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001-es BibID:	BIBFORM022803
035-os BibID:	(cikkazonosító)091 (WoS)000282371300025 (Scopus)78649809111
Első szerző:	Chatrchyan, S.
Cím:	Observation of Long-Range Near-Side Angular Correlations in Proton-Proton Collisions at the LHC / S. Chatrchyan on behalf of The CMS Collaboration
Dátum:	2010
ISSN:	1029-8479
Megjegyzések:	Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center-of-mass energies of 0.9, 2.36, and 7 TeV are presented, using data collected with the CMS detector over a broad range of pseudorapidity (eta) and azimuthal angle (phi). Short-range correlations in Delta(eta), which are studied in minimum bias events, are characterized using a simple "independent cluster" parametrization in order to quantify their strength (cluster size) and their extent in eta (cluster decay width). Long-range azimuthal correlations are studied differentially as a function of charged particle multiplicity and particle transverse momentum using a 980 inverse nb data set at 7 TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particle pairs with intermediate transverse momentum of 1-3 GeV/c, 2.0< \|Delta(eta)\| <4.8 and Delta(phi) near 0. This is the first observation of such a long-range, near-side feature in two-particle correlation functions in pp or p p-bar collisions.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Journal Of High Energy Physics. - 9 (2010), p. 1-38. -
További szerzők:	Trócsányi Zoltán (1961-) (fizikus) Pálinkás József (1952-) (fizikus) Ujvári Balázs (1977-) (fizikus) The CMS Collaboration
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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