Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-10-10
Phys.Lett. B529 (2002) 212-221
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 4 eps figures, a reference with two papers added
Scientific paper
10.1016/S0370-2693(02)01257-1
We investigate the observability of the lightest Higgs boson in the gluon-fusion channel at the CERN Large Hadron Collider (LHC) in the minimal supersymmetric Standard Model with explicit CP-violating mixing among three neutral Higgs bosons. The lightest Higgs boson with its mass less than 130 GeV can be detected at the LHC via its gluon-fusion production followed by the decay into two photons. The explicit CP violation can suppress both the production cross section and the two-photon decay branching fraction so significantly that the signal cross section may be more than ten times smaller than the SM signal. This reduction factor can be as small as 1/40 if the lightest Higgs boson mass is 115 GeV and its production cross section at LEP2 is more than 90 % that of the SM case.
Choi Yong-Sang
Hagiwara Kaoru
Lee Jae Sik
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