Bs,d - (B)over-bars,d mixings and Bs,d -> l(+)l(-) decays within the Manohar-Wise model

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Bs,d - (B)over-bars,d mixings and Bs,d -> l(+)l(-) decays within the Manohar-Wise model
	Cheng, XD; Li, XQ; Yang, YD; Zhang, X
刊名	JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
	2015
卷号	42 期号:12 页码:125005
关键词	B-physics rare decays beyond Standard Model
通讯作者	Li, XQ (reprint author), Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.
英文摘要	In this paper, we perform a complete one-loop computation of the short-distance Wilson coefficients for B-s,B-d - (B) over bar (s,d) mixings and B-s,B-d -> l(+)l(-) decays in the Manohar-Wise model, which extends the Standard Model ( SM) scalar sector by a colour-octet and weak-doublet scalar. Based on these calculations, combined constraints on the model parameters are derived from the current flavour data, including the B-s,B-d - (B) over bar (s,d) mixings, B-s,B-d -> mu(+)mu(-), B -> X-s gamma, B -> Kgamma, B -> rho gamma, and Z -> b (b) over bar decays. The future sensitivity to the model is also explored in the observables achievable with 50 fb(-1) of LHCb and 50 ab(-1) of Belle-II data. We find that the Manohar-Wise model could explain the current data, especially when the couplings of the charged colour-octet scalars to quarks are complex, with the resulting chi(2)(min) being significantly smaller than that of the SM. Finally, we investigate correlations among the two isospin asymmetries Delta(Kgamma) and Delta(rho gamma), as well as the averaged time-integrated branching ratios (B) over bar (B-s,B-d -> mu(+)mu(-)); some of them are found to be quite strong and could provide, therefore, further insights into the model, once more precise experimental measurements and theoretical predictions for these observables are available in the future.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
关键词[WOS]	MINIMAL FLAVOR VIOLATION ; PROTON-PROTON COLLISIONS ; MASSIVE COLORED SCALARS ; LEADING QCD CORRECTIONS ; 4-JET FINAL-STATES ; TOP-QUARK MASS ; STANDARD MODEL ; ATLAS DETECTOR ; ROOT-S=7 TEV ; HIGGS-BOSON
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/20759]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Cheng, XD,Li, XQ,Yang, YD,et al. Bs,d - (B)over-bars,d mixings and Bs,d -> l(+)l(-) decays within the Manohar-Wise model[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2015,42(12):125005.
APA	Cheng, XD,Li, XQ,Yang, YD,&Zhang, X.(2015).Bs,d - (B)over-bars,d mixings and Bs,d -> l(+)l(-) decays within the Manohar-Wise model.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,42(12),125005.
MLA	Cheng, XD,et al."Bs,d - (B)over-bars,d mixings and Bs,d -> l(+)l(-) decays within the Manohar-Wise model".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 42.12(2015):125005.