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CP violation and the H-A lineshape

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CP violation and the H-A lineshape

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dc.contributor.author Bernabeu Alberola, José
dc.contributor.author Binosi, Daniele
dc.contributor.author Papavassiliou, Joannis
dc.date.accessioned 2015-04-22T12:02:53Z
dc.date.available 2015-04-22T12:02:53Z
dc.date.issued 2008
dc.identifier.citation Bernabeu Alberola, José; Binosi, Daniele; Papavassiliou, Joannis (2008) CP violation and the H-A lineshape Journal of physics. Conference series 110 7 072031
dc.identifier.uri http://hdl.handle.net/10550/43273
dc.description.abstract 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.
dc.language.iso eng
dc.relation.ispartof Journal of physics. Conference series , 2008, vol. 110, num. 7, p. 072031
dc.subject Física
dc.title CP violation and the H-A lineshape
dc.type journal article es_ES
dc.date.updated 2015-04-22T12:02:53Z
dc.identifier.doi 10.1088/1742-6596/110/7/072031
dc.identifier.idgrec 051209
dc.rights.accessRights open access es_ES

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