Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV
Abstract A search is presented for a Higgs boson that is produced via vector boson fusion and that decays to an undetected particle and an isolated photon. The search is performed by the CMS collaboration at the LHC, using a data set corresponding to an integrat...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/132053 |
| _version_ | 1811076845846659072 |
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| author | Sirunyan, A. M. Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Sirunyan, A. M. Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. |
| author_sort | Sirunyan, A. M. |
| collection | MIT |
| description | Abstract
A search is presented for a Higgs boson that is produced via vector boson fusion and that decays to an undetected particle and an isolated photon. The search is performed by the CMS collaboration at the LHC, using a data set corresponding to an integrated luminosity of 130 fb−1, recorded at a center-of-mass energy of 13 TeV in 2016–2018. No significant excess of events above the expectation from the standard model background is found. The results are interpreted in the context of a theoretical model in which the undetected particle is a massless dark photon. An upper limit is set on the product of the cross section for production via vector boson fusion and the branching fraction for such a Higgs boson decay, as a function of the Higgs boson mass. For a Higgs boson mass of 125 GeV, assuming the standard model production rates, the observed (expected) 95% confidence level upper limit on the branching fraction is 3.5 (2.8)%. This is the first search for such decays in the vector boson fusion channel. Combination with a previous search for Higgs bosons produced in association with a Z boson results in an observed (expected) upper limit on the branching fraction of 2.9 (2.1)% at 95% confidence level. |
| first_indexed | 2024-09-23T10:28:52Z |
| format | Article |
| id | mit-1721.1/132053 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:28:52Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1320532023-12-22T20:30:41Z Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV Sirunyan, A. M. Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. Massachusetts Institute of Technology. Department of Physics Abstract A search is presented for a Higgs boson that is produced via vector boson fusion and that decays to an undetected particle and an isolated photon. The search is performed by the CMS collaboration at the LHC, using a data set corresponding to an integrated luminosity of 130 fb−1, recorded at a center-of-mass energy of 13 TeV in 2016–2018. No significant excess of events above the expectation from the standard model background is found. The results are interpreted in the context of a theoretical model in which the undetected particle is a massless dark photon. An upper limit is set on the product of the cross section for production via vector boson fusion and the branching fraction for such a Higgs boson decay, as a function of the Higgs boson mass. For a Higgs boson mass of 125 GeV, assuming the standard model production rates, the observed (expected) 95% confidence level upper limit on the branching fraction is 3.5 (2.8)%. This is the first search for such decays in the vector boson fusion channel. Combination with a previous search for Higgs bosons produced in association with a Z boson results in an observed (expected) upper limit on the branching fraction of 2.9 (2.1)% at 95% confidence level. 2021-09-20T17:41:40Z 2021-09-20T17:41:40Z 2021-03-01 2021-03-14T04:29:43Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/132053 Journal of High Energy Physics. 2021 Mar 01;2021(3):11 PUBLISHER_CC en https://doi.org/10.1007/JHEP03(2021)011 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Sirunyan, A. M. Tumasyan, A. Adam, W. Bergauer, T. Dragicevic, M. Erö, J. Escalante Del Valle, A. Frühwirth, R. Jeitler, M. Krammer, N. Lechner, L. Liko, D. Mikulec, I. Pitters, F. M. Rad, N. Schieck, J. Schöfbeck, R. Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title | Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full | Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_fullStr | Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_full_unstemmed | Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_short | Search for dark photons in Higgs boson production via vector boson fusion in proton-proton collisions at s $$ \sqrt{s} $$ = 13 TeV |
| title_sort | search for dark photons in higgs boson production via vector boson fusion in proton proton collisions at s sqrt s 13 tev |
| url | https://hdl.handle.net/1721.1/132053 |
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