Pure annihilation type decays B0→Ds- K2*+ and Bs→Da2 in perturbative QCD approach

ZOU Zhi-Tian; ZHOU Rui; L&Uuml; Cai-Dian

doi:10.1088/1674-1137/37/1/013103

Chinese Physics C> 2013, Vol. 37> Issue(1) : 013103 DOI: 10.1088/1674-1137/37/1/013103

Pure annihilation type decays B⁰→D_s^- K₂^*+ and B_s→Da₂ in perturbative QCD approach

Abstract
HTML
Reference
Related

PDF

Abstract：
We calculate the branching ratios of pure annihilation type decays B⁰→D_s^- K₂^*+ and B_s→Da₂ using the perturbative QCD approach based on k_T factorization. The branching ratios are predicted to be (60.6_{-16.5-10.4-2.1}^{+17.3+4.3+3.2} )× 10^-6 for B⁰→D_s^- K₂^*+, (1.1_-0.4-0.2-0.1^+0.4+0.1+0.1)×10^-6 for B_s→D⁰a₂⁰ and (2.3_-0.8-0.4-0.1^+0.8+0.2+0.1)×10^-6 for B_s→D^-a₂⁺. They are large enough to be measured in the ongoing experiment. Due to the shortage of contributions from penguin operators, there are no direct CP asymmetries for these decays in the Standard Model. We also derive simple relations among these decay channels to reduce theoretical uncertainties for the experiments to test the accuracy of theory and search of new physics signal.

References

[1]

Bauer C W, Pirjol D, Rothstein I Z et al. Phys. Rev. D, 2004, 70: 054015[2] Keum Y Y, LI H N, Sand A I. Phys. Rev. D, 2001, 63: 054008; HONG Bi-Hai, L Cai-Dian. Sci. China G, 2006, 49: 357[3] L Cai-Dian, Ukai K. Eur. Phys. J. C, 2003, 28: 305[4] LI Run-Hui, L Cai-Dian, ZOU Hao. Phys. Rev. D, 2008, 78: 014018[5] ZOU Hao, LI Run-Hui, WANG Xiao-Xia et al. J. Phys. G, 2010, 37: 015002[6] Nakamura K et al. (Particle Data Group). J Phys. G, 2010, 37: 075021; Krokovny P et al. (Belle collaboration). Phys. Rev. Lett., 2002, 89: 231804; Das A et al. (Belle collaboration). Phys. Rev. D, 2010, 82: 051103; Aubert B et al. (BABAR collaboration). arXiv:hep-ex/0207053[7] LI Ying, L Cai-Dian, XIAO Zhen-Jun et al. Phys. Rev. D, 2004, 70: 034009[8] Ali A, Kuamer G, LI Ying et al. Phys. Rev. D, 2007, 76: 074018[9] Keum Y Y, LI H N, Sanda A I. Phys. Lett. B, 2001,504: 6; Phys. Rev. D, 2001, 63: 054008[10] L Cai-Dian, Ukai K, YANG Mao-Zhi. Phys. Rev. D, 2001, 63: 074009[11] Buchalla G, Buras A J, Lautenbacher M E. Rev. Mod. Phys., 1996, 68: 1125; Buras A J. arXiv:hep-ph/9806471[0511239] DU Dong-Sheng, LI Ying, L Cai-Dian. Chin. Phys. Lett., 2006, 23: 2038[12] LIU Xin, XIAO Zhen-Jun, L Cai-Dian. Phys. Rev. D, 2010, 81: 014002[13] LI H N. Phys. Rev. D, 2002, 66: 094010[14] LI H N, Tseng B. Phys. Rev. D, 1998, 57: 443[15] L Cai-Dian, YANG Mao-Zhi. Eur. Phys. J. C, 2002, 23: 275[16] L Cai-Dian, YANG Mao-Zhi. Eur. Phys. J. C, 2003, 28: 515[17] LI H N. Phys. Lett. B, 2005, 622: 63[18] LI H N, Mishima S. Phys. Rev. D, 2005, 71: 054025[19] LI Run-Hui, L Cai-Dian, Sanda A I et al. Phys. Rev. D, 2010, 81: 034006[20] WANG Wei. Phys. Rev. D, 2011, 83: 014008[21] CHENG H Y, Koike Y, YANG Kwei-Chou. Phys. Rev. D, 2010, 82: 054019[22] CHENG H Y, YANG Kwei-Chou. Phys. Rev. D, 2011, 83: 034001

