Observation of an Excited B±c Meson State with the ATLAS Detector

A search for excited states of the B±c meson is performed using 4.9 fb-1 of 7 TeV and 19.2 fb-1 of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B±c→J/ψπ±. The s...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Exactas
Física
ATLAS detector
large hadron collider
proton-proton collisions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85062
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85062
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
ATLAS detector
large hadron collider
proton-proton collisions
spellingShingle Ciencias Exactas
Física
ATLAS detector
large hadron collider
proton-proton collisions
Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
Observation of an Excited B±c Meson State with the ATLAS Detector
topic_facet Ciencias Exactas
Física
ATLAS detector
large hadron collider
proton-proton collisions
description A search for excited states of the B±c meson is performed using 4.9 fb-1 of 7 TeV and 19.2 fb-1 of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B±c→J/ψπ±. The state appears in the m(Bc±π+π-)-m(Bc±)-2m(π±) mass difference distribution with a significance of 5.2 standard deviations. The mass of the observed state is 6842±4±5 MeV, where the first error is statistical and the second is systematic. The mass and decay of this state are consistent with expectations for the second S-wave state of the B±c meson, B±c(2S).
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author_sort Alconada Verzini, María Josefina
title Observation of an Excited B±c Meson State with the ATLAS Detector
title_short Observation of an Excited B±c Meson State with the ATLAS Detector
title_full Observation of an Excited B±c Meson State with the ATLAS Detector
title_fullStr Observation of an Excited B±c Meson State with the ATLAS Detector
title_full_unstemmed Observation of an Excited B±c Meson State with the ATLAS Detector
title_sort observation of an excited b±c meson state with the atlas detector
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85062
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bdutipo_str Repositorios
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