Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

Lu Gongru; Yang Hua; Wang Xuelei; Yang Jinmin; Sun Wenqi

Chinese Physics C> 1996, Vol. 20> Issue(5) : 414-421

Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

Department of Physics, Henan Normal University,Xinxiang 453002

Abstract
HTML
Reference
Related

PDF

Abstract：
The rare decays t→cV(V=Z,γ,g)induced through loop diagrams are calculated in a minimal Technicolor model(MTC) with a massless weak doublet recently presented by C.D.Carone and H. Georgi.We find that these new contributions can enhance the SM branching fractions by as much as 3—4 orders of magnitude,i.e.,B(t→cZ)≈10,B(t→cγ)≈10^－9, B(t→cg)≈10^－6 for the favorable values of the parameters.It might provide a unique window to detect the virtual effects of technipions in MTC theory.

References

[1]

J.L.Diza-Cruz et al.,Phys.Rev.,D41（1990）891;B.Dutta Roy et al.,Phys.Rev.,Lett,65（1990）827;H.Fritzsch,Phys.Lett,B224（1989）423;W.Bochmuller,M.Gronau,Phys.Lett,B220（1989）641.[2]G.Eilam,J.L.Hewett,A.Soui,Phys Rev.,D44（1991）1473.[3]B.Grzadkowski,J.F Gunion,P.Krawczyk,Phys.Lett,B268（1991）106.[4]C.S.Li,R.J.Oakes,J.M.Yang,Phys.Rev.,D49（1994）293.[5]X.YWang,G.R.Lu;J.M.Yang et al.,Phys.Rev.,D50（1994）5781.[6]C.D.Carore,H.Deorgi,Phys.Rev.,D39（1994）1427.[7]C.D.Carone,E.H.Sinunons,Nucl Phys.,B397（1993）591.[8]E.H.Simmons,Nucl Phys.,B312（1989）253.,S.Samuel,ibid,B347（1990）625.[9]A.Kagan,S.Samuel,Phys.Lett,B252（1990）605;B270（1991）37.[10]Y.D.Yang,T.H.Lu et al.,submitted to Phys.Rev,D（inpress）.[11]G.R.Lu,H.B.Li,Y.D.Yang,toappear in Phys.Rev,D（inpress）.[12]C.D.Carone et al.,Phys.Lett.,B（1995）355.[13]A.Manohar,H.Georgi,Nucl Phys.,B234（1984）189;H.Geogi,L.Randall,Nucl Phys.,B276（1986）241;H.geogi,Phvs Lett,B298（1993）187.[14]CDFcollaboration,F.Abe et al.,FERMILAB-PUB-95/022-E.[15]D0collaboration,S.Abachi et al.,FERMILAB-PUB-95/028-E.[16]D.Decamp et al.,Phys.Rap.,216（1992）253.[17]M.Clements et al.,Phys.Rev.,D27（1983）570;A.Axelrod,Nucl Phys.,B209（1982）349;W.Hollik,DESY88-188;G.Passarino M.Veltman,Nucl Phys.,B160（1979）151.

