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Teramoto Y, Uehara S, Masuda M, Adachi I, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Ayad R, Babu V, Behera P, Beleño C, Bennett J, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder TE, Campajola M, Červenkov D, Chang MC, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Cho SJ, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, De Nardo G, Di Capua F, Doležal Z, Dong TV, Eidelman S, Ferber T, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Greenwald D, Hadjivasiliou C, Hara T, Hartbrich O, Hayasaka K, Hayashii H, Hedges MT, Hernandez Villanueva M, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jang EJ, Jia S, Jin Y, Joo CW, Joo KK, Kahn J, Kaliyar AB, Kang KH, Karyan G, Kato Y, Kawasaki T, Kichimi H, Kiesling C, Kim BH, Kim DY, Kim SH, Kim YK, Kimmel TD, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kumar R, Kumara K, Kuzmin A, Kwon YJ, Lalwani K, Lange JS, Lee IS, Lee SC, Lewis P, Li LK, Li YB, Li Gioi L, Libby J, Lieret K, Liptak Z, Liventsev D, Luo T, MacQueen C, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mohanty GB, Mohanty S, Moon TJ, Mori T, Mrvar M, Mussa R, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Natochii A, Nayak M, Nisar NK, Nishida S, Ogawa K, Ogawa S, Ono H, Onuki Y, Pakhlov P, Pakhlova G, Pardi S, Park H, Park SH, Patra S, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Podobnik T, Popov V, Prencipe E, Prim MT, Ritter M, Rostomyan A, Rout N, Russo G, Sahoo D, Sakai Y, Sandilya S, Sangal A, Santelj L, Sanuki T, Savinov V, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Sevior ME, Shapkin M, Shebalin V, Shiu JG, Singh JB, Solovieva E, Starič M, Stottler ZS, Sumihama M, Sumisawa K, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tenchini F, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Waheed E, Wang CH, Wang E, Wang MZ, Wang P, Wang XL, Watanabe M, Won E, Xu X, Yabsley BD, Yang SB, Ye H, Yelton J, Yin JH, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Evidence for X(3872)→J/ψπ^{+}π^{-} Produced in Single-Tag Two-Photon Interactions. PHYSICAL REVIEW LETTERS 2021; 126:122001. [PMID: 33834793 DOI: 10.1103/physrevlett.126.122001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 12/14/2020] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
We report the first evidence for X(3872) production in two-photon interactions by tagging either the electron or the positron in the final state, exploring the highly virtual photon region. The search is performed in e^{+}e^{-}→e^{+}e^{-}J/ψπ^{+}π^{-}, using 825 fb^{-1} of data collected by the Belle detector operated at the KEKB e^{+}e^{-} collider. We observe three X(3872) candidates, where the expected background is 0.11±0.10 events, with a significance of 3.2σ. We obtain an estimated value for Γ[over ˜]_{γγ}B(X(3872)→J/ψπ^{+}π^{-}) assuming the Q^{2} dependence predicted by a cc[over ¯] meson model, where -Q^{2} is the invariant mass squared of the virtual photon. No X(3915)→J/ψπ^{+}π^{-} candidates are found.
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Nambu H, Onuki Y, Yamazaki K, Yakura T. Synthesis of 1-Azaazulenes Using Ring-Opening Cyclization of Spirocyclopropane with Amine. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)67] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Li Y, Jia S, Shen C, Adachi I, Aihara H, Al Said S, Asner D, Aushev T, Ayad R, Babu V, Bahinipati S, Behera P, Belous K, Bennett J, Bessner M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder T, Campajola M, Červenkov D, Chang MC, Chang P, Chen A, Cheon B, Chilikin K, Cho K, Cho SJ, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Das S, Dash N, De Nardo G, Di Capua F, Dingfelder J, Doležal Z, Dong T, Eidelman S, Epifanov D, Ferber T, Fulsom B, Garg R, Gaur V, Garmash A, Giri A, Goldenzweig P, Guan Y, Hadjivasiliou C, Hartbrich O, Hayasaka K, Hayashii H, Hedges M, Hou WS, Hsu CL, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs W, Jeon H, Jin Y, Joo C, Joo K, Kaliyar A, Kang K, Karyan G, Kawasaki T, Kiesling C, Kim D, Kim KH, Kim S, Kim YK, Kinoshita K, Kodyš P, Konno T, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kumar M, Kumar R, Kumara K, Kwon YJ, Lalwani K, Lange J, Lee I, Lee S, Li C, Li J, Li L, Li Y, Li Gioi L, Libby J, Lieret K, Liptak Z, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty G, Mohanty S, Mori T, Mussa R, Nakao M, Natkaniec Z, Natochii A, Nayak L, Nayak M, Niiyama M, Nisar N, Nishida S, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pang T, Pardi S, Park H, Park SH, Patra S, Paul S, Pedlar T, Pestotnik R, Piilonen L, Podobnik T, Popov V, Prencipe E, Prim M, Ritter M, Röhrken M, Rostomyan A, Rout N, Russo G, Sahoo D, Sakai Y, Sandilya S, Sangal A, Santelj L, Sanuki T, Savinov V, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Sevior M, Shapkin M, Sharma C, Shiu JG, Shwartz B, Sokolov A, Solovieva E, Starič M, Stottler Z, Sumihama M, Sumisawa K, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Uchida M, Uglov T, Unno Y, Uno S, Vahsen S, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Wang C, Wang E, Wang MZ, Wang P, Watanabe M, Watanuki S, Won E, Xu X, Yabsley B, Yan W, Yang S, Ye H, Yelton J, Yin J, Yuan C, Zhang Z, Zhilich V, Zhukova V, Zhulanov V. Search for a doubly charged
DDK
bound state in
ϒ(1S, 2S)
inclusive decays and via direct production in
e+e−
collisions at
s=10.520
, 10.580, and 10.867 GeV. Int J Clin Exp Med 2020. [DOI: 10.1103/physrevd.102.112001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Onuki Y, Nambu H, Yakura T. Ring-Opening Cyclization of Spirocyclopropanes Using Sulfoxonium Ylides. Chem Pharm Bull (Tokyo) 2020; 68:479-486. [DOI: 10.1248/cpb.c20-00132] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Caria G, Urquijo P, Adachi I, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Babu V, Badhrees I, Bahinipati S, Bakich AM, Behera P, Beleño C, Bennett J, Bhuyan B, Bilka T, Biswal J, Bozek A, Bračko M, Browder TE, Campajola M, Červenkov D, Chang P, Cheaib R, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho HE, Cho K, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Dash N, De Nardo G, Di Capua F, Di Carlo S, Doležal Z, Dong TV, Eidelman S, Epifanov D, Fast JE, Ferber T, Ferlewicz D, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Greenwald D, Grzymkowska O, Guan Y, Hartbrich O, Hayasaka K, Hayashii H, Higuchi T, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Kaliyar AB, Kang KH, Karyan G, Kawasaki T, Kichimi H, Kim CH, Kim DY, Kim HJ, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krohn JF, Krokovny P, Kuhr T, Kumar R, Kwon YJ, Lange JS, Lee IS, Lee JK, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Lieret K, Liventsev D, Luo T, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Metzner F, Miyabayashi K, Mohanty GB, Moon TJ, Mori T, Mussa R, Nakamura KR, Nakao M, Nath KJ, Nayak M, Nisar NK, Nishida S, Nishimura K, Ogawa K, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pal B, Pang T, Park H, Park SH, Patra S, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Prim MT, Rabusov A, Resmi PK, Ritter M, Rozanska M, Russo G, Sahoo D, Sakai Y, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Sevior ME, Shebalin V, Shiu JG, Shwartz B, Simon F, Sokolov A, Solovieva E, Starič M, Stottler ZS, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uglov T, Uno S, Usov Y, Vahsen SE, Van Tonder R, Varner G, Varvell KE, Vossen A, Waheed E, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanuki S, Wiechczynski J, Won E, Yamamoto H, Yang SB, Ye H, Yin JH, Yuan CZ, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Measurement of R(D) and R(D^{*}) with a Semileptonic Tagging Method. PHYSICAL REVIEW LETTERS 2020; 124:161803. [PMID: 32383937 DOI: 10.1103/physrevlett.124.161803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 03/10/2020] [Indexed: 06/11/2023]
Abstract
The experimental results on the ratios of branching fractions R(D)=B(B[over ¯]→Dτ^{-}ν[over ¯]_{τ})/B(B[over ¯]→Dℓ^{-}ν[over ¯]_{ℓ}) and R(D^{*})=B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}ℓ^{-}ν[over ¯]_{ℓ}), where ℓ denotes an electron or a muon, show a long-standing discrepancy with the standard model predictions, and might hint at a violation of lepton flavor universality. We report a new simultaneous measurement of R(D) and R(D^{*}), based on a data sample containing 772×10^{6} BB[over ¯] events recorded at the ϒ(4S) resonance with the Belle detector at the KEKB e^{+}e^{-} collider. In this analysis the tag-side B meson is reconstructed in a semileptonic decay mode and the signal-side τ is reconstructed in a purely leptonic decay. The measured values are R(D)=0.307±0.037±0.016 and R(D^{*})=0.283±0.018±0.014, where the first uncertainties are statistical and the second are systematic. These results are in agreement with the standard model predictions within 0.2, 1.1, and 0.8 standard deviations for R(D), R(D^{*}), and their combination, respectively. This work constitutes the most precise measurements of R(D) and R(D^{*}) performed to date as well as the first result for R(D) based on a semileptonic tagging method.
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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. PHYSICAL REVIEW LETTERS 2020; 124:141801. [PMID: 32338980 DOI: 10.1103/physrevlett.124.141801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [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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Katrenko P, Adachi I, Aihara H, Al Said S, Asner DM, Aushev T, Badhrees I, Bahinipati S, Behera P, Beleño C, Bennett J, Bhardwaj V, Bhuyan B, Biswal J, Bobrov A, Bonvicini G, Bračko M, Campajola M, Cao L, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho HE, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Di Capua F, Di Carlo S, Doležal Z, Dong TV, Eidelman S, Epifanov D, Fast JE, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Golob B, Grzymkowska O, Hartbrich O, Hayasaka K, Hayashii H, Hou WS, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Karyan G, Kichimi H, Kim DY, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Križan P, Kroeger R, Kuhr T, Lee IS, Lee SC, Lewis P, Li YB, Li Gioi L, Libby J, Lieret K, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon TJ, Mori T, Mussa R, Nakano E, Nakano T, Nakao M, Nayak M, Nisar NK, Nishida S, Nishimura K, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pang T, Pardi S, Park CW, Park H, Park SH, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Prim MT, Ritter M, Rostomyan A, Rout N, Russo G, Sahoo D, Sakai Y, Sandilya S, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Sevior ME, Shen CP, Shiu JG, Solovieva E, Starič M, Stottler ZS, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Tonder R, Varner G, Vossen A, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Won E, Yang SB, Ye H, Yelton J, Yin JH, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhukova V. Observation of the Radiative Decays of ϒ(1S) to χ_{c1}. PHYSICAL REVIEW LETTERS 2020; 124:122001. [PMID: 32281835 DOI: 10.1103/physrevlett.124.122001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/28/2020] [Accepted: 03/05/2020] [Indexed: 06/11/2023]
Abstract
We report the first observation of the radiative decay of the ϒ(1S) into a charmonium state. The significance of the observed signal of ϒ(1S)→γχ_{c1} is 6.3 standard deviations including systematics. The branching fraction is calculated to be B[ϒ(1S)→γχ_{c1}]=[4.7_{-1.8}^{+2.4}(stat)_{-0.5}^{+0.4}(sys)×10^{-5}]. We also searched for ϒ(1S) radiative decays into χ_{c0,2} and η_{c}(1S,2S), and set upper limits on their branching fractions. These results are obtained from a 24.9 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider at a center-of-mass energy equal to the ϒ(2S) mass using ϒ(1S) tagging by the ϒ(2S)→ϒ(1S)π^{+}π^{-} transitions.
