INVESTIGADORES
MONTICELLI Fernando Gabriel
artículos
Título:
Search for Higgs boson decays into pairs of light (pseudo)scalar particles in the γγjj final state in pp collisions at sqrt(s) = 13 TeV with the ATLAS detector
Autor/es:
F. MONTICELLI; ATLAS COLLABORATION
Revista:
PHYSICS LETTERS B
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2018
ISSN:
0370-2693
Resumen:
This Letter presents a search for exotic decays of the Higgs boson to a pair of new(pseudo)scalar particles, H → aa, where the a particle has a mass in the range 20?60GeV, and where one of the a bosons decays into a pair of photons and the other to a pair ofgluons. The search is performed in event samples enhanced in vector-boson fusion Higgsboson production by requiring two jets with large invariant mass in addition to the Higgsboson candidate decay products. The analysis is based on the full dataset of pp collisions at√s = 13 TeV recorded in 2015 and 2016 with the ATLAS detector at the CERN Large HadronCollider, corresponding to an integrated luminosity of 36.7 fb −1 . The data are in agreementwith the Standard Model predictions and an upper limit at the 95% confidence level is placedon the production cross section times the branching ratio for the decay H → aa → γγgg.This limit ranges from 3.1 pb to 9.0 pb depending on the mass of the a boson.