Measurement of charmless B decays to ηK* and ηρ

被引：10

作者：

Wang, C. H. ^{[1
]}

Abe, K.

Adachi, I.

Aihara, H.

Anipko, D.

Aushev, T.

Bakich, A. M.

Barberio, E.

Bay, A.

Belous, K.

Bitenc, U.

Blyth, S.

Bondar, A.

Bozek, A.

Bracko, M.

Chang, P.

Chao, Y.

Chen, A.

Chen, W. T.

Cheon, B. G.

Chistov, R.

Choi, Y.

Choi, Y. K.

Cole, S.

Dalseno, J.

Drutskoy, A.

Eidelman, S.

Fratina, S.

Gabyshev, N.

Garmash, A.

Gershon, T.

Gokhroo, G.

Golob, B.

Ha, H.

Haba, J.

Hara, T.

Hayasaka, K.

Hazumi, M.

Heffernan, D.

Hokuue, T.

Hoshi, Y.

Hou, W.-S.

Iijima, T.

Ikado, K.

Imoto, A.

Inami, K.

Ishikawa, A.

Ishino, H.

Itoh, R.

Iwasaki, M.

机构：

[1] Natl Cent Univ, Miaoli, Taiwan

[2] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[3] Chiba Univ, Chiba, Japan

[4] Univ Cincinnati, Cincinnati, OH 45221 USA

[5] Fu Jen Catholic Univ, Dept Phys, Taipei, Taiwan

[6] Univ Giessen, D-35390 Giessen, Germany

[7] Grad Univ Adv Studies, Hayama, Japan

[8] Gyeongsang Natl Univ, Chinju, South Korea

[9] Hanyang Univ, Seoul 133791, South Korea

[10] Univ Hawaii, Honolulu, HI 96822 USA

[11] Natl Lab High Energy Phys, High Energy Accelerator Res Org, Tsukuba, Ibaraki 305, Japan

[12] Hiroshima Inst Technol, Hiroshima, Japan

[13] Univ Illinois, Urbana, IL 61801 USA

[14] Chinese Acad Sci, Inst High Energy Phys, Beijing 100864, Peoples R China

[15] Inst High Energy Phys, Vienna, Austria

[16] Inst High Energy Phys, Protvino, Russia

[17] Inst Theoret & Expt Phys, Moscow 117259, Russia

[18] J Stefan Inst, Ljubljana, Slovenia

[19] Kanagawa Univ, Yokohama, Kanagawa, Japan

[20] Korea Univ, Seoul 136701, South Korea

[21] Kyoto Univ, Kyoto, Japan

[22] Kyungpook Natl Univ, Taegu 702701, South Korea

[23] Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, Lausanne, Switzerland

[24] Univ Ljubljana, Ljubljana 61000, Slovenia

[25] Univ Maribor, SLO-2000 Maribor, Slovenia

[26] Univ Melbourne, Parkville, Vic 3052, Australia

[27] Nagoya Univ, Nagoya, Aichi, Japan

[28] Nara Womens Univ, Nara 630, Japan

[29] Natl Cent Univ, Chungli 32054, Taiwan

[30] Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan

[31] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[32] Nippon Dent Univ, Niigata, Japan

[33] Niigata Univ, Niigata 95021, Japan

[34] Univ Nova Gorica, Nova Gorica, Italy

[35] Osaka City Univ, Osaka 558, Japan

[36] Osaka Univ, Osaka, Japan

[37] Panjab Univ, Chandigarh 160014, India

[38] Peking Univ, Beijing 100871, Peoples R China

[39] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[40] Princeton Univ, Princeton, NJ 08544 USA

[41] RIKEN, BNL Res Ctr, Upton, NY 11973 USA

[42] Saga Univ, Saga 840, Japan

[43] Univ Sci & Technol China, Hefei 230026, Peoples R China

[44] Seoul Natl Univ, Seoul 151, South Korea

[45] Shinshu Univ, Nagano, Japan

[46] Sungkyunkwan Univ, Suwon 440746, South Korea

[47] Univ Sydney, Sydney, NSW 2006, Australia

[48] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[49] Toho Univ, Funabashi, Chiba 274, Japan

