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001-es BibID:	BIBFORM093254
035-os BibID:	(cikkazonosító)124084
Első szerző:	Tonjes, Marguerite B.
Cím:	Study of jet quenching using dijets in PbPb collisions with CMS / Marguerite B. Tonjes, CMS collaboration
Dátum:	2011
ISSN:	0954-3899
Megjegyzések:	Jets are an important tool to probe the hot, dense medium that is produced in ultra-relativistic heavy ion collisions. The large collision energy at the LHC provides copious production of dijets with energies that can be cleanly identified above the heavy ion background. The multipurpose CMS detector is well designed to measure these hard scattering processes with its high resolution calorimeters and high precision silicon tracker. Jet quenching is observed by a significant imbalance of dijet transverse momentum in PbPb collisions at root s(NN) = 2.76 TeV. The fraction of unbalanced dijets is found to increase strongly with increasing collision centrality. The dijet imbalance persists to the highest jet momenta studied. The redistribution of the quenched jet energy is studied using the transverse momentum balance of charged tracks projected onto the direction of the leading jet. In contrast to pp collisions, a large fraction of the momentum balance for asymmetric jets is found to be carried by low momentum particles at large angular distance from the jet axis.
Tárgyszavak:	Természettudományok Fizikai tudományok konferenciacikk folyóiratcikk
Megjelenés:	Journal Of Physics G-Nuclear And Particle Physics. - 38 : 12 (2011), p. 1-4. -
További szerzők:	Béni Noémi (1980-) (kísérleti fizikus) Pálinkás József (1952-) (fizikus) Szillási Zoltán (1971-) (fizikus) Raics Péter (1944-) (fizikus) Trócsányi Zoltán (1961-) (fizikus) Ujvári Balázs (1977-) (fizikus) The CMS Collaboration
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