Measurement of the electroweak penguin process B→Xsl;+l- -: art. no. 021801

被引：68

作者：

Kaneko, J ^{[1
]}

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

机构：

[1] Tokyo Inst Technol, Tokyo 152, Japan

[2] Aomori Univ, Aomori, Japan

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

[4] Chiba Univ, Chiba, Japan

[5] Chuo Univ, Tokyo 112, Japan

[6] Univ Cincinnati, Cincinnati, OH USA

[7] DESY, Hamburg, Germany

[8] Goethe Univ Frankfurt, D-6000 Frankfurt, Germany

[9] Univ Hawaii, Honolulu, HI 96822 USA

[10] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan

[11] Hiroshima Inst Technol, Hiroshima, Japan

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

[13] Inst High Energy Phys, Vienna, Austria

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

[15] Jozef Stefan Inst, Ljubljana, Slovenia

[16] Kanagawa Univ, Yokohama, Kanagawa, Japan

[17] Korea Univ, Seoul 136701, South Korea

[18] Kyoto Univ, Kyoto, Japan

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

[20] Univ Lausanne, Inst Phys Hautes Energies, Lausanne, Switzerland

[21] Univ Ljubljana, Ljubljana, Slovenia

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

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

[24] Nagoya Univ, Nagoya, Aichi, Japan

[25] Nara Womens Univ, Nara 630, Japan

[26] Natl Kaohsiung Normal Univ, Kaohsiung, Taiwan

[27] Natl Lien Ho Inst Technol, Miaoli, Taiwan

[28] Natl Taiwan Univ, Taipei 10764, Taiwan

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

[30] Nihon Dent Coll, Niigata, Japan

[31] Niigata Univ, Niigata, Japan

[32] Osaka City Univ, Osaka 558, Japan

[33] Osaka Univ, Osaka, Japan

[34] Panjab Univ, Chandigarh 160014, India

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

[36] Princeton Univ, Princeton, NJ 08544 USA

[37] RIKEN, BNL Res Ctr, Brookhaven, NY USA

[38] Saga Univ, Saga 840, Japan

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

[40] Seoul Natl Univ, Seoul, South Korea

[41] Sungkyunkwan Univ, Suwon 440746, South Korea

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

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

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

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

[46] Univ Tokyo, Tokyo, Japan

[47] Tokyo Metropolitan Univ, Tokyo 158, Japan

[48] Tokyo Univ Agr & Technol, Tokyo, Japan

[49] Toyama Natl Coll Maritime Technol, Toyama, Japan

[50] Univ Tsukuba, Tsukuba, Ibaraki 305, Japan

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.90.021801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurement of the branching fraction for the inclusive decay B-->X(s)l(+)l(-), where . 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 65.4x10(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)]x10(-6) for dilepton masses greater than 0.2 GeV/c(2).

引用

页数：6

共 24 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] Observation of the decay B→Kl+l- -: art. no. 021801 [J].

Abe, K ;

Abe, R ;

Adachi, I ;

Ahn, BS ;

Aihara, H ;

Akatsu, M ;

Asano, Y ;

Aso, T ;

Aulchenko, V ;

Aushev, T ;

Bakich, AM ;

Banas, E ;

Behari, S ;

Behera, PK ;

Bondar, A ;

Bozek, A ;

Browder, TE ;

Casey, BCK ;

Chang, P ;

Chao, Y ;

Cheon, BG ;

Chistov, R ;

Choi, SK ;

Choi, Y ;

Dong, LY ;

Drutskoy, A ;

Eidelman, S ;

Enari, Y ;

Fang, F ;

Fujii, H ;

Fukunaga, C ;

Fukushima, M ;

Gabyshev, N ;

Garmash, A ;

Gershon, T ;

Gordon, A ;

Gotow, K ;

Guo, R ;

Haba, J ;

Hamasaki, H ;

Hanagaki, K ;

Handa, F ;

Hara, K ;

Hara, T ;

Hastings, NC ;

Hayashii, H ;

Hazumi, M ;

Heenan, EM ;

Higuchi, I .

