - E C Hill
- University of British Columbia, Vancouver, British Columbia V6T 1Z1
| | - H Hirata
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - M Hoek
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - M Hohmann
- School of Physics, University of Melbourne, Victoria 3010
| | - C-L Hsu
- School of Physics, University of Sydney, New South Wales 2006
| | - Y Hu
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - G Inguglia
- Institute of High Energy Physics, Vienna 1050
| | - J Irakkathil Jabbar
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Ishikawa
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - R Itoh
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Jackson
- Department of Physics, University of Adelaide, Adelaide, South Australia 5005
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York 11973
| | - E-J Jang
- Gyeongsang National University, Jinju 52828
| | - S Jia
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - Y Jin
- INFN Sezione di Trieste, I-34127 Trieste
| | - C Joo
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - A B Kaliyar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - J Kandra
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - G Karyan
- Alikhanyan National Science Laboratory, Yerevan 0036
| | - Y Kato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - H Kichimi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - C Kiesling
- Max-Planck-Institut für Physik, 80805 München
| | - C-H Kim
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - D Y Kim
- Soongsil University, Seoul 06978
| | - H J Kim
- Kyungpook National University, Daegu 41566
| | - S-H Kim
- Seoul National University, Seoul 08826
| | - Y-K Kim
- Yonsei University, Seoul 03722
| | - T D Kimmel
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - K Kinoshita
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C Kleinwort
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - T Koga
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Kohani
- University of Hawaii, Honolulu, Hawaii 96822
| | - I Komarov
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - M Kumar
- Malaviya National Institute of Technology Jaipur, Jaipur 302017
| | - R Kumar
- Punjab Agricultural University, Ludhiana 141004
| | - K Kumara
- Wayne State University, Detroit, Michigan 48202
| | - S Kurz
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | | | - C La Licata
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - L Lanceri
- INFN Sezione di Trieste, I-34127 Trieste
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - I-S Lee
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - S C Lee
- Kyungpook National University, Daegu 41566
| | - P Leitl
- Max-Planck-Institut für Physik, 80805 München
| | - D Levit
- Department of Physics, Technische Universität München, 85748 Garching
| | | | - C Li
- Liaoning Normal University, Dalian 116029
| | - L K Li
- University of Cincinnati, Cincinnati, Ohio 45221
| | - Y B Li
- Peking University, Beijing 100871
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - K Lieret
- Ludwig Maximilians University, 80539 Munich
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - Z Liptak
- University of Hawaii, Honolulu, Hawaii 96822
| | - Q Y Liu
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Wayne State University, Detroit, Michigan 48202
| | - S Longo
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Luo
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - C MacQueen
- School of Physics, University of Melbourne, Victoria 3010
| | - Y Maeda
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - R Manfredi
- INFN Sezione di Trieste, I-34127 Trieste
- Dipartimento di Fisica, Università di Trieste, I-34127 Trieste
| | - E Manoni
- INFN Sezione di Perugia, I-06123 Perugia
| | - S Marcello
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - C Marinas
- Instituto de Fisica Corpuscular, Paterna 46980
| | - A Martini
- INFN Sezione di Roma Tre, I-00146 Roma
- Dipartimento di Matematica e Fisica, Università di Roma Tre, I-00146 Roma
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047
| | - K Matsuoka
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | | | - F Meier
- Duke University, Durham, North Carolina 27708
| | - M Merola
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Agraria, Università di Napoli Federico II, I-80055 Portici (NA)
| | - F Metzner
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - M Milesi
- School of Physics, University of Melbourne, Victoria 3010
| | - C Miller
- University of Victoria, Victoria, British Columbia V8W 3P6
| | | | - R Mizuk
- Higher School of Economics (HSE), Moscow 101000
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - K Azmi
- National Centre for Particle Physics, University Malaya, 50603 Kuala Lumpur
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - H-G Moser
- Max-Planck-Institut für Physik, 80805 München
| | - M Mrvar
- Institute of High Energy Physics, Vienna 1050
| | - F J Müller
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - R Mussa
- INFN Sezione di Torino, I-10125 Torino
| | - I Nakamura
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Nakao
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - H Nakazawa
- Department of Physics, National Taiwan University, Taipei 10617
| | - A Natochii
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Niebuhr
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - N K Nisar
- Brookhaven National Laboratory, Upton, New York 11973
| | - S Nishida
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M H A Nouxman
- National Centre for Particle Physics, University Malaya, 50603 Kuala Lumpur
| | - K Ogawa
- Niigata University, Niigata 950-2181
| | - S Ogawa
- Toho University, Funabashi 274-8510
| | - H Ono
- Niigata University, Niigata 950-2181
| | - P Oskin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - H Ozaki
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Pakhlov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - A Paladino
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - A Panta
- University of Mississippi, University, Mississippi 38677
| | - E Paoloni
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - S Pardi
- INFN Sezione di Napoli, I-80126 Napoli
| | - H Park
- Kyungpook National University, Daegu 41566
| | | | | | - A Passeri
- INFN Sezione di Roma Tre, I-00146 Roma
| | - A Pathak
- University of Louisville, Louisville, Kentucky 40292
| | - S Patra
- Indian Institute of Science Education and Research Mohali, SAS Nagar, 140306
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | - I Peruzzi
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - R Peschke
- University of Hawaii, Honolulu, Hawaii 96822
| | - M Piccolo
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - L E Piilonen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - G Polat
- Aix Marseille Université, CNRS/IN2P3, CPPM, 13288 Marseille
| | - V Popov
- Higher School of Economics (HSE), Moscow 101000
| | - C Praz
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | - M T Prim
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - M V Purohit
- Okinawa Institute of Science and Technology, Okinawa 904-0495
| | - N Rad
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - P Rados
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - R Rasheed
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - M Reif
- Max-Planck-Institut für Physik, 80805 München
| | - S Reiter
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - M Remnev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - I Ripp-Baudot
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - M Ritzert
- University of Heidelberg, 68131 Mannheim
| | - G Rizzo
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - S H Robertson
- Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2
- McGill University, Montréal, Québec, H3A 2T8
| | | | - J M Roney
- Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2
- University of Victoria, Victoria, British Columbia V8W 3P6
| | - C Rosenfeld
- University of South Carolina, Columbia, South Carolina 29208
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - N Rout
- Indian Institute of Technology Madras, Chennai 600036
| | - D Sahoo
- Tata Institute of Fundamental Research, Mumbai 400005
| | - Y Sakai
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - D A Sanders
- University of Mississippi, University, Mississippi 38677
| | - S Sandilya
- University of Cincinnati, Cincinnati, Ohio 45221
| | - A Sangal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - L Santelj
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - Y Sato
- Department of Physics, Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - B Scavino
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050
| | - A J Schwartz
- University of Cincinnati, Cincinnati, Ohio 45221
| | - R M Seddon
- McGill University, Montréal, Québec, H3A 2T8
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - A Selce
- INFN Sezione di Roma, I-00185 Roma
- Università di Roma "La Sapienza," I-00185 Roma
