|
76
|
Koppenburg P, Abe K, Abe K, Abe T, Adachi I, Aihara H, Akatsu M, Asano Y, Aulchenko V, Aushev T, Bakich AM, Ban Y, Bay A, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chao Y, Chen KF, Cheon BG, Choi Y, Chuvikov A, Cole S, Danilov M, Dash M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fang F, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Haba J, Hayashii H, Hazumi M, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Kang JH, Kang JS, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim JH, Kim SK, Kim TH, Korpar S, Krizan P, Krokovny P, Kumar S, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, MacNaughton J, Majumder G, Mandl F, Matsumoto T, Mikami Y, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mohapatra D, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Parslow N, Peak LS, Piilonen LE, Ronga FJ, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Schneider O, Schwanda C, Schwartz AJ, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Soni N, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamura N, Tanaka M, Taylor GN, Tomura T, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Ushiroda Y, Varner G, Varvell KE, Wang CC, Wang CH, Watanabe M, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yang H, Ying J, Yusa Y, Zhang CC, Zhang ZP, Ziegler T, Zontar D. Inclusive measurement of the photon energy spectrum in b --> sgamma decays. PHYSICAL REVIEW LETTERS 2004; 93:061803. [PMID: 15323621 DOI: 10.1103/physrevlett.93.061803] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2004] [Indexed: 05/24/2023]
Abstract
We report a fully inclusive measurement of the flavor changing neutral current decay b --> sgamma in the energy range 1.8 GeV < or = E*gamma < or = 2.8 GeV, covering 95% of the total spectrum. Using 140 fb(-1), we obtain B(b --> sgamma) = (3.55+/-0.32(+0.30+0.11)(-0.31-0.07)) x 10(-4), where the errors are statistical, systematic, and from theory corrections. We also measure the first and second moments of the photon energy spectrum above 1.8 GeV and obtain (Egamma) = 2.292+/-0.026+/-0.034 GeV and (E2gamma) - (Egamma)2 = 0.0305+/-0.0074+/-0.0063 GeV2, where the errors are statistical and systematic.
Collapse
|
|
77
|
Wang CH, Abe K, Abe K, Abe N, Abe T, Adachi I, Aihara H, Akatsu M, Aso T, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Ban Y, Banerjee S, Blyth S, Bondar A, Bozek A, Bračko M, Browder TE, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Cole S, Danilov M, Dong LY, Eidelman S, Eiges V, Gershon T, Golob B, Haba J, Hastings NC, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim JH, Kim SK, Koppenburg P, Korpar S, Križan P, Krokovny P, Kwon YJ, Leder G, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Matsumoto T, Mitaroff W, Miyabayashi K, Miyata H, Mohapatra D, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Parslow N, Piilonen LE, Poluektov A, Rozanska M, Sagawa H, Sakai Y, Schneider O, Schümann J, Semenov S, Senyo K, Sidorov V, Singh JB, Soni N, Stamen R, Stanič S, Starič M, Sumisawa K, Sumiyoshi T, Suzuki S, Tajima O, Takasaki F, Tamura N, Tanaka M, Teramoto Y, Tomura T, Tsukamoto T, Uehara S, Ueno K, Uglov T, Uno S, Varner G, Wang CC, Wang MZ, Watanabe Y, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Ying J, Yusa Y, Zhang CC, Zhang ZP, Žontar D. Measurement of the branching fractions forB→ωKandB→ωπ. Int J Clin Exp Med 2004. [DOI: 10.1103/physrevd.70.012001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
|
78
|
Abe K, Abe K, Abe N, Abe T, Adachi I, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banerjee S, Bay A, Bedny I, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Cole S, Danilov M, Dragic J, Drutskoy A, Eidelman S, Eiges V, Enari Y, Epifanov D, Flanagan J, Furukawa K, Gabyshev N, Garmash A, Gershon T, Golob B, Haba J, Hara K, Hastings NC, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Iijima T, Ikeda H, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki H, Iwasaki M, Iwasaki Y, Kakuno H, Kamitani T, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Kibayashi A, Kichimi H, Kikutani E, Kim HJ, Kim JH, Kim SK, Kinoshita K, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kumar S, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SH, Lee YJ, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Mandl F, Marlow D, Matsumoto H, Matsumoto T, Matyja A, Michizono S, Mimashi T, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mohapatra D, Moloney GR, Murakami A, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura TT, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Parslow N, Piilonen LE, Root N, Rozanska M, Sagawa H, Sakai Y, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Semenov S, Senyo K, Shibuya H, Shidara T, Shwartz B, Sidorov V, Singh JB, Soni N, Stamen R, Stanic S, Staric M, Sugahara R, Sumisawa K, Sumiyoshi T, Suzuki K, Suzuki S, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Tawada M, Teramoto Y, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang MZ, Watanabe Y, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yang H, Ying J, Yokoyama M, Yoshida M, Yusa Y, Zhang CC, Zhang ZP, Ziegler T, Zontar D, Zürcher D. Observation of large CP violation and evidence for direct CP violation in B0-->pi(+)pi(-) decays. PHYSICAL REVIEW LETTERS 2004; 93:021601. [PMID: 15323897 DOI: 10.1103/physrevlett.93.021601] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2004] [Indexed: 05/24/2023]
Abstract
We report the first observation of CP violation in B0-->pi(+)pi(-) decays based on 152x10(6) gamma (4S)-->BB decays collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We reconstruct a B0-->pi(+)pi(-) CP eigenstate and identify the flavor of the accompanying B meson from its decay products. From the distribution of the time intervals between the two B meson decay points, we obtain A(pipi)=+0.58+/-0.15(stat)+/-0.07(syst) and S(pipi)=-1.00+/-0.21(stat)+/-0.07(syst). We rule out the CP-conserving case, A(pipi)=S(pipi)=0, at a level of 5.2 standard deviations. We also find evidence for direct CP violation with a significance at or greater than 3.2 standard deviations for any S(pipi) value.
