Studying new physics amplitudes in charmless Bs decays

被引：9

作者：

Fleischer, Robert ^{[1
]}

Gronau, Michael ^{[1
,2
]}

机构：

[1] CERN, Div Theory, Dept Phys, CH-1211 Geneva 23, Switzerland

[2] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

来源：

PHYSICS LETTERS B | 2008年 / 660卷 / 03期

基金：

以色列科学基金会;

关键词：

CP ASYMMETRIES; U-SPIN; PI-K; VIOLATION; GAMMA; BETA;

D O I：

10.1016/j.physletb.2007.12.028

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A method based on flavour SU(3) is proposed for identifying and extracting New Physics (NP) amplitudes in charmless Delta S = 1 B-s decays using time-dependent CP asymmetries in these decays and in flavour SU(3) related AS = 0 decays. For illustration, we assume a hierarchy, similar to 1 : lambda : lambda(2) (lambda = 0.2), between a dominant Delta S = 1 penguin amplitude, a NP amplitude and a Standard Model amplitude with weak phase gamma. An uncertainty from SU(3) breaking corrections, reduced by using ratios of hadronic amplitudes, is further suppressed by a factor;. We discuss examples for pairs of decays into two neutral vector mesons, B-s --> phi phi, B-s --> phi(K) over bar*(0) and B-s --> K*(0)(K) over bar*(0), B-0 --> K*(0)(K) over bar*(0), where the magnitude of the NP amplitude, its weak and strong phases can be determined. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：212 / 216

页数：5

共 53 条

[1] Evidence for Bs0→φφ decay and measurements of branching ratio and ACP for B+→φK+ -: art. no. 031801 [J].

Acosta, D ;

Adelman, J ;

Affolder, T ;

Akimoto, T ;

Albrow, MG ;

Ambrose, D ;

Amerio, S ;

Amidei, D ;

Anastassov, A ;

Anikeev, K ;

Annovi, A ;

Antos, J ;

Aoki, M ;

Apollinari, G ;

Arisawa, T ;

Arguin, JF ;

Artikov, A ;

Ashmanskas, W ;

Attal, A ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bachacou, H ;

Badgett, W ;

Barbaro-Galtieri, A ;

Barker, GJ ;

Barnes, VE ;

Barnett, BA ;

Baroiant, S ;

Bauer, G ;

Bedeschi, F ;

Behari, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Belloni, A ;

Ben-Haim, E ;

Benjamin, D ;

Beretvas, A ;

Bhatti, A ;

Binkley, M ;

Bisello, D ;

Bishai, M ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Bocci, A ;

Bodek, A ;

Bolla, G .

PHYSICAL REVIEW LETTERS, 2005, 95 (03)

[2] Charmless nonleptonic Bs decays to PP, PV, and VV final states in the perturbative QCD approach [J].

Ali, Ahmed ;

Kramer, Gustav .

PHYSICAL REVIEW D, 2007, 76 (07)

[3]

AMATO S, 2007, 2007047 LHCB

[4]

[Anonymous], COMMUNICATION

[5]

AUBERT B, HEPEX07082248

[6]

BARACCHINI E, 2007, JHEP, V708

[7]

BARBERIO E, ARXIV07043575

[8] CP violation in B decays and supersymmetry [J].

Barbieri, R ;

Strumia, A .

NUCLEAR PHYSICS B, 1997, 508 (1-2) :3-16

[9] Corrections to sin(2β) from CP asymmetries in B0 → (π0, ρ0, η, η′, φ)KS decays [J].

Beneke, M .

PHYSICS LETTERS B, 2005, 620 (3-4) :143-150

[10] Branching fractions, polarisation and asymmetries of B→V V decays [J].

Beneke, Martin ;

Rohrer, Johannes ;

Yang, Deshan .

NUCLEAR PHYSICS B, 2007, 774 :64-101

← 1 2 3 4 5 6 →