Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector

A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb<sup>-1</sup> of proton-proton collisions at a centre-of-mass energy of √s = 13 TeV collected by the ATLAS detector at the Large Hadron Collider. Selected events have an isolated ph...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Exactas
Física
Hadron-Hadron scattering
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86794
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86794
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
Hadron-Hadron scattering
spellingShingle Ciencias Exactas
Física
Hadron-Hadron scattering
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
Hadron-Hadron scattering
description A search is performed for the production of high-mass resonances decaying into a photon and a jet in 3.2 fb<sup>-1</sup> of proton-proton collisions at a centre-of-mass energy of √s = 13 TeV collected by the ATLAS detector at the Large Hadron Collider. Selected events have an isolated photon and a jet, each with transverse momentum above 150 GeV. No significant deviation of the γ+jet invariant mass distribution from the background-only hypothesis is found. Limits are set at 95% confidence level on the cross sections of generic Gaussian-shaped signals and of a few benchmark phenomena beyond the Standard Model: excited quarks with vector-like couplings to the Standard Model particles, and non-thermal quantum black holes in two models of extra spatial dimensions. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 2% decrease from about 6 fb for a mass of 1.5 TeV to about 0.8 fb for a mass of 5 TeV. The minimum excluded visible cross sections for Gaussian-shaped resonances with width-to-mass ratios of 15% decrease from about 50 fb for a mass of 1.5 TeV to about 1.0 fb for a mass of 5 TeV. Excited quarks are excluded below masses of 4.4 TeV, and non-thermal quantum black holes are excluded below masses of 3.8 (6.2) TeV for Randall-Sundrum (Arkani-Hamed-Dimopoulous-Dvali) models with one (six) extra dimensions.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_short Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_full Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_fullStr Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_full_unstemmed Search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 TeV with the ATLAS detector
title_sort search for new phenomena with photon+jet events in proton-proton collisions at √s = 13 tev with the atlas detector
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86794
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