[1]	Ai-Jun Ma , Ya Li , Wen-Fei Wang , Zhen-Jun Xiao . S-wave resonance contributions to B_(s)⁰→η_c(2S)π⁺π^-in the perturbative QCD factorization approach. Chinese Physics C, 2017, 41(8): 083105. doi: 10.1088/1674-1137/41/8/083105
[2]	Ying Li , Dan-Dan Wang , Cai-Dian Lü . Pure annihilation type B→K0±(1430)K()^干 decays in the family non-universal Z0 model. Chinese Physics C, 2016, 40(1): 013101. doi: 10.1088/1674-1137/40/1/013101
[3]	ZHANG Zhi-Qing , FU Jian-Hua . Analysis of B→a₁(1260)(b₁(1235))K^* decays in the perturbative QCD approach. Chinese Physics C, 2015, 39(3): 033102. doi: 10.1088/1674-1137/39/3/033102
[4]	Farida Tahir , Azeem Mir , Shakeel Mahmood . Study of pure and semileptonic decays of D_s meson within R-parity violating supersymmetric model. Chinese Physics C, 2014, 38(12): 123101. doi: 10.1088/1674-1137/38/12/123101
[5]	WANG Wen-Fei , FAN Ying-Ying , XIAO Zhen-Jun . Semileptonic decays B_c→(η_c,J/Ψ)lv in the perturbative QCD approach. Chinese Physics C, 2013, 37(9): 093102. doi: 10.1088/1674-1137/37/9/093102
[6]	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
[7]	ZOU Zhi-Tian , LI Cheng , LÜ Cai-Dian . Pure annihilation type D→PP(V) decays in the perturbative QCD approach. Chinese Physics C, 2013, 37(9): 093101. doi: 10.1088/1674-1137/37/9/093101
[8]	JIN Dan , YANG Ya-Dong . Radiative decays J/ψ → η^(')γ in perturbative QCD. Chinese Physics C, 2011, 35(8): 703-707. doi: 10.1088/1674-1137/35/8/001
[9]	HOU Zhao-Yu , GUO Peng , WU Wen-Wang . Uncertainty study of D_S^-(D^-)→γlν (l=e,μ) decays determined by wave function. Chinese Physics C, 2011, 35(7): 603-607. doi: 10.1088/1674-1137/35/7/001
[10]	LIU Xin , ZHANG Zhi-Qing , XIAO Zhen-Jun . B→K₀^*(1430) η^(′) decays in the pQCD approach. Chinese Physics C, 2010, 34(2): 157-164. doi: 10.1088/1674-1137/34/2/001
[11]	LIU Xin , ZHANG Zhi-Qing , XIAO Zhen-Jun . B→(J/ψ,η_c) K decays in the perturbative QCD approach. Chinese Physics C, 2010, 34(7): 937-943. doi: 10.1088/1674-1137/34/7/002
[12]	ZHANG Zhi-Qing , XIAO Zhen-Jun . B→f₀(980) (π,η^(′)) decays in the PQCD approach. Chinese Physics C, 2009, 33(7): 508-515. doi: 10.1088/1674-1137/33/7/002
[13]	LI Ying , HUA Juan . Study of pure annihilation decays B_d,s→D⁰D⁰. Chinese Physics C, 2008, 32(10): 781-787. doi: 10.1088/1674-1137/32/10/003
[14]	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
[15]	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.
[16]	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.
[17]	LU GoNG-Ru , WANG Ru-Min , YANG Ya-Dong . Analysis of the Annihilation Decays B0s,d→J/ψ γ with QCD Factorization. Chinese Physics C, 2005, 29(3): 232-236.
[18]	LI Ying , LU Cai-Dian . Calculation of Rare Decay B⁺→D⁺_sK^*0 in Perturbative QCD Approach. Chinese Physics C, 2003, 27(12): 1062-1066.
[19]	JIANG Jun-Qin , LI Jie-Ming . Calculation of the 0⁺⁺ Glueball Mass for 2+1 Dimensional QCD by Using the Improved Lattice Hamiltonian. Chinese Physics C, 2001, 25(10): 941-944.
[20]	BES Collaboration . Measurement of the Branching Ratios of τ^±→π^±+nπ⁰+ν_τ(n=0,1,2) decays. Chinese Physics C, 1997, 21(3): 193-200.

Access

Get Citation

ZOU Zhi-Tian, ZHOU Rui and LÜ Cai-Dian. Pure annihilation type decays B⁰→D_s^- K₂^*+ and B_s→Da₂ in perturbative QCD approach[J]. Chinese Physics C, 2013, 37(1): 013103. doi: 10.1088/1674-1137/37/1/013103

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2012-04-16
Revised: 2012-04-28

Article Metric

Article Views(2096)
PDF Downloads(285)
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

Pure annihilation type decays B⁰→D_s^- K₂^*+ and B_s→Da₂ in perturbative QCD approach

Received Date: 2012-04-16

Accepted Date: 2012-04-28

Available Online: 2013-01-05

Abstract: We calculate the branching ratios of pure annihilation type decays B⁰→D_s^- K₂^*+ and B_s→Da₂ using the perturbative QCD approach based on k_T factorization. The branching ratios are predicted to be (60.6_{-16.5-10.4-2.1}^{+17.3+4.3+3.2} )× 10^-6 for B⁰→D_s^- K₂^*+, (1.1_-0.4-0.2-0.1^+0.4+0.1+0.1)×10^-6 for B_s→D⁰a₂⁰ and (2.3_-0.8-0.4-0.1^+0.8+0.2+0.1)×10^-6 for B_s→D^-a₂⁺. They are large enough to be measured in the ongoing experiment. Due to the shortage of contributions from penguin operators, there are no direct CP asymmetries for these decays in the Standard Model. We also derive simple relations among these decay channels to reduce theoretical uncertainties for the experiments to test the accuracy of theory and search of new physics signal.

HTML

Reference (1)

Pure annihilation type decays B⁰→D_s^- K₂^*+ and B_s→Da₂ in perturbative QCD approach

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Pure annihilation type decays B⁰→D_s^- K₂^*+ and B_s→Da₂ in perturbative QCD approach

HTML

目录