Refine
Year of publication
Document Type
- Preprint (697)
- Article (352)
- Conference Proceeding (1)
- Working Paper (1)
Language
- English (1051)
Has Fulltext
- yes (1051)
Is part of the Bibliography
- no (1051)
Keywords
- Heavy Ion Experiments (20)
- Hadron-Hadron Scattering (13)
- Hadron-Hadron scattering (experiments) (11)
- Heavy-ion collision (6)
- Jets (5)
- Collective Flow (4)
- Quark-Gluon Plasma (4)
- Jets and Jet Substructure (3)
- Charm physics (2)
- Experimental nuclear physics (2)
Institute
- Physik (1051)
- Frankfurt Institute for Advanced Studies (FIAS) (961)
- Informatik (926)
- Informatik und Mathematik (3)
- Hochschulrechenzentrum (2)
Transverse momentum (pT) spectra of pions, kaons, and protons up to pT=20 GeV/c have been measured in Pb-Pb collisions at sNN−−−√=2.76 TeV using the ALICE detector for six different centrality classes covering 0-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT≈3 GeV/c in central Pb-Pb collisions that decreases towards more peripheral collisions. For pT>10 GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10-20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of the quenched jet. For pT<10 GeV/c, the data provide important constraints for models aimed at describing the transition from soft to hard physics.