Higgs in space!

We consider the possibility that the Higgs can be produced in dark matter annihilations, appearing as a line in the spectrum of gamma rays at an energy determined by the masses of the WIMP and the Higgs itself. We argue that this phenomenon occurs generally in models in which the the dark sector has...

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Detalles Bibliográficos
Autores: Taoso, Marco, Jackson, C. B., Servant, Géraldine, Shaughnessy, Gabe, Tait, Tim M. P.
Tipo de recurso: artículo
Fecha de publicación:2010
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::879b804da5a00635282e1ae9b7fdb656
Acceso en línea:http://hdl.handle.net/10261/24886
Access Level:acceso abierto
Palabra clave:Dark matter theory
Dark matter experiments
Gamma ray experiments
Cosmology of Theories beyond the SM
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spelling Higgs in space!Taoso, MarcoJackson, C. B.Servant, GéraldineShaughnessy, GabeTait, Tim M. P.Dark matter theoryDark matter experimentsGamma ray experimentsCosmology of Theories beyond the SMWe consider the possibility that the Higgs can be produced in dark matter annihilations, appearing as a line in the spectrum of gamma rays at an energy determined by the masses of the WIMP and the Higgs itself. We argue that this phenomenon occurs generally in models in which the the dark sector has large couplings to the most massive states of the SM and provide a simple example inspired by the Randall-Sundrum vision of dark matter, whose 4d dual corresponds to electroweak symmetry-breaking by strong dynamics which respect global symmetries that guarantee a stable WIMP. The dark matter is a Dirac fermion that couples to a Z' acting as a portal to the Standard Model through its strong coupling to top quarks. Annihilation into light standard model degrees of freedom is suppressed and generates a feeble continuum spectrum of gamma rays. Loops of top quarks mediate annihilation into gamma Z, gamma h, and gamma Z', providing a forest of lines in the spectrum. Such models can be probed by the Fermi/GLAST satellite and ground-based Air Cherenkov telescopes.The authors are grateful for inspiration and conversation involving Elliot Bloom, Marco Cirelli, Laura Covi, Abdelhak Djouadi, Michele Doro, Jim Henson, Alejandro Ibarra, Emmanuel Moulin, Simona Murgia, Pasquale Serpico, Jing Shu, and James Wells. We also thank Geneviève Bélanger and Sasha Pukhov for helping with MicrOMEGAs. This research is supported by the European Research Council Starting Grant Cosmo@LHC. T. Tait is grateful to the SLAC theory group for their extraordinary generosity during his many visits. Research at Argonne National Laboratory is supported in part by the Department of Energy under contract DE-AC02-06CH11357. Research at Northwestern University is supported in part by the Department of Energy under contract DE-FG02-91ER40684. The work of M. Taoso is partly supported by the Spanish grants FPA2008-00319 (MICINN) and PROMETEO/2009/091 (Generalitat Valenciana) and the European Council (Contract Number UNILHC PITN-GA-2009-237920).Peer reviewedInstitute of Physics Publishing201020102010info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_65012941826 bytesapplication/pdfhttp://hdl.handle.net/10261/24886reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/ 10.1088/1475-7516/2010/04/004info:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::879b804da5a00635282e1ae9b7fdb6562026-05-22T06:33:51Z
dc.title.none.fl_str_mv Higgs in space!
title Higgs in space!
spellingShingle Higgs in space!
Taoso, Marco
Dark matter theory
Dark matter experiments
Gamma ray experiments
Cosmology of Theories beyond the SM
title_short Higgs in space!
title_full Higgs in space!
title_fullStr Higgs in space!
title_full_unstemmed Higgs in space!
title_sort Higgs in space!
dc.creator.none.fl_str_mv Taoso, Marco
Jackson, C. B.
Servant, Géraldine
Shaughnessy, Gabe
Tait, Tim M. P.
author Taoso, Marco
author_facet Taoso, Marco
Jackson, C. B.
Servant, Géraldine
Shaughnessy, Gabe
Tait, Tim M. P.
author_role author
author2 Jackson, C. B.
Servant, Géraldine
Shaughnessy, Gabe
Tait, Tim M. P.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Dark matter theory
Dark matter experiments
Gamma ray experiments
Cosmology of Theories beyond the SM
topic Dark matter theory
Dark matter experiments
Gamma ray experiments
Cosmology of Theories beyond the SM
description We consider the possibility that the Higgs can be produced in dark matter annihilations, appearing as a line in the spectrum of gamma rays at an energy determined by the masses of the WIMP and the Higgs itself. We argue that this phenomenon occurs generally in models in which the the dark sector has large couplings to the most massive states of the SM and provide a simple example inspired by the Randall-Sundrum vision of dark matter, whose 4d dual corresponds to electroweak symmetry-breaking by strong dynamics which respect global symmetries that guarantee a stable WIMP. The dark matter is a Dirac fermion that couples to a Z' acting as a portal to the Standard Model through its strong coupling to top quarks. Annihilation into light standard model degrees of freedom is suppressed and generates a feeble continuum spectrum of gamma rays. Loops of top quarks mediate annihilation into gamma Z, gamma h, and gamma Z', providing a forest of lines in the spectrum. Such models can be probed by the Fermi/GLAST satellite and ground-based Air Cherenkov telescopes.
publishDate 2010
dc.date.none.fl_str_mv 2010
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/24886
url http://hdl.handle.net/10261/24886
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/ 10.1088/1475-7516/2010/04/004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 2941826 bytes
application/pdf
dc.publisher.none.fl_str_mv Institute of Physics Publishing
publisher.none.fl_str_mv Institute of Physics Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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