Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector

A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The se...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín Fernando, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Física
ATLAS detector
Photons
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85569
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85569
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
ATLAS detector
Photons
spellingShingle Física
ATLAS detector
Photons
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector
topic_facet Física
ATLAS detector
Photons
description A search has been performed for photons originating in the decay of a neutral long-lived particle, exploiting the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction of photons, as well as the calorimeter's excellent time resolution. The search has been made in the diphoton plus missing transverse energy final state, using the full data sample of 4.8 fb-1 of 7 TeV proton-proton collisions collected in 2011 with the ATLAS detector at the LHC. No excess is observed above the background expected from Standard Model processes. The results are used to set exclusion limits in the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying with a lifetime in excess of 0.25 ns into a photon and a gravitino.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín Fernando
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector
title_short Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector
title_full Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector
title_fullStr Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector
title_full_unstemmed Search for nonpointing photons in the diphoton and ETmiss final state in √s=7 TeV proton-proton collisions using the ATLAS detector
title_sort search for nonpointing photons in the diphoton and etmiss final state in √s=7 tev proton-proton collisions using the atlas detector
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85569
work_keys_str_mv AT alconadaverzinimariajosefina searchfornonpointingphotonsinthediphotonandetmissfinalstateins7tevprotonprotoncollisionsusingtheatlasdetector
AT alonsofrancisco searchfornonpointingphotonsinthediphotonandetmissfinalstateins7tevprotonprotoncollisionsusingtheatlasdetector
AT anduagaxabiersebastian searchfornonpointingphotonsinthediphotonandetmissfinalstateins7tevprotonprotoncollisionsusingtheatlasdetector
AT dovamariateresa searchfornonpointingphotonsinthediphotonandetmissfinalstateins7tevprotonprotoncollisionsusingtheatlasdetector
AT monticellifernandogabriel searchfornonpointingphotonsinthediphotonandetmissfinalstateins7tevprotonprotoncollisionsusingtheatlasdetector
AT tripianamartinfernando searchfornonpointingphotonsinthediphotonandetmissfinalstateins7tevprotonprotoncollisionsusingtheatlasdetector
AT theatlascollaboration searchfornonpointingphotonsinthediphotonandetmissfinalstateins7tevprotonprotoncollisionsusingtheatlasdetector
bdutipo_str Repositorios
_version_ 1764820489517137920

Ejemplares similares