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - J Serrano
- Aix Marseille Université, CNRS/IN2P3, CPPM, 13288 Marseille
| | - M E Sevior
- School of Physics, University of Melbourne, Victoria 3010
| | - C Sfienti
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - A Sibidanov
- University of Victoria, Victoria, British Columbia V8W 3P6
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
| | - R J Sobie
- Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2
- University of Victoria, Victoria, British Columbia V8W 3P6
| | - A Soffer
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978
| | - E Solovieva
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - S Spataro
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - B Spruck
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - S Stefkova
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Z S Stottler
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - R Stroili
- INFN Sezione di Padova, I-35131 Padova
- Dipartimento di Fisica e Astronomia, Università di Padova, I-35131 Padova
| | - J Strube
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - M Sumihama
- Gifu University, Gifu 501-1193
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - D J Summers
- University of Mississippi, University, Mississippi 38677
| | | | - H Svidras
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - M Tabata
- Chiba University, Chiba 263-8522
| | - M Takizawa
- J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Theoretical Research Division, Nishina Center, RIKEN, Saitama 351-0198
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN Sezione di Torino, I-10125 Torino
| | - S Tanaka
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195
| | - H Tanigawa
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - P Taras
- Université de Montréal, Physique des Particules, Montréal, Québec H3C 3J7
| | - F Tenchini
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - D Tonelli
- INFN Sezione di Trieste, I-34127 Trieste
| | - E Torassa
- INFN Sezione di Padova, I-35131 Padova
| | - K Trabelsi
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - T Uglov
- Higher School of Economics (HSE), Moscow 101000
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - K Unger
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - Y Unno
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - S Uno
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Urquijo
- School of Physics, University of Melbourne, Victoria 3010
| | - Y Ushiroda
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | | | - G S Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - K E Varvell
- School of Physics, University of Sydney, New South Wales 2006
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - L Vitale
- INFN Sezione di Trieste, I-34127 Trieste
- Dipartimento di Fisica, Università di Trieste, I-34127 Trieste
| | - E Waheed
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Wakai
- University of British Columbia, Vancouver, British Columbia V6T 1Z1
| | | | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - X L Wang
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - A Warburton
- McGill University, Montréal, Québec, H3A 2T8
| | | | - S Watanuki
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay
| | - J Webb
- School of Physics, University of Melbourne, Victoria 3010
| | - S Wehle
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | | | | | - H Windel
- Max-Planck-Institut für Physik, 80805 München
| | - E Won
- Korea University, Seoul 02841
| | - L J Wu
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - X P Xu
- Soochow University, Suzhou 215006
| | - B Yabsley
- School of Physics, University of Sydney, New South Wales 2006
| | - W Yan
- University of Science and Technology of China, Hefei 230026
| | | | - H Ye
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - M Yonenaga
- Tokyo Metropolitan University, Tokyo 192-0397
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - L Zani
- Aix Marseille Université, CNRS/IN2P3, CPPM, 13288 Marseille
| | - Q D Zhou
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - V I Zhukova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
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Adachi I, Ahlburg P, Aihara H, Akopov N, Aloisio A, Anh Ky N, Asner DM, Atmacan H, Aushev T, Aushev V, Aziz T, Babu V, Baehr S, Bambade P, Banerjee S, Bansal V, Barrett M, Baudot J, Becker J, Behera PK, Bennett JV, Bernieri E, Bernlochner FU, Bertemes M, Bessner M, Bettarini S, Bianchi F, Biswas D, Bozek A, Bračko M, Branchini P, Briere RA, Browder TE, Budano A, Burmistrov L, Bussino S, Campajola M, Cao L, Casarosa G, Cecchi C, Červenkov D, Chang MC, Cheaib R, Chekelian V, Chen YQ, Chen YT, Cheon BG, Chilikin K, Cho K, Cho S, Choi SK, Choudhury S, Cinabro D, Corona L, Cremaldi LM, Cunliffe S, Czank T, Dattola F, De La Cruz-Burelo E, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, Dey S, De Yta-Hernandez A, Di Capua F, Doležal Z, Domínguez Jiménez I, Dong TV, Dort K, Dossett D, Dubey S, Duell S, Dujany G, Eidelman S, Eliachevitch M, Fast JE, Ferber T, Ferlewicz D, Finocchiaro G, Fiore S, Fodor A, Forti F, Fulsom BG, Ganiev E, Garcia-Hernandez M, Garg R, Gaur V, Gaz A, Gellrich A, Gemmler J, Geßler T, Giordano R, Giri A, Gobbo B, Godang R, Goldenzweig P, Golob B, Gomis P, Gradl W, Graziani E, Greenwald D, Guan Y, Hadjivasiliou C, Halder S, Hara T, Hartbrich O, Hayasaka K, Hayashii H, Hearty C, Hedges MT, Heredia de la Cruz I, Hernández Villanueva M, Hershenhorn A, Higuchi T, Hill EC, Hoek M, Hsu CL, Hu Y, Iijima T, Inami K, Inguglia G, Irakkathil Jabbar J, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaffe DE, Jang EJ, Jeon HB, Jia S, Jin Y, Joo C, Joo KK, Kahn J, Kakuno H, Kaliyar AB, Kandra J, Karyan G, Kato Y, Kawasaki T, Kim BH, Kim CH, Kim DY, Kim KH, Kim SH, Kim YK, Kim Y, Kimmel TD, Kindo H, Kleinwort C, Kodyš P, Koga T, Kohani S, Komarov I, Korpar S, Kovalchuk N, Kraetzschmar TMG, Križan P, Kroeger R, Krokovny P, Kuhr T, Kumar J, Kumar M, Kumar R, Kumara K, Kurz S, Kuzmin A, Kwon YJ, Lacaprara S, La Licata C, Lanceri L, Lange JS, Lautenbach K, Lee IS, Lee SC, Leitl P, Levit D, Li LK, Li YB, Libby J, Lieret K, Li Gioi L, Liptak Z, Liu QY, Liventsev D, Longo S, Luo T, Maeda Y, Maggiora M, Manoni E, Marcello S, Marinas C, Martini A, Masuda M, Matsuda T, Matsuoka K, Matvienko D, Meggendorfer F, Mei JC, Meier F, Merola M, Metzner F, Milesi M, Miller C, Miyabayashi K, Miyake H, Mizuk R, Azmi K, Mohanty GB, Moon T, Morii T, Moser HG, Mueller F, Müller FJ, Muller T, Muroyama G, Mussa R, Nakano E, Nakao M, Nayak M, Nazaryan G, Neverov D, Niebuhr C, Nisar NK, Nishida S, Nishimura K, Nishimura M, Oberhof B, Ogawa K, Onishchuk Y, Ono H, Onuki Y, Oskin P, Ozaki H, Pakhlov P, Pakhlova G, Paladino A, Panta A, Paoloni E, Park H, Paschen B, Passeri A, Pathak A, Paul S, Pedlar TK, Peruzzi I, Peschke R, Pestotnik R, Piccolo M, Piilonen LE, Popov V, Praz C, Prencipe E, Prim MT, Purohit MV, Rados P, Rasheed R, Reiter S, Remnev M, Resmi PK, Ripp-Baudot I, Ritter M, Rizzo G, Rizzuto LB, Robertson SH, Rodríguez Pérez D, Roney JM, Rosenfeld C, Rostomyan A, Rout N, Russo G, Sahoo D, Sakai Y, Sandilya S, Sangal A, Santelj L, Sartori P, Sato Y, Savinov V, Scavino B, Schueler J, Schwanda C, Seddon RM, Seino Y, Selce A, Senyo K, Sfienti C, Shen CP, Shiu JG, Shwartz B, Sibidanov A, Simon F, Sobie RJ, Soffer A, Sokolov A, Solovieva E, Spataro S, Spruck B, Starič M, Stefkova S, Stottler ZS, Stroili R, Strube J, Sumihama M, Sumiyoshi T, Summers DJ, Suzuki SY, Tabata M, Takizawa M, Tamponi U, Tanaka S, Tanida K, Taniguchi N, Taras P, Tenchini F, Torassa E, Trabelsi K, Tsuboyama T, Uchida M, Unger K, Unno Y, Uno S, Ushiroda Y, Vahsen SE, van Tonder R, Varner GS, Varvell KE, Vinokurova A, Vitale L, Vossen A, Wakai M, Wakeling HM, Wan Abdullah W, Wang CH, Wang MZ, Warburton A, Watanabe M, Webb J, Wehle S, Wessel C, Wiechczynski J, Windel H, Won E, Yabsley B, Yamada S, Yan W, Yang SB, Ye H, Yin JH, Yonenaga M, Yuan CZ, Yusa Y, Zani L, Zhang Z, Zhilich V, Zhou QD, Zhou XY, Zhukova VI. Search for an Invisibly Decaying Z^{'} Boson at Belle II in e^{+}e^{-}→μ^{+}μ^{-}(e^{±}μ^{∓}) Plus Missing Energy Final States. Phys Rev Lett 2020; 124:141801. [PMID: 32338980 DOI: 10.1103/physrevlett.124.141801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 02/24/2020] [Indexed: 06/11/2023]
Abstract
Theories beyond the standard model often predict the existence of an additional neutral boson, the Z^{'}. Using data collected by the Belle II experiment during 2018 at the SuperKEKB collider, we perform the first searches for the invisible decay of a Z^{'} in the process e^{+}e^{-}→μ^{+}μ^{-}Z^{'} and of a lepton-flavor-violating Z^{'} in e^{+}e^{-}→e^{±}μ^{∓}Z^{'}. We do not find any excess of events and set 90% credibility level upper limits on the cross sections of these processes. We translate the former, in the framework of an L_{μ}-L_{τ} theory, into upper limits on the Z^{'} coupling constant at the level of 5×10^{-2}-1 for M_{Z^{'}}≤6 GeV/c^{2}.
