Non-linear Higgs portal to dark matter
Entity
UAM. Departamento de Física TeóricaPublisher
Springer Verlag; SISSADate
2016-04-21Citation
10.1007/JHEP04(2016)141
Journal of High Energy Physics 2016.4 (2016): 141
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP04(2016)141Funded by
The work of K.M. and V.S. is supported by the Science Technology and Facilities Council (STFC) under grant number ST/L000504/1. I.B. research was supported by an ESR contract of the EU network FP7 ITN INVISIBLES (Marie Curie Actions, PITN-GA-2011-289442). I.B., M.B.G., L.M., R.dR. acknowledge partial support of the European Union network FP7 ITN INVISIBLES, of CiCYT through the project FPA2012-31880 and of the Spanish MINECO’s “Centro de Excelencia Severo Ochoa” Programme under grant SEV-2012-0249. M.B.G. and L.M. acknowledge partial support by a grant from the Simons Foundation and the Aspen Center for Physics, where part of this work has been developed, which is supported by National Science Foundation grant PHY-1066293. J.M.N. is supported by the People Programme (Marie Curie Actions) of the European Union Seventh Framework Programme (FP7/2007-2013) under REA grant agreement PIEF-GA-2013-625809Project
info:eu-repo/grantAgreement/EC/FP7/289442; Gobierno de España. FPA2012-31880; Gobierno de España. SEV-2012-0249; info:eu-repo/grantAgreement/EC/FP7/625809Editor's Version
http://dx.doi.org/10.1007/JHEP04(2016)141Subjects
Beyond Standard Model; Effective field theories; Higgs Physics; FísicaNote
Journal of High Energy Physics 2016.4 (2016): 141 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Rights
© 2016, The Author(s)Abstract
The Higgs portal to scalar Dark Matter is considered in the context of nonlinearly realised electroweak symmetry breaking. We determine the dominant interactions of gauge bosons and the physical Higgs particle h to a scalar singlet Dark Matter candidate. Phenomenological consequences are also studied in detail, including the possibility of distinguishing this scenario from the standard Higgs portal in which the electroweak symmetry breaking is linearly realised. Two features of significant impact are: i) the connection between the electroweak scale v and the Higgs particle departs from the (v + h) functional dependence, as the Higgs field is not necessarily an exact electroweak doublet; ii) the presence of specific couplings that arise at different order in the non-linear and in the linear expansions. These facts deeply affect the Dark Matter relic abundance, as well as the expected signals in direct and indirect searches and collider phenomenology, where Dark Matter production rates are enhanced with respect to the standard portal
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Google Scholar:Brivio, Ilaria
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Gavela, M.B.
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Merlo, Luca
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Mimasu, K.
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No Redondo, José Miguel
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Del Rey, R.
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Sanz, V.
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