PHYSICAL REVIEW LETTERS, 2002, 88 (02) :6

[3] A measurement of the branching fraction for the inclusive B→Xsγ decays with the Belle detector [J].

Abe, K ;

Adachi, I ;

Ahn, BS ;

Aihara, H ;

Akatsu, M ;

Alimonti, G ;

Aoki, K ;

Asai, K ;

Asano, Y ;

Aso, T ;

Aulchenko, V ;

Aushev, T ;

Bakich, AM ;

Banas, E ;

Bartel, W ;

Behari, S ;

Behera, PK ;

Beiline, D ;

Bondar, A ;

Bozek, A ;

Browder, TE ;

Casey, BCK ;

Chang, P ;

Chao, Y ;

Cheon, BG ;

Choi, SK ;

Choi, Y ;

Doi, Y ;

Dragic, J ;

Drutskoy, A ;

Eidelman, S ;

Enari, Y ;

Enomoto, R ;

Fang, F ;

Fujii, H ;

Fukunaga, C ;

Fukushima, M ;

Garmash, A ;

Gordon, A ;

Gotow, K ;

Guler, H ;

Guo, R ;

Haba, J ;

Hamasaki, H ;

Hanagaki, K ;

Handa, F ;

Hara, K ;

Hara, T ;

Haruyama, T .

PHYSICS LETTERS B, 2001, 511 (2-4) :151-158

[4] SEARCH FOR B-]S-GAMMA IN EXCLUSIVE DECAYS OF B-MESONS [J].

ALBRECHT, H ;

GLASER, R ;

HARDER, G ;

KRUGER, A ;

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 ;

ORR, RS .

PHYSICS LETTERS B, 1989, 229 (03) :304-308

[5]

Ali A, 2000, PHYS REV D, V61, DOI 10.1103/PhysRevD.61.074024

[6] Improved model-independent analysis of semileptonic and radiative rare B decays -: art. no. 034002 [J].

Ali, A ;

Lunghi, E ;

Greub, C ;

Hiller, G .

PHYSICAL REVIEW D, 2002, 66 (03)

[7] Power corrections in the decay rate and distributions in B->X(s)l(+)l(-) in the standard model [J].

Ali, A ;

Hiller, G ;

Handoko, LT ;

Morozumi, T .

PHYSICAL REVIEW D, 1997, 55 (07) :4105-4128

[8] Two-loop virtual corrections to B → XSl+l- in the standard model [J].

Asatryan, HH ;

Asatrian, HM ;

Greub, C ;

Walker, M .

PHYSICS LETTERS B, 2001, 507 (1-4) :162-172

[9]

AUBERT B, HEPEX0207082

[10] A measurement of the inclusive b→sγ branching ratio [J].

Barate, R ;

Buskulic, D ;

Decamp, D ;

Ghez, P ;

Goy, C ;

Lees, JP ;

Lucotte, A ;

Merle, E ;

Minard, MN ;

Nief, JY ;

Pietrzyk, B ;

Alemany, R ;

Boix, G ;

Casado, MP ;

Chmeissani, M ;

Crespo, JM ;

Delfino, M ;

Fernandez, E ;

Fernandez-Bosman, M ;

Garrido, L ;

Grauges, E ;

Juste, A ;

Martinez, M ;

Merino, G ;

Miquel, R ;

Mir, LM ;

Park, IC ;

Pascual, A ;

Perlas, JA ;

Riu, I ;

Sanchez, F ;

Colaleo, A ;

Creanza, D ;

de Palma, M ;

Gelao, G ;

Iaselli, G ;

Maggi, G ;

Maggi, M ;

Nuzzo, S ;

Ranieri, A ;

Raso, G ;

Ruggieri, F ;

Selvaggi, G ;

Silvestris, L ;

Tempesta, P ;

Tricomi, A ;

Zito, G ;

Huang, X ;

Lin, J ;

Ouyang, Q .

PHYSICS LETTERS B, 1998, 429 (1-2) :169-187

← 1 2 3 →