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Ikeuchi-Takahashi Y, Ito S, Itokawa A, Ota M, Onuki Y, Hidaka S, Onishi H. Preparation and evaluation of orally disintegrating tablets containing taste masked microparticles of acetaminophen. DIE PHARMAZIE 2020; 75:2-6. [PMID: 32033625 DOI: 10.1691/ph.2020.9126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
In the present work, taste masked particles of acetaminophen (AAP), a highly soluble bitter tasting drug, were developed and ODT containing the taste masked particles were prepared. Taste masked particles of AAP were prepared using different amounts of tetraglycerol polyricinoleate (TGPR) and Eudragit ®E100. Although the drug content ratio and drug recovery decreased with increasing TGPR, drug release from AAP-CR100 particles containing a large amount of TGPR was mostly suppressed for 2 min. Hence, AAP-CR100 was incorporated into ODT as taste masked particles for AAP. Three major disintegrants were used for ODT, and it was confirmed that the tensile strength of all formulations showed applicable hardness for handling. The AAP-CR100-CP(40) formulation containing crospovidone showed the shortest disintegration time and the drug release from AAP-CR100-CP(40) into pH 6.8 test solution was suppressed compared with commercial AAP tablets. Because the drug release from AAP-CR100-CP(40) into the pH 1.2 test solution was rapid, it was suggested that drug release from AAP-CR100-CP(40) is suppressed in the oral cavity, and the drug is released promptly in the stomach. Thus AAP-CR100-CP(40) may be useful as an ODT in which the dissolution of AAP in the oral cavity is suppressed.
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Jin Y, Aihara H, Epifanov D, Adachi I, Al Said S, Asner D, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bahinipati S, Bansal V, Behera P, Berger M, Bhardwaj V, Bilka T, Biswal J, Bobrov A, Bonvicini G, Bozek A, Bračko M, Campajola M, Cao L, Červenkov D, Chekelian V, Chen A, Cheon B, Chilikin K, Cho H, Cho K, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Di Carlo S, Doležal Z, Dong T, Dossett D, Eidelman S, Fast J, Ferber T, Fulsom B, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Golob B, Greenwald D, Grzymkowska O, Haba J, Hayasaka K, Hayashii H, Hedges M, Hou WS, Huang K, Iijima T, Inami K, Inguglia G, Ishikawa A, Iwasaki M, Iwasaki Y, Jacobs W, Jeon H, Jia S, Joffe D, Joo K, Kahn J, Kaliyar A, Karyan G, Kawasaki T, Kichimi H, Kiesling C, Kim D, Kim H, Kim K, Kim S, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kulasiri R, Kumar R, Kuzmin A, Kwon YJ, Lalwani K, Lange J, Lee J, Lee S, Li C, Li L, Li Y, Li Gioi L, Libby J, Lieret K, Liptak Z, Liventsev D, Lu PC, Luo T, MacNaughton J, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mori T, Mussa R, Nakano E, Nakao M, Nath K, Natkaniec Z, Nayak M, Niiyama M, Nisar N, Nishida S, Ogawa S, Ono H, Onuki Y, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park H, Park SH, Patra S, Paul S, Pedlar T, Pestotnik R, Piilonen L, Popov V, Prencipe E, Purohit M, Rostomyan A, Russo G, Sahoo D, Sakai Y, Salehi M, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Seon O, Sevior M, Shebalin V, Shen C, Shiu JG, Shwartz B, Simon F, Singh J, Sokolov A, Solovieva E, Stanič S, Starič M, Stottler Z, Strube J, Sumiyoshi T, Takizawa M, Tamponi U, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Vossen A, Wang B, Wang C, Wang MZ, Wang P, Watanuki S, Won E, Yang S, Ye H, Yin J, Yuan C, Yusa Y, Zhang Z, Zhilich V, Zhukova V. Observation of
τ−→π−ντe+e−
and search for
τ−→π−ντμ+μ−. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.100.071101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Akimoto R, Al-Bataineh H, Alexander J, Alfred M, Al-Jamel A, Al-Ta'ani H, Angerami A, Aoki K, Apadula N, Aphecetche L, Aramaki Y, Armendariz R, Aronson SH, Asai J, Asano H, Aschenauer EC, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Bagoly A, Bai M, Baksay G, Baksay L, Baldisseri A, Bannier B, Barish KN, Barnes PD, Bassalleck B, Basye AT, Bathe S, Batsouli S, Baublis V, Bauer F, Baumann C, Baumgart S, Bazilevsky A, Belikov S, Belmont R, Bennett R, Berdnikov A, Berdnikov Y, Bhom JH, Bickley AA, Bjorndal MT, Blau DS, Boer M, Boissevain JG, Bok JS, Borel H, Boyle K, Brooks ML, Brown DS, Bryslawskyj J, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy JM, Butsyk S, Camacho CM, Campbell S, Canoa Roman V, Caringi A, Castera P, Chai JS, Chang BS, Chang WC, Charvet JL, Chen CH, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi JB, Choi S, Choudhury RK, Christiansen P, Chujo T, Chung P, Churyn A, Chvala O, Cianciolo V, Citron Z, Cleven CR, Cobigo Y, Cole BA, Comets MP, Conesa Del Valle Z, Connors M, Constantin P, Csanád M, Csörgő T, Dahms T, Dairaku S, Danchev I, Danley TW, Das K, Datta A, Daugherity MS, David G, Dayananda MK, Deaton MB, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dharmawardane KV, Dietzsch O, Ding L, Dion A, Do JH, Donadelli M, D'Orazio L, Drachenberg JL, Drapier O, Drees A, Drees KA, Dubey AK, Durham JM, Durum A, Dutta D, Dzhordzhadze V, Edwards S, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Engelmore T, Enokizono A, En'yo H, Espagnon B, Esumi S, Eyser KO, Fadem B, Fan W, Feege N, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Forestier B, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fung SY, Fusayasu T, Gadrat S, Gainey K, Gal C, Gallus P, Garg P, Garishvili A, Garishvili I, Gastineau F, Ge H, Germain M, Glenn A, Gong H, Gong X, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grim G, Grosse Perdekamp M, Gunji T, Guo L, Gustafsson HÅ, Hachiya T, Hadj Henni A, Haegemann C, Haggerty JS, Hagiwara MN, Hahn KI, Hamagaki H, Hamblen J, Han R, Hanks J, Harada H, Hartouni EP, Haruna K, Harvey M, Hasegawa S, Haseler TOS, Hashimoto K, Haslum E, Hasuko K, Hayano R, He X, Heffner M, Hemmick TK, Hester T, Heuser JM, Hiejima H, Hill JC, Hill K, Hobbs R, Hodges A, Hohlmann M, Hollis RS, Holmes M, Holzmann W, Homma K, Hong B, Horaguchi T, Hori Y, Hornback D, Hotvedt N, Huang J, Huang S, Hur MG, Ichihara T, Ichimiya R, Iinuma H, Ikeda Y, Imai K, Imrek J, Inaba M, Inoue Y, Iordanova A, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Ivanishchev D, Iwanaga Y, Jacak BV, Javani M, Ji Z, Jia J, Jiang X, Jin J, Jinnouchi O, Johnson BM, Jones T, Joo KS, Jouan D, Jumper DS, Kajihara F, Kametani S, Kamihara N, Kamin J, Kaneta M, Kaneti S, Kang BH, Kang JH, Kang JS, Kanou H, Kapustinsky J, Karatsu K, Kasai M, Kawagishi T, Kawall D, Kawashima M, Kazantsev AV, Kelly S, Kempel T, Khachatryan V, Khanzadeev A, Kijima KM, Kikuchi J, Kim A, Kim BI, Kim C, Kim DH, Kim DJ, Kim E, Kim EJ, Kim HJ, Kim KB, Kim M, Kim SH, Kim YJ, Kim YK, Kim YS, Kincses D, Kinney E, Kiriluk K, Kiss Á, Kistenev E, Kiyomichi A, Klatsky J, Klay J, Klein-Boesing C, Kleinjan D, Kline P, Kochenda L, Kochetkov V, Komatsu Y, Komkov B, Konno M, Koster J, Kotchetkov D, Kotov D, Kozlov A, Král A, Kravitz A, Krizek F, Kroon PJ, Kubart J, Kunde GJ, Kurgyis B, Kurihara N, Kurita K, Kurosawa M, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Layton D, Lebedev A, Le Bornec Y, Leckey S, Lee B, Lee DM, Lee J, Lee KB, Lee KS, Lee MK, Lee SH, Lee SR, Lee T, Leitch MJ, Leite MAL, Leitgab M, Lenzi B, Leung YH, Lewis B, Lewis NA, Li X, Li X, Li XH, Lichtenwalner P, Liebing P, Lim H, Lim SH, Linden Levy LA, Liška T, Litvinenko A, Liu H, Liu MX, Lökös S, Love B, Lynch D, Maguire CF, Majoros T, Makdisi YI, Makek M, Malakhov A, Malik MD, Manion A, Manko VI, Mannel E, Mao Y, Mašek L, Masui H, Masumoto S, Matathias F, McCain MC, McCumber M, McGaughey PL, McGlinchey D, McKinney C, Means N, Mendoza M, Meredith B, Miake Y, Mibe T, Mignerey AC, Mihalik DE, Mikeš P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra DK, Mishra GC, Mishra M, Mitchell JT, Mitrovski M, Mitsuka G, Miyachi Y, Miyasaka S, Mohanty AK, Mohapatra S, Moon HJ, Moon T, Morino Y, Morreale A, Morrison DP, Morrow SI, Moss JM, Motschwiller S, Moukhanova TV, Mukhopadhyay D, Murakami T, Murata J, Mwai A, Nagae T, Nagamiya S, Nagashima K, Nagata Y, Nagle JL, Naglis M, Nagy MI, Nakagawa I, Nakamiya Y, Nakamura KR, Nakamura T, Nakano K, Nam S, Nattrass C, Nederlof A, Newby J, Nguyen M, Nihashi M, Niida T, Norman BE, Nouicer R, Novák T, Novitzky N, Nyanin AS, Nystrand J, Oakley C, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Ojha ID, Oka M, Okada K, Omiwade OO, Onuki Y, Orjuela Koop JD, Osborn JD, Oskarsson A, Otterlund I, Ouchida M, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park BH, Park IH, Park J, Park S, Park SK, Park WJ, Pate SF, Patel L, Patel M, Pei H, Peng JC, Peng W, Pereira H, Perepelitsa DV, Peresedov V, Peressounko DY, PerezLara CE, Petti R, Pinkenburg C, Pisani RP, Proissl M, Purschke ML, Purwar AK, Qu H, Radzevich PV, Rak J, Rakotozafindrabe A, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Reynolds