Implications of a modified Higgs to diphoton decay width
A bstract Motivated by recent results from Higgs searches at the Large Hadron Collider, we consider possibilities to enhance the diphoton decay width of the Higgs boson over the Standard Model expectation, without modifying either its production rate or the partial widths in the WW and ZZ channels....
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| Veröffentlicht in: | J. High Energy Phys 2012-08, Vol.2012 (8), Article 60 |
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| container_title | J. High Energy Phys |
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| creator | Carena, Marcela Low, Ian Wagner, Carlos E. M. |
| description | A
bstract
Motivated by recent results from Higgs searches at the Large Hadron Collider, we consider possibilities to enhance the diphoton decay width of the Higgs boson over the Standard Model expectation, without modifying either its production rate or the partial widths in the
WW
and
ZZ
channels. Studying effects of new charged scalars, fermions and vector bosons, we find that significant variations in the diphoton width may be possible if the new particles have light masses of the order of a few hundred GeV and sizeable couplings to the Higgs boson. Such couplings could arise naturally if there is large mass mixing between two charged particles that is induced by the Higgs vacuum expectation value. In addition, there is generically also a shift in the
Zγ
partial width, which in the case of new vector bosons tends to be of similar magnitude as the shift in the diphoton partial width, but smaller in other cases. Therefore simultaneous measurements in these two channels could reveal properties of new charged particles at the electroweak scale. |
| doi_str_mv | 10.1007/JHEP08(2012)060 |
| format | Article |
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bstract
Motivated by recent results from Higgs searches at the Large Hadron Collider, we consider possibilities to enhance the diphoton decay width of the Higgs boson over the Standard Model expectation, without modifying either its production rate or the partial widths in the
WW
and
ZZ
channels. Studying effects of new charged scalars, fermions and vector bosons, we find that significant variations in the diphoton width may be possible if the new particles have light masses of the order of a few hundred GeV and sizeable couplings to the Higgs boson. Such couplings could arise naturally if there is large mass mixing between two charged particles that is induced by the Higgs vacuum expectation value. In addition, there is generically also a shift in the
Zγ
partial width, which in the case of new vector bosons tends to be of similar magnitude as the shift in the diphoton partial width, but smaller in other cases. Therefore simultaneous measurements in these two channels could reveal properties of new charged particles at the electroweak scale.</description><identifier>ISSN: 1029-8479</identifier><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP08(2012)060</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Bosons ; Channels ; Charged particles ; Classical and Quantum Gravitation ; Couplings ; Decay ; Elementary Particles ; Fermions ; Higgs bosons ; High energy physics ; Large Hadron Collider ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Quarks ; Relativity Theory ; Scalars ; String Theory</subject><ispartof>J. High Energy Phys, 2012-08, Vol.2012 (8), Article 60</ispartof><rights>SISSA 2012</rights><rights>SISSA 2012.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c444t-b38c44a7c0196d9c6db99a3d4052249995d290180d4098539a638f3845da23a53</citedby><cites>FETCH-LOGICAL-c444t-b38c44a7c0196d9c6db99a3d4052249995d290180d4098539a638f3845da23a53</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/JHEP08(2012)060$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/JHEP08(2012)060$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,885,27924,27925,41120,41488,42189,42557,51319,51576</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1063744$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Carena, Marcela</creatorcontrib><creatorcontrib>Low, Ian</creatorcontrib><creatorcontrib>Wagner, Carlos E. M.</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States)</creatorcontrib><title>Implications of a modified Higgs to diphoton decay width</title><title>J. High Energy Phys</title><addtitle>J. High Energ. Phys</addtitle><description>A
bstract
Motivated by recent results from Higgs searches at the Large Hadron Collider, we consider possibilities to enhance the diphoton decay width of the Higgs boson over the Standard Model expectation, without modifying either its production rate or the partial widths in the
