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001-es BibID:	BIBFORM085260
035-os BibID:	(Scopus)84914693377 (WoS)000346636400012
Első szerző:	Krätschmer, Ilse
Cím:	Quarkonium production measurements and searches for exotic quarkonia at CMS / Ilse Krätschmer, Raics Péter, Trócsányi Zoltán, Ujvári Balázs on behalf of The CMS collaboration
Dátum:	2014
ISSN:	1742-6588 1742-6596
Megjegyzések:	The CMS experiment at the LHC studies conventional and exotic quarkonia. CMS measured the quarkonium polarization of prompt Psi(nS) and Gamma(nS) states, using 2011 data taken in pp collisions at root s = 7 TeV. No strong polarization was observed in any of the states. Using the Psi (nS) polarization results and other polarization hypotheses, the prompt Psi (nS) differential production cross section was determined up to and even beyond 100 GeV. The production of X(3872) in its decay to J/psi pi(+)pi(-) was also measured, using data taken in pp collisions at root s = 7 TeV. The cross section times the branching fraction of the X(3872) relative to the one of psi(2S) and the fraction of X(3872) originating from B decays were determined. With the help of these results, the prompt X(3872) differential cross section times branching fraction as a function of prr was extracted. Furthermore, a search for the exotic quarkonium, X-b, decaying to Gamma(1S) pi(+)pi(-) in the mass range of 10 to 11 GeV was conducted, using data collected in pp collisions at root s = 8 TeV. No evidence of a X-b signal was observed. An upper limit on the relative inclusive production cross section times branching ratio of the X-b and Gamma(2S) states at 95% CL was set.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Journal of Physics. Conference Series. - 556 : 1 (2014), p. 1-5. -
További szerzők:	Raics Péter (1944-) (fizikus) Trócsányi Zoltán (1961-) (fizikus) Ujvári Balázs (1977-) (fizikus) CMS Collaboration
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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