D, Riabov V, Riabov Y, Richardson E, Richford D, Rinn T, Roach D, Roche G, Rolnick SD, Romana A, Rosati M, Rosen CA, Rosendahl SSE, Rosnet P, Rowan Z, Rukoyatkin P, Runchey J, Ružička P, Rykov VL, Ryu SS, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakashita K, Sakata H, Sako H, Samsonov V, Sano M, Sano S, Sarsour M, Sato HD, Sato S, Sato T, Sawada S, Schmoll BK, Sedgwick K, Seele J, Seidl R, Semenov AY, Semenov V, Sen A, Seto R, Sharma D, Shea TK, Shein I, Shevel A, Shibata TA, Shigaki K, Shimomura M, Shohjoh T, Shoji K, Shukla P, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh BK, Singh CP, Singh V, Skoby MJ, Skutnik S, Slunečka M, Smith WC, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sukhanov A, Sullivan JP, Sun J, Sun Z, Sziklai J, Tabaru T, Takagi S, Takagui EM, Takahara A, Taketani A, Tanabe R, Tanaka KH, Tanaka Y, Taneja S, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Tarján P, Tennant E, Themann H, Thomas D, Thomas TL, Tieulent R, Todoroki T, Togawa M, Toia A, Tojo J, Tomášek L, Tomášek M, Tomita Y, Torii H, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Tsuji T, Tuli SK, Tydesjö H, Tyurin N, Ueda Y, Ujvari B, Vale C, Valle H, van Hecke HW, Vargyas M, Vazquez-Zambrano E, Veicht A, Velkovska J, Vértesi R, Vinogradov AA, Virius M, Vossen A, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe D, Watanabe K, Watanabe Y, Watanabe YS, Wei F, Wei R, Wessels J, White SN, Willis N, Winter D, Wolin S, Wong CP, Woody CL, Wright RM, Wysocki M, Xia B, Xie W, Xu C, Xu Q, Yamaguchi YL, Yamaura K, Yang R, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Yoo JH, You Z, Young GR, Younus I, Yu H, Yushmanov IE, Zajc WA, Zaudtke O, Zelenski A, Zhang C, Zharko S, Zhou S, Zimamyi J, Zolin L, Zou L. Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions. PHYSICAL REVIEW LETTERS 2019; 123:022301. [PMID: 31386493 DOI: 10.1103/physrevlett.123.022301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 04/27/2019] [Indexed: 06/10/2023]
Abstract
The PHENIX collaboration presents first measurements of low-momentum (0.4<p_{T}<3 GeV/c) direct-photon yields from Au+Au collisions at sqrt[s_{NN}]=39 and 62.4 GeV. For both beam energies the direct-photon yields are substantially enhanced with respect to expectations from prompt processes, similar to the yields observed in Au+Au collisions at sqrt[s_{NN}]=200. Analyzing the photon yield as a function of the experimental observable dN_{ch}/dη reveals that the low-momentum (>1 GeV/c) direct-photon yield dN_{γ}^{dir}/dη is a smooth function of dN_{ch}/dη and can be well described as proportional to (dN_{ch}/dη)^{α} with α≈1.25. This scaling behavior holds for a wide range of beam energies at the Relativistic Heavy Ion Collider and the Large Hadron Collider, for centrality selected samples, as well as for different A+A collision systems. At a given beam energy, the scaling also holds for high p_{T} (>5 GeV/c), but when results from different collision energies are compared, an additional sqrt[s_{NN}]-dependent multiplicative factor is needed to describe the integrated-direct-photon yield.
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Pal B, Adachi I, Adamczyk K, Aihara H, Asner D, Atmacan H, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bansal V, Behera P, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bobrov A, Bozek A, Bračko M, Browder T, Campajola M, Cao L, Červenkov D, Chekelian V, Chen A, Cheon B, Chilikin K, Cho K, Choi SK, Choi Y, Cinabro D, Cunliffe S, Di Carlo S, Doležal Z, Dong T, Dossett D, Eidelman S, Epifanov D, Fast J, Ferber T, Fulsom B, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Guan Y, Haba J, Hara T, Hayasaka K, Hayashii H, Hou WS, Hsu CL, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs W, Jia S, Jin Y, Joffe D, Joo K, Kaliyar A, Karyan G, Kichimi H, Kiesling C, Kim C, Kim D, Kim K, Kim S, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kulasiri R, Kwon YJ, Lee J, Lee S, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lu PC, Luo T, MacNaughton J, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty G, Nakao M, Nath K, Nayak M, Nisar N, Nishida S, Nishimura K, Ogawa S, Ono H, Onuki Y, Pakhlov P, Pakhlova G, Pardi S, Park SH, Patra S, Paul S, Pedlar T, Pestotnik R, Piilonen L, Popov V, Prencipe E, Rostomyan A, Russo G, Sakai Y, Salehi M, Sandilya S, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Schwartz A, Seino Y, Senyo K, Sevior M, Shen C, Shiu JG, Simon F, Sokolov A, Solovieva E, Starič M, Stottler Z, Strube J, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Uchida M, Uglov T, Uno S, Urquijo P, Van Tonder R, Varner G, Vinokurova A, Wang B, Wang C, Wang MZ, Wang P, Watanabe M, Watanuki S, Won E, Yang S, Ye H, Yelton J, Yusa Y, Zhang J, Zhang Z, Zhilich V, Zhukova V. Evidence for the decay
B0→pp¯π0. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.99.091104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Nambu H, Onuki Y, Ono N, Tsuge K, Yakura T. Ring-opening cyclization of spirocyclopropanes with stabilized sulfonium ylides for the construction of a chromane skeleton. Chem Commun (Camb) 2019; 55:6539-6542. [PMID: 31106310 DOI: 10.1039/c9cc03023a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Regioselective ring-opening cyclization of cyclohexane-1,3-dione-2-spirocyclopropanes with stabilized sulfonium ylides provided 2,3-trans-disubstituted 2,3,4,6,7,8-hexahydro-5H-1-benzopyran-5-ones in high yields without the formation of any isomers. The obtained product was readily converted into highly substituted chromane.
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Li YB, Shen CP, Yuan CZ, Adachi I, Aihara H, Al Said S, Asner DM, Aushev T, Ayad R, Badhrees I, Ban Y, Bansal V, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bondar A, Bozek A, Bračko M, Cao L, Červenkov D, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Cinabro D, Cunliffe S, Di Carlo S, Doležal Z, Dong TV, Drásal Z, Eidelman S, Fast JE, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Greenwald D, Grube B, Hayasaka K, Hayashii H, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jia S, Jin Y, Joffe D, Joo KK, Karyan G, Kawasaki T, Kichimi H, Kim DY, Kim HJ, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kumita T, Kuzmin A, Kwon YJ, Lee JY, Lee SC, Li LK, Li Gioi L, Libby J, Liventsev D, Lubej M, MacNaughton J, Masuda M, Matsuda T, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Mussa R, Nakano E, Nakao M, Nath KJ, Nayak M, Niiyama M, Nishida S, Ono H, Onuki Y, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park SH, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Russo G, Sakai Y, Salehi M, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Sevior ME, Shibata TA, Shiu JG, Shwartz B, Solovieva E, Starič M, Sumihama M, Sumiyoshi T, Sutcliffe W, Takizawa M, Tanida K, Tao Y, Tenchini F, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Van Tonder R, Varner G, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Won E, Yang SB, Ye H, Yelton J, Yin JH, Yusa Y, Zhang ZP, Zhilich V, Zhukova V. First Measurements of Absolute Branching Fractions of the Ξ_{c}^{0} Baryon at Belle. PHYSICAL REVIEW LETTERS 2019; 122:082001. [PMID: 30932568 DOI: 10.1103/physrevlett.122.082001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 01/27/2019] [Indexed: 06/09/2023]
Abstract
We present the first measurements of absolute branching fractions of Ξ_{c}^{0} decays into Ξ^{-}π^{+}, ΛK^{-}π^{+}, and pK^{-}K^{-}π^{+} final states. The measurements are made using a dataset comprising (772±11)×10^{6} BB[over ¯] pairs collected at the ϒ(4S) resonance with the Belle detector at the KEKB e^{+}e^{-} collider. We first measure the absolute branching fraction for B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0} using a missing-mass technique; the result is B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})=(9.51±2.10±0.88)×10^{-4}. We subsequently measure the product branching fractions B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})B(Ξ_{c}^{0}→Ξ^{-}π^{+}), B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})B(Ξ_{c}^{0}→ΛK^{-}π^{+}), and B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})B(Ξ_{c}^{0}→pK^{-}K^{-}π^{+}) with improved precision. Dividing these product branching fractions by the result for B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0} yields the following branching fractions: B(Ξ_{c}^{0}→Ξ^{-}π^{+})=(1.80±0.50±0.14)%, B(Ξ_{c}^{0}→ΛK^{-}π^{+})=(1.17±0.37±0.09)%, and B(Ξ_{c}^{0}→pK^{-}K^{-}π^{+})=(0.58±0.23±0.05)%. For the above branching fractions, the first uncertainties are statistical and the second are systematic. Our result for B(Ξ_{c}^{0}→Ξ^{-}π^{+}) can be combined with Ξ_{c}^{0} branching fractions measured relative to Ξ_{c}^{0}→Ξ^{-}π^{+} to yield other absolute Ξ_{c}^{0} branching fractions.
