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: | , , , , , |
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Formato: | Articulo |
Lenguaje: | Inglés |
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2014
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/85062 |
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I19-R120-10915-85062 |
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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 |
work_keys_str_mv |
AT alconadaverzinimariajosefina observationofanexcitedbcmesonstatewiththeatlasdetector AT alonsofrancisco observationofanexcitedbcmesonstatewiththeatlasdetector AT anduagaxabiersebastian observationofanexcitedbcmesonstatewiththeatlasdetector AT dovamariateresa observationofanexcitedbcmesonstatewiththeatlasdetector AT monticellifernandogabriel observationofanexcitedbcmesonstatewiththeatlasdetector AT wahlberghernanpablo observationofanexcitedbcmesonstatewiththeatlasdetector |
bdutipo_str |
Repositorios |
_version_ |
1764820488904769539 |