Revisiting the B -> pi rho, pi omega decays in the perturbative QCD approach beyond the leading order

	Revisiting the B -> pi rho, pi omega decays in the perturbative QCD approach beyond the leading order
	Zhou R(周锐); Gao XD(高祥东); 吕才典;Rui, Z; Gao, X; Lu, CD
刊名	EUROPEAN PHYSICAL JOURNAL C
	2012
卷号	72 期号:3 页码:1923
英文摘要	We calculate the branching ratios and CP asymmetries of the B -> pi rho, pi omega decays in the perturbative QCD factorization approach up to the next-to-leading-order contributions. We find that the next-to-leading-order contributions can interfere with the leading-order part constructively or destructively for different decay modes. Our numerical results have a much better agreement with current available data than previous leading-order calculations, e. g., the next-to-leading-order corrections enhance the B-0 -> pi(0)rho(0) branching ratios by a factor 2.5, which is helpful to narrow the gaps between theoretic predictions and experimental data. We also update the direct CP-violation parameters, the mixing-induced CP-violation parameters of these modes, which show a better agreement with experimental data than many of the other approaches.
学科主题	Physics
收录类别	SCI
WOS记录号	WOS:000302540000037
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224452]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Zhou R,Gao XD,吕才典；Rui, Z,et al. Revisiting the B -> pi rho, pi omega decays in the perturbative QCD approach beyond the leading order[J]. EUROPEAN PHYSICAL JOURNAL C,2012,72(3):1923.
APA	周锐,高祥东,吕才典；Rui, Z,Gao, X,&Lu, CD.(2012).Revisiting the B -> pi rho, pi omega decays in the perturbative QCD approach beyond the leading order.EUROPEAN PHYSICAL JOURNAL C,72(3),1923.
MLA	周锐,et al."Revisiting the B -> pi rho, pi omega decays in the perturbative QCD approach beyond the leading order".EUROPEAN PHYSICAL JOURNAL C 72.3(2012):1923.