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

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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

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[14]	BES Collaboration . Determination of J/ψ Leptonic Branching Fraction Via ψ(2S)→π⁺π^－J/ψ. Chinese Physics C, 1996, 20(2): 97-106.
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[16]	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.
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[18]	Chen Zhiqian , Zheng Renrong , Yin Chuanzong . Mössbauer Study of High T_c GdBa₂Cu₃O_7-δ. Chinese Physics C, 1992, 16(S2): 117-122.
[19]	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.
[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.

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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

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

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通讯作者: 陈斌, bchen63@163.com

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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.

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

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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