Supersymmetric contribution to B -> rho K and B -> pi K* decays in SCET

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题名:	Supersymmetric contribution to B -> rho K and B -> pi K* decays in SCET
作者:	Faisel,G;Delepine,D;Shalaby,M
贡献者:	物理學系
关键词:	QCD FACTORIZATION;SPECTATOR SCATTERING;PERTURBATIVE QCD;EPSILON'/EPSILON;AMPLITUDES;MSSM;NLO
日期:	2011
上传时间:	2012-06-11 10:53:00 (UTC+8)
出版者:	國立中央大學
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.
關聯:	PHYSICS LETTERS B
显示于类别:	[物理學系] 期刊論文

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