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Abstract: A search for narrow resonances decaying into dijet final states is performed on data from proton-proton collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 18.8 fb-1. The data were collected with the CMS detector using a novel technique called data scouting, in which the information associated with these selected events is much reduced, permitting collection of larger data samples. This technique enables CMS to record events containing jets at a rate of 1 kHz, by collecting the data from the high-level-trigger system. In this way, the sensitivity to low-mass resonances is increased significantly, allowing previously inaccessible couplings of new resonances to quarks and gluons to be probed. The resulting dijet mass distribution yields no evidence of narrow resonances. Upper limits are presented on the resonance cross sections as a function of mass, and compared with a variety of models predicting narrow resonances. The limits are translated into upper limits on the coupling of a leptophobic resonance ZB? to quarks, improving on the results obtained by previous experiments for the mass range from 500 to 800 GeV.
Fuente: Phys. Rev. Lett. Vol. 117, Num. 3, Art. Num. 031802, (2016)
Editorial: American Physical Society
Fecha de publicación: 01/07/2016
Nº de páginas: 17
Tipo de publicación: Artículo de Revista
DOI: 10.1103/PhysRevLett.117.031802
ISSN: 0031-9007,1079-7114
Url de la publicación: https://doi.org/10.1103/PhysRevLett.117.031802
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KHACHATRYAN, VLADIMIR
JOSE IBAN CABRILLO BARTOLOME
ALICIA CALDERON TAZON
JUAN RAMON CASTIÑEIRAS DE SAA
ESTEBAN CURRAS RIVERA
MARCOS FERNANDEZ GARCIA
JUAN GARCIA FERRERO
GERVASIO GOMEZ GRAMUGLIO
MARIA AMPARO LOPEZ VIRTO
JESUS MARCO DE LUCAS
CELSO MARTINEZ RIVERO
FRANCISCO MATORRAS WEINIG
JONATAN PIEDRA GOMEZ
MARIA TERESA RODRIGO ANORO
ALBERTO RUIZ JIMENO
LUCA SCODELLARO
NICOLO TREVISANI
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
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