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Adachi I, Adye T, Ahmed H, Ahn JK, Aihara H, Akar S, Alam MS, Albert J, Anulli F, Arnaud N, Asner DM, Aston D, Atmacan H, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Banerjee S, Bansal V, Barlow RJ, Batignani G, Beaulieu A, Behera P, Bellis M, Ben-Haim E, Bernard D, Bernlochner FU, Bettarini S, Bettoni D, Bevan AJ, Bhardwaj V, Bhuyan B, Bianchi F, Biasini M, Biswal J, Blinov VE, Bomben M, Bondar A, Bonneaud GR, Bozek A, Bozzi C, Bračko M, Browder TE, Brown DN, Brown DN, Bünger C, Burchat PR, Buzykaev AR, Calabrese R, Calcaterra A, Calderini G, Di Carlo S, Carpinelli M, Cartaro C, Casarosa G, Cenci R, Chao DS, Chauveau J, Cheaib R, Chen A, Chen C, Cheng CH, Cheon BG, Chilikin K, Cho K, Choi Y, Choudhury S, Chrzaszcz M, Cibinetto G, Cinabro D, Cochran J, Coleman JP, Convery MR, Cowan G, Cowan R, Cremaldi L, Cunliffe S, Dash N, Davier M, Davis CL, De Mori F, De Nardo G, Denig AG, de Sangro R, Dey B, Di Lodovico F, Dittrich S, Doležal Z, Dorfan J, Drásal Z, Druzhinin VP, Dunwoodie W, Ebert M, Echenard B, Eidelman S, Eigen G, Eisner AM, Emery S, Epifanov D, Ernst JA, Faccini R, Fast JE, Feindt M, Ferber T, Ferrarotto F, Ferroni F, Field RC, Filippi A, Finocchiaro G, Fioravanti E, Flood KT, Forti F, Fritsch M, Fulsom BG, Gabathuler E, Gamba D, Garg R, Garmash A, Gary JW, Garzia I, Gaur V, Gaz A, Gelb M, Gershon TJ, Li Gioi L, Giorgi MA, Giri A, Godang R, Goldenzweig P, Golob B, Golubev VB, Gorodeisky R, Gradl W, Graham MT, Grauges E, Griessinger K, Gritsan AV, Grünberg O, Guan Y, Guido E, Guttman N, Haba J, Hafner A, Hara T, Harrison PF, Hast C, Hayasaka K, Hayashii H, Hearty C, Heck M, Hedges MT, Heß M, Hirose S, Hitlin DG, Honscheid K, Hou WS, Hsu CL, Huard Z, Van Hulse C, Hutchcroft DE, Inami K, Inguglia G, Innes WR, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Izen JM, Jacobs WW, Jawahery A, Jessop CP, Jia S, Jin Y, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Kass R, Kichimi H, Kim DY, Kim JB, Kim KT, Kim SH, Kim J, Kim P, King GJ, Kinoshita K, Koch H, Kodyš P, Kolomensky YG, Korpar S, Kotchetkov D, Kowalewski R, Kravchenko EA, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kumita T, Kuzmin A, Kwon YJ, Lacker HM, Lafferty GD, Lanceri L, Lange JS, Lange DJ, Lankford AJ, Latham TE, Leddig T, Le Diberder F, Lee IS, Lee SC, Lees JP, Leith DWGS, Li LK, Li YB, Li Y, Libby J, Liventsev D, Lockman WS, Long O, LoSecco JM, Lou XC, Lubej M, Lueck T, Luitz S, Luo T, Luppi E, Lusiani A, Lutz AM, MacFarlane DB, MacNaughton J, Mallik U, Manoni E, Marchiori G, Margoni M, Martellotti S, Martinez-Vidal F, Masuda M, Matsuda T, Mattison TS, Matvienko D, McKenna JA, Meadows BT, Merola M, Miyabayashi K, Miyashita TS, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Muller DR, Müller T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Nayak M, Neal H, Neri N, Nisar NK, Nishida S, Nugent IM, Oberhof B, Ocariz J, Ogawa S, Ongmongkolkul P, Ono H, Onuchin AP, Onuki Y, Oyanguren A, Pakhlov P, Pakhlova G, Pal B, Palano A, Palombo F, Panduro Vazquez W, Paoloni E, Pardi S, Park H, Passaggio S, Patrignani C, Patteri P, Paul S, Pavelkin I, Payne DJ, Pedlar TK, Peimer DR, Peruzzi IM, Pestotnik R, Piccolo M, Piilonen LE, Pilloni A, Piredda G, Poireau V, Popov V, Porter FC, Posocco M, Prell S, Prepost R, Puccio EMT, Purohit MV, Pushpawela BG, Rama M, Randle-Conde A, Ratcliff BN, Raven G, Resmi PK, Ritchie JL, Ritter M, Rizzo G, Roberts DA, Robertson SH, Röhrken M, Roney JM, Roodman A, Rossi A, Rotondo M, Rozanska M, Russo G, Sacco R, Al Said S, Sakai Y, Salehi M, Sandilya S, Santelj L, Santoro V, Sanuki T, Savinov V, Schneider O, Schnell G, Schroeder T, Schubert KR, Schwanda C, Schwartz AJ, Schwitters RF, Sciacca C, Seddon RM, Seino Y, Sekula SJ, Senyo K, Seon O, Serednyakov SI, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shimizu N, Shiu JG, Simi G, Simon F, Simonetto F, Skovpen YI, Smith JG, Smith AJS, So RY, Sobie RJ, Soffer A, Sokoloff MD, Solodov EP, Solovieva E, Spanier SM, Starič M, Stroili R, Sullivan MK, Sumisawa K, Sumiyoshi T, Summers DJ, Sun L, Takizawa M, Tamponi U, Tanida K, Taras P, Tasneem N, Tenchini F, Tisserand V, Todyshevx KY, Touramanis C, Uchida M, Uglov T, Unno Y, Uno S, Vahsen SE, Varner G, Vasseur G, Va'vra J, Červenkov D, Verderi M, Vitale L, Vorobyev V, Voß C, Wagner SR, Waheed E, Waldi R, Walsh JJ, Wang B, Wang CH, Wang MZ, Wang P, Watanabe Y, Wilson FF, Wilson JR, Wisniewski WJ, Won E, Wormser G, Wright DM, Wu SL, Ye H, Yuan CZ, Yusa Y, Zakharov S, Zallo A, Zani L, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. First Evidence for cos2β>0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity. PHYSICAL REVIEW LETTERS 2018; 121:261801. [PMID: 30636113 DOI: 10.1103/physrevlett.121.261801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 08/22/2018] [Indexed: 06/09/2023]
Abstract
We present first evidence that the cosine of the CP-violating weak phase 2β is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B^{0}→D^{(*)}h^{0} with D→K_{S}^{0}π^{+}π^{-} decays, where h^{0}∈{π^{0},η,ω} denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BABAR and Belle experiments collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6}BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6}BB[over ¯] pairs recorded by the Belle detector. The results of the measurement are sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle β of the CKM Unitarity Triangle is β=[22.5±4.4(stat)±1.2(syst)±0.6(model)]°. The measurement assumes no direct CP violation in B^{0}→D^{(*)}h^{0} decays. The quoted model uncertainties are due to the composition of the D^{0}→K_{S}^{0}π^{+}π^{-} decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics e^{+}e^{-}→cc[over ¯] data sample. CP violation is observed in B^{0}→D^{(*)}h^{0} decays at the level of 5.1 standard deviations. The significance for cos2β>0 is 3.7 standard deviations. The trigonometric multifold solution π/2-β=(68.1±0.7)° is excluded at the level of 7.3 standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle.
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Nambu H, Onuki Y, Ono N, Yakura T. Cover Picture: Iodide-Catalyzed Ring-Opening Cyclization of Cyclohexane-1,3-dione-2-spirocyclopropanes (Adv. Synth. Catal. 15/2018). Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Fuyama M, Ikeda H, Oyake C, Onuki Y, Watanabe T, Isoyama K. Clinical features of, and association of bladder ultrasound and uroflowmetry with, overactive bladder recovery period in children. Pediatr Int 2018; 60:569-575. [PMID: 29654627 DOI: 10.1111/ped.13577] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 03/17/2018] [Accepted: 04/03/2018] [Indexed: 01/17/2023]
Abstract
BACKGROUND Overactive bladder (OAB) is a symptomatic syndrome defined by urinary urgency, usually accompanied by increased urination frequency and nocturia, with or without urinary incontinence. The prevalence of pediatric OAB in 5-13 year olds is as high as 16.6%, but the pathophysiology and epidemiology have not been sufficiently elucidated. METHODS We retrospectively reviewed medical records in 117 children with OAB aged between 5 and 15 years during the years 2012-2016. At initial presentation, abdominal ultrasound and uroflowmetry were performed, and behavioral modifications, such as timed voiding, and constipation therapy were initiated. If there was no response after 4 weeks, antimuscarinic treatment was added. We evaluated the clinical features of OAB and factors related to the recovery period, which was defined as the period from the start of behavioral modifications to cure. RESULTS The average recovery period was 11.9 ± 9.73 months. There was no significant difference in the recovery period according to age, gender, percentage of urination frequency, nocturnal enuresis, or constipation. The recovery period was significantly shorter in the group with bladder wall thickness ≥5 mm than with bladder wall thickness <5 mm. Children with a tower-shaped curve on uroflowmetry had a significantly shorter recovery period than those with a bell-shaped curve. CONCLUSIONS Bladder wall thickness and uroflow curve shape are related to the recovery period of pediatric OAB.
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Grygier J, Goldenzweig P, Heck M, Adachi I, Aihara H, Al Said S, Asner D, Aushev T, Ayad R, Aziz T, Babu V, Badhrees I, Bahinipati S, Bakich A, Bansal V, Barberio E, Behera P, Bhuyan B, Biswal J, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder T, Červenkov D, Chang P, Chekelian V, Chen A, Cheon B, Chilikin K, Chistov R, Cho K, Choi Y, Cinabro D, Dash N, Di Carlo S, Doležal Z, Drásal Z, Dutta D, Eidelman S, Farhat H, Fast J, Ferber T, Fulsom B, Gaur V, Gabyshev N, Garmash A, Gelb M, Gillard R, Golob B, Grzymkowska O, Guido E, Haba J, Hara T, Hayasaka K, Hayashii H, Hedges M, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki Y, Jacobs W, Jaegle I, Jeon H, Jin Y, Joffe D, Joo K, Julius T, Kahn J, Kaliyar A, Kang K, Karyan G, Katrenko P, Kawasaki T, Keck T, Kichimi H, Kiesling C, Kim D, Kim H, Kim J, Kim K, Kim M, Kim S, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Krokovny P, Kuhr T, Kulasiri R, Kumita T, Kuzmin A, Kwon YJ, Lange J, Li C, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, Metzner F, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohanty G, Moon H, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Nath K, Natkaniec Z, Nayak M, Nisar N, Nishida S, Ogawa S, Okuno S, Ono H, Onuki Y, Pakhlova G, Pal B, Park CS, Park C, Park H, Paul S, Pedlar T, Pesántez L, Piilonen L, Prim M, Pulvermacher C, Ritter M, Rostomyan A, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Schwartz A, Seino Y, Senyo K, Seong I, Sevior M, Shebalin V, Shen C, Shibata TA, Shiu JG, Shwartz B, Simon F, Solovieva E, Starič M, Strube J, Sumiyoshi T, Takizawa M, Tamponi U, Tenchini F, Trabelsi K, Tsuboyama T, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Ushiroda Y, Van Hulse C, Varner G, Vorobyev V, Vossen A, Waheed E, Wang B, Wang C, Wang MZ, Wang P, Watanabe M, Watanabe Y, Wehle S, Williams K, Won E, Yamamoto H, Yamashita Y, Ye H, Yook Y, Yuan C, Yusa Y, Zhang Z, Zhilich V, Zhukova V, Zhulanov V, Ziegler M, Zupanc A. Publisher’s Note: Search for
B→hνν¯
decays with semileptonic tagging at Belle [Phys. Rev. D
96
, 091101(R) (2017)]. Int J Clin Exp Med 2018. [DOI: 10.1103/physrevd.97.099902 10.1103/physrevd.96.091101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Hirose S, Iijima T, Adachi I, Adamczyk K, Aihara H, Al Said S, Asner DM, Atmacan H, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Bansal V, Barberio E, Behera P, Berger M, Bhuyan B, Biswal J, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chang P, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Choi Y, Cinabro D, Danilov M, Dash N, Di Carlo S, Dingfelder J, Doležal Z, Drásal Z, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Garmash A, Goldenzweig P, Golob B, Greenwald D, Grygier J, Haba J, Hara K, Hasenbusch J, Hayasaka K, Hayashii H, Higuchi T, Hou WS, Hsu CL, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaegle I, Jin Y, Joffe D, Joo KK, Julius T, Kato Y, Kawasaki T, Kichimi H, Kiesling C, Kim DY, Kim JB, Kim KT, Kim MJ, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Krokovny P, Kuhr T, Kulasiri R, Kumar R, Kwon YJ, Lange JS, Li CH, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, MacNaughton J, Masuda M, Matsuda T, Matvienko D, Miyabayashi K, Miyake H, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Mussa R, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Nayak M, Niiyama M, Nisar NK, Nishida S, Ogawa S, Okuno S, Ono H, Onuki Y, Ostrowicz W, Pakhlov P, Pakhlova G, Pal B, Park CW, Park H, Paul S, Pesántez L, Pestotnik R, Piilonen LE, Prasanth K, Ritter M, Rostomyan A, Rozanska M, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Seino Y, Senyo K, Seon O, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Simon F, Sokolov A, Solovieva E, Starič M, Strube JF, Sumisawa K, Sumiyoshi T, Takizawa M, Tamponi U, Tenchini F, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Ushiroda Y, Usov Y, Van Hulse C, Varner G, Varvell KE, Vossen A, Wang CH, Wang MZ, Wang P, Watanabe M, Watanabe Y, Widmann E, Won E, Yamashita Y, Ye H, Yelton J, Yuan CZ, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. Measurement of the τ Lepton Polarization and R(D^{*}) in the Decay B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ}. PHYSICAL REVIEW LETTERS 2017; 118:211801. [PMID: 28598663 DOI: 10.1103/physrevlett.118.211801] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Indexed: 06/07/2023]
Abstract
We report the first measurement of the τ lepton polarization P_{τ}(D^{*}) in the decay B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ} as well as a new measurement of the ratio of the branching fractions R(D^{*})=B(B[over ¯]→D^{*}τ^{-}ν[over ¯]_{τ})/B(B[over ¯]→D^{*}ℓ^{-}ν[over ¯]_{ℓ}), where ℓ^{-} denotes an electron or a muon, and the τ is reconstructed in the modes τ^{-}→π^{-}ν_{τ} and τ^{-}→ρ^{-}ν_{τ}. We use the full data sample of 772×10^{6} BB[over ¯] pairs recorded with the Belle detector at the KEKB electron-positron collider. Our results, P_{τ}(D^{*})=-0.38±0.51(stat)_{-0.16}^{+0.21}(syst) and R(D^{*})=0.270±0.035(stat)_{-0.025}^{+0.028}(syst), are consistent with the theoretical predictions of the standard model.