[50] Tohoku Gakuin Univ, Tagajo, Miyagi 985, Japan

来源：

PHYSICAL REVIEW D | 2007年 / 75卷 / 09期

关键词：

D O I：

10.1103/PhysRevD.75.092005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report measurements of branching fractions and CP asymmetries for B ->eta K-* and B ->eta rho decays. These results are obtained from a 414 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We measure the following branching fractions: B(B-0 ->eta K-*0)=(15.2 +/- 1.2 +/- 1.0)x10(-6) and B(B+->eta K*+)=(19.3(-1.9)(+2.0)+/- 1.5)x10(-6), where the first error is statistical and the second systematic. We also find a 2.7 sigma excess in the B+->eta rho(+) mode and measure B(B+->eta rho(+))=(4.1(-1.3)(+1.4)+/- 0.4)x10(-6)< 6.5x10(-6) at 90% confidence level. For B-0 ->eta rho(0) decays, we determine the upper limit B(B-0 ->eta rho(0))< 1.9x10(-6) at 90% confidence level. The partial rate asymmetries are A(CP)(eta K-*0)=0.17 +/- 0.08 +/- 0.01, A(CP)(eta K*+)=0.03 +/- 0.10 +/- 0.01, and A(CP)(eta rho(+))=-0.04(-0.32)(+0.34)+/- 0.01.

引用

页数：10

共 32 条

[1] The Belle detector [J].

Abashian, A ;

Abe, K ;

Abe, R ;

Abe, K ;

Adachi, I ;

Ahn, BS ;

Ahn, HS ;

Aihara, H ;

Akatsu, M ;

Akhmetshin, R ;

Alexander, JP ;

Alimonti, G ;

An, Q ;

Aoki, K ;

Asai, M ;

Asano, Y ;

Aso, T ;

Aulchenko, V ;

Bakich, AM ;

Banas, E ;

Behari, S ;

Behera, PK ;

Beiline, D ;

Bondar, A ;

Bozek, A ;

Browder, TE ;

Casey, BCK ;

Chang, P ;

Chang, YH ;

Chao, Y ;

Chen, HS ;

Chen, HF ;

Chen, YQ ;

Cheon, BG ;

Chidzik, S ;

Choi, S ;

Choi, Y ;

Dneprovsky, L ;

Doi, Y ;

Dong, LY ;

Dragic, J ;

Drutskoy, A ;

Eidelman, S ;

Enomoto, R ;

Everton, CW ;

Fang, F ;

Fujii, H ;

Fujimoto, K ;

Fujita, Y ;

Fukunaga, C .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2002, 479 (01) :117-232

[2] SEARCH FOR HADRONIC B-]U DECAYS [J].

ALBRECHT, H ;

GLASER, R ;

HARDER, G ;

KRUGER, A ;

NILSSON, AW ;

NIPPE, A ;

OEST, T ;

REIDENBACH, M ;

SCHAFER, M ;

SCHMIDTPARZEFALL, W ;

SCHRODER, H ;

SCHULZ, HD ;

SEFKOW, F ;

WURTH, R ;

APPUHN, RD ;

DRESCHER, A ;

HAST, C ;

HERRERA, G ;

KOLANOSKI, H ;

LANGE, A ;

LINDNER, A ;

MANKEL, R ;

SCHECK, H ;

SCHWEDA, G ;

SPAAN, B ;

WALTHER, A ;

WEGENER, D ;

PAULINI, M ;

REIM, K ;

VOLLAND, U ;

WEGENER, H ;

FUNK, W ;

STIEWE, J ;

WERNER, S ;

BALL, S ;

GABRIEL, JC ;

GEYER, C ;

HOLSCHER, A ;

HOFMANN, W ;

HOLZER, B ;

KHAN, S ;

SPENGLER, J ;

CHARLESWORTH, CEK ;

EDWARDS, KW ;

FRISKEN, WR ;

KAPITZA, H ;

KRIEGER, P ;

KUTSCHKE, R ;

MACFARLANE, DB ;

MCLEAN, KW .

