Analysis of Λb→pK- and pπ- decays in a flavor changing Z' mode

WANG Shuai-Wei; HUANG Jin-Shu; LI Gen-Quan

doi:10.1088/1674-1137/37/6/063103

Chinese Physics C> 2013, Vol. 37> Issue(6) : 063103 DOI: 10.1088/1674-1137/37/6/063103

Analysis of Λ_b→pK^- and pπ^- decays in a flavor changing Z' mode

Abstract
HTML
Reference
Related

PDF

Abstract：
In this paper, we calculate the branching ratios of Λ_b→pK^- and pπ^- decays in the avor changing Z' model. We nd that the branching ratios for these two decay modes are sensitive to the contributions of the Z' boson. For Λ_b→pK^- decay, if the left-handed couplings are equal to the right-handed couplings, the branching ratio of this decay could match up to the currently experimental data for ξ_s=0.01 and -52°<φ_s^L<132°, or ξ_s=0.004 and 0°<φ_s^L<84°; if only the left-handed couplings are considered, it could match up to the experimental data for ξ_s=0.01 and -10°φ_s^L<138°. And for Λ_b→pK^- decay, if the left-handed and right-handed couplings are equal, the branching ratio of Λ_b→pK^- decay may be consistent with the currently experimental data with ξ_d=0.05 and -135°φ_d^L<43°, if only the left-handed couplings are considered, it may be consistent with ξ_d=0.05 and -114°φ_d^L<8°.

[1]	Takuya Morozumi , Hideaki Okane , Hiroki Sakamoto , Yusuke Shimizu , Kenta Takagi , Hiroyuki Umeeda . Phenomenological aspects of possible vacua of a neutrino flavor model. Chinese Physics C, 2018, 42(2): 023102. doi: 10.1088/1674-1137/42/2/023102
[2]	Zhi-Hui Wang , Yi Zhang , Tian-Hong Wang , Yue Jiang , Qiang Li , Guo-Li Wang . Strong decays of P-wave mixing heavy-light 1⁺ states. Chinese Physics C, 2018, 42(12): 123101. doi: 10.1088/1674-1137/42/12/123101
[3]	D. Banerjee , S. Sahoo . Analysis of λ_b→λ l⁺l^- rare decays in a non-universal Z' model. Chinese Physics C, 2017, 41(8): 083101. doi: 10.1088/1674-1137/41/8/083101
[4]	Sergey Dubovichenko , Nassurlla Burtebayev , Albert Dzhazairov-Kakhramanov , Denis Zazulin , Zhambul Kerimkulov , Marzhan Nassurlla , Chingis Omarov , Alesya Tkachenko , Tatyana Shmygaleva , Stanislaw Kliczewski , Turlan Sadykov . New measurements and phase shift analysis of p¹⁶O elastic scattering at astrophysical energies. Chinese Physics C, 2017, 41(1): 014001. doi: 10.1088/1674-1137/41/1/014001
[5]	ZHENG Wen-Heng , YANG Jian-Cheng , LI Peng , LI Zhong-Shan , SHANG Peng , QU Guo-Feng , GE Wen-Wen , TANG Mei-Tang , SHA Xiao-Ping . Simulation of loss of uranium ions due to charge changing processes in the CSRm ring. Chinese Physics C, 2015, 39(4): 047005. doi: 10.1088/1674-1137/39/4/047005
[6]	SUN Jian-Ping , ZHANG Zheng-Jun , HAN Yin-Lu . Calculation and analysis of cross-sections for p+¹⁸⁴W reactions up to 200 MeV. Chinese Physics C, 2015, 39(8): 084102. doi: 10.1088/1674-1137/39/8/084102
[7]	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
[8]	HUANG Liang-Sheng , Yoshiro Irie , LIU Yu-Dong , WANG Sheng . Mode error analysis of impedance measurement using twin wires. Chinese Physics C, 2015, 39(3): 037003. doi: 10.1088/1674-1137/39/3/037003
[9]	ZHANG Cong , HE Yuan , ZHAO Hong-Wei , ZHANG Sheng-Hu . Multipacting simulation and analysis of a taper quarter wave cavity by using Analyst-PT3P. Chinese Physics C, 2012, 36(4): 362-366. doi: 10.1088/1674-1137/36/4/012
[10]	LI Bao-Fei , CHEN Xiao-Lin , DENG Wei-Zhen . Study on the mechanism of open-flavor strong decays. Chinese Physics C, 2012, 36(2): 106-116. doi: 10.1088/1674-1137/36/2/002
[11]	GUO Feng-Kun . Heavy quark spin symmetry and heavy flavor hadronic molecules. Chinese Physics C, 2010, 34(9): 1294-1297. doi: 10.1088/1674-1137/34/9/027
[12]	XIAO Chen , YUAN You-Jin , HE Yuan , LIU Yong , XIA Jia-Wen . PIC mode simulation of solenoid collimation channel. Chinese Physics C, 2010, 34(8): 1136-1139. doi: 10.1088/1674-1137/34/8/019
[13]	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
[14]	ZHANG Jian-Rong , HUANG Ming-Qiu . Heavy flavor baryon spectra via QCD sum rules. Chinese Physics C, 2009, 33(12): 1385-1388. doi: 10.1088/1674-1137/33/12/061
[15]	HAN Ji-Feng , ZHANG Jia-Wen , CHEN Jin , ZHANG Qing-Min , LIU Qian , XIE Yu-Guang , QIAN Sen , MA Lie-Hua . Test of BESⅢ RPC in the avalanche mode. Chinese Physics C, 2008, 32(5): 373-376. doi: 10.1088/1674-1137/32/5/009
[16]	GU Yun-Ting , PENG Ji-Zhu , FENG Lu-Yan , LU Lian-Zhong , TAN Zhen-Qiang , MA Wei-Xing . Analysis of Three Annihilation Potential andp+ ¹²C Inelastic Scattering. Chinese Physics C, 2004, 28(1): 69-72.
[17]	Liu Bo , Zhao Weiqin . Analysis of the New Data of Transverse Energy Distributions in High Energy p-A Collisions Based on Geometrical Model. Chinese Physics C, 1994, 18(S4): 385-390.
[18]	YAN Wu-Guang , YU Hong . THE ANGULAR DISTRIBUTION FOR THE PROCESS e⁺e^－→J/ψ→γB,B→P₁P₂ AND THE SPIN ANALYSIS OF B. Chinese Physics C, 1989, 13(3): 234-240.
[19]	Sun Changpu . Quasi-Adiabatic Approximation for Slowly-Changing Quantum System and Berry's Phase Factors. Chinese Physics C, 1988, 12(S3): 251-260.
[20]	WU Dan-Di , LI Tie-Zhong . HOW TO MAKE p→μ⁺η THE MAIN MODE OF PROTON DECAY. Chinese Physics C, 1984, 8(6): 777-780.