Collapse
|
|
79
|
Abe K, Abe K, Abe T, Adachi I, Ahn BS, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banerjee S, Bay A, Bedny I, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Danilov M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Enari Y, Flanagan J, Fukunaga C, Furukawa K, Gabyshev N, Garmash A, Gershon T, Guo R, Haba J, Hagner C, Handa F, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou WS, Huang HC, Iijima T, Ikeda H, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kikutani E, Kim HJ, Kim JH, Kim SK, Kinoshita K, Koppenburg P, Korpar S, Krokovny P, Kulasiri R, Kuzmin A, Kwon YJ, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, Mandl F, Matsumoto T, Matyja A, Michizono S, Mimashi T, Mitaroff W, Miyabayashi K, Miyata H, Mohapatra D, Mori T, Nagamine T, Nagasaka Y, Nakamura TT, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ogawa Y, Ohmi K, Ohnishi Y, Ohshima T, Ohuchi N, Okabe T, Okuno S, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Parslow N, Piilonen LE, Root N, Sagawa H, Saitoh S, Sakai Y, Satapathy M, Satpathy A, Schneider O, Schümann J, Schwartz AJ, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shidara T, Shwartz B, Sidorov V, Singh JB, Soni N, Stanic S, Staric M, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Takasaki F, Tamai K, Tamura N, Tanaka M, Tawada M, Taylor GN, Teramoto Y, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Uno S, Varner G, Wang CC, Wang CH, Wang JG, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yang H, Yoshida M, Yusa Y, Zhang ZP, Zheng Y, Zhilich V, Zontar D. Upper bound on the decay tau-->microgamma from the Belle detector. PHYSICAL REVIEW LETTERS 2004; 92:171802. [PMID: 15169139 DOI: 10.1103/physrevlett.92.171802] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2003] [Indexed: 05/24/2023]
Abstract
We have performed a search for the lepton-flavor-violating decay tau-->microgamma using a data sample of 86.3 fb(-1) accumulated by the Belle detector at KEK. No evidence for a signal is seen, and we set an upper limit for the branching fraction of B(tau-->microgamma)<3.1 x 10(-7) at the 90% confidence level.
Collapse
|
|
80
|
Wang MZ, Abe K, Abe K, Abe T, Adachi I, Aihara H, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Bay A, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chang MC, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chu PH, Chuvikov A, Danilov M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Hara T, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou WS, Huang HC, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Iwasaki Y, Kang JH, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim H, Kim JH, Kim SK, Kinoshita K, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Lesiak T, Limosani A, Lin SW, MacNaughton J, Majumder G, Mandl F, Matsumoto T, Mitaroff W, Miyake H, Miyata H, Nagamine T, Nagasaka Y, Nakano E, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Parslow N, Piilonen LE, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Schneider O, Schwartz AJ, Semenov S, Shibuya H, Sidorov V, Singh JB, Soni N, Stanic S, Staric M, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Uno S, Varner G, Varvell KE, Wang CH, Wang JG, Watanabe Y, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Ying J, Yuan Y, Yusa Y, Zhang CC, Zhang ZP, Zhilich V, Zontar D. Observation of B(+)-->pppi+, B0-->ppK0, and B(+)-->ppK(*+). PHYSICAL REVIEW LETTERS 2004; 92:131801. [PMID: 15089596 DOI: 10.1103/physrevlett.92.131801] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2003] [Indexed: 05/24/2023]
Abstract
We report the first observation of a b-->u type charmless baryonic B decay, B+-->pppi(+), as well as b-->s type B0-->ppK0 and B+-->ppK(*+) decays. The analysis is based on a 78 fb(-1) data sample recorded on the Upsilon(4S) resonance with the Belle detector at KEKB. We find B(B+-->pppi(+))=(3.06(+0.73)(-0.62)+/-0.37)x10(-6), B(B0-->ppK0)=(1.88(+0.77)(-0.60)+/-0.23)x10(-6), and B(B+-->ppK(*+))=(10.3(+3.6+1.3)(-2.8-1.7))x10(-6). We also update B(B+-->ppK+)=(5.66(+0.67)(-0.57)+/-0.62)x10(-6) and present an upper limit on B(B0-->ppK(*0)) at the 90% confidence level. A common feature of the observed decay modes is threshold peaking in baryon pair invariant mass.
Collapse
|
|
81
|
Kakuno H, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banerjee S, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chao Y, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Danilov M, Dash M, Dong LY, Dragic J, Drutskoy A, Eidelman S, Eiges V, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Haba J, Hagner C, Hara T, Hazumi M, Higuchi I, Hinz L, Hokuue T, Hoshi Y, Hou WS, Huang HC, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim HJ, Kim JH, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kwon YJ, Leder G, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, MacNaughton J, Mandl F, Matyja A, Mikami Y, Mitaroff W, Miyabayashi K, Miyata H, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Park CW, Park H, Park KS, Parslow N, Peak LS, Piilonen LE, Sagawa H, Saitoh S, Sakai Y, Schneider O, Schwartz AJ, Semenov S, Senyo K, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Soni N, Stanic S, Staric M, Sugiyama A, Sumiyoshi T, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tanaka M, Teramoto Y, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Uglov T, Unno Y, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe M, Watanabe Y, Yabsley BD, Yamada Y, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yanai H, Yang H, Yuan Y, Yusa Y, Zhang J, Zhang ZP, Zhilich V, Zontar D. Measurement of /V(ub)/ using inclusive B-->X(u)lnu decays with a novel X(u)-reconstruction method. PHYSICAL REVIEW LETTERS 2004; 92:101801. [PMID: 15089194 DOI: 10.1103/physrevlett.92.101801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2003] [Indexed: 05/24/2023]
Abstract
We report the measurement of an inclusive partial branching fraction for charmless semileptonic B decay and the extraction of /V(ub)/. Candidates for B-->X(u)lnu are identified with a novel X(u) reconstruction method based on neutrino reconstruction via missing 4-momentum and a technique called "simulated annealing." Based on 86.9 fb(-1) of data taken with the Belle detector, we obtain DeltaB(B-->X(u)lnu;M(X)<1.7 GeV/c2,q2>8.0 GeV2/c2)=[7.37+/-0.89(stat)+/-1.12(syst)+/-0.55(b-->c)+/-0.24(b-->u)]x10(-4) and determine |V(ub)|=[4.66+/-0.28(stat)+/-0.35(syst)+/-0.17(b-->c)+/-0.08(b-->u)+/-0.58(theory)]x10(-3).
