| THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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Associated Production of a Neutral Top-Higgs with Top Quark Pairs at the LHC within the TC2 model |
| LI Bing-Zhong1,2, HAN Jin-Zhong1
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1College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007
2College of Physics and Electronic Engineering, Xinyang Normal University, Xinyang 464000
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LI Bing-Zhong, HAN Jin-Zhong 2011 Chin. Phys. Lett. 28 041201 |
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Abstract Within the context of the topcolor-assisted technicolor (TC2) model we investigate the associated production of the neutral top-higgs ht0 with a pair of top quarks, i.e.pp →ttht0 at the Large Hadron Collider (LHC), which proceeds through the partonic processes qq→ttht0 and gg →ttht0. We calculate the production rate and show the distributions of the transverse momenta of ht0. It is found that the cross section of pp →ttht0 can reach a few hundred fb in the most part of the allowed parameter space and even a few tens of pb for the light top−higgs. Due to the large cross section of ttht0 production and the top−charm decay mode of ht0 for mh(_o^t)<2mt, the process pp →ttht0 can play an important role in the probe of neutral top-higgs and the test of the TC2 model.
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| Keywords:
12.60.Nz
14.65.Ha
14.80.Ec
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Received: 08 December 2010
Published: 29 March 2011
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