Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays
A search for a new charged particle X with mass between 0.3 and 2.0 TeV decaying to a W boson and a photon is presented, using proton-proton collision data at a center-of-mass energy of 13 TeV, collected by the CMS experiment and corresponding to an integrated luminosity of 138 fb−1. Particle X has...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2024
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| Online Access: | https://hdl.handle.net/1721.1/157391 |
| _version_ | 1824458248637382656 |
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| author | Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Hussain, P. S. Jeitler, M. Krammer, N. Li, A. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. |
| author2 | Massachusetts Institute of Technology. Laboratory for Nuclear Science |
| author_facet | Massachusetts Institute of Technology. Laboratory for Nuclear Science Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Hussain, P. S. Jeitler, M. Krammer, N. Li, A. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. |
| author_sort | Hayrapetyan, A. |
| collection | MIT |
| description | A search for a new charged particle X with mass between 0.3 and 2.0 TeV decaying to a W boson and a photon is presented, using proton-proton collision data at a center-of-mass energy of 13 TeV, collected by the CMS experiment and corresponding to an integrated luminosity of 138 fb−1. Particle X has electric charge ±1 and is assumed to have spin 0. The search is performed using the electron and muon decays of the W boson. No significant excess above the predicted background is observed. The upper limit at 95% confidence level on the product of the production cross section of the X and its branching fraction to a W boson and a photon is found to be 94 (137) fb for a 0.3 TeV resonance and 0.75 (0.81) fb for a 2.0 TeV resonance, for an X width-to-mass ratio of 0.01% (5%). This search presents the most stringent constraints to date on the existence of such resonances across the probed mass range. A statistical combination with an earlier study based on the hadronic decay mode of the W boson is also performed, and the upper limit at 95% confidence level for a 2.0 TeV resonance is reduced to 0.50 (0.63) fb for an X width-to-mass ratio of 0.01% (5%). |
| first_indexed | 2025-02-19T04:22:53Z |
| format | Article |
| id | mit-1721.1/157391 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2025-02-19T04:22:53Z |
| publishDate | 2024 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1573912025-01-05T04:41:54Z Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Hussain, P. S. Jeitler, M. Krammer, N. Li, A. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Massachusetts Institute of Technology. Laboratory for Nuclear Science A search for a new charged particle X with mass between 0.3 and 2.0 TeV decaying to a W boson and a photon is presented, using proton-proton collision data at a center-of-mass energy of 13 TeV, collected by the CMS experiment and corresponding to an integrated luminosity of 138 fb−1. Particle X has electric charge ±1 and is assumed to have spin 0. The search is performed using the electron and muon decays of the W boson. No significant excess above the predicted background is observed. The upper limit at 95% confidence level on the product of the production cross section of the X and its branching fraction to a W boson and a photon is found to be 94 (137) fb for a 0.3 TeV resonance and 0.75 (0.81) fb for a 2.0 TeV resonance, for an X width-to-mass ratio of 0.01% (5%). This search presents the most stringent constraints to date on the existence of such resonances across the probed mass range. A statistical combination with an earlier study based on the hadronic decay mode of the W boson is also performed, and the upper limit at 95% confidence level for a 2.0 TeV resonance is reduced to 0.50 (0.63) fb for an X width-to-mass ratio of 0.01% (5%). 2024-10-21T18:19:27Z 2024-10-21T18:19:27Z 2024-09-25 2024-10-06T03:14:13Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/157391 The CMS collaboration., Hayrapetyan, A., Tumasyan, A. et al. Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays. J. High Energ. Phys. 2024, 186 (2024). PUBLISHER_CC en https://doi.org/10.1007/JHEP09(2024)186 Journal of High Energy Physics Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Hayrapetyan, A. Tumasyan, A. Adam, W. Andrejkovic, J. W. Bergauer, T. Chatterjee, S. Damanakis, K. Dragicevic, M. Hussain, P. S. Jeitler, M. Krammer, N. Li, A. Liko, D. Mikulec, I. Schieck, J. Schöfbeck, R. Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays |
| title | Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays |
| title_full | Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays |
| title_fullStr | Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays |
| title_full_unstemmed | Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays |
| title_short | Search for a resonance decaying to a W boson and a photon in proton-proton collisions at √s = 13 TeV using leptonic W boson decays |
| title_sort | search for a resonance decaying to a w boson and a photon in proton proton collisions at √s 13 tev using leptonic w boson decays |
| url | https://hdl.handle.net/1721.1/157391 |
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