Double-lepton polarization asymmetries and branching ratio of the B → γl+l- transition in universal extra dimension

被引：3

作者：

Azizi, K. ^{[1
]}

Pak, N. K. ^{[2
]}

Sirvanli, B. B. ^{[3
]}

机构：

[1] Dogus Univ, Dept Phys, TR-34722 Istanbul, Turkey

[2] Middle E Tech Univ, Dept Phys, TR-06800 Ankara, Turkey

[3] Gazi Univ, Dept Phys, TR-06100 Ankara, Turkey

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2012年 / 02期

关键词：

Rare Decays; Beyond Standard Model; B-Physics; LAMBDA-L(+)L(-) DECAY; RARE; HIERARCHY; LAMBDA(B); IMPACT;

D O I：

10.1007/JHEP02(2012)034

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 study the radiative dileptonic B ->gamma l(+)l(-) transition in the presence of a universal extra dimension in the Applequist-Cheng-Dobrescu model. In particular, using the corresponding form factors calculated via light cone QCD sum rules, we analyze the branching ratio and double lepton polarization asymmetries related to this channel and compare the results with the predictions of the standard model. We show how the results deviate from predictions of the standard model at lower values of the compactification factor (1/R) of extra dimension.

引用

页数：18

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