Collapse
|
|
82
|
Mikami Y, Abe K, Abe T, Aihara H, Akemoto M, Asano Y, Aso T, Aushev T, Bahinipati S, Bakich AM, Ban Y, Bay A, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chao Y, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Danilov M, Dong LY, Dragic J, Eidelman S, Eiges V, Fukunaga C, Furukawa K, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Handa F, Hara T, Hayashii H, Hazumi M, Higuchi I, Hinz L, Hokuue T, Hoshi Y, Hou WS, Huang HC, Iijima T, Ikeda H, Inami K, Ishikawa A, Iwasaki H, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawamura N, Kawasaki T, Kichimi H, Kikutani E, Kim HJ, Kim JH, Kinoshita K, Koppenburg P, Krizan P, Krokovny P, Kulasiri R, Kuzmin A, Kwon YJ, Leder G, Lee SH, Lesiak T, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Masuzawa M, Matsumoto T, Matyja A, Mimashi T, Mitaroff W, Miyata H, Moloney GR, Nagamine T, Nagasaka Y, Nakamura TT, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Park KS, Parslow N, Piilonen LE, Sagawa H, Saitoh S, Sakai Y, Schneider O, Schwanda C, Schwartz AJ, Semenov S, Senyo K, Sevior ME, Shibuya H, Shidara T, Shwartz B, Sidorov V, Singh JB, Soni N, Stanic S, Staric M, Sugahara R, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Takasaki F, Tanaka M, Tawada M, Teramoto Y, Tomura T, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uno S, Varner G, Watanabe Y, Yabsley BD, Yamada Y, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yanai H, Yang H, Ying J, Yoshida M, Yusa Y, Zhang ZP, Zhilich V, Zontar D. Measurements of the D(sJ) resonance properties. PHYSICAL REVIEW LETTERS 2004; 92:012002. [PMID: 14753982 DOI: 10.1103/physrevlett.92.012002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2003] [Indexed: 05/24/2023]
Abstract
We report measurements of the properties of the D(+)(sJ)(2317) and D(+)(sJ)(2457) resonances produced in continuum e(+)e(-) annihilation near sqrt[s]=10.6 GeV. The analysis is based on an 86.9 fb(-1) data sample collected with the Belle detector at KEKB. We determine the masses to be M(D(+)(sJ)(2317))=2317.2+/-0.5(stat)+/-0.9(syst) MeV/c(2) and M(D(+)(sJ)(2457))=2456.5+/-1.3(stat)+/-1.3(syst) MeV/c(2). We observe the radiative decay mode D(+)(sJ)(2457)-->D(+)(s)gamma and the dipion decay mode D(+)(sJ)(2457)-->D(+)(s)pi(+)pi(-) and determine their branching fractions. No corresponding decays are observed for the D(sJ)(2317) state. These results are consistent with the spin-parity assignments of 0(+) for the D(sJ)(2317) and 1(+) for the D(sJ)(2457).
Collapse
|
|
83
|
Tanioka Y, Yoshida T, Yagawa T, Saiki Y, Takeo S, Harada T, Okazawa T, Yanai H, Okita K. Matrix metalloproteinase-7 and matrix metalloproteinase-9 are associated with unfavourable prognosis in superficial oesophageal cancer. Br J Cancer 2004; 89:2116-21. [PMID: 14647147 PMCID: PMC2376843 DOI: 10.1038/sj.bjc.6601372] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
If oesophageal carcinoma is detected in the superficial stage, the prognosis is better than for advanced oesophageal carcinoma. But the factors which predict the prognosis and treatment policy remain unclear. Matrix metalloproteinase-7 (MMP-7) and matrix metalloproteinase-9 (MMP-9) have been reported to have close associations with tumour invasion and metastasis. In this study, we retrospectively studied the relations between MMP-7 and MMP-9 expression in immunohistochemistry, clinicopathologic factors, and prognosis in 55 superficial oesophageal carcinomas. MMP-7 and MMP-9 expression occurred in 23.6% and 47.3% of the patients, respectively. MMP-7 expression was significantly correlated with the presence of nodal metastasis (P=0.004). MMP-9 expression was significantly correlated with the depth of tumour invasion (P=0.004), lymphatic permeation (P=0.001), nodal metastasis (P=0.049), and pathologic differentiation grade (P=0.003). By the log-rank test, MMP-7 expression and MMP-9 expression on the invasive front were related to the prognosis. In multivariate analysis, MMP-9 expression on the invasive front was an independent prognostic indicator. The combined expression of MMP-7 and MMP-9 may be a good marker for the degree of malignancy of oesophageal cancer and for the presence of lymphatic metastasis.
Collapse
|
|
84
|
Yoshiyama T, Yanai H, Rhiengtong D, Palittapongarnpim P, Nampaisan O, Supawitkul S, Uthaivorawit W, Mori T. Development of acquired drug resistance in recurrent tuberculosis patients with various previous treatment outcomes. Int J Tuberc Lung Dis 2004; 8:31-8. [PMID: 14974743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
SETTING Chiang Rai province, Northern Thailand. OBJECTIVE To study the probability of acquiring drug resistance to isoniazid (H) and rifampicin (R) on recurrence after treatment success, default and failure, among sputum smear-positive pulmonary tuberculosis (TB) patients treated with standardised short-course chemotherapy. DESIGN Retrospective analysis of registration records of TB patients from May 1996 to December 2000 in Chiang Rai, where routine drug susceptibility testing (DST) is conducted for surveillance purposes. Patients registered twice or more were examined. RESULTS Of 59 cases treated with HRZE/HR who underwent DST at the time of registration, 31 were fully susceptible to H and R at first registration, of whom four acquired drug resistance to H or R. Of 13 cases resistant to H or R at first registration, 11 became multidrug-resistant (MDR). The remaining 15 patients were original MDR cases. Among 28 MDR or H- or R-resistant cases, six reverted from resistant to susceptible. DISCUSSION A high proportion of patients with H- or R-resistant TB became MDR after treatment with 2HRZE/HR. Using this regimen, MDR may increase in a population with a high prevalence of H or R resistance. We are unable to explain why some drug-resistant cases became drug-susceptible. Further investigation is necessary.
Collapse
|
|
85
|
Abe K, Abe K, Abe T, Adachi I, Aihara H, Akai K, Akatsu M, Asano Y, Aso T, Aushev T, Bahinipati S, Bakich AM, Ban Y, Banerjee S, Bedny I, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Danilov M, Dong LY, Eidelman S, Eiges V, Enari Y, Flanagan J, Fukunaga C, Furukawa K, Gabyshev N, Garmash A, Gershon T, Golob B, Guo R, Haba J, Hagner C, Hara K, Hara T, Hastings NC, Hayashii H, Hazumi M, Higuchi I, Higuchi T, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Igarashi Y, Iijima T, Ikeda H, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki H, Iwasaki M, Iwasaki Y, Kamitani T, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawai H, Kawasaki T, Kichimi H, Kikuchi M, Kikutani E, Kim HJ, Kim H, Kim JH, Kim SK, Kinoshita K, Koiso H, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kumar S, Kwon YJ, Lange JS, Leder G, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Mandl F, Marlow D, Masuzawa M, Matsumoto T, Matyja A, Michizono S, Mimashi T, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mohapatra D, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura TT, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohnishi Y, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Peters M, Piilonen LE, Root N, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Satapathy M, Satpathy A, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Semenov S, Senyo K, Sevior ME, Shibata T, Shibuya H, Shidara T, Shwartz B, Sidorov V, Singh JB, Soni N, Stanic S, Sugahara R, Sugi A, Sugimura T, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki K, Suzuki S, Suzuki SY, Takasaki F, Tamura N, Tanaka J, Tanaka M, Tawada M, Teramoto Y, Tomura T, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Unno Y, Uno S, Ushiroda Y, Vahsen SE, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamamoto H, Yamamoto N, Yamashita Y, Yamauchi M, Yanai H, Yang H, Ying J, Yokoyama M, Yoshida M, Yuan Y, Yusa Y, Zhang CC, Zhang J, Zhang ZP, Zheng Y, Zhilich V, Zontar D, Zürcher D. Measurement of time-dependent CP-violating asymmetries in B0-->phiK(0)S, K+K-K0(S), and eta'K0(S) decays. PHYSICAL REVIEW LETTERS 2003; 91:261602. [PMID: 14754038 DOI: 10.1103/physrevlett.91.261602] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2003] [Indexed: 05/24/2023]
Abstract
We present an improved measurement of CP-violation parameters in B0-->phiK(0)(S), K(+)K(-)K(0)(S), and eta(')K(0)(S) decays based on a 140 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters for each of the three modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. We find that the observed CP asymmetry in the B-->phiK(0)(S) decay differs from the standard model (SM) expectation by 3.5 standard deviations, while the other cases are consistent with the SM.
