Search for low-mass dilepton resonances in Higgs boson decays to four-lepton final states in proton–proton collisions at s=13TeV

A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a Z boson. The search uses proton–proton collision data collected with the CMS dete...

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Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2022-04, Vol.82 (4)
Hauptverfasser:	Bols, E. S., Starling, E., Gruchala, M., Tytgat, M., MALBOUISSON, H. BRANDAO, Liu, Z., Antunovic, Z., Attikis, A., Rander, J., Titov, M., Donckt, M. Vander, Fischer, B., Hlushchenko, O., Nowack, A., Jomhari, N. Z., Lohmann, W., Dreyer, T., Haller, J., Hinzmann, A., Karavdina, A., Malara, A., Butz, E., Chwalek, T., Kontaxakis, P., Manousakis-katsikakis, A., Manitara, K., Papadopoulos, I., Dash, D., Sahoo, D. K., Singh, J. B., Kumar, A., Sahu, B., Dube, S., De Filippis, N., My, S., Abbiendi, G., Piccolo, D., Pedrini, D., Ragazzi, S., Piccinelli, A., Castaldi, R., Palla, F., Bartosik, N., Demaria, N., Kiani, B., Salvatico, R., Lee, J., Moon, C. S., Radburn-Smith, B. C., Song, D., Vaitkevicius, A., Ayala, G., Herrera, C. A. Mondragon, Bialkowska, H., Bunin, P., Uvarov, L., Belyaev, A., Holgado, J. León, Liyanage, K., d’Enterria, D., Dobson, M., Fallavollita, F., Mersi, S., Orfanelli, S., Petrucciani, G., Verzetti, M., Rohe, T., Pigazzini, S., Reitenspiess, T., Chen, P. H., Colling, D., Milosevic, V., Bartek, R., Yu, D., Pilot, J., Stone, B., Burt, K., Ovcharova, A., Wang, S., Lu, N., Spiropulu, M., Wittich, P., Elvira, V. D., Freeman, J., Hasegawa, S., O’Dell, V., Durgut, S., Bean, A., Jeng, G. Y., Sumorok, K., Wang, T. W., Francis, B., Kopp, G., Lath, A., Salur, S., Somalwar, S., Eusebi, R., Sheldon, P., Li, A., Sharma, V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Confidence intervals Elementary Particles Hadrons Heavy Ions Higgs bosons Large Hadron Collider Leptons Luminosity Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Particle collisions Particle decay Particle production Physics Physics and Astronomy Protons Quantum Field Theories Quantum Field Theory Quarks Regular Article - Experimental Physics Searching Solenoids Standard model (particle physics) String Theory
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Zusammenfassung:	A search for low-mass dilepton resonances in Higgs boson decays is conducted in the four-lepton final state. The decay is assumed to proceed via a pair of beyond the standard model particles, or one such particle and a Z boson. The search uses proton–proton collision data collected with the CMS detector at the CERN LHC, corresponding to an integrated luminosity of 137 fb - 1 , at a center-of-mass energy s = 13 TeV . No significant deviation from the standard model expectation is observed. Upper limits at 95% confidence level are set on model-independent Higgs boson decay branching fractions. Additionally, limits on dark photon and axion-like particle production, based on two specific models, are reported.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-022-10127-0