A direct search for the standard model Higgs boson decaying to a pair of charm quarks is presented. Associated production of the Higgs and Z bosons, in the decay mode ZH -> l(+)l(-) cc is studied. A data set with an integrated luminosity of 36.1 fb(-1) of pp collisions at root s = 13TeV recorded by the ATLAS experiment at the LHC is used. The H -> cc signature is identified using charm-tagging algorithms. The observed (expected) upper limit on sigma(pp -> ZH) x B(H -> cc) is 2.7 (3.9(-2.1)(+2.1) ) pb at the 95\% confidence level for a Higgs boson mass of 125 GeV, while the standard model value is 26 fb.
Search for the Decay of the Higgs Boson to Charm Quarks with the ATLAS Experiment / Aloisio, A., Alviggi, M., Canale, V., Della Pietra, M., Merola, L., Conventi, F., Rossi, E., Carlino, G., de Asmundis, R., Di Donato, C., Doria, A., Iengo, P., Izzo, V., Perrella, S., Sekhniaidze, G., Cirotto, F., Atlas, C.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 120:21(2018). [10.1103/PhysRevLett.120.211802]
Search for the Decay of the Higgs Boson to Charm Quarks with the ATLAS Experiment
Aloisio, Alberto;Alviggi, MariaGrazia;Canale, Vincenzo;Della Pietra, Massimo;Merola, Leonardo;Conventi, Francesco;Rossi, Elvira;de Asmundis, Riccardo;Perrella, Sabrina;Cirotto, Francesco;
2018
Abstract
A direct search for the standard model Higgs boson decaying to a pair of charm quarks is presented. Associated production of the Higgs and Z bosons, in the decay mode ZH -> l(+)l(-) cc is studied. A data set with an integrated luminosity of 36.1 fb(-1) of pp collisions at root s = 13TeV recorded by the ATLAS experiment at the LHC is used. The H -> cc signature is identified using charm-tagging algorithms. The observed (expected) upper limit on sigma(pp -> ZH) x B(H -> cc) is 2.7 (3.9(-2.1)(+2.1) ) pb at the 95\% confidence level for a Higgs boson mass of 125 GeV, while the standard model value is 26 fb.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