Collapse
|
|
86
|
Lee SH, Suzuki K, Abe K, Abe K, Abe T, Adachi I, Ahn BS, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banerjee S, Bay A, Bedny I, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Chuvikov A, Danilov M, Dong LY, Dragic J, Drutskoy A, Eidelman S, Eiges V, Enari Y, Flanagan J, Fukunaga C, Furukawa K, Gabyshev N, Garmash A, Gershon T, Golob B, Guo R, Haba J, Hagner C, Handa F, Hastings NC, Hayashii H, Hazumi M, Higuchi I, Hokuue T, Hoshi Y, Hou WS, Huang HC, Igarashi Y, Iijima T, Ikeda H, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Iwasaki Y, Kakuno H, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawai H, Kawasaki T, Kichimi H, Kikutani E, Kim HJ, Kim H, Kim JH, Kim SK, Kinoshita K, Koiso H, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Mandl F, Marlow D, Masuzawa M, Matsumoto T, Matyja A, Michizono S, Mimashi T, Mitaroff W, Miyake H, Miyata H, Mohapatra D, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura TT, Nakano E, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohnishi Y, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Park CW, Park H, Park KS, Parslow N, Peak LS, Peters M, Piilonen LE, Root N, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satapathy M, Satpathy A, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shidara T, Shwartz B, Sidorov V, Singh JB, Soni N, Stanic S, Staric M, Sugahara R, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Takasaki F, Tamai K, Tamura N, Tanaka M, Tawada M, Taylor GN, Teramoto Y, Tomura T, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Unno Y, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yang H, Yoshida M, Yusa Y, Zang SL, Zhang J, Zhang ZP, Zheng Y, Zhilich V, Zontar D, Zürcher D. Evidence for B0-->pi0pi0. PHYSICAL REVIEW LETTERS 2003; 91:261801. [PMID: 14754039 DOI: 10.1103/physrevlett.91.261801] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2003] [Indexed: 05/24/2023]
Abstract
We report evidence for the decay B0-->pi(0)pi(0). The analysis is based on a data sample of 152x10(6) BBmacr; pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. We detect a signal for B0-->pi(0)pi(0) with a significance of 3.4 standard deviations, and measure the branching fraction to be [1.7+/-0.6(stat)+/-0.2(syst)]x10(-6).
Collapse
|
|
87
|
Krokovny P, Abe K, Abe K, Abe T, Adachi I, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aso T, Aushev T, Bakich AM, Bedny I, Behera PK, Bizjak I, Bondar A, Bracko M, Browder TE, Casey BCK, Chao Y, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Dong LY, Dragic J, Eidelman S, Eiges V, Enari Y, Flanagan J, Gabyshev N, Garmash A, Gershon T, Golob B, Guo R, Hagner C, Handa F, Hastings NC, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou WS, Huang HC, Igarashi Y, Ikeda H, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Jang HK, Kamitani T, Kang JH, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kikutani E, Kim DW, Kim HJ, Kim H, Kim JH, Kinoshita K, Koiso H, Koppenburg P, Korpar S, Krizan P, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Lesiak T, Limosani A, Lin SW, MacNaughton J, Majumder G, Mandl F, Masuzawa M, Matsumoto T, Michizono S, Mikami Y, Mitaroff W, Miyata H, Mohapatra D, Moloney GR, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura TT, Nakano E, Nakao M, Nakazawa H, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ogawa Y, Ohnishi Y, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Park KS, Parslow N, Piilonen LE, Root N, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satpathy A, Schneider O, Schwanda C, Schwartz AJ, Semenov S, Sevior ME, Shibuya H, Shidara T, Sidorov V, Singh JB, Soni N, Stanic S, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Takasaki F, Tamai K, Tamura N, Tanaka J, Tanaka M, Tawada M, Teramoto Y, Tomura T, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Varvell KE, Wang CH, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamamoto N, Yamashita Y, Yamauchi M, Yanai H, Yuan Y, Zhang CC, Zhang ZP, Zhilich V, Zontar D. Observation of the D(sJ)(2317) and D(sJ)(2457) in B decays. PHYSICAL REVIEW LETTERS 2003; 91:262002. [PMID: 14754042 DOI: 10.1103/physrevlett.91.262002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2003] [Indexed: 05/24/2023]
Abstract
We report the first observation of the B-->Dmacr;D(sJ)(2317) and B-->Dmacr;D(sJ)(2457) decays based on 123.8x10(6) BBmacr; events collected with the Belle detector at KEKB. We observe the D(sJ)(2317) decay to D(s)pi(0) and the D(sJ)(2457) decay to the D(*)(s)pi(0) and D(s)gamma final states. We also set 90% C.L. upper limits for the decays D(sJ)(2317)-->D(*)(s)gamma, D(sJ)(2457)-->D(*)(s)gamma, D(sJ)(2457)-->D(s)pi(0), and D(sJ)(2457)-->D(s)pi(+)pi(-).
