RT Journal Article
T1 Multiplicity dependence of jet-like two-particle correlation structures in p–Pb collisions at √sNN=5.02TeV
A1 ALICE Collaboration, 
A1 Armesto Pérez, Néstor
A1 González Ferreiro, Elena
A1 Pajares Vales, Carlos
A1 Salgado López, Carlos Alberto
AB Two-particle angular correlations between unidentified charged trigger and associated particles are measured by the ALICE detector in p–Pbcollisions at a nucleon–nucleon centre-of-mass energy of 5.02TeV. The transverse-momentum range 0.7 <pT,assoc<pT,trig<5.0GeV/cis examined, to include correlations induced by jets originating from low momentum-transfer scatterings (minijets). The correlations expressed as associated yield per trigger particle are obtained in the pseudorapidity range |η| <0.9. The near-side long-range pseudorapidity correlations observed in high-multiplicity p–Pbcollisions are subtracted from both near-side short-range and away-side correlations in order to remove the non-jet-like components. The yields in the jet-like peaks are found to be invariant with event multiplicity with the exception of events with low multiplicity. This invariance is consistent with the particles being produced via the incoherent fragmentation of multiple parton–parton scatterings, while the yield related to the previously observed ridge structures is not jet-related. The number of uncorrelated sources of particle production is found to increase linearly with multiplicity, suggesting no saturation of the number of multi-parton interactions even in the highest multiplicity p–Pbcollisions. Further, the number scales only in the intermediate multiplicity region with the number of binary nucleon–nucleon collisions estimated with a Glauber Monte-Carlo simulation
PB Elsevier
SN 0370-2693
YR 2015
FD 2015
LK http://hdl.handle.net/10347/21828
UL http://hdl.handle.net/10347/21828
LA eng
NO Abelev, B., Adam, J., Adamová, D., Aggarwal, M. M., Agnello, M., Agostinelli, A., ... & Ahn, S. U. (2015). Multiplicity dependence of jet-like two-particle correlation structures in p–Pb collisions at sNN= 5.02 TeV. Physics Letters B, 741, 38-50
DS Minerva
RD 23 abr 2026