2024-03-29T13:57:38Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/964982016-02-18T02:41:03Zcom_10261_61com_10261_4col_10261_314
DIGITAL.CSIC
author
Jung, Martin
author
Pich, Antonio
funder
SCOAP
2014-05-12T09:03:03Z
2014-05-12T09:03:03Z
2014-04-10
Journal of High Energy Physics 2014: 107 (2014)
http://hdl.handle.net/10261/96498
10.1007/JHEP04(2014)076
1029-8479
Electric dipole moments are extremely sensitive probes for additional sources of CP violation in new physics models. Specifically, they have been argued in the past to exclude new CP-violating phases in two-Higgs-doublet models. Since recently models including such phases have been discussed widely, we revisit the available constraints in the presence of mechanisms which are typically invoked to evade flavour-changing neutral currents. To that aim, we start by assessing the necessary calculations on the hadronic, nuclear and atomic/molecular level, deriving expressions with conservative error estimates. Their phenomenological analysis in the context of two-Higgs-doublet models yields strong constraints, in some cases weakened by a cancellation mechanism among contributions from neutral scalars. While the corresponding parameter combinations do not yet have to be unnaturally small, the constraints are likely to preclude large effects in other CP-violating observables. Nevertheless, the generically expected contributions to electric dipole moments in this class of models lie within the projected sensitivity of the next-generation experiments.
eng
openAccess
Electric dipole moments in two-Higgs-doublet models
artÃculo
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dipole_moments_Jung.pdf.txt
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dipole_moments_Jung.pdf.txt