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

• Published in: The European physical journal. C, Particles and fields Particles and fields, 2022-04, Vol.82 (4)
• Main Authors: 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: Article
• Language: English
• Subjects: 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
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-022-10127-0

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.