Measurement of chi(c1) and chi(c2) production with root s=7 TeV pp collisions at ATLAS
- NázevTitle
- Measurement of chi(c1) and chi(c2) production with root s=7 TeV pp collisions at ATLASMeasurement of chi(c1) and chi(c2) production with root s=7 TeV pp collisions at ATLAS
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- G. Aad, T. Abajyan, B. Abbott, S.A. Khalek, O. Abdinov, K. Augsten, P. Gallus, J. Günther, J. Jakůbek, Z. Kohout, V. Král, S. Pospíšil, F. Seifert, V. Šimák, T. Slavíček, K. Smolek, J. Sodomka, M. Solar, J. Šolc, V. Sopko, B. Sopko, I. Štekl, D. Tureček, M. Vlasák, P. Vokáč, Z. Vykydal, M. Suk
- Klíčová slovaKeywords
- Hadron-Hadron Scattering, heavy-quarkonium, J/psi, hadronic production, j/psi production, prompt chi(c), upsilon, physics, RATIO
- ExperimentCollaboration
- ATLAS
- DOIDOI
- 10.1007/JHEP07(2014)154
- Časopis / citaceJournal / citation
- Journal of High Energy Physics 2014(7), 154 (2014) · ISSN 1029-8479
- RokYear
- 2014
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Podpora zkvalitnění týmů výzkumu a vývoje a rozvoj intersektorální mobility na ČVUT v PrazeSupport of inter-sectoral mobility and quality enhancement of research teams at Czech Technical University in Prague; Mezinárodní experiment ATLAS-CERNInternational experiment ATLAS-CERN; Mezinárodní experiment ATLAS-CERNInternational Experiment ATLAS-CERN
- CitovánoCited by
- 112 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://link.springer.com/content/pdf/10.1007/JHEP07(2014)154.pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The prompt and non-prompt production cross-sections for the chi(c1) and chi(c2) charmonium states are measured in pp collisions at root s = 7TeV with the ATLAS detector at the LHC using 4.5 fb(-1) of integrated luminosity. The chi(c) states are reconstructed through the radiative decay chi c -> J/psi gamma ( with J/psi -> mu(+)mu(-)) where photons are reconstructed from gamma -> e(+)e(-) conversions. The production rate of the chi(c2) state relative to the chi(c1) state is measured for prompt and non-prompt chi(c) as a function of J/psi transverse momentum. The prompt chi(c) cross-sections are combined with existing measurements of prompt J/psi production to derive the fraction of prompt J/psi produced in feed-down from chi(c) decays. The fractions of chi(c1) and chi(c2) produced in b-hadron decays are also measured.
The prompt and non-prompt production cross-sections for the chi(c1) and chi(c2) charmonium states are measured in pp collisions at root s = 7TeV with the ATLAS detector at the LHC using 4.5 fb(-1) of integrated luminosity. The chi(c) states are reconstructed through the radiative decay chi c -> J/psi gamma ( with J/psi -> mu(+)mu(-)) where photons are reconstructed from gamma -> e(+)e(-) conversions. The production rate of the chi(c2) state relative to the chi(c1) state is measured for prompt and non-prompt chi(c) as a function of J/psi transverse momentum. The prompt chi(c) cross-sections are combined with existing measurements of prompt J/psi production to derive the fraction of prompt J/psi produced in feed-down from chi(c) decays. The fractions of chi(c1) and chi(c2) produced in b-hadron decays are also measured.