Observation of B→K±π0 and B→K0π0 and evidence for B→π+π-

被引：100

作者：

Cronin-Hennessy, D

Kwon, Y

Lyon, AL

Thorndike, EH

Jessop, CP

Marsiske, H

Perl, ML

Savinov, V

Ugolini, D

Zhou, X

Coan, TE

Fadeyev, V

Maravin, Y

Narsky, I

Stroynowski, R

Ye, J

Wlodek, T

Artuso, M

Ayad, R

Boulahouache, C

Bukin, K

Dambasuren, E

Karamnov, S

Kopp, S

Majumder, G

Moneti, GC

Mountain, R

Schuh, S

Skwarnicki, T

Stone, S

Viehhauser, G

Wang, JC

Wolf, A

Wu, J

Csorna, SE

Danko, I

McLean, KW

Márka, S

Xu, Z

Godang, R

Kinoshita, K

Lai, IC

Schrenk, S

Bonvicini, G

Cinabro, D

Perera, LP

Zhou, GJ

Eigen, G

Lipeles, E

Schmidtler, M

机构：

[1] Univ Rochester, Rochester, NY 14627 USA

[2] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA

[3] So Methodist Univ, Dallas, TX 75275 USA

[4] Syracuse Univ, Syracuse, NY 13244 USA

[5] Vanderbilt Univ, Nashville, TN 37235 USA

[6] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[7] Wayne State Univ, Detroit, MI 48202 USA

[8] CALTECH, Pasadena, CA 91125 USA

[9] Univ Calif San Diego, La Jolla, CA 92093 USA

[10] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[11] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[12] Univ Colorado, Boulder, CO 80309 USA

[13] Cornell Univ, Ithaca, NY 14853 USA

[14] Univ Florida, Gainesville, FL 32611 USA

[15] Harvard Univ, Cambridge, MA 02138 USA

[16] Univ Hawaii Manoa, Honolulu, HI 96822 USA

[17] Univ Illinois, Urbana, IL 61801 USA

[18] Carleton Univ, Ottawa, ON K1S 5B6, Canada

[19] McGill Univ, Montreal, PQ H3A 2T8, Canada

[20] Ithaca Coll, Ithaca, NY 14850 USA

[21] Univ Kansas, Lawrence, KS 66045 USA

[22] Univ Minnesota, Minneapolis, MN 55455 USA

[23] SUNY Albany, Albany, NY 12222 USA

[24] Ohio State Univ, Columbus, OH 43210 USA

[25] Univ Oklahoma, Norman, OK 73019 USA

[26] Purdue Univ, W Lafayette, IN 47907 USA

[27] Yonsei Univ, Seoul 120749, South Korea

[28] Univ Cincinnati, Cincinnati, OH 45221 USA

[29] MIT, Cambridge, MA 02139 USA

[30] Univ Texas Pan Amer, Edinburg, TX 78539 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.85.515

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have studied charmless hadronic decays of B mesons into two-body final states with kaons and pions and observe three new processes with the following branching fractions: B(B --> pi(+)pi(-)) = (4.3(-1.4)(+1.6) +/- 0.5) X 10(-6), B(B --> K(0)pi(0)) = (14.6(-5.1)(-3.3)(+5.9)(+2.1)) X 10(-6), and B(B --> K(+/-)pi(0)) = (11.6(-2.7)(-1.3)(+3.0)(+1.4)) X 10(-6). We also update our previous measurements for the decays B --> K(+/-)pi(+/-) and B+/- --> K(0)pi(+/-).

引用

页码：515 / 519

页数：5

共 31 条

[1] Observation of direct CP violation in KS,L → ππ decays [J].

Alavi-Harati, A ;

Albuquerque, IF ;

Alexopoulos, T ;

Arenton, M ;

Arisaka, K ;

Averitte, S ;

Barker, AR ;

Bellantoni, L ;

Bellavance, A ;

Belz, J ;

Ben-David, R ;

Bergman, DR ;

Blucher, E ;

Bock, GJ ;

Bown, C ;

Bright, S ;

Cheu, E ;

Childress, S ;

Coleman, R ;

Corcoran, MD ;

Corti, G ;

Cox, B ;

Crisler, MB ;

Erwin, AR ;

Ford, R ;

Glazov, A ;

Golossanov, A ;

Graham, G ;

Graham, J ;

Hagan, K ;

Halkiadakis, E ;

Hanagaki, K ;

Hidaka, S ;

Hsiung, YB ;

Jejer, V ;

Jennings, J ;

Jensen, DA ;

Kessler, R ;

Kobrak, HGE ;

LaDue, J ;

Lath, A ;

Ledovskoy, A ;

McBride, PL ;

McManus, AP ;

Mikelsons, P ;

Monnier, E ;

Nakaya, T ;

Nauenberg, U ;

Nelson, KS ;

Nguyen, H .

PHYSICAL REVIEW LETTERS, 1999, 83 (01) :22-27

[2]

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

[3] Electroweak radiative corrections to polarized Moller scattering asymmetries [J].

Czarnecki, A ;

Marciano, WJ .

PHYSICAL REVIEW D, 1996, 53 (03) :1066-1072

[4]

BRUN R, DDEE841 CERN

[5]

BURAS AJ, HEPPH9905437

[6]

Charles J, 1999, PHYS REV D, V59, DOI 10.1103/PhysRevD.59.054007

[7] CHARMLESS NONLEPTONIC RARE DECAYS OF B-MESONS [J].

CHAU, LL ;

CHENG, HY ;

SZE, WK ;

YAO, H ;

TSENG, B .

PHYSICAL REVIEW D, 1991, 43 (07) :2176-2192

[8]

Cheng HY, 1998, PHYS REV D, V58, DOI 10.1103/PhysRevD.58.094005

[9] PENGUIN CONTRIBUTIONS TO RATES AND CP ASYMMETRIES IN NONLEPTONIC B-DECAYS - POSSIBLE EXPERIMENTAL PROCEDURES AND ESTIMATES [J].

DEANDREA, A ;

DIBARTOLOMEO, N ;

GATTO, R ;

FERUGLIO, F ;

NARDULLI, G .

PHYSICS LETTERS B, 1994, 320 (1-2) :170-180

[10] 2 BODY NONLEPTONIC DECAYS OF B AND BS MESONS [J].

DEANDREA, A ;

DIBARTOLOMEO, N ;

GATTO, R ;

NARDULLI, G .

PHYSICS LETTERS B, 1993, 318 (03) :549-558

← 1 2 3 4 →