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Affiliation(s)
- I Adachi
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | | | - H Aihara
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - N Akopov
- Alikhanyan National Science Laboratory, Yerevan 0036
| | - A Aloisio
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - N Anh Ky
- Institute of Theoretical and Applied Research (ITAR), Duy Tan University, Hanoi 100000, Vietnam
- Institute of Physics, Hanoi
| | - D M Asner
- Brookhaven National Laboratory, Upton, New York 11973
| | - H Atmacan
- University of Cincinnati, Cincinnati, Ohio 45221
| | - T Aushev
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - V Aushev
- Taras Shevchenko National Univ. of Kiev, Kiev
| | - T Aziz
- Tata Institute of Fundamental Research, Mumbai 400005
| | - V Babu
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Baehr
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - P Bambade
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex
| | - Sw Banerjee
- University of Louisville, Louisville, Kentucky 40292
| | - V Bansal
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - M Barrett
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - J Baudot
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - J Becker
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - P K Behera
- Indian Institute of Technology Madras, Chennai 600036
| | - J V Bennett
- University of Mississippi, University, Mississippi 38677
| | | | | | - M Bertemes
- Institute of High Energy Physics, Vienna 1050, Austria
| | - M Bessner
- University of Hawaii, Honolulu, Hawaii 96822
| | - S Bettarini
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - F Bianchi
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - D Biswas
- University of Louisville, Louisville, Kentucky 40292
| | - A Bozek
- H. Niewodniczanski Institute of Nuclear Physics, Krakow 31-342
| | - M Bračko
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | | | - R A Briere
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
| | - T E Browder
- University of Hawaii, Honolulu, Hawaii 96822
| | - A Budano
- INFN Sezione di Roma Tre, I-00146 Roma
| | - L Burmistrov
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex
| | - S Bussino
- INFN Sezione di Roma Tre, I-00146 Roma
- Dipartimento di Matematica e Fisica, Università di Roma Tre, I-00146 Roma
| | - M Campajola
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - L Cao
- University of Bonn, 53115 Bonn
| | - G Casarosa
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - C Cecchi
- INFN Sezione di Perugia, I-06123 Perugia
- Dipartimento di Fisica, Università di Perugia, I-06123 Perugia
| | - D Červenkov
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - M-C Chang
- Department of Physics, Fu Jen Catholic University, Taipei 24205
| | - R Cheaib
- University of British Columbia, Vancouver, British Columbia, V6T 1Z1
| | - V Chekelian
- Max-Planck-Institut für Physik, 80805 München
| | - Y Q Chen
- University of Science and Technology of China, Hefei 230026
| | - Y-T Chen
- Department of Physics, National Taiwan University, Taipei 10617
| | - B G Cheon
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - K Chilikin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - K Cho
- Korea Institute of Science and Technology Information, Daejeon 34141
| | - S Cho
- Yonsei University, Seoul 03722
| | - S-K Choi
- Gyeongsang National University, Jinju 52828
| | - S Choudhury
- Indian Institute of Technology Hyderabad, Telangana 502285
| | - D Cinabro
- Wayne State University, Detroit, Michigan 48202
| | - L Corona
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - L M Cremaldi
- University of Mississippi, University, Mississippi 38677
| | - S Cunliffe
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - T Czank
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - F Dattola
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - E De La Cruz-Burelo
- Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360
| | - G De Nardo
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - M De Nuccio
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - G De Pietro
- INFN Sezione di Roma Tre, I-00146 Roma
- Dipartimento di Matematica e Fisica, Università di Roma Tre, I-00146 Roma
| | - R de Sangro
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - M Destefanis
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - S Dey
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978
| | - A De Yta-Hernandez
- Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360
| | - F Di Capua
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - Z Doležal
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | | | - T V Dong
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - K Dort
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - D Dossett
- School of Physics, University of Melbourne, Victoria 3010
| | - S Dubey
- University of Hawaii, Honolulu, Hawaii 96822
| | - S Duell
- University of Bonn, 53115 Bonn
| | - G Dujany
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - S Eidelman
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | | | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - T Ferber
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - D Ferlewicz
- School of Physics, University of Melbourne, Victoria 3010
| | - G Finocchiaro
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - S Fiore
- INFN Sezione di Roma, I-00185 Roma
| | - A Fodor
- McGill University, Montréal, Québec, H3A 2T8
| | - F Forti
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - B G Fulsom
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - E Ganiev
- INFN Sezione di Trieste, I-34127 Trieste
- Dipartimento di Fisica, Università di Trieste, I-34127 Trieste
| | - M Garcia-Hernandez
- Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360
| | - R Garg
- Panjab University, Chandigarh 160014
| | - V Gaur
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - A Gaz
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - A Gellrich
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - J Gemmler
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - T Geßler
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - R Giordano
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - A Giri
- Indian Institute of Technology Hyderabad, Telangana 502285
| | - B Gobbo
- INFN Sezione di Trieste, I-34127 Trieste
| | - R Godang
- University of South Alabama, Mobile, Alabama 36688
| | - P Goldenzweig
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - B Golob
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Gomis
- Instituto de Fisica Corpuscular, Paterna 46980
| | - W Gradl
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | | | - D Greenwald
- Department of Physics, Technische Universität München, 85748 Garching
| | - Y Guan
- University of Cincinnati, Cincinnati, Ohio 45221
| | - C Hadjivasiliou
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - S Halder
- Tata Institute of Fundamental Research, Mumbai 400005
| | - T Hara
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - O Hartbrich
- University of Hawaii, Honolulu, Hawaii 96822
| | | | | | - C Hearty
- Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2
- University of British Columbia, Vancouver, British Columbia, V6T 1Z1
| | - M T Hedges
- University of Hawaii, Honolulu, Hawaii 96822
| | - I Heredia de la Cruz
- Centro de Investigacion y de Estudios Avanzados del Instituto Politecnico Nacional, Mexico City 07360
- Consejo Nacional de Ciencia y Tecnología, Mexico City 03940
| | | | - A Hershenhorn
- University of British Columbia, Vancouver, British Columbia, V6T 1Z1
| | - T Higuchi
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - E C Hill
- University of British Columbia, Vancouver, British Columbia, V6T 1Z1
| | - M Hoek
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - C-L Hsu
- School of Physics, University of Sydney, New South Wales 2006
| | - Y Hu
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - T Iijima
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - K Inami
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - G Inguglia
- Institute of High Energy Physics, Vienna 1050, Austria
| | - J Irakkathil Jabbar
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - A Ishikawa
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - R Itoh
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Iwasaki
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W W Jacobs
- Indiana University, Bloomington, Indiana 47408
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York 11973
| | - E-J Jang
- Gyeongsang National University, Jinju 52828
| | - H B Jeon
- Kyungpook National University, Daegu 41566
| | - S Jia
- Beihang University, Beijing 100191
| | - Y Jin
- INFN Sezione di Trieste, I-34127 Trieste
| | - C Joo
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - K K Joo
- Chonnam National University, Gwangju 61186
| | - J Kahn
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - H Kakuno
- Tokyo Metropolitan University, Tokyo 192-0397
| | - A B Kaliyar
- Tata Institute of Fundamental Research, Mumbai 400005
| | - J Kandra
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - G Karyan
- Alikhanyan National Science Laboratory, Yerevan 0036
| | - Y Kato
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - T Kawasaki
- Kitasato University, Sagamihara 252-0373
| | - B H Kim
- Seoul National University, Seoul 08826
| | - C-H Kim
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - D Y Kim
- Soongsil University, Seoul 06978
| | - K-H Kim
- Yonsei University, Seoul 03722
| | - S-H Kim
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - Y K Kim
- Yonsei University, Seoul 03722
| | - Y Kim
- Korea University, Seoul 02841
| | - T D Kimmel
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - H Kindo
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - C Kleinwort
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - P Kodyš
- Faculty of Mathematics and Physics, Charles University, 121 16 Prague
| | - T Koga
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Kohani
- University of Hawaii, Honolulu, Hawaii 96822
| | - I Komarov
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - S Korpar
- J. Stefan Institute, 1000 Ljubljana
- University of Maribor, 2000 Maribor
| | - N Kovalchuk
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | - P Križan
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - R Kroeger
- University of Mississippi, University, Mississippi 38677
| | - P Krokovny
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - T Kuhr
- Ludwig Maximilians University, 80539 Munich
| | - J Kumar
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
| | - M Kumar
- Malaviya National Institute of Technology Jaipur, Jaipur 302017
| | - R Kumar
- Punjab Agricultural University, Ludhiana 141004
| | - K Kumara
- Wayne State University, Detroit, Michigan 48202
| | - S Kurz
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - A Kuzmin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | | | | | - C La Licata
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - L Lanceri
- INFN Sezione di Trieste, I-34127 Trieste
| | - J S Lange
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | | | - I-S Lee
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - S C Lee
- Kyungpook National University, Daegu 41566
| | - P Leitl
- Max-Planck-Institut für Physik, 80805 München
| | - D Levit
- Department of Physics, Technische Universität München, 85748 Garching
| | - L K Li
- University of Cincinnati, Cincinnati, Ohio 45221
| | - Y B Li
- Peking University, Beijing 100871
| | - J Libby
- Indian Institute of Technology Madras, Chennai 600036
| | - K Lieret
- Ludwig Maximilians University, 80539 Munich
| | - L Li Gioi
- Max-Planck-Institut für Physik, 80805 München
| | - Z Liptak
- University of Hawaii, Honolulu, Hawaii 96822
| | - Q Y Liu
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - D Liventsev
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - S Longo
- University of Victoria, Victoria, British Columbia, V8W 3P6
| | - T Luo
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - Y Maeda
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - M Maggiora
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - E Manoni
- INFN Sezione di Perugia, I-06123 Perugia
| | - S Marcello
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - C Marinas
- Instituto de Fisica Corpuscular, Paterna 46980
| | - A Martini
- INFN Sezione di Roma Tre, I-00146 Roma
- Dipartimento di Matematica e Fisica, Università di Roma Tre, I-00146 Roma
| | - M Masuda
- Earthquake Research Institute, University of Tokyo, Tokyo 113-0032
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047
| | - T Matsuda
- University of Miyazaki, Miyazaki 889-2192
| | - K Matsuoka
- Graduate School of Science, Nagoya University, Nagoya 464-8602
- Kobayashi-Maskawa Institute, Nagoya University, Nagoya 464-8602
| | - D Matvienko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Novosibirsk State University, Novosibirsk 630090
