The Constraints on the OGTM Model and MTC Model From Flavor-Changing Z Decay

  • The one-loop contributions of pseudo Goldstone bosons to the flavorchanging decay Z→bs(bs) in the one generation technicolor models(OGTM) and the technicolor model with a massless scalar doublet are calculated. We find that the contributions can strongly cnhance the branching ratio B(Z→bs+bs). So, a more stringent limit on the parameters h. λ can be obtained.
  • 加载中
  • [1] M.Clements et al.,Phys.Rev.,D27(1983)57OV.Ganapathi et al,Phys.Rev.,D27(1983)579;A.Axelrod,Nucl.Phys,B209(1982)349[2]B.Mukhopadhvava.,S.Kaychandhuri,Z Phys,45(1990)421;B.Grzadkowski et al,Phys.Lett,B268(1991)106;J.L.Hewett et al,Phys.Rev;D39(1989)250.[3]B.Mukhopadhvava et al,Phys.Rev.,D39(1989)280;F.Gabbiani et al,Phys.Lett,B214(1988)398.GGamberini et al,Nucl.Phys,B287(1987)304;M.J.Duncan,Phys.Rev.,D31(1985)1139[4]G.Monotagna et al,CERN.TH.7322/94.and reference there in.[5]T.Azemoon,26th International IUPAP Conference on High Energy Physics,ICHEP 92,Dallas,TX,USA,6-12Aug.1992.[6]S.Weinberg,Phys.Rev.,D13(1976)974D19(1979)1277.[7]L.Susskind,Phys.Rev,D20(1979)2619[8]J.Eillis et al,Nucl.Phys.,B282(1981)529[9]M.EPeskin,T Takeuchi,Phys.Rev,D46(1992)381.[10]E.H.Simmons,Nucl.Phys,,B312(1989)253;S.Samuel,ibid.B347(1990)625.[11]A KaganS.Samuel,Phys.Lett,B252(1990)605;B270(1991)37.[12]C.D.Carone,E.H.Simmons,Nucl.Phys.,B397(1993)591.[13]C.D.Carone,H.Georgi,Phys.Rev.,D49(1994)1427[14]M.Clements et al.,Phys.Rev.,D27(1983)507;A.Axelrod,Nucl.Phys.,B209(1982)349W.Hoillik.DESY 88-188;G Passarino,M.Veltman,Nucl.Phys.,B160(1979)151.[15]Particle Data.Group,Phys.Rev.,D45No.11(1992).[16]F.Abe et al.,Phys.Rev.Lett.,74(1995)2626.[17]S.Abachi et al.,Phys.Rev.Lett.,74(1995)2632.[18]F.dydak in Proceedings of the XXVth International Conference of high energy Physics,Singapore,1990 edited by K.K.Phua.Y.Yamaguchi(Word Scientific Singpore(1991).[19]D.Decamp et al.,Phys.Rep.,216(1992)253.[20]DELPHI Collaboration,Nucl.Phys.,B421(1994)3.
  • 加载中

Get Citation
Wang Xuelei, Yang Hua and Lu Gongru. The Constraints on the OGTM Model and MTC Model From Flavor-Changing Z Decay[J]. Chinese Physics C, 1996, 20(7): 610-616.
Wang Xuelei, Yang Hua and Lu Gongru. The Constraints on the OGTM Model and MTC Model From Flavor-Changing Z Decay[J]. Chinese Physics C, 1996, 20(7): 610-616. shu
Milestone
Received: 1900-01-01
Revised: 1900-01-01
Article Metric

Article Views(2648)
PDF Downloads(493)
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

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

The Constraints on the OGTM Model and MTC Model From Flavor-Changing Z Decay

    Corresponding author: Wang Xuelei,
  • Department of Physics, Henan Normal University, Xinxiang 453002

Abstract: The one-loop contributions of pseudo Goldstone bosons to the flavorchanging decay Z→bs(bs) in the one generation technicolor models(OGTM) and the technicolor model with a massless scalar doublet are calculated. We find that the contributions can strongly cnhance the branching ratio B(Z→bs+bs). So, a more stringent limit on the parameters h. λ can be obtained.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return