Number of the records: 1

Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment

SYSNO ASEP	0522707
Document Type	C - Proceedings Paper (int. conf.)
R&D Document Type	Conference Paper
Title	Measurements of the production of P-wave charmonium states through radiative decays at the ATLAS experiment
Author(s)	Marčišovský, Michal (FZU-D)_{RID, ORCID}
Number of authors	1
Article number	00082
Source Title	EPJ Web of Conferences, 71 - 2nd International Conference on New Frontiers in Physics. - Les Ulis : E D P Sciences, 2014 / Bravina L. ; Foka Y. ; Kabana S. - ISSN 2100-014X
Pages	s. 1-8
Number of pages	8 s.
Publication form	Online - E
Action	International Conference on New Frontiers in Physics /2./
Event date	28.08.2013 - 05.09.2013
VEvent location	Kolymbari
Country	GR - Greece
Event type	WRD
Language	eng - English
Country	FR - France
Keywords	ATLAS ; CERN LHC Coll ; B+:branching ratio: measured
Subject RIV	BF - Elementary Particles and High Energy Physics
OECD category	Particles and field physics
R&D Projects	LG13009 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271
UT WOS	000342375000082
EID SCOPUS	84901467365
DOI	10.1051/epjconf/20147100082
Annotation	The production cross sections of the chi_c1 and chi_c2 charmonium states are measured in pp collisions at s**(1/2) = 7 TeV using 4.5 fb^-1 of integrated luminosity recorded by the ATLAS detector at the LHC. The chi_c states are reconstructed via the radiative decay chi_c -> J/psi(mu^+mu^-)gamma, where the photons are reconstructed using gamma -> e^+ e^- conversion in the detector material. Differential production cross sections for prompt and non-prompt chi_c1,2 are presented, as well as the fraction of inclusive J/psi produced by feed-down from the chi_c states. The results are compared with a range of theoretical predictions. The branching fraction of ℬ (B^+ -> chi_c1K^+) is measured using the same dataset and chi_c event selection.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2020

Number of the records: 1