| | | | - J C Mei
- Key Laboratory of Nuclear Physics and Ion-beam Application (MOE) and Institute of Modern Physics, Fudan University, Shanghai 200443
| | - F Meier
- Duke University, Durham, North Carolina 27708
| | - M Merola
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - F Metzner
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - M Milesi
- School of Physics, University of Melbourne, Victoria 3010
| | - C Miller
- University of Victoria, Victoria, British Columbia, V8W 3P6
| | | | - H Miyake
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - R Mizuk
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - K Azmi
- National Centre for Particle Physics, University Malaya, 50603 Kuala Lumpur
| | - G B Mohanty
- Tata Institute of Fundamental Research, Mumbai 400005
| | - T Moon
- Seoul National University, Seoul 08826
| | - T Morii
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583
| | - H-G Moser
- Max-Planck-Institut für Physik, 80805 München
| | - F Mueller
- Max-Planck-Institut für Physik, 80805 München
| | - F J Müller
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Th Muller
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - G Muroyama
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - R Mussa
- INFN Sezione di Torino, I-10125 Torino
| | - E Nakano
- Osaka City University, Osaka 558-8585
| | - M Nakao
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Nayak
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978
| | - G Nazaryan
- Alikhanyan National Science Laboratory, Yerevan 0036
| | - D Neverov
- Graduate School of Science, Nagoya University, Nagoya 464-8602
| | - C Niebuhr
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - N K Nisar
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - S Nishida
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Nishimura
- University of Hawaii, Honolulu, Hawaii 96822
| | - M Nishimura
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - B Oberhof
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - K Ogawa
- Niigata University, Niigata 950-2181
| | - Y Onishchuk
- Taras Shevchenko National Univ. of Kiev, Kiev
| | - H Ono
- Niigata University, Niigata 950-2181
| | - Y Onuki
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - P Oskin
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - H Ozaki
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Pakhlov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Physical Engineering Institute, Moscow 115409
| | - G Pakhlova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - A Paladino
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - A Panta
- University of Mississippi, University, Mississippi 38677
| | - E Paoloni
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - H Park
- Kyungpook National University, Daegu 41566
| | | | - A Passeri
- INFN Sezione di Roma Tre, I-00146 Roma
| | - A Pathak
- University of Louisville, Louisville, Kentucky 40292
| | - S Paul
- Department of Physics, Technische Universität München, 85748 Garching
| | | | - I Peruzzi
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - R Peschke
- University of Hawaii, Honolulu, Hawaii 96822
| | | | - M Piccolo
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati
| | - L E Piilonen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - V Popov
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
- Moscow Institute of Physics and Technology, Moscow Region 141700
| | - C Praz
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | - M T Prim
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - M V Purohit
- Okinawa Institute of Science and Technology, Okinawa 904-0495
| | - P Rados
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - R Rasheed
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - S Reiter
- Justus-Liebig-Universität Gießen, 35392 Gießen
| | - M Remnev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - P K Resmi
- Indian Institute of Technology Madras, Chennai 600036
| | - I Ripp-Baudot
- Université de Strasbourg, CNRS, IPHC, UMR 7178, 67037 Strasbourg
| | - M Ritter
- Ludwig Maximilians University, 80539 Munich
| | - G Rizzo
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | | | - S H Robertson
- Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2
- McGill University, Montréal, Québec, H3A 2T8
| | | | - J M Roney
- Institute of Particle Physics (Canada), Victoria, British Columbia V8W 2Y2
- University of Victoria, Victoria, British Columbia, V8W 3P6
| | - C Rosenfeld
- University of South Carolina, Columbia, South Carolina 29208
| | - A Rostomyan
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - N Rout
- Indian Institute of Technology Madras, Chennai 600036
| | - G Russo
- INFN Sezione di Napoli, I-80126 Napoli
- Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli
| | - D Sahoo
- Tata Institute of Fundamental Research, Mumbai 400005
| | - Y Sakai
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - S Sandilya
- University of Cincinnati, Cincinnati, Ohio 45221
| | - A Sangal
- University of Cincinnati, Cincinnati, Ohio 45221
| | - L Santelj
- J. Stefan Institute, 1000 Ljubljana
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana
| | - P Sartori
- INFN Sezione di Padova, I-35131 Padova
- Dipartimento di Fisica e Astronomia, Università di Padova, I-35131 Padova
| | - Y Sato
- Department of Physics, Tohoku University, Sendai 980-8578
| | - V Savinov
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - B Scavino
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - J Schueler
- University of Hawaii, Honolulu, Hawaii 96822
| | - C Schwanda
- Institute of High Energy Physics, Vienna 1050, Austria
| | - R M Seddon
- McGill University, Montréal, Québec, H3A 2T8
| | - Y Seino
- Niigata University, Niigata 950-2181
| | - A Selce
- INFN Sezione di Perugia, I-06123 Perugia
| | - K Senyo
- Yamagata University, Yamagata 990-8560
| | - C Sfienti
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - C P Shen
- Beihang University, Beijing 100191
| | - J-G Shiu
- Department of Physics, National Taiwan University, Taipei 10617
| | - B Shwartz
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - A Sibidanov
- University of Victoria, Victoria, British Columbia, V8W 3P6
| | - F Simon
- Max-Planck-Institut für Physik, 80805 München
| | - R J Sobie
- University of Victoria, Victoria, British Columbia, V8W 3P6
| | - A Soffer
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv, 69978
| | - A Sokolov
- Institute for High Energy Physics, Protvino 142281
| | - E Solovieva
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
| | - S Spataro
- INFN Sezione di Torino, I-10125 Torino
- Dipartimento di Fisica, Università di Torino, I-10125 Torino
| | - B Spruck
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz
| | - M Starič
- J. Stefan Institute, 1000 Ljubljana
| | - S Stefkova
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - Z S Stottler
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - R Stroili
- INFN Sezione di Padova, I-35131 Padova
- Dipartimento di Fisica e Astronomia, Università di Padova, I-35131 Padova
| | - J Strube
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - M Sumihama
- Gifu University, Gifu 501-1193
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047
| | - T Sumiyoshi
- Tokyo Metropolitan University, Tokyo 192-0397
| | - D J Summers
- University of Mississippi, University, Mississippi 38677
| | - S Y Suzuki
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Tabata
- Chiba University, Chiba 263-8522
| | - M Takizawa
- J-PARC Branch, KEK Theory Center, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Theoretical Research Division, Nishina Center, RIKEN, Saitama 351-0198
- Showa Pharmaceutical University, Tokyo 194-8543
| | - U Tamponi
- INFN Sezione di Torino, I-10125 Torino
| | - S Tanaka
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Naka 319-1195
| | - N Taniguchi
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - P Taras
- Université de Montréal, Physique des Particules, Montréal, Québec, H3C 3J7
| | - F Tenchini
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - E Torassa
- INFN Sezione di Padova, I-35131 Padova
| | - K Trabelsi
- Laboratoire de l'Accélérateur Linéaire, IN2P3/CNRS et Université Paris-Sud 11, Centre Scientifique d'Orsay, F-91898 Orsay Cedex
| | - T Tsuboyama
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - M Uchida
- Tokyo Institute of Technology, Tokyo 152-8550
| | - K Unger
- Institut für Experimentelle Teilchenphysik, Karlsruher Institut für Technologie, 76131 Karlsruhe
| | - Y Unno
- Department of Physics and Institute of Natural Sciences, Hanyang University, Seoul 04763
| | - S Uno
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - Y Ushiroda
- The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
- Department of Physics, University of Tokyo, Tokyo 113-0033
| | - S E Vahsen
- University of Hawaii, Honolulu, Hawaii 96822
| | | | - G S Varner
- University of Hawaii, Honolulu, Hawaii 96822
| | - K E Varvell
- School of Physics, University of Sydney, New South Wales 2006
| | - A Vinokurova
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - L Vitale
- INFN Sezione di Trieste, I-34127 Trieste
- Dipartimento di Fisica, Università di Trieste, I-34127 Trieste
| | - A Vossen
- Duke University, Durham, North Carolina 27708
| | - M Wakai
- University of British Columbia, Vancouver, British Columbia, V6T 1Z1
| | | | - W Wan Abdullah
- National Centre for Particle Physics, University Malaya, 50603 Kuala Lumpur
| | - C H Wang
- National United University, Miao Li 36003
| | - M-Z Wang
- Department of Physics, National Taiwan University, Taipei 10617
| | - A Warburton
- McGill University, Montréal, Québec, H3A 2T8
| | | | - J Webb
- School of Physics, University of Melbourne, Victoria 3010
| | - S Wehle
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | | | | | - H Windel
- Max-Planck-Institut für Physik, 80805 München
| | - E Won
- Korea University, Seoul 02841
| | - B Yabsley
- School of Physics, University of Sydney, New South Wales 2006
| | - S Yamada
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - W Yan
- University of Science and Technology of China, Hefei 230026
| | | | - H Ye
- Deutsches Elektronen-Synchrotron, 22607 Hamburg
| | - J H Yin
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - M Yonenaga
- Tokyo Metropolitan University, Tokyo 192-0397
| | - C Z Yuan
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049
| | - Y Yusa
- Niigata University, Niigata 950-2181
| | - L Zani
- INFN Sezione di Pisa, I-56127 Pisa
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa
| | - Z Zhang
- University of Science and Technology of China, Hefei 230026
| | - V Zhilich
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090
- Novosibirsk State University, Novosibirsk 630090
| | - Q D Zhou
- High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801
| | - X Y Zhou
- Beihang University, Beijing 100191
| | - V I Zhukova
- P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow 119991
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Ueno O, Wada Y, Wakai M, Bang SW. Evidence from photosynthetic characteristics for the hybrid origin of Diplotaxis muralis from a C3-C4 intermediate and a C3 species. Plant Biol (Stuttg) 2006; 8:253-9. [PMID: 16547870 DOI: 10.1055/s-2005-873050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Artificial hybridization studies have been carried out between plants with different photosynthetic types to study the genetic mechanism of photosynthetic types. However, there are only few reports describing the possibility of natural hybridization between plants with different photosynthetic types. A previous cytological and morphological study suggested that a cruciferous allotetraploid species, Diplotaxis muralis (L.) DC. (2n = 42), originated from natural hybridization between D. tenuifolia (L.) DC. (2n = 22) and D. viminea (L.) DC. (2n = 20). These putative parents have recently been reported to be a C (3)-C (4) intermediate and a C (3) species, respectively. If this hybridization occurred, D. muralis should have characteristics intermediate between those of the C (3)-C (4) intermediate and C (3) types. We compared leaf structures and photosynthetic characteristics of the three species. The bundle sheath (BS) cells in D. tenuifolia included many centripetally located chloroplasts and mitochondria, but those of D. viminea had only a few organelles. The BS cells in D. muralis displayed intermediate features between the putative parents. Glycine decarboxylase P protein was confined to the BS mitochondria in D. tenuifolia, but accumulated mainly in the mesophyll mitochondria in D. viminea. In D. muralis, it accumulated in both the BS and the mesophyll mitochondria. Values of CO (2) compensation point and its response to changing light intensity were also intermediate between the putative parents. These data support the theory that D. muralis was created by natural hybridization between species with different photosynthetic types.
