作者
Albert M Sirunyan, Armen Tumasyan, Wolfgang Adam, Federico Ambrogi, Thomas Bergauer, Johannes Brandstetter, Marko Dragicevic, Janos Erö, Alberto Escalante Del Valle, Martin Flechl, Rudolf Fruehwirth, Manfred Jeitler, Natascha Krammer, Ilse Krätschmer, Dietrich Liko, Thomas Madlener, Ivan Mikulec, Navid Rad, Jochen Schieck, Robert Schöfbeck, Markus Spanring, Daniel Spitzbart, Wolfgang Waltenberger, C-E Wulz, Mateusz Zarucki, Vladimir Drugakov, MR Darwish, EA De Wolf, D Di Croce, X Janssen, A Lelek, M Pieters, H Rejeb Sfar, H Van Haevermaet, P Van Mechelen, S Van Putte, F Blekman, ES Bols, SS Chhibra, J D’Hondt, J De Clercq, D Lontkovskyi, S Lowette, I Marchesini, S Moortgat, Q Python, K Skovpen, S Tavernier, W Van Doninck, P Van Mulders, D Beghin, B Bilin, H Brun, B Clerbaux, G De Lentdecker, H Delannoy, B Dorney, L Favart, A Grebenyuk, AK Kalsi, A Popov, N Postiau, E Starling, L Thomas, C Vander Velde, P Vanlaer, D Vannerom, Tom Cornelis, Didar Dobur, Illia Khvastunov, M Niedziela, Christos Roskas, D Trocino, Michael Tytgat, Willem Verbeke, B Vermassen, M Vit, Nikolaos Zaganidis, O Bondu, G Bruno, C Caputo, P David, C Delaere, M Delcourt, A Giammanco, V Lemaitre, A Magitteri, J Prisciandaro, A Saggio, M Vidal Marono, P Vischia, J Zobec, FL Alves, GA Alves, G Correia Silva, C Hensel, A Moraes, P Rebello Teles, E Belchior Batista Das Chagas, W Carvalho, J Chinellato, E Coelho, EM Da Costa, GG Da Silveira, D De Jesus Damiao, C De Oliveira Martins, S Fonseca De Souza, LM Huertas Guativa, H Malbouisson, J Martins, D Matos Figueiredo, M Medina Jaime, M Melo De Almeida, C Mora Herrera, L Mundim, H Nogima, WL Prado Da Silva, LJ Sanchez Rosas, A Santoro, A Sznajder, M Thiel, EJ Tonelli Manganote, F Torres Da Silva De Araujo, A Vilela Pereira, CA Bernardes, L Calligaris, TR Fernandez Perez Tomei, EM Gregores, DS Lemos, PG Mercadante, SF Novaes, SandraS Padula, A Aleksandrov, G Antchev, R Hadjiiska, P Iaydjiev, M Misheva, M Rodozov, M Shopova, G Sultanov, M Bonchev, A Dimitrov, T Ivanov, L Litov, B Pavlov, P Petkov, W Fang, X Gao, L Yuan, GM Chen
发表日期
2019/10
期刊
Journal of High Energy Physics
卷号
2019
期号
10
页码范围
1-37
出版商
Springer Berlin Heidelberg
简介
A search is presented for a Higgs boson that is produced in association with a Z boson and that decays to an undetected particle together with an isolated photon. The search is performed by the CMS Collaboration at the Large Hadron Collider using a data set corresponding to an integrated luminosity of 137 fb− 1 recorded at a center-of-mass energy of 13 TeV. 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 associated Higgs and Z boson production and the branching fraction for such a Higgs boson decay, as a function of the Higgs boson mass. For a mass of 125 GeV, assuming the standard model production cross section, this corresponds to an observed (expected) upper limit on …
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