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Wehle S, Niebuhr C, Yashchenko S, Adachi I, Aihara H, Al Said S, Asner DM, Aulchenko V, Aushev T, Ayad R, Aziz T, Babu V, Bakich AM, Bansal V, Barberio E, Bartel W, Behera P, Bhuyan B, Biswal J, Bobrov A, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Cho K, Choi Y, Cinabro D, Dash N, Dingfelder J, Doležal Z, Drásal Z, Dutta D, Eidelman S, Epifanov D, Farhat H, Fast JE, Ferber T, Fulsom BG, Gaur V, Gabyshev N, Garmash A, Gillard R, Goldenzweig P, Golob B, Grzymkowska O, Guido E, Haba J, Hara T, Hayasaka K, Hayashii H, Hedges MT, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki Y, Jacobs WW, Jaegle I, Jeon HB, Jin Y, Joffe D, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Katrenko P, Kawasaki T, Kichimi H, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim MJ, Kim SH, Kinoshita K, Koch L, Kodyš P, Korpar S, Kotchetkov D, Križan P, Krokovny P, Kuhr T, Kulasiri R, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Li CH, Li L, Li Y, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Miyabayashi K, Miyake H, Mizuk R, Mohanty GB, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Nayak M, Nisar NK, Nishida S, Ogawa S, Ono H, Onuki Y, Pakhlova G, Pal B, Park CS, Park CW, Park H, Paul S, Pesántez L, Piilonen LE, Pulvermacher C, Rauch J, Ritter M, Rostomyan A, Sakai Y, Sandilya S, Santelj L, Sanuki T, Sato Y, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Seon O, Seong IS, Sevior ME, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Sinha R, Solovieva E, Starič M, Strube JF, Sumisawa K, Sumiyoshi T, Takizawa M, Tamponi U, Tenchini F, Trabelsi K, Tsuboyama T, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Ushiroda Y, Usov Y, Vahsen SE, Van Hulse C, Varner G, Varvell KE, Vorobyev V, Vossen A, Waheed E, Wang CH, Wang MZ, Wang P, Watanabe M, Watanabe Y, Widmann E, Williams KM, Won E, Yamamoto H, Yamashita Y, Ye H, Yook Y, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Ziegler M, Zupanc A. Lepton-Flavor-Dependent Angular Analysis of B→K^{*}ℓ^{+}ℓ^{-}. PHYSICAL REVIEW LETTERS 2017; 118:111801. [PMID: 28368653 DOI: 10.1103/physrevlett.118.111801] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Indexed: 06/07/2023]
Abstract
We present a measurement of angular observables and a test of lepton flavor universality in the B→K^{*}ℓ^{+}ℓ^{-} decay, where ℓ is either e or μ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711 fb^{-1} containing 772×10^{6} BB[over ¯] pairs, collected at the ϒ(4S) resonance with the Belle detector at the asymmetric-energy e^{+}e^{-} collider KEKB. The result is consistent with standard model (SM) expectations, where the largest discrepancy from a SM prediction is observed in the muon modes with a local significance of 2.6σ.
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Mizuk R, Bondar A, Adachi I, Aihara H, Asner DM, Atmacan H, Aulchenko V, Aushev T, Ayad R, Badhrees I, Bakich AM, Barberio E, Behera P, Bhardwaj V, Bhuyan B, Biswal J, Bobrov A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Chistov R, Chobanova V, Choi SK, Choi Y, Cinabro D, Dalseno J, Danilov M, Dash N, Doležal Z, Drutskoy A, Eidelman S, Epifanov D, Ferber T, Fulsom BG, Gaur V, Garmash A, Gillard R, Goh YM, Goldenzweig P, Golob B, Greenwald D, Hara T, Hayasaka K, Hayashii H, Hou WS, Hsu CL, Inami K, Inguglia G, Ishikawa A, Iwasaki Y, Jaegle I, Julius T, Kang KH, Katrenko P, Kim DY, Kim HJ, Kim JB, Kim KT, Kim MJ, Kim SH, Kim YJ, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Krokovny P, Kuhr T, Kuzmin A, Kwon YJ, Lange JS, Li CH, Li H, Li L, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, Miyabayashi K, Miyata H, Mohanty GB, Moll A, Nakano E, Nakao M, Nanut T, Nath KJ, Negishi K, Niiyama M, Nisar NK, Nishida S, Ogawa S, Okuno S, Olsen SL, Onuki Y, Pakhlov P, Pakhlova G, Pal B, Park CW, Park H, Paul S, Pedlar TK, Pestotnik R, Petrič M, Piilonen LE, Pulvermacher C, Ritter M, Sakai Y, Sandilya S, Sanuki T, Savinov V, Schlüter T, Schneider O, Schnell G, Schwanda C, Seino Y, Semmler D, Senyo K, Seon O, Sevior ME, Shebalin V, Shibata TA, Shiu JG, Shwartz B, Simon F, Solovieva E, Starič M, Stypula J, Sumiyoshi T, Takizawa M, Tamponi U, Tanida K, Teramoto Y, Tikhomirov I, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Van Hulse C, Varner G, Vorobyev V, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe Y, Williams KM, Won E, Yamaoka J, Yamashita Y, Yelton J, Yuan CZ, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. Energy Scan of the e^{+}e^{-}→h_{b}(nP)π^{+}π^{-} (n=1, 2) Cross Sections and Evidence for ϒ(11020) Decays into Charged Bottomoniumlike States. PHYSICAL REVIEW LETTERS 2016; 117:142001. [PMID: 27740802 DOI: 10.1103/physrevlett.117.142001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Indexed: 06/06/2023]
Abstract
Using data collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider, we measure the energy dependence of the e^{+}e^{-}→h_{b}(nP)π^{+}π^{-} (n=1, 2) cross sections from thresholds up to 11.02 GeV. We find clear ϒ(10860) and ϒ(11020) peaks with little or no continuum contribution. We study the resonant substructure of the ϒ(11020)→h_{b}(nP)π^{+}π^{-} transitions and find evidence that they proceed entirely via the intermediate isovector states Z_{b}(10610) and Z_{b}(10650). The relative fraction of these states is loosely constrained by the current data: The hypothesis that only Z_{b}(10610) is produced is excluded at the level of 3.3 standard deviations, while the hypothesis that only Z_{b}(10650) is produced is not excluded at a significant level.
