Measurements of psi(2S) and X(3872) -> J/psi pi ( ) pi (-) production in pp collisions at root s=8 Tev with the ATLAS detector

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73581450" target="_blank" >RIV/61989592:15310/17:73581450 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/17:00316971 RIV/68407700:21340/17:00316971 RIV/68407700:21670/17:00316971 RIV/00216208:11320/17:10369119
Result on the web
<a href="https://link.springer.com/content/pdf/10.1007%2FJHEP01%282017%29117.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2FJHEP01%282017%29117.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP01(2017)117" target="_blank" >10.1007/JHEP01(2017)117</a>

Result language
angličtina
Original language name
Measurements of psi(2S) and X(3872) -> J/psi pi ( ) pi (-) production in pp collisions at root s=8 Tev with the ATLAS detector
Original language description
Differential cross sections are presented for the prompt and non-prompt production of the hidden-charm states X(3872) and psi(2S), in the decay mode J/psi pi (+) pi (-), measured using 11.4 fb(-1) of pp collisions at root s = 8 Tev by the ATLAS detector at the LHC. The ratio of cross-sections X(3872)/psi(2S) is also given, separately for prompt and non-prompt components, as well as the non-prompt fractions of X(3872) and psi(2S). Assuming independent single effective lifetimes for non-prompt X(3872) and psi(2S) production gives separating short- and long-lived contributions, assuming that the short-lived component is due to B (c) decays, gives R (B) = (3.57 +/- 0.33(stat) +/- 0.11(sys)) x 10(-2), with the fraction of non-prompt X(3872) produced via B (c) decays for p (T)(X(3872)) > 10 GeV being (25 +/- 13(stat) +/- 2(sys) +/- 5(spin))%. The distributions of the dipion invariant mass in the X(3872) and psi(2S) decays are also measured and compared to theoretical predictions.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics

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)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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