PHYSICS LETTERS B, 1990, 241 (02) :278-282

[3]

Ali A, 1998, PHYS REV D, V58, DOI 10.1103/PhysRevD.58.094009

[4] EVIDENCE FOR PENGUIN-DIAGRAM DECAYS - 1ST OBSERVATION OF B -] K-ASTERISK(892)GAMMA [J].

AMMAR, R ;

BALL, S ;

BARINGER, P ;

COPPAGE, D ;

COPTY, N ;

DAVIS, R ;

HANCOCK, N ;

KELLY, M ;

KWAK, N ;

LAM, H ;

KUBOTA, Y ;

LATTERY, M ;

NELSON, JK ;

PATTON, S ;

PERTICONE, D ;

POLING, R ;

SAVINOV, V ;

SCHRENK, S ;

WANG, R ;

ALAM, MS ;

KIM, IJ ;

NEMATI, B ;

ONEILL, JJ ;

SEVERINI, H ;

SUN, CR ;

ZOELLER, MM ;

CRAWFORD, G ;

DAUBENMEIR, M ;

FULTON, R ;

FUJINO, D ;

GAN, KK ;

HONSCHEID, K ;

KAGAN, H ;

KASS, R ;

LEE, J ;

MALCHOW, R ;

MORROW, F ;

SKOVPEN, Y ;

SUNG, M ;

WHITE, C ;

WHITMORE, J ;

WILSON, P ;

BUTLER, F ;

FU, X ;

KALBFLEISCH, G ;

LAMBRECHT, M ;

ROSS, WR ;

SKUBIC, P ;

SNOW, J ;

WANG, PL .

PHYSICAL REVIEW LETTERS, 1993, 71 (05) :674-678

[5] A STUDY OF K-PI+ SCATTERING IN THE REACTION K-P-]K-PI+N AT 11 GEV/C [J].

ASTON, D ;

AWAJI, N ;

BIENZ, T ;

BIRD, F ;

DAMORE, J ;

DUNWOODIE, W ;

ENDORF, R ;

FUJII, K ;

HAYASHII, H ;

IWATA, S ;

JOHNSON, WB ;

KAJIKAWA, R ;

KUNZ, P ;

LEITH, DWGS ;

LEVINSON, L ;

MATSUI, T ;

MEADOWS, BT ;

MIYAMOTO, A ;

NUSSBAUM, M ;

OZAKI, H ;

PAK, CO ;

RATCLIFF, BN ;

SCHULTZ, D ;

SHAPIRO, S ;

SHIMOMURA, T ;

SINERVO, PK ;

SUGIYAMA, A ;

SUZUKI, S ;

TARNOPOLSKY, G ;

TAUCHI, T ;

TOGE, N ;

UKAI, K ;

WAITE, A ;

WILLIAMS, S .

NUCLEAR PHYSICS B, 1988, 296 (03) :493-526

[6] Measurement of branching fractions and charge asymmetries in B decays to an η meson and a K* meson [J].

Aubert, B. ;

Bona, M. ;

Boutigny, D. ;

Couderc, F. ;

Karyotakis, Y. ;

Lees, J. P. ;

Poireau, V. ;

Tisserand, V. ;

Zghiche, A. ;

Grauges, E. ;

Palano, A. ;

Chen, J. C. ;

Qi, N. D. ;

Rong, G. ;

Wang, P. ;

Zhu, Y. S. ;

Eigen, G. ;

Ofte, I. ;

Stugu, B. ;

Abrams, G. S. ;

Battaglia, M. ;

Brown, D. N. ;

Button-Shafer, J. ;

Cahn, R. N. ;

Charles, E. ;

