Measurement of the branching ratio Gamma(Lambda(0)(b) -> Psi(2S)Lambda(0))/ Gamma(Lambda(0.)(b) -> J/Psi Lambda(0)) with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10318573" target="_blank" >RIV/00216208:11320/15:10318573 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/15:00238924 RIV/68407700:21670/15:00238924 RIV/68407700:21220/15:00238924 RIV/61989592:15310/15:33157169
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2015.10.009" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2015.10.009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2015.10.009" target="_blank" >10.1016/j.physletb.2015.10.009</a>

Result language
angličtina
Original language name
Measurement of the branching ratio Gamma(Lambda(0)(b) -> Psi(2S)Lambda(0))/ Gamma(Lambda(0.)(b) -> J/Psi Lambda(0)) with the ATLAS detector
Original language description
An observation of the Lambda(0)(b) -> Psi (2S) Lambda(0) decay and a comparison of its branching fraction with that of the Lambda(0)(b) -> Psi (2S) Lambda(0) decay has been made with the ATLAS detector in proton-proton collisions at root s = 8 TeVat theLHC using an integrated luminosity of 20.6fb(-1). The J/Psi and Psi(2S) mesons are reconstructed in their decays to a muon pair, while the Lambda(0) -> p pi(-) decay is exploited for the Lambda(0) 0baryon reconstruction. The Lambda(0)(b) baryons are reconstructed with transverse momentum p(T)> 10 GeVand pseudorapidity vertical bar eta vertical bar < 2.1. The measured branching ratio of the Lambda(0)(b) -> Psi (2S) Lambda(0) and Lambda(0)(b) -> Psi (2S) Lambda(0) decays is Gamma(Lambda(0)(b) -> Psi (2S)Lambda(0)) / Gamma(Lambda(0)(b) -> Psi (2S) Lambda(0)) = 0.501 +/- 0.033(stat) +/- 0.019(syst), lower than the expectation from the covariant quark model. (C) 2015 CERN for the benefit of the ATLAS Collaboration. Published by Elsevier B.V
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ISSN
0370-2693
e-ISSN
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Volume of the periodical
751
Issue of the periodical within the volume
9 October 2015
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
18
Pages from-to
63-80
UT code for WoS article
000365384600013
EID of the result in the Scopus database
2-s2.0-84945260682

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