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The CKM suppressed B(B-s) -> (D)over-bar((s))P, (D)over-bar((s)) V, (D)over-bar((s))*P, (D)over-bar((s))* V decays in the perturbative QCD approach
Zou H(邹浩); Li RH(李润辉); Wang XX(汪晓霞); Lv CD(吕才典); Zou, H; Li, RH; Wang, XX; Lu, CD
2010
发表期刊JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
卷号37期号:1页码:15002
通讯作者[Zou, Hao ; Li, Run-Hui ; Wang, Xiao-Xia ; Lue, Cai-Dian] Inst High Energy Phys, Beijing 100049, Peoples R China ; [Li, Run-Hui] Shandong Univ, Sch Phys, Jinan 250100, Peoples R China ; [Lue, Cai-Dian] Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
文章类型Article
摘要Although the two-body charmed decays B-(s) -> (D) over bar (()((s))*()) P and (D) over bar (()((s))*()) V, where P (V) denotes a light pseudoscalar (vector) meson, are Cabbibo-Kobayashi-Maskawa (CKM) suppressed compared with the B-(s) -> D-(s)(()*()) P and D-(s)(()*()) V decays, they are important in the CKM angle gamma = phi(3) extraction method. We investigated these decays in the perturbative QCD approach to the leading order of m(D)/m(B) and Lambda(QCD)/m(D) expansion. We find that the nonfactorizable emission diagrams and the annihilation diagrams are not negligible in many of these channels. The numerical results show that most channels have branching ratios with an order of 10(-6) or 10(-7). The ratio needed for the CKM angle gamma extraction is estimated as r = |A(B- -> (D) over bar K-0(-))|/|A(B- -> (DK-)-K-0)| = 0.092(-0.003-0.003)(+ 0.012+ 0.003), which is too small for the experiments. Some of the B-(s) -> (D) over bar ((s)) V decays have a very large transversely polarized contribution that can reach 80%.
学科领域Physics
DOI10.1088/0954-3899/37/1/015002
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语种英语
WOS研究方向Physics
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000272638600002
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被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240452
专题理论物理室
作者单位中国科学院高能物理研究所
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Zou H,Li RH,Wang XX,et al. The CKM suppressed B(B-s) -> (D)over-bar((s))P, (D)over-bar((s)) V, (D)over-bar((s))*P, (D)over-bar((s))* V decays in the perturbative QCD approach[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2010,37(1):15002.
APA 邹浩.,李润辉.,汪晓霞.,吕才典.,Zou, H.,...&Lu, CD.(2010).The CKM suppressed B(B-s) -> (D)over-bar((s))P, (D)over-bar((s)) V, (D)over-bar((s))*P, (D)over-bar((s))* V decays in the perturbative QCD approach.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,37(1),15002.
MLA 邹浩,et al."The CKM suppressed B(B-s) -> (D)over-bar((s))P, (D)over-bar((s)) V, (D)over-bar((s))*P, (D)over-bar((s))* V decays in the perturbative QCD approach".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 37.1(2010):15002.
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