Optimizing the basis of B → K*l+l- observables in the full kinematic range

被引：250

作者：

Descotes-Genon, Sebastien ^{[1
]}

Hurth, Tobias ^{[2
,3
]}

Matias, Joaquim ^{[4
]}

Virto, Javier ^{[4
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8627, Phys Theor Lab, F-91405 Orsay, France

[2] Johannes Gutenberg Univ Mainz, PRISMA Cluster Excellence, D-55099 Mainz, Germany

[3] Johannes Gutenberg Univ Mainz, Inst Phys THEP, D-55099 Mainz, Germany

[4] Univ Autonoma Barcelona, E-08193 Barcelona, Catalonia, Spain

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 05期

关键词：

Rare Decays; Beyond Standard Model; B-Physics; Standard Model; FORM-FACTORS; MATRIX; DECAYS; VIOLATION; BREAKING; IMPACT; NNLO;

D O I：

10.1007/JHEP05(2013)137

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss the observables for the B -> K*(-> K pi)l(+)l(-) decay, focusing on both CP-averaged and CP-violating observables at large and low hadronic recoil with special emphasis on their low sensitivity to form-factor uncertainties. We identify an optimal basis of observables that balances theoretical and experimental advantages, which will guide the New Physics searches in the short term. We discuss some advantages of the observables in the basis, and in particular their improved sensitivity to New Physics compared to other observables. We present predictions within the Standard Model for the observables of interest, integrated over the appropriate bins including lepton mass corrections. Finally, we present bounds on the S-wave contribution to the distribution coming from the B -> K-0*l(+)l(-) decay, which will help to establish the systematic error associated to this pollution.

引用

页数：44

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