Lepton Flavor Violating Z→l<SUB>i</SUB>l<SUB>j</SUB>in Flavor-Universal Topcolor-Assisted Technicolor Models

YUE Chong-Xing; ZHAO Ye; LI Hong; ZHAO Qi

Chinese Physics C> 2003, Vol. 27> Issue(12) : 1070-1073

Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models

Physics Department of Liaoning Normal University,Dalian 116029,China2 College of Physics and Information Engineering,Henan Normal University,Xinxiang 453002,China3 Pingdingshan Radio and TV University,Pingdingshan 467000,China

Abstract
HTML
Reference
Related

PDF

Abstract：
In the context of flavor-universal topcolor-assisted technicolor (TC2) models, we study the lepton flavor violating (LFV) processes Z→l_il_j. We find that the extra U(1) gauge boson Z′ can give significantly contributions to these LFV processes. With reasonable values of the parameters, the branching ratios of the processes Z→τμ and Z→τe can approach the experimental upper limits. The indirect bound on the process Z→μe can give a severe constraint on the flavor-universal TC2 models.

References

[1]

. Superkamiokande Collaboration,Fukuda Y et al. Phys. Lett. ,1994 ,B335:237;Fukuda Y et al.Phys .Rev.Lett.,1998,81:1562;Phys .Rev. Lett. ,2001, 86:5651;Phys.Rev.Lett.,2001,86:5656;SNO Collaboration,Ahmad Q R et al.Phys.Rev.Lett.,2001,87:071301 2. Riemann T ,Mann G .Nondiagonal Z decay:Z→eμ,Proc.of the Int.Conf.Neutrino’82,14—19 June 1982;Ganapathi V et al.Phys.Rev.,1983,D27:579;Clements M et al.Phys.Rev.,1983,D27:570;Mann G ,Riemann T .Annalen Phys.,1984,40:3343. Ghosal A ,Koide Y ,Fusaoka H .Phys.Rev.,2001,D64:0530124. Iltan E O ,Turan I .Phys.Rev.,2002,D65:0130015. OPAL Collaboration,Akers R et al.Z .Phys.,1995,C67:555;L3 Collaboration,Adriani O et al.Phys.Lett.,1993,B316:427;DEL PHI Collaboration,Abreu P et al.Z .Phys.,1997,C73:2436. Wilson G .Neutrino Oscillations:are lepton flavor violating Z decays ov-servable with the CDR detector and Update on experimental aspects of lepton-flavor violation,DESY-ECFA LC Workshop held at Frascati,Nov.1998 and at Oxford,march 19997. Hill C T .Phys.Lett.1995,B345:483;Cvetic G .Rev.Mod.Phys.,1999,71:5138. Popovic M B ,Simmons E H .Phys.Rev.,1998,D58:095007;Burd-man G ,Evans N .Phys.Rev.,1999,D59:1150059. Rador T .Phys.Rev.,1999,D60:095012;YUE Chong-Xing et al.Phys.Lett.,2000,B496:89 10. YUE Chong-Xing et al.High Energy Phys.and Nucl. Phys., 2002,26(10):1004—1008(in Chinese);YUE Chong-Xing,ZHANG Yan -Ming,LIU Lan-Jun.High Energy Phys.and Nucl.Phys.,2003,27(7):564(in Chinese);(岳崇兴等. 高能物理与核物理,2002,26(10):1004—1008)(岳崇兴,张延明,刘兰君.高能物理与核物理,2003,27(7):564)11. Paratical Data Group.Eur.Phys.J.,2000,C15:1 12. Simmons E H .Phys.Lett.,2002,B526:365 13. Nussinov S ,Peccei R D ,ZHANG X M .Phys.Rev.,2000,D63:016003;Delepine D ,Vissani F .Phys.Lett.,2001,B522:95 14. Burdman G ,Lane K ,Rador T .Phys.Lett.,2001,B514:41

