Gluon-initiated associated production boosts Higgs physics
Analyses of boosted Higgs bosons from associated production comprise some of the main search channels for the Higgs boson at the LHC. The gluon-initiated gg → hZ subprocess has largely been ignored in phenomenological analyses of boosted associated production although this contribution is sizable as...
| Main Authors: | , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2014
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| Online Access: | http://hdl.handle.net/1721.1/87753 |
| _version_ | 1811086199750656000 |
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| author | Englert, Christoph Spannowsky, Michael McCullough, Matthew P. |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Englert, Christoph Spannowsky, Michael McCullough, Matthew P. |
| author_sort | Englert, Christoph |
| collection | MIT |
| description | Analyses of boosted Higgs bosons from associated production comprise some of the main search channels for the Higgs boson at the LHC. The gluon-initiated gg → hZ subprocess has largely been ignored in phenomenological analyses of boosted associated production although this contribution is sizable as the p[subscript T] spectrum for this process is maximized in the boosted regime due to the top quark loop threshold. In this paper, we discuss this contribution to boosted pp → hZ analyses in detail. We find there are previously overlooked modifications of standard model Higgs rates at the LHC which depend on the p[subscript T] cuts applied and can be significant. There are also important consequences for physics beyond the standard model as the gg → hZ process introduces significant dependence on the magnitude and sign of the Higgs-top quark coupling c[subscript t], which is overlooked if it is assumed that associated production depends only on the Higgs-Z boson coupling as c[2 over V]. This new dependence on c[subscript t] impacts interpretations of Higgs rates in the contexts of supersymmetry, two Higgs doublet models, and general scenarios with modified couplings. We suggest that these effects be included in current and future LHC boosted Higgs analyses. |
| first_indexed | 2024-09-23T13:22:23Z |
| format | Article |
| id | mit-1721.1/87753 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:22:23Z |
| publishDate | 2014 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/877532022-09-28T13:43:16Z Gluon-initiated associated production boosts Higgs physics Englert, Christoph Spannowsky, Michael McCullough, Matthew P. Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics McCullough, Matthew P. Analyses of boosted Higgs bosons from associated production comprise some of the main search channels for the Higgs boson at the LHC. The gluon-initiated gg → hZ subprocess has largely been ignored in phenomenological analyses of boosted associated production although this contribution is sizable as the p[subscript T] spectrum for this process is maximized in the boosted regime due to the top quark loop threshold. In this paper, we discuss this contribution to boosted pp → hZ analyses in detail. We find there are previously overlooked modifications of standard model Higgs rates at the LHC which depend on the p[subscript T] cuts applied and can be significant. There are also important consequences for physics beyond the standard model as the gg → hZ process introduces significant dependence on the magnitude and sign of the Higgs-top quark coupling c[subscript t], which is overlooked if it is assumed that associated production depends only on the Higgs-Z boson coupling as c[2 over V]. This new dependence on c[subscript t] impacts interpretations of Higgs rates in the contexts of supersymmetry, two Higgs doublet models, and general scenarios with modified couplings. We suggest that these effects be included in current and future LHC boosted Higgs analyses. 2014-06-12T18:42:24Z 2014-06-12T18:42:24Z 2014-01 2013-11 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/87753 Englert, Christoph, Matthew McCullough, and Michael Spannowsky. “Gluon-Initiated Associated Production Boosts Higgs Physics.” Phys. Rev. D 89, no. 1 (January 2014). © 2014 American Physical Society en_US http://dx.doi.org/10.1103/PhysRevD.89.013013 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society American Physical Society |
| spellingShingle | Englert, Christoph Spannowsky, Michael McCullough, Matthew P. Gluon-initiated associated production boosts Higgs physics |
| title | Gluon-initiated associated production boosts Higgs physics |
| title_full | Gluon-initiated associated production boosts Higgs physics |
| title_fullStr | Gluon-initiated associated production boosts Higgs physics |
| title_full_unstemmed | Gluon-initiated associated production boosts Higgs physics |
| title_short | Gluon-initiated associated production boosts Higgs physics |
| title_sort | gluon initiated associated production boosts higgs physics |
| url | http://hdl.handle.net/1721.1/87753 |
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