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001-es BibID:	BIBFORM093403
035-os BibID:	(WoS)000304375300042 (Scopus)84055217156
Első szerző:	Krajczár Krisztián
Cím:	Charged hadron multiplicity and transverse energy densities in PbPb collisions from CMS / Krisztián Krajczár, CMS Collaboration
Dátum:	2011
ISSN:	0954-3899
Megjegyzések:	Measurements of the charged hadron multiplicity and transverse energy are presented for minimum bias PbPb collisions at a centre-of-mass energy of 2.76 TeV per nucleon pair. The number of charged hadrons was obtained by two different methods based on the silicon pixel system of the CMS detector at the LHC. The two methods are in excellent agreement, resulting a charged hadron density of 1612 +/- 55 for the 5% most central collisions. For the transverse energy measurement, CMS has almost Hermetic calorimetry coverage with fine granularity and excellent resolution. In addition, for particles near central rapidity, momenta from the tracker can be combined with the calorimeter data to give a significant improvement of the system resolution. A transverse energy density of 2.1 TeV is observed for the most central 2.5% collisions. The measurements are compared with heavy-ion results from earlier experiments, where a smooth dependence on the collision energy and impact parameter is observed.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Journal Of Physics G-Nuclear And Particle Physics. - 38 : 12 (2011), p. 1-4. -
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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