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Title: C P -odd component of the lightest neutral Higgs boson in the MSSM

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology

The Higgs sector of the minimal supersymmetric extension of the Standard Model (MSSM) may be described with a two Higgs doublet model with properties that depend on the soft supersymmetry breaking parameters. For instance, flavor independent CP-violating phases associated with the gaugino masses, the squark trilinear mass parameters and the Higgsino mass parameter mu may lead to sizable CP-violation in the Higgs sector. For these CP-violating effects to affect the properties of the recently observed SM-like Higgs resonance, the nonstandard charged and neutral Higgs boson masses must be of the order of the weak scale, and both mu as well as the trilinear stop mass parameter A(t) must be of the order or larger than the stop mass parameters. Constraints on this possibility come from direct searches for nonstandard Higgs bosons, precision measurements on the lightest neutral Higgs properties, including its mass, and electric dipole moments. In this article, we discuss these constraints within the MSSM, trying to evaluate the possible size of the CP-odd component of the lightest neutral Higgs boson, and the possible experimental tests of this CP-violating effect at the LHC.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science - Office of High Energy Physics; National Science Foundation (NSF)
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1391792
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 91, Issue 9; ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

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