Access

Get Citation

WANG Shuai-Wei, HUANG Jin-Shu and LI Gen-Quan. Analysis of Λ_b→pK^- and pπ^- decays in a flavor changing Z' mode[J]. Chinese Physics C, 2013, 37(6): 063103. doi: 10.1088/1674-1137/37/6/063103

WANG Shuai-Wei, HUANG Jin-Shu and LI Gen-Quan. Analysis of Λ_b→pK^- and pπ^- decays in a flavor changing Z' mode[J]. Chinese Physics C, 2013, 37(6): 063103. doi: 10.1088/1674-1137/37/6/063103 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2012-07-26
Revised: 2012-09-09

Article Metric

Article Views(2046)
PDF Downloads(248)
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

Analysis of Λ_b→pK^- and pπ^- decays in a flavor changing Z' mode

Corresponding author: WANG Shuai-Wei,

Corresponding author: HUANG Jin-Shu,

Received Date: 2012-07-26
Accepted Date: 2012-09-09
Available Online: 2013-06-05

Abstract: In this paper, we calculate the branching ratios of Λ_b→pK^- and pπ^- decays in the avor changing Z' model. We nd that the branching ratios for these two decay modes are sensitive to the contributions of the Z' boson. For Λ_b→pK^- decay, if the left-handed couplings are equal to the right-handed couplings, the branching ratio of this decay could match up to the currently experimental data for ξ_s=0.01 and -52°<φ_s^L<132°, or ξ_s=0.004 and 0°<φ_s^L<84°; if only the left-handed couplings are considered, it could match up to the experimental data for ξ_s=0.01 and -10°φ_s^L<138°. And for Λ_b→pK^- decay, if the left-handed and right-handed couplings are equal, the branching ratio of Λ_b→pK^- decay may be consistent with the currently experimental data with ξ_d=0.05 and -135°φ_d^L<43°, if only the left-handed couplings are considered, it may be consistent with ξ_d=0.05 and -114°φ_d^L<8°.