[1]	LI Bing-Zhong , HAN Jin-Zhong . Searching for a neutral top-Higgs in association with top-quark pairs at an e⁺e^- collider in the TC2 model. Chinese Physics C, 2011, 35(10): 908-913. doi: 10.1088/1674-1137/35/10/004
[2]	LU Gong-Ru , HUANG Jin-Shu , LV Gang . Research of bb Production in the Topcolor Assisted Technicolor Model. Chinese Physics C, 2007, 31(2): 143-149.
[3]	HUANG Feng , XU Rong-Guang , MA Bo-Qiang . Contribution of Sigma Meson Cloud to Proton's Antiquark Distribution. Chinese Physics C, 2005, 29(1): 9-13.
[4]	YUE Cong-Xing , YU Dong-Qi . Neutral top-pion and the Lepton Flavor Violating Processes. Chinese Physics C, 2005, 29(11): 1027-1032.
[5]	LU Gong-Ru , YIN Fu-Rong , WANG Xue-Lei , WAN Ling-De . Rare Top Quark Decays t→cV in theTopcolor-Assisted Technicolor Model. Chinese Physics C, 2004, 28(4): 345-349.
[6]	LIU Lan-Jun , YUE Chong-Xing . Lepton Flavor Violating Processes l_i→l_jν_ll in Topcolor-AssistedTechnicolor Models. Chinese Physics C, 2004, 28(5): 475-478.
[7]	YUE Chong-Xing , ZHANG Yan-Ming , LIU Lan-Jun . Z′and Lepton Flavor-Violation Tau Decays. Chinese Physics C, 2003, 27(7): 564-566.
[8]	YUE Chong-Xing . Signature of TC2 Theory in High Energy e⁺e^－ Colliders. Chinese Physics C, 2002, 26(S1): 16-19.
[9]	ZHANG Jin-Yu , WAN Ling-De , WANG Xue-Lei , YANG Yue-Ling , LI Bing-Zhong . Searching for Neutral Toppion in TC2 Model via a Flavor-Changing Process. Chinese Physics C, 2002, 26(12): 1209-1213.
[10]	YUE Chong-Xing , LI Jian-Tao . Top-Charm Production in the Topcolor-Assisted Technicolor Theory. Chinese Physics C, 2001, 25(10): 945-951.
[11]	MA BoQiang , HUANG XinBing , Jacques Soffer . Flavor Separation of Quark toΛ-Baryon Fragmentation. Chinese Physics C, 2000, 24(3): 196-202.
[12]	LU GongRu , GUO HongKai , YUE ChongXing , XIAO ZhenJun . Process e⁺e^－→tc in Topcolor-Assisted Technicolor Model. Chinese Physics C, 2000, 24(9): 810-817.
[13]	BES Collaboration . Determination of J/ψ Leptonic Branching Fraction Via ψ(2S)→π⁺π^－J/ψ. Chinese Physics C, 1996, 20(2): 97-106.
[14]	BES Collaboration . Study of ψ(2S) Decay to τ Lepton Pairs. Chinese Physics C, 1995, 19(7): 577-584.
[15]	CHEN Zhiqian . Binding Strength and Oxygen Coordination of the Fe Sites in High T_C GdBa₂ Cu₃O_7—δ. Chinese Physics C, 1993, 17(11): 971-975.
[16]	Chen Zhiqian . Binding Strength and Oxygen Coordination of the Fe Sites in High T_c GdBa₂Cu₃O_7-δ. Chinese Physics C, 1993, 17(S3): 225-229.
[17]	Chen Zhiqian , Zheng Renrong , Yin Chuanzong . Mössbauer Study of High T_c GdBa₂Cu₃O_7-δ. Chinese Physics C, 1992, 16(S2): 117-122.
[18]	ZHOU Jing-Chen , CAI Xu . BREAK DOWN OF UNIVERSALITY OF KNO SCALED MULTIPLICITY DISTRIBUTIONS IN HIGH ENERGY HADRON-NUCLEUS COLLISIONS AND MULTISOURCE MODEL. Chinese Physics C, 1989, 13(10): 896-899.
[19]	LI Bing-An . DECAY π⁰→2γ IN THE MIT BAG MODEL. Chinese Physics C, 1984, 8(3): 279-284.
[20]	WU JING-YUAN , LI XIAO-YUAN , CHEN ZHONG-MO . THE DIFFICULTY OF THE DECAY τ→πν_τ AND SPIN 3/2 HEAVY LEPTON. Chinese Physics C, 1978, 2(3): 236-241.

Access

Get Citation

YUE Chong-Xing, ZHAO Ye, LI Hong and ZHAO Qi. Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models[J]. Chinese Physics C, 2003, 27(12): 1070-1073.

YUE Chong-Xing, ZHAO Ye, LI Hong and ZHAO Qi. Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models[J]. Chinese Physics C, 2003, 27(12): 1070-1073. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-02-14
Revised: 1900-01-01

Article Metric

Article Views(3775)
PDF Downloads(566)
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

Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models

Corresponding author: YUE Chong-Xing,

Physics Department of Liaoning Normal University,Dalian 116029,China2 College of Physics and Information Engineering,Henan Normal University,Xinxiang 453002,China3 Pingdingshan Radio and TV University,Pingdingshan 467000,China

Received Date: 2003-02-14

Accepted Date: 1900-01-01

Available Online: 2003-12-05

Abstract: In the context of flavor-universal topcolor-assisted technicolor (TC2) models, we study the lepton flavor violating (LFV) processes Z→l_il_j. We find that the extra U(1) gauge boson Z′ can give significantly contributions to these LFV processes. With reasonable values of the parameters, the branching ratios of the processes Z→τμ and Z→τe can approach the experimental upper limits. The indirect bound on the process Z→μe can give a severe constraint on the flavor-universal TC2 models.

HTML

Reference (1)

Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models

Corresponding author: YUE Chong-Xing,

HTML

目录

Lepton Flavor Violating Z→liljin Flavor-Universal Topcolor-Assisted Technicolor Models

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Lepton Flavor Violating Z→liljin Flavor-Universal Topcolor-Assisted Technicolor Models

Corresponding author: YUE Chong-Xing,

HTML

目录

Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models

Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models