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Affiliation(s)
- O Ueno
- Plant Physiology Department, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan.
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8
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Wakai M, Hayashi M, Honda K, Nishikage H, Goshima K, Yamamoto J. [Acute onset of tuberculous meningoencephalitis presenting with symmetric linear lesions in the bilateral thalamus: a case report]. Rinsho Shinkeigaku 2001; 41:519-22. [PMID: 11889839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A 18-year-old woman was admitted to our hospital because of high fever and headache. Nuchal stiffness was present, and a CSF examination showed lymphocyte-domonant pleocytosis and a decreased level of glucose. Although antibiotics, aciclovir and an antimycotic drug were administered, disturbance of consciousness, involuntary movements, and pyramidal tract signs appeared. Soon after the medications were changed to antituberculous medicines, the meningoencephalitis started to subside, and was finally cured. Judging from the clinical findings, the CSF findings, the effectiveness of antituberculous medicines, an elevated ADA level in CSF, and positive conversion in tuberculin tests, the final diagnosis was made as tuberculous meningoencephalitis. At the severest stage of the disease, a brain MRI showed symmetric, linear lesions without the effect of Gd-enhancement in the bilateral thalamus, which thereafter disappeared along with the healing of the illness. From all these things, we conclude that thalamic and other parenchymal lesions should be kept in mind in case of acute tuberculous meningoencephalitis.
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Affiliation(s)
- M Wakai
- Department of Internal Medicine, Kakegawa City General Hospital
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9
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Takeda A, Wakai M, Niwa H, Dei R, Yamamoto M, Li M, Goto Y, Yasuda T, Nakagomi Y, Watanabe M, Inagaki T, Yasuda Y, Miyata T, Sobue G. Neuronal and glial advanced glycation end product [Nepsilon-(carboxymethyl)lysine]] in Alzheimer's disease brains. Acta Neuropathol 2001; 101:27-35. [PMID: 11194938 DOI: 10.1007/s004010000256] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The cellular distribution of an advanced glycation end product [Nepsilon-(carboxymethyl)lysine (CML)] in aged and Alzheimer's disease (AD) brains was assessed immunohistochemically. CML was localized in the cytoplasm of neurons, astrocytes, and microglia in both aged and AD brains. Glial deposition was far more marked in AD brains than in aged brains, and neuronal deposition was also increased. On electron microscopic immunohistochemistry, neuronal CML formed granular or linear deposits associated with lipofuscin, and glial deposits formed lines around the vacuoles. Neuronal and glial deposits were prominent throughout the cerebral cortex and hippocampus, but were sparse in the putamen, globus pallidus, substantia nigra, and cerebellum, with glial deposits being far more prominent in AD brains. The distribution of neuronal and glial deposits did not correspond with the distribution of AD pathology. The extent of CML deposits was inversely correlated with neurofibrillary tangle formation, particularly in the hippocampus. Most hippocampal pyramidal neurons with neurofibrillary tangles did not have CML, and most of the neurons with heavy CML deposits did not have neurofibrillary tangles. In the hippocampus, neuronal CML was prominent in the region where neuronal loss was mild. These observations suggest that CML deposition does not directly cause neurofibrillary tangle formation or neuronal loss in AD.
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Affiliation(s)
- A Takeda
- Department of Neurology, Nagoya University School of Medicine, Showa, Japan
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10
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Mizuno K, Wakai M, Takeda A, Sobue G. Medial temporal atrophy and memory impairment in early stage of Alzheimer's disease: an MRI volumetric and memory assessment study. J Neurol Sci 2000; 173:18-24. [PMID: 10675575 DOI: 10.1016/s0022-510x(99)00289-0] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Memory impairment and medial temporal lobe (MTL) involvement are the earliest and most prominent features of Alzheimer's disease (AD). A psychological assessment of memory function and an evaluation of the morphological changes in MTL structures, as found in the mild form of AD, are important for early diagnosis as well as for understanding the pathophysiology of the disease. In the present study, we aimed to evaluate correlations in these psychoanatomical changes in terms of the stage of AD. We performed MRI-based volumetric measurements of the MTL structure and neuropsychological tests, using MMSE and the Wechsler memory scale-revised (WMS-R), on 27 elderly normal subjects and 46 probable AD patients, and then checked for possible correlations between the volumetric measurements and memory dysfunction. The severity of the AD patients' condition was assessed by CDR scale. Each MTL structure decreased in volume with increasing severity of AD. In very early AD, the reduction in the amygdala volume was pronounced, while the hippocampal volumes were relatively unchanged. Neuropsychological scores also declined with increasing severity of AD. Scores on the main WMS-R subsets examined (verbal memory, visual memory, and delayed recall) decreased significantly in the very mild group, as compared with normal controls. The WMS-R test scores correlated significantly with the amygdala volumes in normal control subjects and very mild AD patients. Our findings suggest that MRI-based amygdaloid volumetric measurement provides a sensitive marker, and that the degeneration of the amygdala may begin very early in the course of AD.
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Affiliation(s)
- K Mizuno
- Department of Neurology, Nagoya University School of Medicine, 65 Tsurumai-Cho Showa-ku, Nagoya, Japan
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11
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Niwa H, Takeda A, Wakai M, Miyata T, Yasuda Y, Mitsuma T, Kurokawa K, Sobue G. Accelerated formation of N epsilon-(carboxymethyl) lysine, an advanced glycation end product, by glyoxal and 3-deoxyglucosone in cultured rat sensory neurons. Biochem Biophys Res Commun 1998; 248:93-7. [PMID: 9675092 DOI: 10.1006/bbrc.1998.8899] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The formation of advanced glycation end products (AGEs) is associated with pathophysiological changes with aging and disease processes. In the neurodegeneration in Alzheimer's disease and other neurodegenerative diseases. AGEs are speculated to play a role in their pathogenesis. We provide the first evidence for the induction of AGEs in cultured neuronal cells. Glyoxal and 3-deoxyglucosone (3-DG), AGE precursors, induced N epsilon-(carboxymethyl) lysine (CML), a well characterized and major AGE structure, in cultured rat sensory neurons in a time- and dose-dependent manner. CML formation was prevented by addition of aminoguanidine, an inhibitor of AGE formation. This culture system provides a useful model to analyze the role of the glycoxidation reaction in neuronal aging and neurodegenerative disorder.
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Affiliation(s)
- H Niwa
- Department of Neurology, Nagoya University School of Medicine, Japan
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12
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Takeda A, Yasuda T, Miyata T, Goto Y, Wakai M, Watanabe M, Yasuda Y, Horie K, Inagaki T, Doyu M, Maeda K, Sobue G. Advanced glycation end products co-localized with astrocytes and microglial cells in Alzheimer's disease brain. Acta Neuropathol 1998; 95:555-8. [PMID: 9650745 DOI: 10.1007/s004010050839] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In the previous study [Takeda et al. (1996) Neurosci Lett 221: 17-21], we reported that the advanced glycation end products (AGEs) in the external space of neuronal perikarya (extraneuroperikaryal AGE deposits) were significantly abundant in the Alzheimer's brain. In this study, we investigated the spatial relationship of the extraneuroperikaryal AGE (carboxymethyllysine and pentosidine) deposits in astrocytes and microglial cells in the Alzheimer's disease brain using double immunolabelling for AGEs and astrocyte or microglial cell markers. Most of the extraneuroperikaryal AGE deposits were co-localized with glial fibrillary acidic protein-positive astrocytes. AGE deposit-bearing astrocytes also contained Gomori-positive granules. Furthermore, some of the extraneuroperikaryal AGE deposits were co-localized with microglial cells. These extraneuroperikaryal AGEs may activate astrocyte and microglia, and play a role in pathogenesis of Alzheimer's disease.
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Affiliation(s)
- A Takeda
- Department of Neurology, Nagoya University School of Medicine, Showa, Japan
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13
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Levey AI, Heilman CJ, Lah JJ, Nash NR, Rees HD, Wakai M, Mirra SS, Rye DB, Nochlin D, Bird TD, Mufson EJ. Presenilin-1 protein expression in familial and sporadic Alzheimer's disease. Ann Neurol 1997; 41:742-53. [PMID: 9189035 DOI: 10.1002/ana.410410610] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Mutations of the presenilin PS1 and PS2 genes are closely linked to aggressive forms of early-onset (< 60 years) familial Alzheimer's disease. A highly specific monoclonal antibody was developed to identify and characterize the native PS1 protein. Western blot analyses revealed a predominant 32-kd immunoreactive polypeptide in a variety of samples, including PC12 cells transfected with human PS1 complementary DNA, brain biopsy specimens from demented patients, and postmortem samples of frontal neocortex from early-onset familial Alzheimer's disease cases (PS1 and PS2), late-onset sporadic Alzheimer's disease cases, and cases of other degenerative disorders. This truncated polypeptide contains the N-terminus of PS1 and appeared unchanged across cases. In 2 early-onset cases linked to missense mutations in the PS1 gene, a PS1 immunoreactive protein (approximately 49 kd) accumulated in the frontal cortex. This protein was similar in size to full-length PS1 protein present in transfected cells overexpressing PS1 complementary DNA, and in lymphocytes from an affected individual with a deletion of exon 9 of the PS1 gene, suggesting that mutations of the PS1 gene peturb the endoproteolytic processing of the protein. Immunohistochemical studies of control brains revealed that PS1 is expressed primarily in neurons, with the protein localized in the soma and dendritic processes. In contrast, PS1 showed striking localization to the neuropathology in early-onset familial Alzheimer's disease and sporadic Alzheimers' disease cases. PS1 immunoreactivity was present in the neuritic component of senile plaques as well as in neurofibrillary tangles. Localization of PS1 immunoreactivity in familial and sporadic Alzheimer's disease suggests that genetically heterogeneous forms of the disease share a common pathophysiology involving PS1 protein.
