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

LU Gong-Ru; YIN Fu-Rong; WANG Xue-Lei; WAN Ling-De

Chinese Physics C> 2004, Vol. 28> Issue(4) : 345-349

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

College of Physics and Information Engineering,Henan Normal University,Xinxiang 453002,China

Abstract
HTML
Reference
Related

PDF

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.

References

[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

[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]	GU Qin-Zhong , JIANG Feng-Chun , WANG Xue-Lei , YANG Hua . Probing Top Quark Polarization Effects in Topcolor-Assisted Technicolor Model. Chinese Physics C, 2007, 31(11): 1010-1015.
[3]	LV Lin-Xia , XIAO Zhen-Jun . Neutral Higgs Effects on Rare Decay B→X_sl⁺l^－ in the T2HDM. Chinese Physics C, 2007, 31(8): 708-714.
[4]	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.
[5]	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.
[6]	HUANG Jin-Shu , PAN Qun-Na , SONG Tai-Ping , LU Lin-Xia . Associate Production of the top-Pion with b Quark Pair in TC2 Model at High Energy e⁺e^－ Colliders. Chinese Physics C, 2003, 27(7): 571-573.
[7]	YUE Chong-Xing , ZHAO Ye , LI Hong , ZHAO Qi . Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models. Chinese Physics C, 2003, 27(12): 1070-1073.
[8]	CHEN Jiao-Kai , FANG Zhen-Yun , HU Bing-Quan , ZHANG Zhao-Xi . Spectroscopy for the Bound States of a Top Squark (t) and a Heavy Quark. Chinese Physics C, 2002, 26(8): 766-772.
[9]	YUE Chong-Xing . Signature of TC2 Theory in High Energy e⁺e^－ Colliders. Chinese Physics C, 2002, 26(S1): 16-19.
[10]	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.
[11]	YUE Chong-Xing , LI Jian-Tao . Top-Charm Production in the Topcolor-Assisted Technicolor Theory. Chinese Physics C, 2001, 25(10): 945-951.
[12]	LU Gong-Ru , YUE Chong-Xing , LI Wei-Bin , SUN Jun-Feng . Charged Top-Pions Corrections to the Top Quark Production at LC in TC2 Theory. Chinese Physics C, 2001, 25(2): 101-107.
[13]	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.
[14]	Xi Xiaoqiang , Shi Kangjie , Hou Boyu , Fan Heng . Algebraic Bethe Ansatz for the Supersymmetric t-J Model With Reflecting Boundary Conditions in FBF Background. Chinese Physics C, 1999, 23(10): 961-979.
[15]	Lu Gongru , Yang Hua , Wang Xuelei , Yang Jinmin , Sun Wenqi . Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet. Chinese Physics C, 1996, 20(5): 414-421.
[16]	Zhang Jun , Yang Guangcan , Yan Hong . Two Dimensional Cyclic Representations of U_q(sl₂)and 8-Vertex Ising Model. Chinese Physics C, 1995, 19(11): 1005-1011.
[17]	Yue Chongxing , Lu Gongru . Top-loop Correction to TC Neutral PG Boson Anomaly Coupling. Chinese Physics C, 1995, 19(2): 131-136.
[18]	Wang Xuelei , Zhang Yimin , Yang Jinmin , Lu Gongru . Contributions of One Ceneration Technicolor Model to the Rare Decays t→cV. Chinese Physics C, 1995, 19(6): 534-539.
[19]	ZHANG Zhaoxi , LI Xueqian , YANG Maozhi , WANG Jianxiong . The Study on the Production of tc at LEPⅡ Energy in the Extended Standard Model with Two Higgs-doublets. Chinese Physics C, 1993, 17(12): 1081-1090.
[20]	Chen Zhiqian , Zheng Renrong , Yin Chuanzong . Mössbauer Study of High T_c GdBa₂Cu₃O_7-δ. Chinese Physics C, 1992, 16(S2): 117-122.

Access

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-06-27
Revised: 1900-01-01

Article Metric

Article Views(2799)
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

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

Received Date: 2003-06-27

Accepted Date: 1900-01-01

Available Online: 2004-04-05

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)

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

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article