WW
and
ZZ
channels. Studying effects of new charged scalars, fermions and vector bosons, we find that significant variations in the diphoton width may be possible if the new particles have light masses of the order of a few hundred GeV and sizeable couplings to the Higgs boson. Such couplings could arise naturally if there is large mass mixing between two charged particles that is induced by the Higgs vacuum expectation value. In addition, there is generically also a shift in the
Zγ
partial width, which in the case of new vector bosons tends to be of similar magnitude as the shift in the diphoton partial width, but smaller in other cases. Therefore simultaneous measurements in these two channels could reveal properties of new charged particles at the electroweak scale.</description><subject>Bosons</subject><subject>Channels</subject><subject>Charged particles</subject><subject>Classical and Quantum Gravitation</subject><subject>Couplings</subject><subject>Decay</subject><subject>Elementary Particles</subject><subject>Fermions</subject><subject>Higgs bosons</subject><subject>High energy physics</subject><subject>Large Hadron Collider</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Quantum Physics</subject><subject>Quarks</subject><subject>Relativity Theory</subject><subject>Scalars</subject><subject>String Theory</subject><issn>1029-8479</issn><issn>1029-8479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kE1LAzEQhoMoWKtnr0Evelg7-djd5Cil2kpBD3oOaZJtU9pN3aRI_70pK-jF0wzD874MD0LXBB4IQD16mU7eQNxRIPQeKjhBAwJUFoLX8vTPfo4uYlwDkJJIGCAx2-423ujkQxtxaLDG22B9453FU79cRpwCtn63Cim02DqjD_jL27S6RGeN3kR39TOH6ONp8j6eFvPX59n4cV4YznkqFkzkRdcGiKysNJVdSKmZ5VBSyqWUpaUSiIB8kaJkUldMNEzw0mrKdMmG6KbvDTF5FY1PzqxMaFtnkiJQsZrzDN320K4Ln3sXk1qHfdfmvxRlUjBOJTlSo54yXYixc43adX6ru0PuUUeHqneojg5VdpgT0CdiJtul6357_4t8Ay_bcBg</recordid><startdate>20120801</startdate><enddate>20120801</enddate><creator>Carena, Marcela</creator><creator>Low, Ian</creator><creator>Wagner, Carlos E. 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M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c444t-b38c44a7c0196d9c6db99a3d4052249995d290180d4098539a638f3845da23a53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Bosons</topic><topic>Channels</topic><topic>Charged particles</topic><topic>Classical and Quantum Gravitation</topic><topic>Couplings</topic><topic>Decay</topic><topic>Elementary Particles</topic><topic>Fermions</topic><topic>Higgs bosons</topic><topic>High energy physics</topic><topic>Large Hadron Collider</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Quantum Physics</topic><topic>Quarks</topic><topic>Relativity Theory</topic><topic>Scalars</topic><topic>String Theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Carena, Marcela</creatorcontrib><creatorcontrib>Low, Ian</creatorcontrib><creatorcontrib>Wagner, Carlos E. M.</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States)</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>OSTI.GOV</collection><jtitle>J. 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bstract
Motivated by recent results from Higgs searches at the Large Hadron Collider, we consider possibilities to enhance the diphoton decay width of the Higgs boson over the Standard Model expectation, without modifying either its production rate or the partial widths in the
WW
and
ZZ
channels. Studying effects of new charged scalars, fermions and vector bosons, we find that significant variations in the diphoton width may be possible if the new particles have light masses of the order of a few hundred GeV and sizeable couplings to the Higgs boson. Such couplings could arise naturally if there is large mass mixing between two charged particles that is induced by the Higgs vacuum expectation value. In addition, there is generically also a shift in the
Zγ
partial width, which in the case of new vector bosons tends to be of similar magnitude as the shift in the diphoton partial width, but smaller in other cases. Therefore simultaneous measurements in these two channels could reveal properties of new charged particles at the electroweak scale.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/JHEP08(2012)060</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Bosons Channels Charged particles Classical and Quantum Gravitation Couplings Decay Elementary Particles Fermions Higgs bosons High energy physics Large Hadron Collider Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Quarks Relativity Theory Scalars String Theory |
| title | Implications of a modified Higgs to diphoton decay width |
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