Journal
PHYSICS LETTERS B
Volume 696, Issue 1-2, Pages 79-86Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2010.12.009
Keywords
Left-right twin Higgs; Higgs-pair; LHC
Funding
- National Natural Science Foundation of China (NNSFC) [11005089]
- Foundation of Yantai University [WL09B31]
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In the framework of the left-right twin Higgs (LRTH) model, we study the production of a pair of SM-like Higgs bosons at the LHC (Higgs mass is typical in the range of 160-180 GeV). First, we examine the production rate and find that it can be significantly larger than the SM prediction. Then we investigate the decays of the Higgs-pair and find that in some parameter space the new decay mode hh -> WW (S) over cap(S) over cap ((S) over cap is a candidate for WIMP dark matter) can be important, which can suppress sizably the conventional decay modes like hh -> WWWW, hh -> WWZZ and hh -> WWb (b) over bar. Finally, we study the promising channel gg -> hh -> WWWW and find that the rate can be sizably enhanced or suppressed compared with the SM prediction. (C) 2010 Elsevier B.V. All rights reserved.
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