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Affiliation(s)
- A I Levey
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA
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14
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Hirose Y, Mokuno K, Wakai M, Takahashi A, Hashizume Y, Yanagi T, Kato K. Elevated cerebrospinal fluid levels of manganese superoxide dismutase in bacterial meningitis. J Neurol Sci 1995; 131:51-7. [PMID: 7561947 DOI: 10.1016/0022-510x(95)00040-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We examined the mechanism of increase of manganese superoxide dismutase (Mn SOD) in the cerebrospinal fluid (CSF) in bacterial meningitis (BM). The elevated levels of Mn SOD in the CSF in BM, measured with an enzyme immunoassay method, were more prominent than those in aseptic meningitis (AM) and encephalitis (EN). In AM and EN Mn SOD levels well correlated with levels of neuron-specific enolase and S-100b protein, which are markers of damages to nervous tissues, but did not with any of them in BM. CSF concentrations of tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 alpha (IL-1 alpha) were higher in BM than in AM and EN. From the serial measurements in BM, the peak values of these cytokines chronologically preceded or corresponded to those of Mn SOD. Immunohistochemically, a large number of the glial cells were stained for Mn SOD in the cerebral cortex from a patient with BM. By contrast, in the normal cerebral cortex, the glial cells were negative for Mn SOD staining. These results suggest that the marked increase of Mn SOD in the CSF in BM may be related to the increase of such cytokines as TNF-alpha and IL-1 alpha and that these cytokines may play a role in the induction of Mn SOD in nervous tissues.
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Affiliation(s)
- Y Hirose
- Department of Neurology, Nagoya University School of Medicine, Japan
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15
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Hashimoto S, Dono M, Wakai M, Allen SL, Lichtman SM, Schulman P, Vinciguerra VP, Ferrarini M, Silver J, Chiorazzi N. Somatic diversification and selection of immunoglobulin heavy and light chain variable region genes in IgG+ CD5+ chronic lymphocytic leukemia B cells. J Exp Med 1995; 181:1507-17. [PMID: 7535340 PMCID: PMC2191964 DOI: 10.1084/jem.181.4.1507] [Citation(s) in RCA: 110] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is characterized by the clonal expansion of CD5-expressing B lymphocytes. Most studies have found that these leukemic CD5+ B cells, like their normal counterparts, use immunoglobulin (Ig) variable (V) region genes that exhibit minimal, if any, somatic diversity. These and other observations have suggested that CD5+ B cells may be incapable of generating Ig V gene diversity, and therefore may not be able to develop higher affinity binding sites that could be selected by antigen. However, most of the studies of CLL and normal CD5+ B cells have focused on IgM-producing cells. Since somatic mutations are most often seen in B cells that have undergone an isotype class switch, we analyzed the Ig heavy (H) and light (L) chain variable region genes of seven IgG+CD5+ CLL B cells to determine if somatic diversification and antigen selection had occurred. The data derived provide evidence for skewed use, somatic diversification, and antigenic selection of the Ig V region genes. Nonrandom use of both H and L chain V region genes was manifested by an overrepresentation of VH4 and VKI family genes and the underrepresentation of the JH4 gene segment. Furthermore, VH4 gene use was restricted to only two family members (4.21 and 4.18). In four of the seven cases, the VH and VL genes displayed > or = 5% difference from the most homologous known germline counterparts. Polymerase chain reaction and Southern blot analyses performed in two of these patients demonstrated that their unique VH CDR2 and adjacent sequences were not present in their germline DNA. In addition, a significant level of diversity was seen in the rearranged DJH segments and at the VL-JL junctions of every patient that occurred both at the time of recombination and subsequently. The localization of replacement changes to complementarity determining regions of some patients suggested that antigen selection had occurred. Furthermore, the mutations identified in the VH and VL genes of each individual patient were strikingly similar, both in number and location. Collectively, the data indicate that a subset of CD5+ CLL B cells can display Ig V region gene mutations. In addition, they are consistent with the notions that in some cases antigen selection of these mutations may have occurred, and that antigen stimulation may be a promoting factor in the evolution of certain CLL clones.
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MESH Headings
- Amino Acid Sequence
- Antibodies, Neoplasm/genetics
- Antigens, CD/analysis
- B-Lymphocytes/immunology
- Base Sequence
- CD5 Antigens
- Clone Cells
- Follow-Up Studies
- Gene Rearrangement, B-Lymphocyte, Heavy Chain
- Gene Rearrangement, B-Lymphocyte, Light Chain
- Genes, Immunoglobulin
- Humans
- Immunoglobulin G/genetics
- Immunoglobulin Heavy Chains/genetics
- Immunoglobulin Light Chains/genetics
- Immunoglobulin Variable Region/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/etiology
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Molecular Sequence Data
- Point Mutation
- Receptors, Antigen, B-Cell/genetics
- Sequence Alignment
- Sequence Homology
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Affiliation(s)
- S Hashimoto
- Department of Medicine, North Shore University Hospital, Manhasset, New York 11030, USA
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16
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Abstract
We investigated clinical and MRI correlation in 18 patients with clinically-diagnosed multiple system atrophy (MSA) and 16 age-matched controls, using 1.5 T magnetic resonance imaging (MRI). We evaluated the severity of parkinsonism in each MSA patient. In assessing the MRI findings, we examined three parameters quantitatively: width of the pars compacta of the substantia nigra (SNc); putaminal hypointensity on T2-weighted images; and putaminal atrophy. As in previous studies, SNc width was narrowed and the putaminal signal intensity was decreased in patients with MSA compared with controls. The clinical severity of parkinsonism did not correlate significantly with the SNc width or the score of putaminal hypointensity in MSA. However, not only did putaminal atrophy occur, but correlated well with the severity of parkinsonism in MSA. A significant correlation could not be established between narrowing of SNc and shrinkage of the putamen. These findings suggest that putaminal atrophy is associated with the clinical manifestations of parkinsonism and do not support the hypothesis that transsynaptic degeneration occurs in MSA.
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Affiliation(s)
- M Wakai
- Department of Neurology, Nagoya University School of Medicine, Japan
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17
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Wakai M, Mokuno K, Hashizume Y, Kato K. An immunohistochemical study of the neuronal expression of manganese superoxide dismutase in sporadic amyotrophic lateral sclerosis. Acta Neuropathol 1994; 88:151-8. [PMID: 7985495 DOI: 10.1007/bf00294508] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Neuronal expression of manganese superoxide dismutase (MnSOD) in sporadic amyotrophic lateral sclerosis (sALS) was investigated by an immunohistochemical method. The brains and spinal cords from 11 patients with sALS and 20 normal controls (NCs) were used, and the following four nuclei (three motor nuclei and one autonomic nucleus) were examined: the oculomotor nucleus; the hypoglossal nucleus; the cervical motor nucleus; and Onuf's nucleus. Serial sections were stained by the Klüver-Barrera (KB) method and with human-MnSOD-specific antibodies. We counted the total number of neurons visible after KB staining and the total number of positive neurons after immunostaining. The average total number of neurons after KB staining was similar in sALS patients and NCs in both the oculomotor nucleus and Onuf's nucleus, but the number in the hypoglossal and cervical motor nuclei was significantly lower in sALS. The ratio of MnSOD-positive neurons to total neurons visible after KB staining, calculated as an index of the expression of MnSOD, was significantly higher in the oculomotor nucleus and Onuf's nucleus, and lower in the hypoglossal nucleus in sALS patients than in NCs. In the cervical motor nucleus, the ratio in sALS patients did not differ from that in NCs. These results suggest that production of toxic superoxide radicals might be increased in sALS, and that neurons that successfully induce the expression of sufficient MnSOD can survive the disease process, while those failing to activate adequate expression of the enzyme succumb to the toxic effects of the radicals and die.
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Affiliation(s)
- M Wakai
- Department of Neurology, Nagoya University School of Medicine, Japan
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18
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Abstract
We present a patient with posterior cortical atrophy in whom positron emission tomography (PET) showed unusual findings. This 65-year-old man had a 5-year history of slowly progressive apperceptive visual agnosia and Balint syndrome, but with a relatively well-preserved intelligence and language ability even in the later stages of illness. No relevant features in this patient or his family were identified. Laboratory and radiographic investigations indicated that cerebral damage was due to primary degeneration. His symptoms resembled those of patients with posterior cortical atrophy. A PET study revealed that cerebral metabolism was reduced in the dorsal regions of the entire cortex and asymmetrical with the main site of damage on the right. The severity in asymmetry increased dorsally. These 2 types of predilection for dorsal regions had not previously been reported in such patients. These unusual PET findings may indicate the presence of pathological changes not yet identified.
