Supersymmetric contributions to Bs→K－π+ decay

XU Yuan-Guo; WANG Ru-Min; YANG Ya-Dong

doi:10.1088/1674-1137/34/11/003

Chinese Physics C> 2010, Vol. 34> Issue(11) : 1687-1692 DOI: 10.1088/1674-1137/34/11/003

Supersymmetric contributions to B_s→K^－π⁺ decay

Abstract
HTML
Reference
Related

PDF

Abstract：
Recently, the CDF Collaboration has measured the branching fraction and time-integrated direct CP asymmetry of B__s→K^－π⁺ decay. The branching ratio is lower than the previous predictions based on QCD factorization. The experimental results favor a large CP asymmetry in B_s→K^－π⁺ decay while the standard model prediction is very small. We compute the supersymmetry contributions to B_s→K_－π⁺ decay using the mass insertion method, and find that the LR and RL mass insertions could suppress this branching ratio and increase this direct CP asymmetry well in line with the experimental data.

[1]	Zhen-Bin Cao . Supersymmetric AdS₄ vacua in N=3 gauged supergravity. Chinese Physics C, 2018, 42(5): 053104. doi: 10.1088/1674-1137/42/5/053104
[2]	Bao-Xi Sun , Fang-Yong Dong , Jing-Long Pang . Study of X(5568) in a unitary coupled-channel approximationof BK and B_sπ. Chinese Physics C, 2017, 41(7): 074104. doi: 10.1088/1674-1137/41/7/074104
[3]	Virendrasinh Kher , Nayneshkumar Devlani , Ajay Kumar Rai . Spectroscopy, decay properties and Regge trajectories of the B and B_s mesons. Chinese Physics C, 2017, 41(9): 093101. doi: 10.1088/1674-1137/41/9/093101
[4]	HUANG Chao-Guang , LI Lin . Possible supersymmetric kinematics. Chinese Physics C, 2015, 39(9): 093103. doi: 10.1088/1674-1137/39/9/093103
[5]	FU Zi-Wen . Bubble contributions to scalar correlators with mixed actions. Chinese Physics C, 2014, 38(6): 063102. doi: 10.1088/1674-1137/38/6/063102
[6]	WANG Wen-Yu , XIONG Zhao-Hua , ZHOU Si-Hong . Can contributions to B_s→l⁺l^-γ from the magnetic-penguin operator with real photons in the standard model be neglected?. Chinese Physics C, 2014, 38(6): 063103. doi: 10.1088/1674-1137/38/6/063103
[7]	ZHANG Zhi-Qing , WANG Shi-Jian , ZHANG Li-Ying . Branching ratio and CP asymmetry of B_s→K₀^*(1430)η^(') decays in the PQCD approach. Chinese Physics C, 2013, 37(4): 043103. doi: 10.1088/1674-1137/37/4/043103
[8]	XU Yuan-Guo , ZHOU Li-Hai , LI Bing-Zhong , WANG Ru-Min . Analysis of B_s→φμ⁺μ^- decay within supersymmetry. Chinese Physics C, 2013, 37(6): 063104. doi: 10.1088/1674-1137/37/6/063104
[9]	CHANG Xue , LIU Chun , MA Feng-Cai , YANG Shuo . Supersymmetric extension of the minimal dark matter model. Chinese Physics C, 2012, 36(9): 810-817. doi: 10.1088/1674-1137/36/9/003
[10]	WANG Shuai-Wei , CHANG Qin , HUANG Jin-Shu , . Fourth generation effects in B_s → π^-K⁺ decay. Chinese Physics C, 2011, 35(9): 808-811. doi: 10.1088/1674-1137/35/9/003
[11]	WANG Shuai-Wei , YANG Xing-Qiang , LI Gen-Quan , HUANG Jin-Shu . B_s,d→μ⁺μ^－ decays in a flavor changing Z′ model. Chinese Physics C, 2010, 34(5): 539-542. doi: 10.1088/1674-1137/34/5/004
[12]	ZHANG Zhi-Qing , LIU Xin , XIAO Zhen-Jun . B→πη^(′),η^(′)η^(′)decays and NLO contributions in the pQCD approach. Chinese Physics C, 2009, 33(9): 722-728. doi: 10.1088/1674-1137/33/9/003
[13]	WAN Meng , TIAN Wei-Zhao , CHEN Hong . Contributions of qqqq q components to nucleon spin structure. Chinese Physics C, 2009, 33(S1): 18-20. doi: 10.1088/1674-1137/33/S1/006
[14]	QIN Xiu-Mei , HUO Wu-Jun , YANG Xiao-Fang . New physical effects on the decay B_s→γγ in the technicolor model. Chinese Physics C, 2009, 33(4): 252-255. doi: 10.1088/1674-1137/33/4/003
[15]	ZHAO Shu-Min , ZHANG Yin-Jie , YAN Yu-Li , LIU Li-Quan , WU Li-Ping . Study of semileptonic decays B_s→D_s1(2536)lν and B_s→D_s2(2573) lν in the CQM model. Chinese Physics C, 2008, 32(8): 603-607. doi: 10.1088/1674-1137/32/8/002
[16]	DING Wen-Bo , LIU Guang-Zhou . Condensations of K^－ and K⁰ in Neutron Star Matter. Chinese Physics C, 2006, 30(S2): 249-251.
[17]	LU Gong-Ru , SU Fang , YANG Ya-Dong , HAO Hong-Jun . Probe the Strength of Annihilation In B_S→π^＋π^－ Decays Within QCD Factorization. Chinese Physics C, 2006, 30(6): 501-506.
[18]	CHEN Jun-Xiao , HOU Zhao-Yu , LI Ying , . Branching ratio of rare decay B⁰(B_s)→γνν. Chinese Physics C, 2006, 30(4): 289-293.
[19]	LI QingFeng , LI ZhuXia , SUN XiuQuan . Influence of the K^－ Mesons Absorption to Their Production in the Heavy-Ion Collisions. Chinese Physics C, 2000, 24(1): 49-59.
[20]	ZHOU Bao-Sen , HE Ze-Jun . Influnce of the Particle Distribution on the Rate of S-Quark and K^－ -Meson Production. Chinese Physics C, 1991, 15(11): 1049-1052.

Access

Get Citation

XU Yuan-Guo, WANG Ru-Min and YANG Ya-Dong. Supersymmetric contributions to B_s→K^－π⁺ decay[J]. Chinese Physics C, 2010, 34(11): 1687-1692. doi: 10.1088/1674-1137/34/11/003

XU Yuan-Guo, WANG Ru-Min and YANG Ya-Dong. Supersymmetric contributions to B_s→K^－π⁺ decay[J]. Chinese Physics C, 2010, 34(11): 1687-1692. doi: 10.1088/1674-1137/34/11/003 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2009-12-31
Revised: 2010-01-21

Article Metric

Article Views(2839)
PDF Downloads(500)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Supersymmetric contributions to B_s→K^－π⁺ decay

Corresponding author: YANG Ya-Dong,

Received Date: 2009-12-31
Accepted Date: 2010-01-21
Available Online: 2010-11-05

Abstract:

Recently, the CDF Collaboration has measured the branching fraction and time-integrated direct CP asymmetry of B__s→K^－π⁺ decay. The branching ratio is lower than the previous predictions based on QCD factorization. The experimental results favor a large CP asymmetry in B_s→K^－π⁺ decay while the standard model prediction is very small. We compute the supersymmetry contributions to B_s→K_－π⁺ decay using the mass insertion method, and find that the LR and RL mass insertions could suppress this branching ratio and increase this direct CP asymmetry well in line with the experimental data.