Collapse
|
|
88
|
Ishikawa A, Abe K, Abe K, Abe T, Adachi I, Ahn BS, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Bay A, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Danilov M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Enari Y, Flanagan J, Fukunaga C, Funakoshi Y, Furukawa K, Gabyshev N, Garmash A, Gershon T, Golob B, Guo R, Haba J, Hagner C, Handa F, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Iijima T, Inami K, Itoh R, Iwasaki H, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kikutani E, Kim HJ, Kim H, Kim JH, Kim SK, Kinoshita K, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Masuzawa M, Matsumoto T, Matyja A, Michizono S, Mimashi T, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Mohapatra D, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura TT, Nakao M, Nakazawa H, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohnishi Y, Ohshima T, Ohuchi N, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Parslow N, Peak LS, Piilonen LE, Root N, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satapathy M, Satpathy A, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shidara T, Sidorov V, Singh JB, Soni N, Stanic S, Staric M, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Swain SK, Takasaki F, Tamai K, Tamura N, Tanaka M, Tawada M, Taylor GN, Teramoto Y, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Uno S, Varner G, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yang H, Ying J, Yoshida M, Yusa Y, Zhang ZP, Zhilich V, Zontar D. Observation of B-->K*l+l-. PHYSICAL REVIEW LETTERS 2003; 91:261601. [PMID: 14754037 DOI: 10.1103/physrevlett.91.261601] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2003] [Indexed: 05/24/2023]
Abstract
We report the observation of the flavor-changing neutral current decay B-->K(*)l(+)l(-) and an im-proved measurement of the decay B-->Kl(+)l(-), where l represents an electron or a muon, with a data sample of 140 fb(-1) accumulated at the Upsilon(4S) resonance with the Belle detector at KEKB. The results for the branching fractions are B(B-->K(*)l(+)l(-))=(11.5(+2.6)(-2.4)+/-0.8+/-0.2)x10(-7) and B(B-->Kl(+)l(-))=(4.8(+1.0)(-0.9)+/-0.3+/-0.1)x10(-7), where the first error is statistical, the second is systematic and the third is from model dependence.
Collapse
|
|
89
|
Choi SK, Olsen SL, Abe K, Abe T, Adachi I, Ahn BS, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banerjee S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi Y, Choi YK, Danilov M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Flanagan J, Fukunaga C, Furukawa K, Gabyshev N, Gershon T, Golob B, Guler H, Guo R, Hagner C, Handa F, Hara T, Hastings NC, Hayashii H, Hazumi M, Hinz L, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kikutani E, Kim HJ, Kim H, Kim JH, Kim SK, Kinoshita K, Koiso H, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kumar S, Kuzmin A, Lange JS, Leder G, Lee SH, Lesiak T, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Marlow D, Matsumoto T, Michizono S, Mimashi T, Mitaroff W, Miyabayashi K, Miyake H, Mohapatra D, Moloney GR, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura TT, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ogawa Y, Ohmi K, Ohnishi Y, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Ostrowicz W, Ozaki H, Palka H, Park H, Parslow N, Piilonen LE, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satapathy M, Satpathy A, Schneider O, Schwartz AJ, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shidara T, Shwartz B, Sidorov V, Soni N, Stanic S, Staric M, Sugiyama A, Sumiyoshi T, Suzuki S, Takasaki F, Tamai K, Tamura N, Tanaka M, Tawada M, Taylor GN, Teramoto Y, Tomura T, Trabelsi K, Tsukamoto T, Uehara S, Ueno K, Unno Y, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yanai H, Yang H, Ying J, Yoshida M, Zhang CC, Zhang ZP, Zontar D. Observation of a narrow charmoniumlike state in exclusive B+/--->K+/-pi+pi-J/psi decays. PHYSICAL REVIEW LETTERS 2003; 91:262001. [PMID: 14754041 DOI: 10.1103/physrevlett.91.262001] [Citation(s) in RCA: 122] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2003] [Indexed: 05/24/2023]
Abstract
We report the observation of a narrow charmoniumlike state produced in the exclusive decay process B+/--->K+/-pi(+)pi(-)J/psi. This state, which decays into pi(+)pi(-)J/psi, has a mass of 3872.0+/-0.6(stat)+/-0.5(syst) MeV, a value that is very near the M(D0)+M(D(*0)) mass threshold. The results are based on an analysis of 152M B-Bmacr; events collected at the Upsilon(4S) resonance in the Belle detector at the KEKB collider. The signal has a statistical significance that is in excess of 10sigma.
Collapse
|
|
90
|
Huang HC, Abe K, Abe K, Abe T, Adachi I, Aihara H, Akatsu M, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banas E, Bay A, Bedny I, Behera PK, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Casey BCK, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi Y, Choi YK, Danilov M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Golob B, Guo R, Haba J, Handa F, Hara T, Hastings NC, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Igarashi Y, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki Y, Jang HK, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawamura N, Kawasaki T, Kichimi H, Kim DW, Kim HJ, Kim H, Kim JH, Kinoshita K, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar S, Kwon YJ, Leder G, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Marlow D, Matsumoto H, Matsumoto T, Mitaroff W, Miyata H, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nakazawa H, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Park KS, Parslow N, Perroud JP, Peters M, Piilonen LE, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satpathy A, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Seki T, Semenov S, Sevior ME, Shibata T, Shibuya H, Sidorov V, Singh JB, Stanic S, Staric M, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Takahashi T, Takasaki F, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yang H, Yusa Y, Zhang CC, Zhang ZP, Zheng Y, Zhilich V, Zontar D. Evidence for B-->phiphiK. PHYSICAL REVIEW LETTERS 2003; 91:241802. [PMID: 14683108 DOI: 10.1103/physrevlett.91.241802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2003] [Indexed: 05/24/2023]
Abstract
We report evidence for the decay mode B-->phiphiK based on an analysis of 78 fb(-1) of data collected with the Belle detector at KEKB. This is the first example of a b-->sssss transition. The branching fraction for this decay is measured to be B(B+/--->phiphiK+/-)=(2.6(+1.1)(-0.9)+/-0.3)x10(-6) for a phiphi invariant mass below 2.85 GeV/c(2). Results for other related charmonium decay modes are also reported.
Collapse
|
|
91
|
Suggaravetsiri P, Yanai H, Chongsuvivatwong V, Naimpasan O, Akarasewi P. Integrated counseling and screening for tuberculosis and HIV among household contacts of tuberculosis patients in an endemic area of HIV infection: Chiang Rai, Thailand. Int J Tuberc Lung Dis 2003; 7:S424-31. [PMID: 14677833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023] Open
Abstract
SETTING Combined hospital-based and home visit, Chiang Rai, Thailand. OBJECTIVE To describe the results of screening of tuberculosis (TB) and HIV infection among household contacts of TB patients in an area endemic for HIV. DESIGN Consecutive new smear-positive TB patients were interviewed and their household contacts were screened for TB including tuberculin skin test (TST), chest radiography, and sputum examination. Voluntary HIV testing and counseling was also performed. RESULTS Of 499 pulmonary TB index cases, 197 (39.5%) were HIV-positive; 1200 household contacts were screened for TB and 890 (74.2%) agreed to HIV testing. The prevalence of TST induration > or = 10 mm and active TB among household contacts of HIV-positive pulmonary TB cases were 46.2% (225/487) and 2.9% (14/490), and among household contacts of HIV-negative TB cases were 62.1% (438/705) and 4.4% (31/710), respectively. Higher HIV prevalence was found among contacts of HIV-positive TB patients than among household contacts of HIV-negative TB index cases (52/376, 13.8% vs. 13/514, 2.5%) (P < 0.001). Spouses of HIV-positive TB cases had the highest HIV prevalence (36/74, 48.6%). Among the household contacts who were HIV-positive, 9.5% (7/74) had active TB. CONCLUSION Integrated counseling and screening for TB and HIV should be provided for household contacts of TB patients in an HIV endemic area.