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Adare A, Aidala C, Ajitanand NN, Akiba Y, Al-Bataineh H, Alexander J, Alfred M, Angerami A, Aoki K, Apadula N, Aramaki Y, Asano H, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Bai M, Baksay G, Baksay L, Bandara NS, Bannier B, Barish KN, Bassalleck B, Basye AT, Bathe S, Baublis V, Baumann C, Bazilevsky A, Beaumier M, Beckman S, Belikov S, Belmont R, Bennett R, Berdnikov A, Berdnikov Y, Bhom JH, Blau DS, Bok JS, Boyle K, Brooks ML, Bryslawskyj J, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Campbell S, Caringi A, Chen CH, Chi CY, Chiu M, Choi IJ, Choi JB, Choudhury RK, Christiansen P, Chujo T, Chung P, Chvala O, Cianciolo V, Citron Z, Cole BA, Conesa Del Valle Z, Connors M, Csanád M, Csörgő T, Dahms T, Dairaku S, Danchev I, Danley TW, Das K, Datta A, Daugherity MS, David G, Dayananda MK, DeBlasio K, Dehmelt K, Denisov A, Deshpande A, Desmond EJ, Dharmawardane KV, Dietzsch O, Dion A, Diss PB, Do JH, Donadelli M, D'Orazio L, Drapier O, Drees A, Drees KA, Durham JM, Durum A, Dutta D, Edwards S, Efremenko YV, Ellinghaus F, Engelmore T, Enokizono A, En'yo H, Esumi S, Fadem B, Feege N, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Gal C, Gallus P, Garg P, Garishvili I, Ge H, Giordano F, Glenn A, Gong H, Gonin M, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grim G, Grosse Perdekamp M, Gunji T, Gustafsson HÅ, Hachiya T, Haggerty JS, Hahn KI, Hamagaki H, Hamblen J, Hamilton HF, Han R, Han SY, Hanks J, Hasegawa S, Haseler TOS, Hashimoto K, Haslum E, Hayano R, He X, Heffner M, Hemmick TK, Hester T, Hill JC, Hohlmann M, Hollis RS, Holzmann W, Homma K, Hong B, Horaguchi T, Hornback D, Hoshino T, Hotvedt N, Huang J, Huang S, Ichihara T, Ichimiya R, Ikeda Y, Imai K, Inaba M, Iordanova A, Isenhower D, Ishihara M, Issah M, Ivanishchev D, Iwanaga Y, Jacak BV, Jezghani M, Jia J, Jiang X, Jin J, Johnson BM, Jones T, Joo KS, Jouan D, Jumper DS, Kajihara F, Kamin J, Kanda S, Kang JH, Kapustinsky J, Karatsu K, Kasai M, Kawall D, Kawashima M, Kazantsev AV, Kempel T, Key JA, Khachatryan V, Khanzadeev A, Kijima KM, Kikuchi J, Kim A, Kim BI, Kim C, Kim DJ, Kim EJ, Kim GW, Kim M, Kim YJ, Kimelman B, Kinney E, Kiss Á, Kistenev E, Kitamura R, Klatsky J, Kleinjan D, Kline P, Koblesky T, Kochenda L, Komkov B, Konno M, Koster J, Kotov D, Král A, Kravitz A, Kunde GJ, Kurita K, Kurosawa M, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Lebedev A, Lee DM, Lee J, Lee KB, Lee KS, Lee S, Lee SH, Leitch MJ, Leite MAL, Li X, Lichtenwalner P, Liebing P, Lim SH, Linden Levy LA, Liška T, Liu H, Liu MX, Love B, Lynch D, Maguire CF, Makdisi YI, Makek M, Malik MD, Manion A, Manko VI, Mannel E, Mao Y, Masui H, Matathias F, McCumber M, McGaughey PL, McGlinchey D, McKinney C, Means N, Meles A, Mendoza M, Meredith B, Miake Y, Mibe T, Mignerey AC, Miki K, Milov A, Mishra DK, Mitchell JT, Miyasaka S, Mizuno S, Mohanty AK, Montuenga P, Moon HJ, Moon T, Morino Y, Morreale A, Morrison DP, Moukhanova TV, Murakami T, Murata J, Mwai A, Nagamiya S, Nagashima K, Nagle JL, Naglis M, Nagy MI, Nakagawa I, Nakagomi H, Nakamiya Y, Nakamura KR, Nakamura T, Nakano K, Nam S, Nattrass C, Netrakanti PK, Newby J, Nguyen M, Nihashi M, Niida T, Nishimura S, Nouicer R, Novák T, Novitzky N, Nyanin AS, Oakley C, O'Brien E, Oda SX, Ogilvie CA, Oka M, Okada K, Onuki Y, Orjuela Koop JD, Osborn JD, Oskarsson A, Ouchida M, Ozawa K, Pak R, Pantuev V, Papavassiliou V, Park IH, Park JS, Park S, Park SK, Park WJ, Pate SF, Patel M, Pei H, Peng JC, Pereira H, Perepelitsa DV, Perera GDN, Peressounko DY, Perry J, Petti R, Pinkenburg C, Pinson R, Pisani RP, Proissl M, Purschke ML, Qu H, Rak J, Ramson BJ, Ravinovich I, Read KF, Rembeczki S, Reygers K, Reynolds D, Riabov V, Riabov Y, Richardson E, Rinn T, Roach D, Roche G, Rolnick SD, Rosati M, Rosen CA, Rosendahl SSE, Rowan Z, Rubin JG, Ružička P, Sahlmueller B, Saito N, Sakaguchi T, Sakashita K, Sako H, Samsonov V, Sano S, Sarsour M, Sato S, Sato T, Sawada S, Schaefer B, Schmoll BK, Sedgwick K, Seele J, Seidl R, Sen A, Seto R, Sett P, Sexton A, Sharma D, Shein I, Shibata TA, Shigaki K, Shimomura M, Shoji K, Shukla P, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh BK, Singh CP, Singh V, Slunečka M, Snowball M, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Stankus PW, Stenlund E, Stepanov M, Stoll SP, Sugitate T, Sukhanov A, Sumita T, Sun J, Sziklai J, Takagui EM, Taketani A, Tanabe R, Tanaka Y, Taneja S, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Themann H, Thomas D, Thomas TL, Tieulent R, Timilsina A, Todoroki T, Togawa M, Toia A, Tomášek L, Tomášek M, Torii H, Towell CL, Towell R, Towell RS, Tserruya I, Tsuchimoto Y, Vale C, Valle H, van Hecke HW, Vazquez-Zambrano E, Veicht A, Velkovska J, Vértesi R, Virius M, Vrba V, Vznuzdaev E, Wang XR, Watanabe D, Watanabe K, Watanabe Y, Watanabe YS, Wei F, Wei R, Wessels J, White AS, White SN, Winter D, Woody CL, Wright RM, Wysocki M, Xia B, Xue L, Yalcin S, Yamaguchi YL, Yamaura K, Yang R, Yanovich A, Ying J, Yokkaichi S, Yoo JH, Yoon I, You Z, Young GR, Younus I, Yu H, Yushmanov IE, Zajc WA, Zelenski A, Zhou S, Zou L. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions at √[s(NN)]=200 GeV. PHYSICAL REVIEW LETTERS 2016; 116:122301. [PMID: 27058071 DOI: 10.1103/physrevlett.116.122301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Indexed: 06/05/2023]
Abstract
Jet production rates are measured in p+p and d+Au collisions at sqrt[s_{NN}]=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R=0.3 anti-k_{t} algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multiwire proportional chambers, and the jet transverse momentum (p_{T}) spectra are corrected for the detector response. Spectra are reported for jets with 12<p_{T}<50 GeV/c, within a pseudorapidity acceptance of |η|<0.3. The nuclear-modification factor (R_{dAu}) values for 0%-100% d+Au events are found to be consistent with unity, constraining the role of initial state effects on jet production. However, the centrality-selected R_{dAu} values and central-to-peripheral ratios (R_{CP}) show large, p_{T}-dependent deviations from unity, challenging the conventional models that relate hard-process rates and soft-particle production in collisions involving nuclei.
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Onuki Y, Kida C, Funatani C, Hayashi Y, Takayama K. MRI as a promising tool for evaluation of the stability of cosmetic emulsions. Int J Cosmet Sci 2015; 38:272-8. [DOI: 10.1111/ics.12290] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/17/2015] [Indexed: 11/29/2022]
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Adare A, Afanasiev S, Aidala C, Ajitanand NN, Akiba Y, Akimoto R, Al-Bataineh H, Alexander J, Alfred M, Al-Ta'ani H, Andrews KR, Angerami A, Aoki K, Apadula N, Aphecetche L, Appelt E, Aramaki Y, Armendariz R, Aronson SH, Asai J, Asano H, Aschenauer EC, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Bai M, Baksay G, Baksay L, Baldisseri A, Bandara NS, Bannier B, Barish KN, Barnes PD, Bassalleck B, Basye AT, Bathe S, Batsouli S, Baublis V, Baumann C, Bazilevsky A, Beaumier M, Beckman S, Belikov S, Belmont R, Ben-Benjamin J, Bennett R, Berdnikov A, Berdnikov Y, Bhom JH, Bickley AA, Blau DS, Boissevain JG, Bok JS, Borel H, Boyle K, Brooks ML, Broxmeyer D, Bryslawskyj J, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Camacho CM, Campbell S, Caringi A, Castera P, Chang BS, Chang WC, Charvet JL, Chen CH, Chernichenko S, Chi CY, Chiba J, Chiu M, Choi IJ, Choi JB, Choudhury RK, Christiansen P, Chujo T, Chung P, Churyn A, Chvala O, Cianciolo V, Citron Z, Cleven CR, Cole BA, Comets MP, Conesa del Valle Z, Connors M, Constantin P, Csanád M, Csörgő T, Dahms T, Dairaku S, Danchev I, Danley D, Das K, Datta A, Daugherity MS, David G, Dayananda MK, Deaton MB, DeBlasio K, Dehmelt K, Delagrange H, Denisov A, d'Enterria D, Deshpande A, Desmond EJ, Dharmawardane KV, Dietzsch O, Dion A, Diss PB, Do JH, Donadelli M, D'Orazio L, Drapier O, Drees A, Drees KA, Dubey AK, Durham JM, Durum A, Dutta D, Dzhordzhadze V, Edwards S, Efremenko YV, Egdemir J, Ellinghaus F, Emam WS, Engelmore T, Enokizono A, En'yo H, Esumi S, Eyser KO, Fadem B, Feege N, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Gadrat S, Gal C, Gallus P, Garg P, Garishvili I, Ge H, Giordano F, Glenn A, Gong H, Gong X, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grim G, Grosse Perdekamp M, Gu Y, Gunji T, Guo L, Gustafsson HÅ, Hachiya T, Hadj Henni A, Haegemann C, Haggerty JS, Hahn KI, Hamagaki H, Hamblen J, Hamilton HF, Han R, Han SY, Hanks J, Harada H, Harper C, Hartouni EP, Haruna K, Hasegawa S, Haseler TOS, Hashimoto K, Haslum E, Hayano R, He X, Heffner M, Hemmick TK, Hester T, Hiejima H, Hill JC, Hobbs R, Hohlmann M, Hollis RS, Holzmann W, Homma K, Hong B, Horaguchi T, Hori Y, Hornback D, Hoshino T, Hotvedt N, Huang J, Huang S, Ichihara T, Ichimiya R, Iinuma H, Ikeda Y, Imai K, Imrek J, Inaba M, Inoue Y, Iordanova