Prospects for the measurement of the unitarity triangle angle γ from B0→DK+π- decays

被引：28
|
作者：
Gershon, Tim [1 ]
Williams, Mike [2 ]
机构：
[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England
来源：
PHYSICAL REVIEW D | 2009年 / 80卷 / 09期
基金：
英国科学技术设施理事会;
关键词：
CP-VIOLATION;
D O I：
10.1103/PhysRevD.80.092002
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The potential for a precise measurement of the unitarity triangle angle gamma in future experiments from the decay B-0 -> DK*0 is well known. It has recently been suggested that the sensitivity can be significantly enhanced by analyzing the B-0 -> DK+pi(-) Dalitz plot to extract amplitudes relative to those of the flavor-specific decay B-0 -> D2*-K+. An extension to this method which includes the case where the neutral D meson is reconstructed in suppressed final states is presented. The sensitivity to gamma is estimated using this method and compared to that obtained using the B-0 -> DK*0 decay alone. Experimental effects, such as background contamination, are also considered. This approach appears to be a highly attractive addition to the family of methods that can be used to determine gamma.
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页数：12
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