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Single top production associated wit

時間:2023-04-29 21:44:45 數理化學論文 我要投稿
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Single top production associated with a neutral scalar at LHC in topcolor-assisted technicolor

The topcolor-assisted technicolor(TC2)model predicts a number of neutral SCalars like the top-pion (π0t)and the top-Higgs(h0t).These scalar8 have flavor-changing neutral-current(FCNC)top quark couphngs,among which the top-charm transition couplings may be sizable.Such FCNC couplings induce single top productions associated with a neutral scalar at the CERN Large Hadron Collider(LHC)through the parton processes cg→tπ0t and cg→th0t.In this paper we examine these productions and find their production rates can exceed the 3σ sensitivity of the LHC in a large part of parameter space.Since in the Standard Model and the minimal supersymmetric model such rare productions have unobservably small production rates at the LHC.these rare processes will serve as a good probe for the TC2 model.

作 者: LIU Guo-Li ZHANG Huan-Jun   作者單位: LIU Guo-Li(Department of Physics,Zhengzhou University,Henan 450052,China)

ZHANG Huan-Jun(Department of Physics,Henan Normal University,Xinxiang 453007,China) 

刊 名: 中國物理C(英文版)  ISTIC 英文刊名: CHINESE PHYSICS C  年,卷(期): 2008 32(9)  分類號: O4  關鍵詞: top quark   technicolor   LHC  

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