A, Isenhower D, Isenhower L, Ishihara M, Isobe T, Issah M, Isupov A, Ivanishchev D, Iwanaga Y, Jacak BV, Jezghani M, Jia J, Jiang X, Jin J, Jinnouchi O, John D, Johnson BM, Jones T, Joo KS, Jouan D, Jumper DS, Kajihara F, Kametani S, Kamihara N, Kamin J, Kanda S, Kaneta M, Kaneti S, Kang BH, Kang JH, Kang JS, Kanou H, Kapustinsky J, Karatsu K, Kasai M, Kawall D, Kawashima M, Kazantsev AV, Kempel T, Key JA, Khachatryan V, Khanzadeev A, Kijima KM, Kikuchi J, Kim A, Kim BI, Kim C, Kim DH, Kim DJ, Kim E, Kim EJ, Kim GW, Kim M, Kim SH, Kim YJ, Kim YK, Kimelman B, Kinney E, Kiriluk K, Kiss Á, Kistenev E, Kitamura R, Kiyomichi A, Klatsky J, Klay J, Klein-Boesing C, Kleinjan D, Kline P, Koblesky T, Kochenda L, Kochetkov V, Komkov B, Konno M, Koster J, Kotchetkov D, Kotov D, Kozlov A, Král A, Kravitz A, Kubart J, Kunde GJ, Kurihara N, Kurita K, Kurosawa M, Kweon MJ, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Layton D, Lebedev A, Lee DM, Lee J, Lee KB, Lee KS, Lee MK, Lee S, Lee SH, Lee SR, Lee T, Leitch MJ, Leite MAL, Lenzi B, Li X, Lichtenwalner P, Liebing P, Lim SH, Linden Levy LA, Liška T, Litvinenko A, Liu H, Liu MX, Love B, Lynch D, Maguire CF, Makdisi YI, Makek M, Malakhov A, Malik MD, Manion A, Manko VI, Mannel E, Mao Y, Mašek L, Masui H, Matathias F, McCumber M, McGaughey PL, McGlinchey D, McKinney C, Means N, Meles A, Mendoza M, Meredith B, Miake Y, Mibe T, Mignerey AC, Mikeš P, Miki K, Miller TE, Milov A, Mioduszewski S, Mishra DK, Mishra M, Mitchell JT, Mitrovski M, Miyachi Y, Miyasaka S, Mizuno S, Mohanty AK, Montuenga P, Moon HJ, Moon T, Morino Y, Morreale A, Morrison DP, Motschwiller S, Moukhanova TV, Mukhopadhyay D, Murakami T, Murata J, Mwai A, Nagamiya S, Nagashima K, Nagata Y, Nagle JL, Naglis M, Nagy MI, Nakagawa I, Nakagomi H, Nakamiya Y, Nakamura KR, Nakamura T, Nakano K, Nam S, Nattrass C, Netrakanti PK, Newby J, Nguyen M, Nihashi M, Niida T, Nishimura S, Norman BE, Nouicer R, Novak T, Novitzky N, Nyanin AS, Oakley C, O'Brien E, Oda SX, Ogilvie CA, Ohnishi H, Oka M, Okada K, Omiwade OO, Onuki Y, Orjuela Koop JD, Osborn JD, Oskarsson A, Ouchida M, Ozawa K, Pak R, Pal D, Palounek APT, Pantuev V, Papavassiliou V, Park BH, Park IH, Park J, Park JS, Park S, Park SK, Park WJ, Pate SF, Patel L, Patel M, Pei H, Peng JC, Pereira H, Perepelitsa DV, Perera GDN, Peresedov V, Peressounko DY, Perry J, Petti R, Pinkenburg C, Pinson R, Pisani RP, Proissl M, Purschke ML, Purwar AK, Qu H, Rak J, Rakotozafindrabe A, Ramson BJ, Ravinovich I, Read KF, Rembeczki S, Reuter M, Reygers K, Reynolds D, Riabov V, Riabov Y, Richardson E, Rinn T, Roach D, Roche G, Rolnick SD, Romana A, Rosati M, Rosen CA, Rosendahl SSE, Rosnet P, Rowan Z, Rubin JG, Rukoyatkin P, Ružička P, Rykov VL, Sahlmueller B, Saito N, Sakaguchi T, Sakai S, Sakashita K, Sakata H, Sako H, Samsonov V, Sano S, Sarsour M, Sato S, Sato T, Savastio M, Sawada S, Schaefer B, Schmoll BK, Sedgwick K, Seele J, Seidl R, Semenov AY, Semenov V, Sen A, Seto R, Sett P, Sexton A, Sharma D, Shein I, Shevel A, Shibata TA, Shigaki K, Shim HH, Shimomura M, Shoji K, Shukla P, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh BK, Singh CP, Singh V, Skutnik S, Slunečka M, Snowball M, Sodre T, Soldatov A, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Staley F, Stankus PW, Stenlund E, Stepanov M, Ster A, Stoll SP, Sugitate T, Suire C, Sukhanov A, Sumita T, Sun J, Sziklai J, Tabaru T, Takagi S, Takagui EM, Takahara A, Taketani A, Tanabe R, Tanaka Y, Taneja S, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Tarján P, Tennant E, Themann H, Thomas D, Thomas TL, Tieulent R, Timilsina A, Todoroki T, Togawa M, Toia A, Tojo J, Tomášek L, Tomášek M, Tomita Y, Torii H, Towell CL, Towell R, Towell RS, Tram VN, Tserruya I, Tsuchimoto Y, Utsunomiya K, Vale C, Valle H, van Hecke HW, Vazquez-Zambrano E, Veicht A, Velkovska J, Vértesi R, Vinogradov AA, Virius M, Vossen A, Vrba V, Vznuzdaev E, Wagner M, Walker D, Wang XR, Watanabe D, Watanabe K, Watanabe Y, Watanabe YS, Wei F, Wei R, Wessels J, White AS, White SN, Winter D, Woody CL, Wright RM, Wysocki M, Xia B, Xie W, Xue L, Yalcin S, Yamaguchi YL, Yamaura K, Yang R, Yanovich A, Yasin Z, Ying J, Yokkaichi S, Yoo JH, Yoo JS, Yoon I, You Z, Young GR, Younus I, Yu H, Yushmanov IE, Zajc WA, Zaudtke O, Zelenski A, Zhang C, Zhou S, Zimamyi J, Zolin L, Zou L. Measurements of Elliptic and Triangular Flow in High-Multiplicity 3He+Au Collisions at √(s(NN))=200 GeV. PHYSICAL REVIEW LETTERS 2015; 115:142301. [PMID: 26551807 DOI: 10.1103/physrevlett.115.142301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Indexed: 06/05/2023]
Abstract
We present the first measurement of elliptic (v(2)) and triangular (v(3)) flow in high-multiplicity (3)He+Au collisions at √(s(NN))=200 GeV. Two-particle correlations, where the particles have a large separation in pseudorapidity, are compared in (3)He+Au and in p+p collisions and indicate that collective effects dominate the second and third Fourier components for the correlations observed in the (3)He+Au system. The collective behavior is quantified in terms of elliptic v(2) and triangular v(3) anisotropy coefficients measured with respect to their corresponding event planes. The v(2) values are comparable to those previously measured in d+Au collisions at the same nucleon-nucleon center-of-mass energy. Comparisons with various theoretical predictions are made, including to models where the hot spots created by the impact of the three (3)He nucleons on the Au nucleus expand hydrodynamically to generate the triangular flow. The agreement of these models with data may indicate the formation of low-viscosity quark-gluon plasma even in these small collision systems.
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Abdesselam A, Adachi I, Adametz A, Adye T, Ahmed H, Aihara H, Akar S, Alam MS, Albert J, Al Said S, Andreassen R, Angelini C, Anulli F, Arinstein K, Arnaud N, Asner DM, Aston D, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bahinipati S, Bakich AM, Band HR, Banerjee S, Barberio E, Bard DJ, Barlow RJ, Batignani G, Beaulieu A, Bellis M, Ben-Haim E, Bernard D, Bernlochner FU, Bettarini S, Bettoni D, Bevan AJ, Bhardwaj V, Bhuyan B, Bianchi F, Biasini M, Biswal J, Blinov VE, Bloom PC, Bobrov A, Bomben M, Bondar A, Bonneaud GR, Bonvicini G, Bozek A, Bozzi C, Bračko M, Briand H, Browder TE, Brown DN, Brown DN, Bünger C, Burchat PR, Buzykaev AR, Calabrese R, Calcaterra A, Calderini G, Carpinelli M, Cartaro C, Casarosa G, Cenci R, Červenkov D, Chang P, Chao DS, Chauveau J, Cheaib R, Chekelian V, Chen A, Chen C, Cheng CH, Cheon BG, Chilikin K, Chistov R, Cho K, Chobanova V, Choi HHF, Choi SK, Chrzaszcz M, Cibinetto G, Cinabro D, Cochran J, Coleman JP, Contri R, Convery MR, Cowan G, Cowan R, Cremaldi L, Dalseno J, Dasu S, Davier M, Davis CL, De Mori F, De Nardo G, Denig AG, Derkach D, de Sangro R, Dey B, Di Lodovico F, Dingfelder J, Dittrich S, Doležal Z, Dorfan J, Drásal Z, Drutskoy A, Druzhinin VP, Dubois-Felsmann GP, Dunwoodie W, Dutta D, Ebert M, Echenard B, Eidelman S, Eigen G, Eisner AM, Emery S, Ernst JA, Faccini R, Farhat H, Fast JE, Feindt M, Ferber T, Ferrarotto F, Ferroni F, Field RC, Filippi A, Finocchiaro G, Fioravanti E, Flood KT, Ford WT, Forti F, Franco Sevilla M, Fritsch M, Fry JR, Fulsom BG, Gabathuler E, Gabyshev N, Gamba D, Garmash A, Gary JW, Garzia I, Gaspero M, Gaur V, Gaz A, Gershon TJ, Getzkow D, Gillard R, Li Gioi L, Giorgi MA, Glattauer R, Godang R, Goh YM, Goldenzweig P, Golob B, Golubev VB, Gorodeisky R, Gradl W, Graham MT, Grauges E, Griessinger K, Gritsan AV, Grosdidier G, Grünberg O, Guttman N, Haba J, Hafner A, Hamilton B, Hara T, Harrison PF, Hast C, Hayasaka K, Hayashii H, Hearty C, He XH, Hess M, Hitlin DG, Hong TM, Honscheid K, Hou WS, Hsiung YB, Huard Z, Hutchcroft DE, Iijima T, Inguglia G, Innes WR, Ishikawa A, Itoh R, Iwasaki Y, Izen JM, Jaegle I, Jawahery A, Jessop CP, Joffe D, Joo KK, Julius T, Kang KH, Kass R, Kawasaki T, Kerth LT, Khan A, Kiesling C, Kim DY, Kim JB, Kim JH, Kim KT, Kim P, Kim SH, Kim YJ, King GJ, Kinoshita K, Ko BR, Koch H, Kodyš P, Kolomensky YG, Korpar S, Kovalskyi D, Kowalewski R, Kravchenko EA, Križan P, Krokovny P, Kuhr T, Kumar R, Kuzmin A, Kwon YJ, Lacker HM, Lafferty GD, Lanceri L, Lange DJ, Lankford AJ, Latham TE, Leddig T, Le Diberder F, Lee DH, Lee IS, Lee MJ, Lees JP, Leith DWGS, Leruste P, Lewczuk MJ, Lewis P, Libby J, Lockman WS, Long O, Lopes Pegna D, LoSecco JM, Lou XC, Lueck T, Luitz S, Lukin P, Luppi E, Lusiani A, Luth V, Lutz AM, Lynch G, MacFarlane DB, Malaescu B, Mallik U, Manoni E, Marchiori G, Margoni M, Martellotti S, Martinez-Vidal F, Masuda M, Mattison TS, Matvienko D, McKenna JA, Meadows BT, Miyabayashi K, Miyashita TS, Miyata H, Mizuk R, Mohanty GB, Moll A, Monge MR, Moon HK, Morandin M, Muller DR, Mussa R, Nakano E, Nakazawa H, Nakao M, Nanut T, Nayak M, Neal H, Neri N, Nisar NK, Nishida S, Nugent IM, Oberhof B, Ocariz J, Ogawa S, Okuno S, Olaiya EO, Olsen