Possible large direct CP violations in charmless B meson decays:: Summary report on the PQCD method -: art. no. 054009

被引：85

作者：

Keum, YY ^{[1
]}

Sanda, AI ^{[1
]}

机构：

[1] Nagoya Univ, EKEN LAB, Dept Phys, Nagoya, Aichi 4648602, Japan

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.67.054009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the perturbative QCD approach for the exclusive two body B meson decays to light mesons. We briefly review its ingredients and some important theoretical issues on the factorization approach. We show numerical results which are compatible with present experimental data for charmless B meson decays. In particular, we predict the possibility of large direct CP violation effects in B-0-->pi(+)pi(-) [(23+/-7%)] and B-0-->K(+)pi(-) [(-17+/-5%)]. In the last section we investigate two methods to determine the weak phases phi(2) and phi(3) from B-->pipi,Kpi processes. We obtain bounds on phi(2) and phi(3) from present experimental measurements.

引用

页数：9

共 57 条

[1] Observation of large CP violation in the neutral B meson system -: art. no. 091802 [J].

Abe, K ;

Abe, R ;

Adachi, I ;

Ahn, BS ;

Aihara, H ;

Akatsu, M ;

Alimonti, G ;

Asai, K ;

Asai, M ;

Asano, Y ;

Aso, T ;

Aulchenko, V ;

Aushev, T ;

Bakich, AM ;

Banas, E ;

Behari, S ;

Behara, PK ;

Beiline, D ;

Bondar, A ;

Bozek, A ;

Browder, TE ;

Casey, BCK ;

Chang, P ;

Chao, Y ;

Chen, KF ;

Cheon, BG ;

Chistov, R ;

Choi, SK ;

Choi, Y ;

Dong, LY ;

Dragic, J ;

Drutskoy, A ;

Eidelman, S ;

Eiges, V ;

Enari, Y ;

Enomoto, R ;

Everton, CW ;

Fang, F ;

Fujii, H ;

Fukunaga, C ;

Fukushima, M ;

Gabyshev, N ;

Garmash, A ;

Gershon, TJ ;

Gordon, A ;

Gotow, K ;

Guler, H ;

Guo, R ;

Haba, J .

PHYSICAL REVIEW LETTERS, 2001, 87 (09)

[2]

ABE K, 20028 BELL

[3]

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

[4] Measurements of branching fractions and CP-violating asymmetries in B0→π+π-, K+ π-, K+K- decays -: art. no. 281802 [J].

Aubert, B ;

Boutigny, D ;

Gaillard, JM ;

Hicheur, A ;

Karyotakis, Y ;

Lees, JP ;

Robbe, P ;

Tisserand, V ;

Zghiche, A ;

Palano, A ;

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 ;

Gill, MS ;

Gritsan, AV ;

Groysman, Y ;

Jacobsen, RG ;

Kadel, RW ;

Kadyk, J ;

Kerth, LT ;

Kolomensky, YG ;

Kral, JF ;

LeClerc, C ;

Levi, ME ;

Lynch, G ;

Mir, LM ;

Oddone, PJ ;

Orimoto, TJ ;

Pripstein, M ;

Roe, NA ;

Romosan, A ;

Ronan, MT ;

Shelkov, VG ;

Telnov, AV ;

Wenzel, WA ;

Harrison, TJ ;

Hawkes, CM .

PHYSICAL REVIEW LETTERS, 2002, 89 (28) :281802/1-281802/7

[5]

Aubert B, 2001, PHYS REV LETT, V87, DOI [10.1103/PhysRevLett.87.241801, 10.1103/PhysRevLett.87.151801]

[6] Theoretical update of pseudoscalar meson distribution amplitudes of higher twist: the nonsinglet case [J].

Ball, P .

JOURNAL OF HIGH ENERGY PHYSICS, 1999, (01) :XX-19

[7]

Ball P, 1998, J HIGH ENERGY PHYS

[8] CP NONINVARIANCE IN THE DECAYS OF HEAVY CHARGED QUARK SYSTEMS [J].

BANDER, M ;

SILVERMAN, D ;

SONI, A .

PHYSICAL REVIEW LETTERS, 1979, 43 (04) :242-245

[9]

BARTOLDUS R, 2002, FPCP WORKSH

[10] EXCLUSIVE NONLEPTONIC DECAYS OF D-MESONS, DS-MESONS AND B-MESONS [J].

BAUER, M ;

STECH, B ;

WIRBEL, M .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (01) :103-115

← 1 2 3 4 5 6 →