Collapse
|
|
92
|
Zhang J, Nakao M, Abe K, Abe K, Abe T, Adachi I, Aihara H, Akatsu M, Asano Y, Aso T, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Ban Y, Banas E, Behera PK, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Casey BCK, Chang P, Chao Y, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Danilov M, Dong LY, Dragic J, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Gordon A, Guo R, Handa F, Hara T, Hastings NC, Hayashii H, Hazumi M, Hinz L, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Igarashi Y, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki M, Iwasaki Y, Jang HK, Kang JH, Kang JS, Kataoka SU, Katayama N, Kawai H, Kawamura N, Kawasaki T, Kim DW, Kim HJ, Kim H, Kim JH, Kim SK, Kinoshita K, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar S, Kuzmin A, Kwon YJ, Leder G, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Marlow D, Matsumoto H, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyata H, Mohapatra D, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Park H, Park KS, Parslow N, Perroud JP, Piilonen LE, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satpathy A, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Semenov S, Senyo K, Seuster R, Sevior ME, Shibata T, Shibuya H, Sidorov V, Singh JB, Stanic S, Staric M, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Swain SK, Takahashi T, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yang H, Yusa Y, Zhang ZP, Zheng Y, Zhilich V, Zontar D, Zürcher D. Observation of B-/+-->rho-/+rho0 decays. PHYSICAL REVIEW LETTERS 2003; 91:221801. [PMID: 14683228 DOI: 10.1103/physrevlett.91.221801] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2003] [Indexed: 05/24/2023]
Abstract
We report the first observation of the charmless vector-vector decay process B-/+-->rho(-/+)rho(0). The measurement uses a 78 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric e(+)e(-) collider operating at the Upsilon(4S) resonance. We obtain a branching fraction of B(B-/+-->rho(-/+)rho(0))=[31.7+/-7.1(stat)+3.8-6.7(syst)]x10(-6). An analysis of the rho helicity-angle distributions gives a longitudinal polarization fraction of Gamma(L)/Gamma=0.95+/-0.11(stat)+/-0.02(syst). We also measure the direct-CP-violating asymmetry A(CP)(B-/+-->rho(-/+)rho(0))=0.00+/-0.22(stat)+/-0.03(syst).
Collapse
|
|
93
|
Chen KF, Bozek A, Abe K, Abe K, Abe T, Adachi I, Aihara H, Akatsu M, Asano Y, Aso T, Bakich AM, Ban Y, Banas E, Bay A, Behera PK, Bizjak I, Bondar A, Bracko M, Brodzicka J, Browder TE, Casey BCK, Chang MC, Chang P, Chao Y, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Danilov M, Dash M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Golob B, Guo R, Haba J, Hagner C, Handa F, Hayashii H, Hazumi M, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Igarashi Y, Iijima T, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki H, Iwasaki Y, Jang HK, Jones M, Kang JH, Kang JS, Katayama N, Kawai H, Kawai H, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim JH, Kim SK, Kinoshita K, Koppenburg P, Korpar S, Krokovny P, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Lesiak T, Li J, Limosani A, Lin SW, MacNaughton J, Mandl F, Marlow D, Matsumoto H, Matsumoto T, Matyja A, Mitaroff W, Miyake H, Miyata H, Mohapatra D, Mori T, Nagamine T, Nakadaira T, Nakano E, Nakao M, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Palka H, Park CW, Park H, Park KS, Parslow N, Peak LS, Peters M, Piilonen LE, Root N, Rozanska M, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satapathy M, Satpathy A, Schneider O, Schümann J, Schwartz AJ, Semenov S, Senyo K, Sevior ME, Sidorov V, Singh JB, Stanic S, Staric M, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Takahashi T, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tomura T, Tsuboyama T, Tsukamoto T, Ueno K, Unno Y, Uno S, Ushiroda Y, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe M, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yeh P, Yokoyama M, Yusa Y, Zhang CC, Zhang J, Zhang ZP, Zheng Y, Zhilich V, Zontar D. Measurement of branching fractions and polarization in B-->phiK(*) decays. PHYSICAL REVIEW LETTERS 2003; 91:201801. [PMID: 14683352 DOI: 10.1103/physrevlett.91.201801] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2003] [Indexed: 05/24/2023]
Abstract
We present the first measurement of decay amplitudes in B-->phiK* and measurements of branching fractions in B-->phiK(*) decays based on 78.1 fb(-1) of data recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- storage ring. The decay amplitudes for the different phiK*0 helicity states are measured from the angular distributions of final state particles in the transversity basis. The longitudinal and transverse complex amplitudes are |A0|2=0.43+/-0.09+/-0.04, |A(perpendicular)|2=0.41+/-0.10+/-0.04, arg((A(parallel))=-2.57+/-0.39+/-0.09, and arg((A(perpendicular))=0.48+/-0.32+/-0.06. The direct CP-violating asymmetries are found to be consistent with zero.
Collapse
|
|
94
|
Yanai H, Morimoto M. Significant association between fluctuations in serum urate and high density lipoprotein cholesterol during exhaustive training. Br J Sports Med 2003; 37:370. [PMID: 12893732 PMCID: PMC1724668 DOI: 10.1136/bjsm.37.4.370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
|
95
|
Wang MZ, Lee YJ, Abe K, Abe K, Abe T, Aihara H, Akatsu M, Asano Y, Aso T, Aushev T, Bakich AM, Ban Y, Banas E, Bay A, Behera PK, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Casey BCK, Chang MC, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi Y, Choi YK, Drutskoy A, Eidelman S, Eiges V, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Golob B, Guo R, Hagner C, Hara T, Hazumi M, Hojo T, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Igaki T, Igarashi Y, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki Y, Jang HK, Kang JH, Kang JS, Katayama N, Kawai H, Kawasaki T, Kichimi H, Kim DW, Kim HJ, Kim JH, Kinoshita K, Kobayashi S, Krokovny P, Kuzmin A, Kwon YJ, Lee SH, Li J, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Matsuishi T, Matsumoto S, Matsumoto T, Mitaroff W, Miyata H, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakano E, Nakao M, Nakazawa H, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Park H, Park KS, Peters M, Piilonen LE, Rozanska M, Rybicki K, Sagawa H, Saitoh S, Sakai Y, Satapathy M, Satpathy A, Schneider O, Schrenk S, Schümann J, Schwartz AJ, Semenov S, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Stanic S, Staric M, Sugi A, Sumiyoshi T, Suzuki SY, Takahashi T, Takasaki F, Tamai K, Tanaka M, Taylor GN, Teramoto Y, Tokuda S, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamashita Y, Yamauchi M, Yanai H, Yeh P, Zhang ZP, Zontar D. Observation of B0-->pLambda(pi)(-). PHYSICAL REVIEW LETTERS 2003; 90:201802. [PMID: 12785883 DOI: 10.1103/physrevlett.90.201802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2003] [Indexed: 05/24/2023]
Abstract
We report the first observation of the charmless hyperonic B decay, B0-->pLambda(pi)(-), using a 78 fb(-1) data sample recorded on the Upsilon(4S) resonance with the Belle detector at KEKB. The measured branching fraction is B(B0-->pLambda(pi)(-))=(3.97(+1.00)(-0.80)+/-0.56)x10(-6). Searches for B0-->pLambda(K)- and pSigma(0)pi(-) yield no significant signals and we set 90% confidence-level upper limits of B(B0-->pLambda(K)-)<8.2x10(-7) and B(B0-->pSigma(0)pi(-))<3.8x10(-6).
