Observation of a new χb state in radiative transitions to Y(1S) and Y(2S) at ATLAS

The χb(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at √s=7TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4fb-1, these states are reconstructed through their radiative decays to Υ(1S,2S) with Υ...

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Autores principales: Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2012
Materias:
Física
quarkonium
proton-proton collisions
radiative decays
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84724
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84724
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
quarkonium
proton-proton collisions
radiative decays
spellingShingle Física
quarkonium
proton-proton collisions
radiative decays
Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
Observation of a new χb state in radiative transitions to Y(1S) and Y(2S) at ATLAS
topic_facet Física
quarkonium
proton-proton collisions
radiative decays
description The χb(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider at √s=7TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminosity of 4.4fb-1, these states are reconstructed through their radiative decays to Υ(1S,2S) with Υ→μ+μ-. In addition to the mass peaks corresponding to the decay modes χ b(1P,2P)→Υ(1S)γ, a new structure centered at a mass of 10.530±0.005(stat)±0.009(syst)GeV is also observed, in both the Υ(1S)γ and Υ(2S)γ decay modes. This structure is interpreted as the χb(3P) system.
format Articulo
Articulo
author Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
author_facet Anduaga, Xabier Sebastián
Dova, María Teresa
Monticelli, Fernando Gabriel
Tripiana, Martín F.
author_sort Anduaga, Xabier Sebastián
title Observation of a new χb state in radiative transitions to Y(1S) and Y(2S) at ATLAS
title_short Observation of a new χb state in radiative transitions to Y(1S) and Y(2S) at ATLAS
title_full Observation of a new χb state in radiative transitions to Y(1S) and Y(2S) at ATLAS
title_fullStr Observation of a new χb state in radiative transitions to Y(1S) and Y(2S) at ATLAS
title_full_unstemmed Observation of a new χb state in radiative transitions to Y(1S) and Y(2S) at ATLAS
title_sort observation of a new χb state in radiative transitions to y(1s) and y(2s) at atlas
publishDate 2012
url http://sedici.unlp.edu.ar/handle/10915/84724
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AT monticellifernandogabriel observationofanewchbstateinradiativetransitionstoy1sandy2satatlas
AT tripianamartinf observationofanewchbstateinradiativetransitionstoy1sandy2satatlas
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