J, Ongmongkolkul P, Onorato G, Onuchin AP, Onuki Y, Ostrowicz W, Oyanguren A, Pakhlova G, Pakhlov P, Palano A, Pal B, Palombo F, Pan Y, Panduro Vazquez W, Paoloni E, Park CW, Park H, Passaggio S, Patel PM, Patrignani C, Patteri P, Payne DJ, Pedlar TK, Peimer DR, Peruzzi IM, Pesántez L, Pestotnik R, Petrič M, Piccolo M, Piemontese L, Piilonen LE, Pilloni A, Piredda G, Playfer S, Poireau V, Porter FC, Posocco M, Prasad V, Prell S, Prepost R, Puccio EMT, Pulliam T, Purohit MV, Pushpawela BG, Rama M, Randle-Conde A, Ratcliff BN, Raven G, Ribežl E, Richman JD, Ritchie JL, Rizzo G, Roberts DA, Robertson SH, Röhrken M, Roney JM, Roodman A, Rossi A, Rostomyan A, Rotondo M, Roudeau P, Sacco R, Sakai Y, Sandilya S, Santelj L, Santoro V, Sanuki T, Sato Y, Savinov V, Schindler RH, Schneider O, Schnell G, Schroeder T, Schubert KR, Schumm BA, Schwanda C, Schwartz AJ, Schwitters RF, Sciacca C, Seiden A, Sekula SJ, Senyo K, Seon O, Serednyakov SI, Sevior ME, Shapkin M, Shebalin V, Shen CP, Shibata TA, Shiu JG, Simard M, Simi G, Simon F, Simonetto F, Skovpen YI, Smith AJS, Smith JG, Snyder A, So RY, Sobie RJ, Soffer A, Sohn YS, Sokoloff MD, Sokolov A, Solodov EP, Solovieva E, Spaan B, Spanier SM, Starič M, Stocchi A, Stroili R, Stugu B, Su D, Sullivan MK, Sumihama M, Sumisawa K, Sumiyoshi T, Summers DJ, Sun L, Tamponi U, Taras P, Tasneem N, Teramoto Y, Tisserand V, Todyshev KY, Toki WH, Touramanis C, Trabelsi K, Tsuboyama T, Uchida M, Uglov T, Unno Y, Uno S, Usov Y, Uwer U, Vahsen SE, Van Hulse C, Vanhoefer P, Varner G, Vasseur G, Va'vra J, Verderi M, Vinokurova A, Vitale L, Vorobyev V, Voß C, Wagner MN, Wagner SR, Waldi R, Walsh JJ, Wang CH, Wang MZ, Wang P, Watanabe Y, West CA, Williams KM, Wilson FF, Wilson JR, Wisniewski WJ, Won E, Wormser G, Wright DM, Wu SL, Wulsin HW, Yamamoto H, Yamaoka J, Yashchenko S, Yuan CZ, Yusa Y, Zallo A, Zhang CC, Zhang ZP, Zhilich V, Zhulanov V, Zupanc A. First Observation of CP Violation in B[over ¯]^{0}→D_{CP}^{(*)}h^{0} Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data. PHYSICAL REVIEW LETTERS 2015; 115:121604. [PMID: 26430984 DOI: 10.1103/physrevlett.115.121604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Indexed: 06/05/2023]
Abstract
We report a measurement of the time-dependent CP asymmetry of B[over ¯]^{0}→D_{CP}^{(*)}h^{0} decays, where the light neutral hadron h^{0} is a π^{0}, η, or ω meson, and the neutral D meson is reconstructed in the CP eigenstates K^{+}K^{-}, K_{S}^{0}π^{0}, or K_{S}^{0}ω. The measurement is performed combining the final data samples collected at the ϒ(4S) resonance by the BABAR and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6} BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6} BB[over ¯] pairs recorded by the Belle detector. We measure the CP asymmetry parameters -η_{f}S=+0.66±0.10(stat)±0.06(syst) and C=-0.02±0.07(stat)±0.03(syst). These results correspond to the first observation of CP violation in B[over ¯]^{0}→D_{CP}^{(*)}h^{0} decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
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Adare A, Aidala C, Ajitanand NN, Akiba Y, Akimoto R, Al-Bataineh H, Al-Ta'ani H, Alexander J, Andrews KR, Angerami A, Aoki K, Apadula N, Appelt E, Aramaki Y, Armendariz R, Aschenauer EC, Atomssa ET, Averbeck R, Awes TC, Azmoun B, Babintsev V, Bai M, Baksay G, Baksay L, Bannier B, Barish KN, Bassalleck B, Basye AT, Bathe S, Baublis V, Baumann C, Bazilevsky A, Belikov S, Belmont R, Ben-Benjamin J, Bennett R, Bhom JH, Blau DS, Bok JS, Boyle K, Brooks ML, Broxmeyer D, Buesching H, Bumazhnov V, Bunce G, Butsyk S, Campbell S, Caringi A, Castera P, Chen CH, Chi CY, Chiu M, Choi IJ, Choi JB, Choudhury RK, Christiansen P, Chujo T, Chung P, Chvala O, Cianciolo V, Citron Z, Cole BA, Conesa Del Valle Z, Connors M, Csanád M, Csörgő T, Dahms T, Dairaku S, Danchev I, Das K, Datta A, David G, Dayananda MK, Denisov A, Deshpande A, Desmond EJ, Dharmawardane KV, Dietzsch O, Dion A, Donadelli M, Drapier O, Drees A, Drees KA, Durham JM, Durum A, Dutta D, D'Orazio L, Edwards S, Efremenko YV, Ellinghaus F, Engelmore T, Enokizono A, En'yo H, Esumi S, Fadem B, Fields DE, Finger M, Finger M, Fleuret F, Fokin SL, Fraenkel Z, Frantz JE, Franz A, Frawley AD, Fujiwara K, Fukao Y, Fusayasu T, Gal C, Garishvili I, Glenn A, Gong H, Gong X, Gonin M, Goto Y, Granier de Cassagnac R, Grau N, Greene SV, Grim G, Grosse Perdekamp M, Gunji T, Guo L, Gustafsson HÅ, Haggerty JS, Hahn KI, Hamagaki H, Hamblen J, Han R, Hanks J, Harper C, Hashimoto K, Haslum E, Hayano R, He X, Heffner M, Hemmick TK, Hester T, Hill JC, Hohlmann M, Hollis RS, Holzmann W, Homma K, Hong B, Horaguchi T, Hori Y, Hornback D, Huang S, Ichihara T, Ichimiya R, Iinuma H, Ikeda Y, Imai K, Inaba M, Iordanova A, Isenhower D, Ishihara M, Issah M, Ivanischev D, Iwanaga Y, Jacak BV, Jia J, Jiang X, Jin J, John D, Johnson BM, Jones T, Joo KS, Jouan D, Jumper DS, Kajihara F, Kamin J, Kaneti S, Kang BH, Kang JH, Kang JS, Kapustinsky J, Karatsu K, Kasai M, Kawall D, Kawashima M, Kazantsev AV, Kempel T, Khanzadeev A, Kijima KM, Kikuchi J, Kim A, Kim BI, Kim DJ, Kim EJ, Kim YJ, Kim YK, Kinney E, Kiss Á, Kistenev E, Kleinjan D, Kline P, Kochenda L, Komkov B, Konno M, Koster J, Kotov D, Král A, Kravitz A, Kunde GJ, Kurita K, Kurosawa M, Kwon Y, Kyle GS, Lacey R, Lai YS, Lajoie JG, Lebedev A, Lee DM, Lee J, Lee KB, Lee KS, Lee SH, Lee SR, Leitch MJ, Leite MAL, Li X, Lichtenwalner P, Liebing P, Lim SH, Linden Levy LA, Liška T, Liu H, Liu MX, Love B, Lynch D, Maguire CF, Makdisi YI, Malik MD, Manion A, Manko VI, Mannel E, Mao Y, Masui H, Matathias F, McCumber M, McGaughey PL, McGlinchey D, McKinney C, Means N, Mendoza M, Meredith B, Miake Y, Mibe T, Mignerey AC, Miki K, Milov A, Mitchell JT, Miyachi Y, Mohanty AK, Moon HJ, Morino Y, Morreale A, Morrison DP, Motschwiller S, Moukhanova TV, Murakami T, Murata J, Nagamiya S, Nagle JL, Naglis M, Nagy MI, Nakagawa I, Nakamiya Y, Nakamura KR, Nakamura T, Nakano K, Nam S, Newby J, Nguyen M, Nihashi M, Nouicer R, Nyanin AS, Oakley C, O'Brien E, Oda SX, Ogilvie CA, Oka M, Okada K, Onuki Y, Oskarsson A, Ouchida M, Ozawa K, Pak R, Pantuev V, Papavassiliou V, Park BH, Park IH, Park SK, Park WJ, Pate SF, Patel L, Pei H, Peng JC, Pereira H, Peressounko DY, Petti R, Pinkenburg C, Pisani RP, Proissl M, Purschke ML, Qu H, Rak J, Ravinovich I, Read KF, Rembeczki S, Reygers K, Riabov V, Riabov Y, Richardson E, Roach D, Roche G, Rolnick SD, Rosati M, Rosen CA, Rosendahl SSE, Ružička P, Sahlmueller B, Saito N, Sakaguchi T, Sakashita K, Samsonov V, Sano S, Sarsour M, Sato T, Savastio M, Sawada S, Sedgwick K, Seele J, Seidl R, Seto R, Sharma D, Shein I, Shibata TA, Shigaki K, Shim HH, Shimomura M, Shoji K, Shukla P, Sickles A, Silva CL, Silvermyr D, Silvestre C, Sim KS, Singh BK, Singh CP, Singh V, Slunečka M, Sodre T, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Stankus PW, Stenlund E, Stoll SP, Sugitate T, Sukhanov A, Sun J, Sziklai J, Takagui EM, Takahara A, Taketani A, Tanabe R, Tanaka Y, Taneja S, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Tennant E, Themann H, Thomas D, Thomas TL, Togawa M, Toia A, Tomášek L, Tomášek M, Torii H, Towell RS, Tserruya I, Tsuchimoto Y, Utsunomiya K, Vale C, Valle H, van Hecke HW, Vazquez-Zambrano E, Veicht A, Velkovska J, Vértesi R, Virius M, Vossen A, Vrba V, Vznuzdaev E, Wang XR, Watanabe D, Watanabe K, Watanabe Y, Watanabe YS, Wei F, Wei R, Wessels J, White SN, Winter D, Woody CL, Wright RM, Wysocki M, Yamaguchi YL, Yamaura K, Yang R, Yanovich A, Ying J, Yokkaichi S, Yoo JS, You Z, Young GR, Younus I, Yushmanov IE, Zajc WA, Zelenski A, Zhou S. Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Central d+Au Collisions at sqrt[s_{NN}]=200 GeV. PHYSICAL REVIEW LETTERS 2015; 114:192301. [PMID: 26024164 DOI: 10.1103/physrevlett.114.192301] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Indexed: 06/04/2023]
Abstract
We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central d+Au and minimum bias p+p collisions at sqrt[s_{NN}]=200 GeV. The charged hadron is measured at midrapidity |η|<0.35, and the energy is measured at large rapidity (-3.7<η<-3.1, Au-going direction). An enhanced near-side angular correlation across |Δη|>2.75 is observed in d+Au collisions. Using the event plane method applied to the Au-going energy distribution, we extract the anisotropy strength v_{2} for inclusive charged hadrons at midrapidity up to p_{T}=4.5 GeV/c. We also present the measurement of v_{2} for identified π^{±} and (anti)protons in central d+Au collisions, and observe a mass-ordering pattern similar to that seen in heavy-ion collisions. These results are compared with viscous hydrodynamic calculations and measurements from p+Pb at sqrt[s_{NN}]=5.02 TeV. The magnitude of the mass ordering in d+Au is found to be smaller than that in p+Pb collisions, which may indicate smaller radial flow in lower energy d+Au collisions.
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