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Affiliation(s)
- M Wakai
- Department of Neurology, Nagoya University School of Medicine, Japan
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19
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Wakai M, Hashimoto S, Omata M, Sthoeger ZM, Allen SL, Lichtman SM, Schulman P, Vinciguerra VP, Diamond B, Dono M. IgG+, CD5+ human chronic lymphocytic leukemia B cells. Production of IgG antibodies that exhibit diminished autoreactivity and IgG subclass skewing. Autoimmunity 1994; 19:39-48. [PMID: 7538331 DOI: 10.3109/08916939409008007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Several questions exist regarding CD5+ B cells. These include the ability of these cells, as compared to CD5- B cells, to undergo an Ig isotype class switch, the subclasses utilized, and the effects that switching may have on antigen binding. To address these issues, ten patients with chronic lymphocytic leukemia (CLL) whose CD5+ leukemic B cell clones produced IgG were studied. Monoclonal IgG was collected from PMA-stimulated CLL cells and from heterohybridomas constructed with these cells, and then analyzed for IgG subclass utilization, autoreactivity, and DNA idiotype expression. The monoclonal B cells from 80% of the CLL patients produced IgG1 and those from 20% produced IgG3. None produced IgG2. In contrast to the known autoreactivity of IgM-producing CD5+ CLL cells (> 50% autoreactive), none of these IgG antibodies reacted significantly with the autoantigens tested. However, three did react significantly with autoantigen after artificially increasing antibody valency by crosslinking. Whereas five of the IgG molecules expressed a cross reactive idiotypic (CRI) marker characteristic of non-mutated kappa anti-DNA antibodies, three expressed a CRI displayed primarily on mutated IgG anti-DNA antibodies. Thus, some CD5+ human B cells can undergo an isotype class switch that for these CLL cells is biased against IgG2 and in favor of the IgG1 and IgG3. In their native state the IgG molecules secreted by these isotype-switched CD5+ cells have diminished autoreactivity, as compared to IgM-producing CLL cells. Since some of the IgG antibodies could be made auto- and poly-reactive by increasing antigen-binding valency, while others expressed idiotypic markers of mutated antibodies, certain of these CD5+ B cells probably utilize non-mutated Ig V genes coding for polyreactive antibodies, whereas others may use genes that have undergone somatic mutation and that code for more restricted specificities. Therefore, both valency and VH gene mutation may account for the diminished autoreactivity of these CD5+ B cell-derived IgG antibodies.
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MESH Headings
- Adult
- Aged
- Animals
- Antibodies, Antinuclear/immunology
- Antibodies, Neoplasm/biosynthesis
- Antibodies, Neoplasm/classification
- Antibodies, Neoplasm/genetics
- Antibody Affinity
- Antibody Specificity
- Antigens, CD/analysis
- Autoimmunity
- B-Lymphocytes/chemistry
- B-Lymphocytes/immunology
- B-Lymphocytes/pathology
- Base Sequence
- CD5 Antigens
- Female
- Gene Expression Regulation, Neoplastic
- Gene Rearrangement, B-Lymphocyte
- Genes, Immunoglobulin
- Humans
- Hybridomas/immunology
- Immunoglobulin Class Switching
- Immunoglobulin G/biosynthesis
- Immunoglobulin G/classification
- Immunoglobulin G/genetics
- Immunoglobulin Idiotypes/immunology
- Immunoglobulin M/genetics
- Immunoglobulin M/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Male
- Mice
- Middle Aged
- Molecular Sequence Data
- Neoplastic Stem Cells/chemistry
- Neoplastic Stem Cells/immunology
- Neoplastic Stem Cells/pathology
- Receptors, Antigen, B-Cell/biosynthesis
- Receptors, Antigen, B-Cell/classification
- Receptors, Antigen, B-Cell/genetics
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Affiliation(s)
- M Wakai
- Department of Medicine North Shore University Hospital, Manhasset, New York 11030, USA
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20
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Abstract
Pathological change of the globus pallidus (GP) in 6 cases of Huntington's disease (HD) was examined histometrically by comparison with 10 normal control cases. All but 1 case of HD were in late stages of the disease. Total neuronal count, area of GP, and neuronal cell density were measured in 5 selected regions of coronal sections taken along the antero-posterior axis. Contrary to the findings of previous reports, no neuronal depletion was recognized in HD in any region despite marked atrophy of tissue bulk. The atrophy was more severe in the external segment (GPe) than in the internal segment (GPi). Reactive astrocytosis and fibrillary gliosis were observed in the atrophic lesions. These results indicate that atrophy of the GP can be attributed to striato-pallidal fiber loss and not to neuronal depletion even in the late stages. These findings support the hypothesis that loss of striato-GPe fibers plays the most important role in choreic movements in HD. It remains to be determined whether the pallidal neurons are also preserved in the end stage of the disease.
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Affiliation(s)
- M Wakai
- Department of Neurology, Nagoya University School of Medicine, Japan
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21
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Wakai M, Pasley P, Sthoeger ZM, Posnett DN, Brooks R, Hashimoto S, Chiorazzi N. Anti-CD23 monoclonal antibodies: comparisons of epitope specificities and modulating capacities for IgE binding and production. Hybridoma (Larchmt) 1993; 12:25-43. [PMID: 7681036 DOI: 10.1089/hyb.1993.12.25] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A large battery of anti-CD23 mAb were compared for their epitope specificities and for their abilities to alter both IgE binding to cell-associated CD23 and IgE production in vitro in response to three sets of stimulants. The nine mAb tested can be divided into four families which define four antigenic epitopes (A-D) of CD23. Of these four families, two bind antigenic sites, (A and D) that appear to lie outside the IgE ligand binding site and two bind sites (B and C) that appear to be located within or close to this site, as determined by the abilities of appropriate mAb to alter IgE binding to CD23. The effects that these mAb had on IgE secretion by normal peripheral blood mononuclear cells (PBMNC) varied depending on the stimulant employed to induce IgE production. Interactions with epitope A, which was found to lie outside the ligand binding site and to be made more accessible by binding of mAb to other epitopes, had different effects on IgE production than interactions with the other epitopes. Indeed, mAb binding to this epitope lead to as much as a 10 fold enhancement in IgE biosynthesis induced by IL-4 alone or by IL-4 + hydrocortisone whereas interactions at the other sites resulted in almost complete inhibition of IgE production. In addition, mAb reactive with epitopes B and C had minimal effects on IgE production induced by IL-4 + anti-CD40 mAb whereas interactions at epitope A consistently enhanced IgE production. Finally, no apparent direct correlation was found between the ability of individual anti-CD23 mAb to alter IgE binding to cell-associated CD23 and their ability to modulate IgE production by PBMNC. These studies suggest that IgE binding to cell-associated CD23 does not have a major role in the de novo synthesis of IgE that involves CD23 interactions. In addition, the different effects that binding to epitope A vs B or C have on IgE synthesis suggest that molecular interactions between distinct portions of the CD23 molecule and other cell surface molecules expressed on the same B cell or adjacent communicating cells may lead to divergent cellular effects on IgE production. Finally these studies imply that only epitope A is involved in the generation of an IgE response through the CD40 pathway.
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Affiliation(s)
- M Wakai
- Department of Medicine, North Shore University Hospital, Manhasset, NY 11030
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Kaplan S, Hyman K, Brooks R, Wakai M, Hashimoto S, Furie R, Chiorazzi N. Monoclonal IgM, IgG, and IgA human rheumatoid factors produced by synovial tissue-derived, EBV-transformed B cell lines. Clin Immunol Immunopathol 1993; 66:18-25. [PMID: 8382569 DOI: 10.1006/clin.1993.1003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In an effort to study disease-related autoantibodies in rheumatoid arthritis (RA), rheumatoid factor (RF)-producing B cell lines were developed from the heterogeneous B cell populations infiltrating the synovial tissue of patients with arthritis. Over 125 EBV-transformed B cell cultures were derived from three patients: one with early pre-erosive RA, one with advanced RA, and one with osteoarthritis (OA). IgM, IgG, and IgA RF-producing B cell lines were found in all three series but with several significant differences. In each of the two RA patients, 22% of the Ig-producing cell lines secreted RF compared to 7% in the OA patient. The isotypes of these RF were mostly IgM in the early RA (62%) and the OA patient (60%) as contrasted to predominantly IgA (75%) and, to a lesser extent, IgG (12.5%) in the advanced RA patient. Analyses of the light (L) chain composition of these RF revealed that 82% of the IgM RF used kappa L chains whereas only 31% of the non-IgM RF used kappa chains. Antigen-binding analyses of these RF revealed that all the synovial tissue-derived RF from the advanced RA patient exhibited antigen binding specificities restricted to a narrow range of gamma globulins. In contrast, the synovial RF of the other two patients were either reactive with a broader spectrum of gamma globulins or reactive with a variety of unrelated antigens. In every instance, the gamma globulin-specific RF were of all three major isotypes whereas the polyreactive RF were restricted to the IgM isotype. These data demonstrate that synovial B cells from both RA and OA patients can produce RF and that significant differences can exist among patients in the percentage of RF generated and their H and L chain isotype distribution. The reversal of the kappa:lambda ratio among the IgG and IgA RF and the more restricted antigen-binding specificities of the IgG and IgA vs IgM RF suggest that a non-stochastic, possibly antigen-driven selection process was involved in their generation. The relevance of these differences in RF precursor frequency, H and L chain distribution, and antigen specificity to these two diseases warrants further investigation.
