B decays into a scalar/tensor meson: in pursuit of determining the CKM angle γ

被引：1

作者：

Wang, Wei ^{[1
]}

机构：

[1] Deutsch Elekt Synchrotron DESY, D-22607 Hamburg, Germany

来源：

QCD@WORK 2012: INTERNATIONAL WORKSHOP ON QUANTUM CHROMODYNAMICS: THEORY AND EXPERIMENT | 2012年 / 1492卷

关键词：

B decays; CP violation; CP-VIOLATION;

D O I：

10.1063/1.4763503

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

In this work, I suggest a new way for determining the CKM angle gamma via B decays into a scalar/tensor meson without any hadronic uncertainty. The proposed idea makes profits of the two triangles formed by the B+ -> (D-0, (D) over bar (0), D-CP(0))K-0(2)(*+/-) (1430) decay amplitudes. The advantages in it are large CP asymmetries and the avoidance of the use of doubly Cabibbo-suppressed D decays. Branching ratios of B-+/- -> (D-0, (D) over bar (0), D-CP(0))K-0(2)(*+/-) (1430) are estimated to have the order 10(-6) - 10(-5) and therefore measurable on the ongoing LHCb experiment and future experimental facilities. The usefulness of other related channels, for instance the neutral B-d decays into DK0(2)*(1430) and B-s -> (D-0, (D) over bar (0))M (M = f(0)(980), f(0)(1370), f(2)'(1525), f(1)(1285), f(1)(1420), h(1)(1180)), the B -> D(+)a(0,2)(+/-) for the extraction of gamma + 2 beta and the B-s -> (DK0,2*+/-)-K--/+ to access gamma + 2 beta(s), is also discussed in brevity.

引用

页码：117 / 122

页数：6

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