Supersymmetric contribution to B → ρK and B → πK* decays in SCET

被引：2

作者：

Faisel, Gaber ^{[1
,2
,3
]}

Delepine, David ^{[4
]}

Shalaby, M. ^{[5
]}

机构：

[1] Natl Cent Univ, Dept Phys, Chungli 32054, Taiwan

[2] Natl Cent Univ, Ctr Math & Theoret Phys, Chungli 32054, Taiwan

[3] Modern Univ Informat & Technol, Egyptian Ctr Theoret Phys, Cairo, Egypt

[4] Univ Guanajuato, Dept Fis, DCI, Guanajuato 37150, Mexico

[5] Ain Shams Univ, Fac Sci, Cairo 11566, Egypt

来源：

PHYSICS LETTERS B | 2011年 / 705卷 / 04期

关键词：

QCD FACTORIZATION; SPECTATOR SCATTERING; PERTURBATIVE QCD; EPSILON'/EPSILON; AMPLITUDES; MSSM; NLO;

D O I：

10.1016/j.physletb.2011.10.041

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We analyze the supersymmetric contributions to the direct CP asymmetries of the decays B -> pi K* and B -> rho K within Soft Collinear Effective Theory. We extend the Standard Model analysis of these asymmetries to include the next leading order QCD corrections. We find that, even with QCD correction, the Standard Model predictions cannot accommodate the direct CP asymmetries in these decay modes. Using Mass Insertion Approximation (MIA), we show that non-minimal flavor SUSY contributions mediated by gluino exchange can enhance the CP asymmetries significantly and thus can accommodate the experimental results. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：361 / 368

页数：8

共 50 条

[1] New Physics contribution to B → ρK, πK* decays
Delepine, D.
Faisel, Gaber
Shalaby, M.
XIII MEXICAN WORKSHOP ON PARTICLES AND FIELDS, 2012, 378
[2] CP asymmetries in B → Kπ, K*π, ρK decays
Gronau, Michael
Pirjol, Dan
Zupan, Jure
PHYSICAL REVIEW D, 2010, 81 (09):
[3] B → Kη, Kη′ Decays
Pham, T. N.
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2009, 186 : 391 - 394
[4] Supersymmetric contributions to (B)over-bars → φπ0 and (B)over-bars → φρ0 decays in SCET
Faisel, Gaber
JOURNAL OF HIGH ENERGY PHYSICS, 2012, (08):
[5] New physics contribution to B → Kπ decays in soft collinear effective theory
Huitu, K.
Khalil, S.
PHYSICAL REVIEW D, 2010, 81 (09):
[6] Searching for new physics with B → Kπ decays
Ciuchini, M.
Franco, E.
Martinelli, G.
Pierini, M.
Silvestrini, L.
PHYSICS LETTERS B, 2009, 674 (03) : 197 - 203
[7] B → XcJ K decays revisited
Beneke, M.
Vernazza, L.
NUCLEAR PHYSICS B, 2009, 811 (1-2) : 155 - 181
[8] Measuring γ in B → Kππ decays
Imbeault, Maxime
Rey-Le Lorier, Nicolas
London, David
PHYSICAL REVIEW D, 2011, 84 (03):
[9] Testing QCDF with phase determination in B → Kπ,Kρ, and K*π decays
Pham, T. N.
NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS, 2017, 282 : 68 - 72
[10] Final state interactions in B± → K+K-K± decays
Furman, A.
Kaminski, R.
Lesniak, L.
Zenczykowski, P.
PHYSICS LETTERS B, 2011, 699 (1-2) : 102 - 107

← 1 2 3 4 5 →