Collapse
|
|
96
|
Krokovny P, Abe K, Abe T, Adachi I, Aihara H, Akatsu M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Bay A, Bedny I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Casey BCK, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Danilov M, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Haba J, Hara T, Hasuko K, Hayashii H, Hazumi M, Higuchi I, Higuchi T, Hojo T, Hoshi Y, Hou WS, Huang HC, Igarashi Y, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki Y, Kaneko J, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawai H, Kawakami Y, Kawasaki T, Kichimi H, Kim DW, Kim HJ, Kim HO, Kim H, Kim JH, Kobayashi S, Koppenburg P, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SH, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Matsuishi T, Matsumoto S, Matsumoto T, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nakazawa H, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Peters M, Piilonen LE, Rozanska M, Rybicki K, Sagawa H, Sakai Y, Satapathy M, Satpathy A, Schneider O, Schrenk S, Schümann J, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Stanic S, Staric M, Sugi A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Swain SK, Takahashi T, Takasaki F, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tokuda S, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Unno Y, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yusa Y, Zhang CC, Zhang ZP, Zhilich V, Zontar D. Observation of B0 -->D0K0 and B0 -->D0K*0 decays. PHYSICAL REVIEW LETTERS 2003; 90:141802. [PMID: 12731906 DOI: 10.1103/physrevlett.90.141802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2002] [Indexed: 05/24/2023]
Abstract
We report on a search for B(0)-->D(*0)K(*0) decays based on 85 x 10(6) BB events collected with the Belle detector at KEKB. The B(0)-->D0K(0) and B(0)-->D0K(*0) decays have been observed for the first time with the branching fractions B(B(0)-->D0K(0))=(5.0(+1.3)(-1.2)+/-0.6)x10(-5) and B(B(0)-->D0K(*0))=(4.8(+1.1)(-1.0)+/-0.5)x10(-5). No significant signal has been found for the B(0)-->D(*0)K*0) and B(0)-->D(*0)K(*0) decay modes, and upper limits at 90% C.L. are presented.
Collapse
|
|
97
|
Abe K, Abe K, Abe N, Abe R, Abe T, Ahn BS, Aihara H, Akatsu M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Behera PK, Bizjak I, Bondar A, Bozek A, Bracko M, Browder TE, Casey BCK, Chang MC, Chang P, Chao Y, Cheon BG, Chistov R, Choi Y, Choi YK, Danilov M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fang F, Fujii H, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Golob B, Gordon A, Guo R, Haba J, Hara T, Harada Y, Hayashii H, Hazumi M, Heenan EM, Higuchi I, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou SR, Hou WS, Hsu SC, Huang HC, Igaki T, Igarashi Y, Iijima T, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki H, Iwasaki Y, Jang HK, Kang JH, Kang JS, Katayama N, Kawakami Y, Kawamura N, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim HO, Kim H, Kim SK, Kim TH, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar S, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SH, Li J, Limosani A, Liventsev D, Lu RS, MacNaughton J, Majumder G, Mandl F, Marlow D, Matsuishi T, Matsumoto S, Matsumoto T, Mitaroff W, Miyabayashi K, Miyabayashi Y, Miyake H, Miyata H, Moloney GR, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nam JW, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Peak LS, Perroud JP, Peters M, Piilonen LE, Rodriguez JL, Ronga FJ, Root N, Rozanska M, Rybicki K, Sagawa H, Saitoh S, Sakai Y, Satapathy M, Satpathy A, Schneider O, Schrenk S, Schwanda C, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Stanic S, Staric M, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Takahashi T, Takasaki F, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tokuda S, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Unno Y, Uno S, Ushiroda Y, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yeh P, Yuan Y, Yusa Y, Zhang J, Zhang ZP, Zheng Y, Zhilich V, Zontar D. Studies of the decay B+/- -->D(CP)K+/-. PHYSICAL REVIEW LETTERS 2003; 90:131803. [PMID: 12689276 DOI: 10.1103/physrevlett.90.131803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2002] [Indexed: 05/24/2023]
Abstract
We report studies of the Cabibbo-suppressed decay B+/--->D(CP)K+/-, where D(CP) denotes CP eigenstates of the D0-D0; system. The analysis is based on a 29.1 fb(-1) sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. We measure ratios of branching fractions, relative to Cabibbo-favored B+/--->D(CP)pi(+/-), of B(B--->D1K-)/B(B--->D1pi(-))=0.125+/-0.036+/-0.010 and B(B--->D2K-)/B(B--->D2pi(-))=0.119+/-0.028+/-0.006; the index 1 (2) denotes the CP=+1 (-1) eigenstate. We also extract the partial rate asymmetries for B+/--->D(CP)K+/-, finding A(1)=0.29+/-0.26+/-0.05 and A(2)=-0.22+/-0.24+/-0.04.
