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Abstract: A search is reported for near-threshold structures in the Formula Presented invariant mass spectrum produced in proton-proton collisions at Formula Presented from data collected by the CMS experiment, corresponding to an integrated luminosity of Formula Presented. Three structures are found, and a model with quantum interference among these structures provides a good description of the data. A new structure is observed with a local significance above 5 standard deviations at a mass of Formula Presented. Another structure with even higher significance is found at a mass of Formula Presented, which is consistent with the Formula Presented resonance reported by the LHCb experiment and confirmed by the ATLAS experiment. Evidence for another new structure, with a local significance of 4.7 standard deviations, is found at a mass of Formula Presented. Results are also reported for a model without interference, which does not fit the data as well and shows mass shifts up to 150 MeV relative to the model with interference.
Fuente: Physical Review Letters, 2024, 132(11), 111901
Publisher: American Physical Society
Publication date: 01/03/2024
No. of pages: 20
Publication type: Article
DOI: 10.1103/PhysRevLett.132.111901
ISSN: 0031-9007,1079-7114
Publication Url: https://doi.org/10.1103/PhysRevLett.132.111901
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HAYRAPETYAN, A.
SERGIO BLANCO FERNANDEZ
JAVIER ANDRES BROCHERO CIFUENTES
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
JORGE DUARTE CAMPDERROS
MARCOS FERNANDEZ GARCIA
CELIA FERNANDEZ MADRAZO
GERVASIO GOMEZ GRAMUGLIO
CLARA LASAOSA GARCIA
CELSO MARTINEZ RIVERO
PABLO MARTINEZ RUIZ DEL ARBOL
FRANCISCO MATORRAS WEINIG
PABLO MATORRAS CUEVAS
EFREN NAVARRETE RAMOS
JONATAN PIEDRA GOMEZ
CEDRIC GERALD PRIEELS
LUCA SCODELLARO
IVAN VILA ALVAREZ
JESUS MANUEL VIZAN GARCIA
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