Rare Top Quark Decays t→cV in theTopcolor-Assisted Technicolor Model

  • We consider the rare top quark decays in the framework of topcolorassisted technicolor (TC2) model. We find that the contributions of top-pions and top-Higgs predicted by the TC2 model can enhance the SM branching ratios by as much as 6—9 orders of magnitude. i.e., in the most case, the orders of magnitude of branching ratios are Br(t→cg)~10-5, Br(t→cZ)~10-5, Br(t→cγ)~10-7. With the reasonable values of the parameters in TC2 model, such rare top quark decays may be testable in the future experiments. So, rare top quark decays provide us a unique way to test TC2 model.
  • 加载中
  • [1] .  Hill C T. Phys. Lett . , 1995 , B345 :483 ; Lane K, Eichten E. Phys.Lett . , 1995 , B352 :382 ; Lane K. Phys. Lett . , 1998 , B433 :962. Buchalla Get al . Phys. Rev. , 1996 , D53 :51853. YUE C X. Phys. Rev. , 2001 , D64 :0950044. HE HJ , YUAN C P. Phys. Rev. Lett . , 1999 , 83 :28 ; Burdman G.Phys. Rev. Lett . , 1999 , 83 :28885. WANG X L et al . Phys. Rev. , 2000 , D66 :075009 ; WANG X L etal . Phys. Rev. , 2000 , D66 :075013 ; CAO J J et al . Phys. Rev. ,2003 , D67 :0717016. ZHANGJin2Yu et al . HEP NP , 2002 , 26 :1209 (in Chinese)(张晋宇等. 高能物理与核物理,2002 ,26 :1209)7. Eilan G, Hewett J L , Soni A. Phys. Rev. , 1991 , D44 :14738. Frey R et al . FERMIAB-2CONF-29-085 , hep-ph/9704243 ; Aguilar2Saavedra J A , Branco G C. Phys. Lett . , 2000 , B495 :347 ; Aguilar2Saavedra J A. Phys. Lett . , 2001 , B502 :1159. WANG Xue2Lei et al . HEP NP , 1995 , 19 :534 (in Chinese)(王学雷等. 高能物理与核物理,1995 ,19 :534)10. Ahmadov A et al . Top Quark Physics , hep2phP0003033 ; Simmons E H.Top Physics , hep-ph/001124411. YUE Chong2Xing et al . TUHEP2TH299109 ; Phys. Rev. , 2000 , D62 :055005 ; YUE Chong2Xing et al . Phys. Rev. , 2000 , D62 : 055005 ;YUE Chong2Xing et al . Phys. Rev. , 2001 , D64 :09500412. Chivukula R S et al . Phys. Rev. , 1999 , D59 :07500313. Diaz R A , Martine R , Alexis Rodriguez J . hep2phP010330714. Guasch J , Sola J . Nucl . Phys. , 1999 , B562 :3 ; Diaz R A , MartinezR , Rodriguez J A. hep2phP010330 ; Simmons E H. hep-ph/0211335 ;Bejar S , Guasch J , Sola J . hep-ph/0101294
  • 加载中

Get Citation
LU Gong-Ru, YIN Fu-Rong, WANG Xue-Lei and WAN Ling-De. Rare Top Quark Decays t→cV in theTopcolor-Assisted Technicolor Model[J]. Chinese Physics C, 2004, 28(4): 345-349.
LU Gong-Ru, YIN Fu-Rong, WANG Xue-Lei and WAN Ling-De. Rare Top Quark Decays t→cV in theTopcolor-Assisted Technicolor Model[J]. Chinese Physics C, 2004, 28(4): 345-349. shu
Milestone
Received: 2003-06-27
Revised: 1900-01-01
Article Metric

Article Views(2558)
PDF Downloads(572)
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:

Rare Top Quark Decays t→cV in theTopcolor-Assisted Technicolor Model

    Corresponding author: WANG Xue-Lei,
  • College of Physics and Information Engineering,Henan Normal University,Xinxiang 453002,China

Abstract: We consider the rare top quark decays in the framework of topcolorassisted technicolor (TC2) model. We find that the contributions of top-pions and top-Higgs predicted by the TC2 model can enhance the SM branching ratios by as much as 6—9 orders of magnitude. i.e., in the most case, the orders of magnitude of branching ratios are Br(t→cg)~10-5, Br(t→cZ)~10-5, Br(t→cγ)~10-7. With the reasonable values of the parameters in TC2 model, such rare top quark decays may be testable in the future experiments. So, rare top quark decays provide us a unique way to test TC2 model.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return