CP violation and the H-A lineshape

Details CP violation and the H-A lineshape CP violation and the H-A lineshape

2007-11-06

arxiv.org/abs/0711.0935v1

J.Phys.Conf.Ser.110:072031,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 1 figure, based on talk given at the 2007 Europhysics Conference on High Energy Physics, Manchester, 19-25 July

Scientific paper

10.1088/1742-6596/110/7/072031

In two-Higgs doublet models (and particularly in the MSSM) the CP-even (H) and CP-odd (A) neutral scalars are nearly degenerate in mass, and their s-channel production would lead to nearly overlapping resonances. CP-violating effects may connect these two Higgs bosons, giving origin to one-loop particle mixing, which, due to their mass proximity, can be resonantly enhanced, altering their lineshape significantly. We show that, in general, the effect of such a CP-violating mixing cannot be mimicked by (or be re-absorbed into) a simple redefinition of the H and A masses in the context of a CP-conserving model. Specifically, the effects of the CP-mixing are such that, either the mass-splitting of the H and A bosons lies outside the range allowed by the theory in the absence of CP-mixing, and/or the detailed energy dependence of the produced lineshape is clearly different from the one obtained by redefining the masses, but not allowing any mixing.

Affiliated with

Also associated with

No associations

Rating

CP violation and the H-A lineshape does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with CP violation and the H-A lineshape, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CP violation and the H-A lineshape will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-134902