[1]	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.
[2]	BES Collaboration . Search for Rare Decays of Charmed D Mesons. Chinese Physics C, 2006, 30(3): 183-190.
[3]	WANG Feng-Lin , CHEN Xiao-Lin , LU Da-Hai , ZHU Shi-Lin , DENG Wei-Zhen . Decays of D_sj^*(2317) and D_sj(2460) Mesons in the Quark Model. Chinese Physics C, 2006, 30(11): 1041-1047.
[4]	XIONG Zhao-Hua . Constraining Vectorlike Quark Model From B Radiative Decays. Chinese Physics C, 2006, 30(4): 284-288.
[5]	ZHU Yue-Feng , LI Yu-Lan , Wong Henry , LI Jin , Lin Shin-Ted . Energy & Position Reconstruction on CsI(T1) Scintillator Detector Array in TEXONO Experiment. Chinese Physics C, 2005, 29(3): 288-294.
[6]	ZHANG Gao-Long , YE Yan-Lin , JIANG Dong-Xing , ZHENG Tao , LI Zhi-Huan , LI Xiang-Qing , WU Cui-E , CHEN Zhi-Qiang , HU Qing-Yuan , PANG Dan-Yang , WANG Jia . Experimental Study of the t+t Structure in 6He. Chinese Physics C, 2005, 29(10): 940-943.
[7]	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.
[8]	LI Jin , LIU Yan , ZHAO Di-Xin , MAO Ze-Pu , QIU Jin-Fa , XIA Xiao-Mi , LAI Yuan-Fen , SHENG Hua-Yi , WANG Pei-Liang , ZHUANG Bao-An , ZHAO Ping-Ping , SHI Feng , YUE Qian , , , , . The CsI(T1) Crystal Detector in TEXONO Low Energy Neutrino Experiment. Chinese Physics C, 2002, 26(4): 393-401.
[9]	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.
[10]	XIONG ZhaoHua , CHEN HeSheng , LU Liang , LU GongRu . Rare Radiative Decay b→X_sγ in the Technicolor with Scalars Model. Chinese Physics C, 2000, 24(8): 711-718.
[11]	YUE RuiHong , FAN Heng , CAO JunPeng . Coordinate Bethe Ansatz for Generalized t-J Model. Chinese Physics C, 2000, 24(3): 203-207.
[12]	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.
[13]	Xiao Zhenjun , Lu Linxia , Zhang Jinyu , Guo Hongkai , Lu Gongru . Rare K-Decays and its Strong Constraints on the Multiscale Walking Technicolor Model. Chinese Physics C, 1999, 23(11): 1070-1077.
[14]	Lu Gongru , Pan Qunna , Huang Jinshu , Yue Chongxing . Contributions From PGBs in TOPCMTC Model to the Top-Quark Rare Decay. Chinese Physics C, 1999, 23(3): 250-259.
[15]	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.
[16]	XI Hong-Fei , ZHANG Wen-Long , GUO Zhong-Yan , ZHOU Jian-Qun , ZHU Yong-Tai , LIU Guan-Hua , FAN En-Jie . Application of CsI(T1) Scintillator With Photodiode Readout Detector in Heavy Ion Reaction Experiments. Chinese Physics C, 1993, 17(6): 481-485.
[17]	XIAO Zhen-Jun , LU Gong-Ru , XUE Xiao-Zhou . The't Hooft Anomaly Matching condition in. Chinese Physics C, 1992, 16(3): 208-211.
[18]	YAN Jun-Hu . EXACT SOLUTION OF THE PAULI EQUATION IN THE FIELD OF A 'T HOOFT-POLYAKOV MONOPOLE. Chinese Physics C, 1985, 9(3): 367-370.
[19]	ZENG Bao-Sheng , HUANG Qing , GONG Xue-Hui . MESON AND DI-QUARK CONTRIBUTION TO R(σ_L/σ_T) IN DEEP INELASTIC SCATTERING. Chinese Physics C, 1984, 8(2): 235-240.
[20]	LI ZI-PING . APPROXIMATE SEQUENCE FOR U（t,t₀）-OPERATOR. Chinese Physics C, 1979, 3(4): 511-517.

Access

Get Citation

Lu Gongru, Yang Hua, Wang Xuelei, Yang Jinmin and Sun Wenqi. Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet[J]. Chinese Physics C, 1996, 20(5): 414-421.

Lu Gongru, Yang Hua, Wang Xuelei, Yang Jinmin and Sun Wenqi. Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet[J]. Chinese Physics C, 1996, 20(5): 414-421. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(2690)
PDF Downloads(513)
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 Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

Corresponding author: Lu Gongru,

Department of Physics, Henan Normal University,Xinxiang 453002

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1996-05-05

Abstract: The rare decays t→cV(V=Z,γ,g)induced through loop diagrams are calculated in a minimal Technicolor model(MTC) with a massless weak doublet recently presented by C.D.Carone and H. Georgi.We find that these new contributions can enhance the SM branching fractions by as much as 3—4 orders of magnitude,i.e.,B(t→cZ)≈10,B(t→cγ)≈10^－9, B(t→cg)≈10^－6 for the favorable values of the parameters.It might provide a unique window to detect the virtual effects of technipions in MTC theory.

HTML

Reference (1)

Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article