Collapse
|
|
98
|
Gabyshev N, Kichimi H, Abe K, Abe K, Abe R, Abe T, Adachi I, Aihara H, Akatsu M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banas E, Bay A, Bedny I, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Casey BCK, Chang MC, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Danilov M, Dong LY, Dragic J, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fang F, Fukunaga C, Garmash A, Gershon T, Golob B, Haba J, Hagner C, Handa F, Hara T, Hasuko K, Hayashii H, Hazumi M, Higuchi I, Hinz L, Hojo T, Hokuue T, Hoshi Y, Hou WS, Hsiung YB, Huang HC, Igaki T, Igarashi Y, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki Y, Jang HK, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawai H, Kawasaki T, Kim DW, Kim HJ, Kim HO, Kim H, Kim JH, Kim SK, Kinoshita K, Kobayashi S, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SH, Li J, Lin SW, Liventsev D, Lu RS, MacNaughton J, Majumder G, Mandl F, Matsuishi T, Matsumoto S, Matsumoto T, Mitaroff W, Miyabayashi Y, Miyake H, Miyata H, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Park KS, Peak LS, Perroud JP, Piilonen LE, Rozanska M, Rybicki K, Sagawa H, Saitoh S, Sakai Y, Sarangi TR, Satapathy M, Satpathy A, Schneider O, Schrenk S, Schümann J, Schwartz AJ, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Soni N, Stanic S, Staric M, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Swain SK, Takahashi T, Takasaki F, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tokuda S, Tomura T, Tsuboyama T, Tsukamoto T, Uehara S, Unno Y, Uno S, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamashita Y, Yamauchi M, Yanai H, Yuan Y, Yusa Y, Zhang CC, Zhang ZP, Zheng Y, Zhilich V, Zontar D. Observation of the decay B0-->lambda+cp. PHYSICAL REVIEW LETTERS 2003; 90:121802. [PMID: 12688867 DOI: 10.1103/physrevlett.90.121802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2002] [Indexed: 05/24/2023]
Abstract
We report the measurement of the charmed baryonic decay B(0)-->Lambda(+)(c)p with a branching fraction of (2.19(+0.56)(-0.49)+/-0.32+/-0.57)x10(-5) and a statistical significance of 5.8 sigma. The errors are statistical, systematic, and the error of the Lambda(+)(c)-->pK(-)pi(+) decay branching fraction. This is the first observation of a two-body baryonic B decay. The analysis is based on 78.2 fb(-1) of data accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) collider.
Collapse
|
|
99
|
Fang F, Hojo T, Abe K, Abe K, Abe T, Adachi I, Aihara H, Akatsu M, Asano Y, Aso T, Aulchenko V, Bakich AM, Ban Y, Banas E, Bay A, Behera PK, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Casey BCK, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Danilov M, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Golob B, Hara T, Hastings NC, Hayashii H, Hazumi M, Heenan EM, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou WS, Huang HC, Igaki T, Igarashi Y, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki H, Iwasaki Y, Jang HK, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawakami Y, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim HO, Kim H, Kim SK, Kinoshita K, Kobayashi S, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kwon YJ, Lange JS, Leder G, Lee SH, Li J, Liventsev D, Lu RS, MacNaughton J, Mandl F, Matsumoto S, Matsumoto T, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nakazawa H, Nam JW, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ozaki H, Pakhlov P, Park CW, Park H, Park KS, Perroud JP, Peters M, Piilonen LE, Ronga FJ, Root N, Rozanska M, Rybicki K, Sagawa H, Saitoh S, Sakai Y, Sakamoto H, Satapathy M, Schneider O, Schrenk S, Schwanda C, Semenov S, Senyo K, Seuster R, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Soni N, Stanic S, Staric M, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki K, Suzuki S, Takahashi T, Takasaki F, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tokuda S, Tomura T, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Uno S, Ushiroda Y, Vahsen SE, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yashima J, Yokoyama M, Yuan Y, Yusa Y, Zhang CC, Zhang J, Zhang ZP, Zhilich V, Zontar D. Measurement of branching fractions for B-->eta(c)K(*) decays. PHYSICAL REVIEW LETTERS 2003; 90:071801. [PMID: 12633223 DOI: 10.1103/physrevlett.90.071801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2002] [Indexed: 05/24/2023]
Abstract
We report measurements of branching fractions for charged and neutral B-->eta(c)K decays where the eta(c) meson is reconstructed in the K(0)(S)K+/-pi(-/+), K+K-pi(0), K(*0)K-pi(+), and pp; decay channels. The neutral B0 channel is a CP eigenstate and can be used to measure the CP violation parameter sin(2phi(1). We also report the first observation of the B0-->eta(c)K(*0) mode. The results are based on an analysis of 29.1 fb(-1) of data collected by the Belle detector at KEKB.
Collapse
|
|
100
|
Kaneko J, Abe K, Abe K, Abe T, Adachi I, Ahn BS, Aihara H, Akatsu M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Ban Y, Banas E, Bartel W, Bay A, Behera PK, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Casey BCK, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi Y, Choi YK, Danilov M, Dong LY, Eidelman S, Eiges V, Enari Y, Everton CW, Fang F, Fujii H, Fukunaga C, Gabyshev N, Garmash A, Gershon T, Guo R, Haba J, Handa F, Hara T, Harada Y, Hastings NC, Hayashii H, Hazumi M, Heenan EM, Higuchi I, Higuchi T, Hinz L, Hojo T, Hoshi Y, Hou WS, Huang HC, Igaki T, Igarashi Y, Iijima T, Inami K, Ishikawa A, Ishino H, Itoh R, Iwasaki H, Iwasaki Y, Jang HK, Kang JH, Kang JS, Katayama N, Kawai H, Kawakami Y, Kawamura N, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim HO, Kim H, Kim SK, Kinoshita K, Kobayashi S, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kumar S, Kwon YJ, Lange JS, Leder G, Lee SH, Li J, Limosani A, Lu RS, MacNaughton J, Majumder G, Mandl F, Marlow D, Matsumoto S, Matsumoto T, Mitaroff W, Miyabayashi K, Miyabayashi Y, Miyake H, Moloney GR, Mori T, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nam JW, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Park KS, Perroud JP, Peters M, Piilonen LE, Root N, Rybicki K, Sagawa H, Sakai Y, Sakamoto H, Satapathy M, Satpathy A, Schneider O, Schrenk S, Schwanda C, Semenov S, Senyo K, Seuster R, Shibuya H, Shwartz B, Sidorov V, Singh JB, Soni N, Stanic S, Sumisawa K, Sumiyoshi T, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Tajima H, Takahashi T, Takasaki F, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tokuda S, Tomoto M, Tomura T, Trabelsi K, Trischuk W, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Uno S, Ushiroda Y, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaguchi A, Yamashita Y, Yamauchi M, Yanai H, Yashima J, Yokoyama M, Yuan Y, Yusa Y, Zhang CC, Zhang J, Zhang ZP, Zheng Y, Zhilich V, Zontar D. Measurement of the electroweak penguin process B-->X(s)l+l-. PHYSICAL REVIEW LETTERS 2003; 90:021801. [PMID: 12570535 DOI: 10.1103/physrevlett.90.021801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2002] [Indexed: 05/24/2023]
Abstract
We report the first measurement of the branching fraction for the inclusive decay B-->X(s)l(+)l(-), where l is either an electron or a muon, and X(s) is a hadronic recoil system that contains an s quark. We analyzed a data sample of 65.4 x 10(6) B meson pairs collected with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We find B(B-->X(s)l(+)l(-))=[6.1 +/-1.4(stat) +1.4-1.1(syst)] x 10(-6) for dilepton masses greater than 0.2 GeV/c(2).
Collapse
|