Light Higgs and vector-like quarks without prejudice
A bstract Light vector-like quarks with non-renormalizable couplings to the Higgs are a common feature of models trying to address the electroweak (EW) hierarchy problem by treating the Higgs as a pseudo-goldstone boson of a global (approximate) symmetry. We systematically investigate the implicatio...
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| Veröffentlicht in: | The journal of high energy physics 2013-07, Vol.2013 (7), p.1-37, Article 155 |
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| container_title | The journal of high energy physics |
| container_volume | 2013 |
| creator | Fajfer, Svjetlana Greljo, Admir Kamenik, Jernej F. Mustać, Ivana |
| description | A
bstract
Light vector-like quarks with non-renormalizable couplings to the Higgs are a common feature of models trying to address the electroweak (EW) hierarchy problem by treating the Higgs as a pseudo-goldstone boson of a global (approximate) symmetry. We systematically investigate the implications of the leading dimension five operators on Higgs phenomenology in presence of dynamical up- and down-type weak singlet as well as weak doublet vector-like quarks. After taking into account constraints from precision EW and flavour observables we show that contrary to the renormalizable models, significant modifications of Higgs properties are still possible and could shed light on the role of vector-like quarks in solutions to the EW hierarchy problem. We also briefly discuss implications of higher dimensional operators for direct vector-like quark searches at the LHC. |
| doi_str_mv | 10.1007/JHEP07(2013)155 |
| format | Article |
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bstract
Light vector-like quarks with non-renormalizable couplings to the Higgs are a common feature of models trying to address the electroweak (EW) hierarchy problem by treating the Higgs as a pseudo-goldstone boson of a global (approximate) symmetry. We systematically investigate the implications of the leading dimension five operators on Higgs phenomenology in presence of dynamical up- and down-type weak singlet as well as weak doublet vector-like quarks. After taking into account constraints from precision EW and flavour observables we show that contrary to the renormalizable models, significant modifications of Higgs properties are still possible and could shed light on the role of vector-like quarks in solutions to the EW hierarchy problem. We also briefly discuss implications of higher dimensional operators for direct vector-like quark searches at the LHC.</description><identifier>ISSN: 1029-8479</identifier><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP07(2013)155</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Approximation ; Bosons ; Classical and Quantum Gravitation ; Couplings ; Elementary Particles ; Flavor (particle physics) ; Hierarchies ; High energy physics ; Large Hadron Collider ; Operators ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Quarks ; Relativity Theory ; String Theory</subject><ispartof>The journal of high energy physics, 2013-07, Vol.2013 (7), p.1-37, Article 155</ispartof><rights>SISSA, Trieste, Italy 2013</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c409t-563b963509bef3a02296cb5bfbbd3abd78c06d9a1ad74e821304727875426da93</citedby><cites>FETCH-LOGICAL-c409t-563b963509bef3a02296cb5bfbbd3abd78c06d9a1ad74e821304727875426da93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/JHEP07(2013)155$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://doi.org/10.1007/JHEP07(2013)155$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41120,41488,42189,42557,51319,51576</link.rule.ids><linktorsrc>$$Uhttps://doi.org/10.1007/JHEP07(2013)155$$EView_record_in_Springer_Nature$$FView_record_in_$$GSpringer_Nature</linktorsrc></links><search><creatorcontrib>Fajfer, Svjetlana</creatorcontrib><creatorcontrib>Greljo, Admir</creatorcontrib><creatorcontrib>Kamenik, Jernej F.</creatorcontrib><creatorcontrib>Mustać, Ivana</creatorcontrib><title>Light Higgs and vector-like quarks without prejudice</title><title>The journal of high energy physics</title><addtitle>J. High Energ. Phys</addtitle><description>A
bstract
Light vector-like quarks with non-renormalizable couplings to the Higgs are a common feature of models trying to address the electroweak (EW) hierarchy problem by treating the Higgs as a pseudo-goldstone boson of a global (approximate) symmetry. We systematically investigate the implications of the leading dimension five operators on Higgs phenomenology in presence of dynamical up- and down-type weak singlet as well as weak doublet vector-like quarks. After taking into account constraints from precision EW and flavour observables we show that contrary to the renormalizable models, significant modifications of Higgs properties are still possible and could shed light on the role of vector-like quarks in solutions to the EW hierarchy problem. 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bstract
Light vector-like quarks with non-renormalizable couplings to the Higgs are a common feature of models trying to address the electroweak (EW) hierarchy problem by treating the Higgs as a pseudo-goldstone boson of a global (approximate) symmetry. We systematically investigate the implications of the leading dimension five operators on Higgs phenomenology in presence of dynamical up- and down-type weak singlet as well as weak doublet vector-like quarks. After taking into account constraints from precision EW and flavour observables we show that contrary to the renormalizable models, significant modifications of Higgs properties are still possible and could shed light on the role of vector-like quarks in solutions to the EW hierarchy problem. We also briefly discuss implications of higher dimensional operators for direct vector-like quark searches at the LHC.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/JHEP07(2013)155</doi><tpages>37</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Approximation Bosons Classical and Quantum Gravitation Couplings Elementary Particles Flavor (particle physics) Hierarchies High energy physics Large Hadron Collider Operators Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Quarks Relativity Theory String Theory |
| title | Light Higgs and vector-like quarks without prejudice |
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