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Affiliation(s)
- S Kaplan
- Department of Medicine, North Shore University Hospital, Manhasset, New York 11030
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Affiliation(s)
- S Hashimoto
- Department of Medicine, North Shore University Hospital, Cornell University Medical College, Manhasset, New York 11030
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Saltz L, Knowles DM, Mechanic S, Pasley P, Brooks R, Wakai M, Chiorazzi N. Augmentation by cytochalasin B of antigen receptor-mediated activation of normal and malignant human B lymphocytes. Scand J Immunol 1990; 31:109-19. [PMID: 2105526 DOI: 10.1111/j.1365-3083.1990.tb02749.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- L Saltz
- Laboratory of Immunology, Rockefeller University New York
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Tamura H, Yamazaki T, Sano M, Yamamoto Y, Wakai M, Band H. Compound-hypernucleus interpretation of Lambda 4H formation probabilities in stopped-K- absorption. Phys Rev C Nucl Phys 1989; 40:483-486. [PMID: 9966005 DOI: 10.1103/physrevc.40.r483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Sthoeger ZM, Wakai M, Tse DB, Vinciguerra VP, Allen SL, Budman DR, Lichtman SM, Schulman P, Weiselberg LR, Chiorazzi N. Production of autoantibodies by CD5-expressing B lymphocytes from patients with chronic lymphocytic leukemia. J Exp Med 1989; 169:255-68. [PMID: 2462608 PMCID: PMC2189197 DOI: 10.1084/jem.169.1.255] [Citation(s) in RCA: 221] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
CD5-expressing B lymphocytes from patients with selected chronic lymphoproliferative disorders were used to determine whether monoclonal populations of CD5+ human B cells produce autoantibodies. CD5+ B cells from 19 patients with chronic lymphocytic leukemia (CLL) and one with diffuse well-differentiated lymphocytic lymphoma (DWDL) were cultured, with and without mitogenic stimulation, to obtain Ig from these cells. 17 of the 20 samples produced Ig in vitro. mAb from nine of the 17 patients were reactive with either IgG, ssDNA, or dsDNA. In every instance, the autoantibodies displayed monotypic L chain usage that correlated precisely with the L chain expressed on the CD5+ leukemic B cell surface. These monoclonal autoantibodies varied in their degree of antigenic specificity; some were quite specific, reacting with only one antigen, whereas others were polyspecific, reacting with two or all three autoantigens tested. Three features distinguish these autoantibodies from those observed in prior studies of CD5+ B cells. First, they are clearly the products of monoclonal populations of CD5+ cells; second, several react with dsDNA, a specificity not previously reported and often seen in association with significant autoimmune disorders; and third, two of the monoclonal autoantibodies secreted by the CD5+ clones were of the IgG class. Although not all of the Ig-producing, CD5-expressing clones elaborated mAbs reactive with the autoantigens tested, greater than 50% did. It is possible that with a broader autoantigenic panel or with larger quantities of CLL/DWDL-derived Ig, even more autoantibody-producing clones might be identified. These studies may have important implications for the antigenic specificity of subsets of human B lymphocytes as well as for lymphoproliferative and autoimmune disorders in general.
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Affiliation(s)
- Z M Sthoeger
- Department of Medicine, North Shore University Hospital, Manhasset, New York 11030
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Wakai M, Band H, Sano M. Hypernucleus formation in high-energy nuclear collisions. Phys Rev C Nucl Phys 1988; 38:748-759. [PMID: 9954864 DOI: 10.1103/physrevc.38.748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Suzuki H, Wakai M, Ozawa T. Selective inhibition of mitochondrial NADH-ubiquinone reductase (Complex I) by an alkyl polyoxyethylene ether. Biochem Int 1986; 13:351-7. [PMID: 3094534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The detergent mono-n-dodecyl octaoxyethylene ether tightly bound to mitochondrial electron-transport particles and below its critical micellar concentration inhibited the NADH oxidase activity, but not the succinate oxidase activity. The result indicates that the inhibition site is in the Complex I segment. The detergent inhibited rotenone-sensitive NADH-ubiquinone reductase activity, but not NADH-ferricyanide reductase activity, of isolated Complex I. Partial removal of phospholipids from Complex I from 18.8% (w/w) to 14.5% significantly decreased its susceptibility to the inhibitor as well as to rotenone. These results show that the binding site of the detergent responsible for the inhibition lies between the NADH dehydrogenase of flavoprotein and ubiquinone in Complex I and that the binding of the detergent to the site requires phospholipids.
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Uchiyama T, Kamagata Y, Wakai M, Yoshioka M, Fujikawa H, Igarashi H. Study of the biological activities of toxic shock syndrome toxin-1. I. Proliferative response and interleukin 2 production by T cells stimulated with the toxin. Microbiol Immunol 1986; 30:469-83. [PMID: 3489157 DOI: 10.1111/j.1348-0421.1986.tb02973.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The mitogenic and interleukin 2 (IL 2) production-inducing effects of toxic shock syndrome toxin-1 (TSST-1) on murine lymphocytes were investigated. TSST-1, an exotoxin produced by Staphylococcus aureus recovered from patients with toxic shock syndrome (TSS), is thought to be a causative agent of the syndrome. TSST-1 was mitogenic for splenic T cells and peanut agglutinin (PNA)-negative thymocytes, but not for T cell-depleted spleen cells, PNA-positive thymocytes or IL 2-dependent CTLL 2-cells. A factor mitogenic for CTCC-2 cells with a molecular weight of 30-35 kdaltons was obtained by stimulating spleen cells with TSST-1 and it was absorbed by CTLL-2 cells, indicating that the factor is IL 2. For substantial amounts of IL 2 to be produced, 10 ng or more of TSST-1 per ml and 48 hr or more of incubation were required. Removal of T cells abrogated the IL 2 production by spleen cells. T cells obtained by the nylon wool column method alone produced IL 2 on TSST-1 stimulation in the presence of either macrophages or a macrophage lysate containing interleukin 1. However, T cells obtained by a combination of the nylon wool column method and anti-Ia antibody treatment produced IL 2 in the presence of macrophages but not of the macrophage lysate, indicating that IL 2 production by TSST-1-stimulated T cells is absolutely dependent on the presence of accessory cells.
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Inamura T, Kahler AC, Zolnowski DR, Garg U, Sugihara TT, Wakai M. Gamma-ray multiplicity distribution associated with massive transfer. Phys Rev C Nucl Phys 1985; 32:1539-1550. [PMID: 9953009 DOI: 10.1103/physrevc.32.1539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Kato S, Okada K, Kondo M, Hosono K, Saito T, Matsuoka N, Hatanaka K, Noro T, Nagamachi S, Shimizu H, Ogino K, Kadota Y, Matsuki S, Wakai M. Inelastic scattering of 65 MeV protons from 12C, 24Mg, 28Si, and 32S. Phys Rev C Nucl Phys 1985; 31:1616-1632. [PMID: 9952698 DOI: 10.1103/physrevc.31.1616] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Hayatsu E, Kawakubo Y, Yayoshi M, Araake M, Wakai M, Yoshida A, Yoshioka M, Nishiyama Y. Immunological responses of hamsters in the acquired immune state to Mycoplasma pneumoniae infection. Microbiol Immunol 1981; 25:1255-63. [PMID: 6801441 DOI: 10.1111/j.1348-0421.1981.tb00135.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Protective effects of vaccination of hamsters against Mycoplasma pneumoniae infection, evaluated according to the recovery of mycoplasmas and histopathological changes in the respiratory tract after challenge infection, persisted for at least 6 months after the final vaccination. Serum antibody levels reached a maximum in the second week after the last vaccination and decreased markedly between the first and the third months, but increased again in sera obtained from animals given booster injections. Metabolism-inhibiting antibodies were detected in bronchial washings of animals showing high resistance obtained by vaccinal or passive immunization. Antiserum transfer was also effective for protection but cell-mediated immune responses were not demonstrated in any animals up to 6 months after the vaccination. Even after 10 months, suppression of both mycoplasmal proliferation and lung lesions was apparent, and a single dose of the vaccine induced a significant booster effect. These findings suggest that (1) humoral immunity is more important than cell-mediated immunity in resistance of hamsters to M. pneumoniae pneumonia, and (2) the antibody secreted in the respiratory tract may be involved in the local defense mechanisms.
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Sushida K, Yayoshi M, Nakano H, Kono M, Wakai M. [The susceptibility of in vitro-selected drug-resistant strains of M. tuberculosis to lysis by mycobacteriophage PH (MTPH 9), and the study of a lysogenic mutant isolated from the SM-resistant strain (author's transl)]. Kekkaku 1981; 56:561-6. [PMID: 6799688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Sushida K, Nakano H, Wakai M. [Difference in infectivity of Mycobacterium leprae from patients in immunosuppressed mice (author's transl)]. Nihon Rai Gakkai Zasshi 1981; 50:1-7. [PMID: 7028712 DOI: 10.5025/hansen1977.50.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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37
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Yoshioka M, Sushida K, Nakano H, Yayoshi M, Araake M, Ito T, Kono M, Wakai M, Yokota K, Uramoto K. [Analytical examination of bacteria in a neonatal intensive care unit (author's transl)]. Kansenshogaku Zasshi 1980; 54:789-97. [PMID: 6788864 DOI: 10.11150/kansenshogakuzasshi1970.54.789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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38
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Sushida K, Wakai M. [Experimental transmission of M. leprae in mice treated with anti-lymphocyte serum (author's transl)]. Nihon Rai Gakkai Zasshi 1979; 48:113-9. [PMID: 395145 DOI: 10.5025/hansen1977.48.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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