HADRONIC PENGUIN-B DECAYS IN THE STANDARD AND THE 2-HIGGS-DOUBLET MODELS

被引：141

作者：

DESHPANDE, NG

HE, XG

机构：

[1] Institute of Theoretical Science, University of Oregon, Eugene

来源：

PHYSICS LETTERS B | 1994年 / 336卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(94)90560-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study in next-to-leading order QCD hadronic penguin B decays in the Standard and two-Higgs-doublet models. Although the gluonic penguin dominates, we find the electroweak contribution non-negligible. In the Standard Model, the branching ratio for B --> X(s)phi is predicted to be in the range (0.6-2) x 10(-4). The ranges of branching ratios for B --> Kphi, B --> K* phi, and B(s) --> phiphi are (0.4-2) x 10(-5), (0.2-1) x 10(-5), and (0.15-0.5) x 10(-5), respectively. The contribution from the charged Higgs boson in two Higgs doublet models depend on cot beta, and can be as large as 40%.

引用

收藏

页码：471 / 476

页数：6

相关论文

共 39 条

[1]

ABE F, FERMILABPUB94097E PR

[2] IMPLICATIONS OF B-]S-GAMMA DECAY MEASUREMENTS IN TESTING THE HIGGS SECTOR OF THE MINIMUM SUPERSYMMETRIC STANDARD MODEL [J].

BARGER, V ;

BERGER, MS ;

PHILLIPS, RJN .

PHYSICAL REVIEW LETTERS, 1993, 70 (10) :1368-1371

[3] NEW CONSTRAINTS ON THE CHARGED HIGGS SECTOR IN 2-HIGGS-DOUBLET MODELS [J].

BARGER, V ;

HEWETT, JL ;

PHILLIPS, RJN .

PHYSICAL REVIEW D, 1990, 41 (11) :3421-3441

[4] 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

[5] QCD ENHANCEMENT OF RADIATIVE B-DECAYS [J].

BERTOLINI, S ;

BORZUMATI, F ;

MASIERO, A .

PHYSICAL REVIEW LETTERS, 1987, 59 (02) :180-182

[6]

BETHKE S, 1992, 25 P INT C HIGH EN P

[7] RENORMALIZATION-GROUP ANALYSIS OF CHARGED HIGGS EFFECTS IN EPSILON'-EPSILON FOR A HEAVY TOP QUARK [J].

BUCHALLA, G ;

BURAS, AJ ;

HARLANDER, MK ;

LAUTENBACHER, ME ;

SALAZAR, C .

NUCLEAR PHYSICS B, 1991, 355 (02) :305-329

[8] 2-LOOP ANOMALOUS DIMENSION MATRIX FOR DELTA-S=1 WEAK NONLEPTONIC DECAYS .1. O[ALPHA(S)(2)] [J].

BURAS, AJ ;

JAMIN, M ;

LAUTENBACHER, ME ;

WEISZ, PH .

NUCLEAR PHYSICS B, 1993, 400 (1-3) :37-74

[9] EFFECTIVE-HAMILTONIANS FOR DELTA-S=1 AND DELTA-B=1 NONLEPTONIC DECAYS BEYOND THE LEADING LOGARITHMIC APPROXIMATION [J].

BURAS, AJ ;

JAMIN, M ;

LAUTENBACHER, ME ;

WEISZ, PH .

NUCLEAR PHYSICS B, 1992, 370 (01) :69-104

[10] 2-LOOP ANOMALOUS DIMENSION MATRIX FOR DELTA-S=1 WEAK NONLEPTONIC DECAYS .2. O[ALPHA-ALPHA(S)] [J].

BURAS, AJ ;

JAMIN, M ;

LAUTENBACHER, ME .

NUCLEAR PHYSICS B, 1993, 400 (1-3) :75-102

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