CP asymmetry, branching ratios, and isospin breaking effects of B→K*γ with the perturbative QCD approach -: art. no. 014013

被引：42

作者：

Matsumori, M ^{[1
]}

Sanda, AI

Keum, YY

机构：

[1] Nagoya Univ, Grad Sch Sci, Dept Phys, Nagoya, Aichi, Japan

[2] Acad Sinica, Inst Phys, Taipei 115, Taiwan

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.72.014013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The main contribution to the radiative B -> K-*gamma mode is from penguin operators which are quantum corrections. Thus, this mode may be useful in the search for physics beyond the standard model. In this paper, we compute the branching ratio, direct CP asymmetry, and isospin breaking effects within the standard model in the framework of perturbative QCD, and discuss how new physics might show up in this decay.

引用

页码：1 / 21

页数：21

共 45 条

[11] Higher twist distribution amplitudes of vector mesons in QCD: Formalism and twist 3 distributions [J].

Ball, P ;

Braun, VM ;

Koike, Y ;

Tanaka, K .

NUCLEAR PHYSICS B, 1998, 529 (1-2) :323-382

[12]

Ball P, 1998, PHYS REV D, V58, DOI 10.1103/PhysRevD.58.094016

[13] 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

[14] FORMFACTOR EFFECTS IN EXCLUSIVE D-DECAYS AND B-DECAY [J].

BAUER, M ;

WIRBEL, M .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1989, 42 (04) :671-678

[15]

BECIREVIC D, 2003, IN PRESS FLAV PHYS C

[16] Systematic approach to exclusive B → Vl+l-, Vγ decays [J].

Beneke, M ;

Feldmann, T ;

Seidel, D .

NUCLEAR PHYSICS B, 2001, 612 (1-2) :25-58

[17]

Bosch S.W., HEPPH0208203

[18] The radiative decays B → Vγ at next-to-leading order in QCD [J].

Bosch, SW ;

Buchalla, G .

NUCLEAR PHYSICS B, 2002, 621 (1-2) :459-478

[19] HARD ELASTIC-SCATTERING IN QCD - LEADING BEHAVIOR [J].

BOTTS, J ;

STERMAN, G .

NUCLEAR PHYSICS B, 1989, 325 (01) :62-100

[20] Weak decays beyond leading logarithms [J].

Buchalla, G ;

Buras, AJ ;

Lautenbacher, ME .

REVIEWS OF MODERN PHYSICS, 1996, 68 (04) :1125-1244

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