EPJ

2023 Impact factor 4.2
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 4, 363-365
DOI 10.1007/s100529800773

On spontaneous CP-violation in the Higgs sector

Oleg Lebedev

Virginia Polytechnic Institute and State University, Department of Physics, Institute for Particle Physics and Astrophysics, Blacksburg, Virginia 24061, USA

Received: 15 July 1997 / Published online: 26 February 1998

Abstract
We consider the behaviour of the axion mass as a function of Higgs coupling constants. The analysis is significantly simplified when we identify the axion field with the phase difference of the Higgs neutral components. Spontaneous CP-violation is induced by VEV of the axion field. The estimation of the axion mass for any values of $\delta _{\rm CP}$and $\tan \beta$ shows inconsistency of MSSM with the present experimental results.

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