Gill, M. S. ;

Groysman, Y. ;

Jacobsen, R. G. ;

Kadyk, J. A. ;

Kerth, L. T. ;

Kolomensky, Yu. G. ;

Kukartsev, G. ;

Lynch, G. ;

Mir, L. M. ;

Orimoto, T. J. ;

Pripstein, M. ;

Roe, N. A. ;

Ronan, M. T. ;

Wenzel, W. A. ;

del Amo Sanchez, P. ;

Barrett, M. ;

Ford, K. E. ;

Hart, A. J. ;

Harrison, T. J. ;

Hawkes, C. M. ;

Watson, A. T. ;

Held, T. ;

Koch, H. ;

Lewandowski, B. ;

Pelizaeus, M. .

PHYSICAL REVIEW LETTERS, 2006, 97 (20)

[7] Measurement of branching fractions and charge asymmetries in B+ decays to ηπ+, ηK+, ηρ+, and η′π+, and search for B0 decays to ηK0 and ηω -: art. no. 131803 [J].

Aubert, B ;

Barate, R ;

Boutigny, D ;

Couderc, F ;

Karyotakis, Y ;

Lees, JP ;

Poireau, V ;

Tisserand, V ;

Zghiche, A ;

Grauges-Pous, E ;

Palano, A ;

Pappagallo, M ;

Pompili, A ;

Chen, JC ;

Qi, ND ;

Rong, G ;

Wang, P ;

Zhu, YS ;

Eigen, G ;

Ofte, I ;

Stugu, B ;

Abrams, GS ;

Borgland, AW ;

Breon, AB ;

Brown, DN ;

Button-Shafer, J ;

Cahn, RN ;

Charles, E ;

Day, CT ;

Gill, MS ;

Gritsan, AV ;

Groysman, Y ;

Jacobsen, RG ;

Kadel, RW ;

Kadyk, J ;

Kerth, LT ;

Kolomensky, YG ;

Kukartsev, G ;

Lynch, G ;

Mir, LM ;

Oddone, PJ ;

Orimoto, TJ ;

Pripstein, M ;

Roe, NA ;

Ronan, MT ;

Wenzel, WA ;

Barrett, M ;

Ford, KE ;

Harrison, TJ ;

Hart, AJ .

PHYSICAL REVIEW LETTERS, 2005, 95 (13)

[8] Two-body B meson decays to η and η′:: Observation of B→η′K [J].

Behrens, BH ;

Ford, WT ;

Gritsan, A ;

Krieg, H ;

Roy, J ;

Smith, JG ;

Zhao, M ;

Alexander, JP ;

Baker, R ;

Bebek, C ;

Berger, BE ;

Berkelman, K ;

Bloom, K ;

Boisvert, V ;

Cassel, DG ;

Crowcroft, DS ;

Dickson, M ;

von Dombrowski, S ;

Drell, PS ;

Ecklund, KM ;

Ehrlich, R ;

Foland, AD ;

Gaidarev, P ;

Gibbons, L ;

Gittelman, B ;

Gray, SW ;

Hartill, DL ;

Heltsley, BK ;

Hopman, PI ;

Kandaswamy, J ;

Kim, PC ;

Kreinick, DL ;

Lee, T ;

Liu, Y ;

Mistry, NB ;

Ng, CR ;

Nordberg, E ;

Ogg, M ;

Patterson, JR ;

Peterson, D ;

Riley, D ;

Soffer, A ;

Valant-Spaight, B ;

Ward, C ;

Athanas, M ;

Avery, P ;

Jones, CD ;

Lohner, M ;

Patton, S ;

Prescott, C .

PHYSICAL REVIEW LETTERS, 1998, 80 (17) :3710-3714

[9] Flavor-singlet B-decay amplitudes in QCD factorization [J].

Beneke, M ;

Neubert, M .

NUCLEAR PHYSICS B, 2003, 651 (1-2) :225-248

[10]

BRUN R, 1984, DDEE841 CERN

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