The minimal linear σ model for the Goldstone Higgs
Entity
UAM. Departamento de Física TeóricaPublisher
Springer Verlag; SISSADate
2016-06-07Citation
10.1007/JHEP06(2016)038
Journal of High Energy Physics 2016.6 (2016): 38
ISSN
1029-8479 (online); 1126-6708 (print)DOI
10.1007/JHEP06(2016)038Funded by
The authors (each identified by the first letter of her/his last name) acknowledge partial financial support by the European Union through the FP7 ITN INVISIBLES (PITN-GA-2011-289442) (FGKMRS), by the Horizon2020 RISE InvisiblesPlus 690575 (FGKMRS), by CiCYT through the project FPA2012-31880 (GS), and by the Spanish MINECO through the Centro de excelencia Severo Ochoa Program under grant SEV-2012-0249 (GMS). The work of K.K. is supported by an ESR contract of the European Union network FP7 ITN INVISIBLES mentioned above. The work of S.S. is supported through the grant BES-2013-066480 of the Spanish MICINN and she also received support during from the Spanish MICINN grant EEBB-I-15-10242. We would also like to thank the Kavli Institute for Theoretical Physics — Santa Barbara (GM) (National Science Foundation grant PHY11-25915), the Mainz Institute for Theoretical Physics (M), the Physics Department of the University of California San Diego (S), the Aspen Center for Physics (GM) (National Science Foundation grant PHY-1066293 and the Simons Foundation) and the Institute for Theoretical Physics IFT-UAM/CSIC (F) for hospitality and/or partial support during the completion of this workProject
info:eu-repo/grantAgreement/EC/FP7/289442; Gobierno de España. FPA2012-31880; Gobierno de España. SEV-2012-0249; Gobierno de España. BES2013-066480; Gobierno de España. EEBB-I-15-10242; info:eu-repo/grantAgreement/EC/H2020/690575/EU//InvisiblesPlusEditor's Version
http://dx.doi.org/10.1007/JHEP06(2016)038Subjects
Higgs physics; Sigma models; FísicaNote
Journal of High Energy Physics 2016.6 (2016): 038 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA)Rights
© 2016, The Author(s)Abstract
In the context of the minimal SO(5) linear σ-model, a complete renormalizable Lagrangian -including gauge bosons and fermions- is considered, with the symmetry softly broken to SO(4). The scalar sector describes both the electroweak Higgs doublet and the singlet σ. Varying the σ mass would allow to sweep from the regime of perturbative ultraviolet completion to the non-linear one assumed in models in which the Higgs particle is a low-energy remnant of some strong dynamics. We analyze the phenomenological implications and constraints from precision observables and LHC data. Furthermore, we derive the d ≤ 6 effective Lagrangian in the limit of heavy exotic fermions
Files in this item
Google Scholar:Feruglio, F.
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Gavela, M.B.
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Kanshin, K.
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Machado, P.A.N.
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Rigolin, Stefano
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Saa, S.
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