Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158  PbAu collisions

Adamová, D.; Agakichiev, G.; Appelshäuser, H.; Belaga, V. V.; Braun‐Munzinger, P.; Campagnolo, R.; Castillo, A.; Cherlin, A.; Damjanović, S.; Dietel, T.; Dietrich, L.; Drees, A.; Esumi, S.; Filimonov, K.; Fomenko, K.; Fraenkel, Z.; Garabatos, C.; Glässel, P.; Hering, G.; Holeczek, J.; Kushpil, V.; Lenkeit, B.; Ludolphs, W.; Maas, Axel; Marı́n, A.; Milošević, J.; Milov, A.; Miśkowiec, D.; Musa, L.; Panebrattsev, Y.; Petchenova, O.; Petráček, V.; Pfeiffer, A.; Rak, J.; Ravinovich, I.; Řehák, P.; Richter, Matthias; Sako, H.; Schmitz, W.; Schukraft, J.; Sedykh, S.; Seipp, W.; Sharma, A.; Shimansky, S.; Slívová, J.; Specht, H. J.; Stachel, J.; Šumbera, M.; Tilsner, H.; Tserruya, I.; Wessels, J. P.; Wienold, T.; Windelband, B.; Wurm, J.P.; Xie, W.; Yurevich, S.; Yurevich, V. I.

doi:10.1016/j.nuclphysa.2003.07.018

Cited by 111 publications

(48 citation statements)

References 34 publications

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“…Katarzyna Grebieszkow The NA49 points are obtained for the forward rapidity region in a limited azimuthal angle acceptance; the CERES data [12] are calculated for the mid-rapidity region within a complete azimuthal acceptance.…”

Section: Pos(cpod07)022 E-by-e P T Fluctuations In Nucl Collisions Amentioning

confidence: 99%

Event-by-event transverse momentum fluctuations in nuclear collisions at CERN SPS.

Grebieszkow¹

2008

Proceedings of Critical Point and Onset of Deconfinement - 4th International Workshop — PoS(CPOD07)

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The latest NA49 results on event-by-event transverse momentum fluctuations are presented for central Pb+Pb interactions over the whole SPS energy range (20A -158A GeV). Two different methods are applied: evaluating the Φ p T fluctuation measure and studying two-particle transverse momentum correlations. The obtained results are compared to predictions of the UrQMD model. The results on the energy dependence are compared to the NA49 data on the system size dependence. The NA61 (SHINE, NA49-future) strategy of searching of the QCD critical end-point is also discussed.

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Section: Pos(cpod07)022 E-by-e P T Fluctuations In Nucl Collisions Amentioning

confidence: 99%

Event-by-event transverse momentum fluctuations in nuclear collisions at CERN SPS.

Grebieszkow¹

2008

Proceedings of Critical Point and Onset of Deconfinement - 4th International Workshop — PoS(CPOD07)

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“…Since the transverse momentum fluctuations reveal relevant details of the early dynamics of the system formed in ultra-relativistic nuclear collisions, they have been intensely investigated both theoretically and experimentally [5,[30][31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Transverse momentum fluctuations in ultrarelativistic Pb + Pb and p + Pb collisions with “wounded” quarks

Božek

Broniowski

2017

Phys. Rev. C

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We analyze the phenomenon of size-flow transmutation in ultrarelativistic nuclear collisions in a model where the initial size fluctuations are driven by the wounded quarks and the collectivity is provided by viscous hydrodynamics. It is found that the model properly reproduces the data for the transverse momentum fluctuations measured for Pb+Pb collisions at √ sNN = 2.76 TeV by the ALICE Collaboration. The agreement holds for a remarkably wide range of centralities, from 0-5% up to 70-80%, and displays a departure from a simple scaling with (dN ch /dη) 1/2 in the form seen in the data. The overall agreement in the model with wounded quarks is significantly better than with nucleon participants. This feature joins the previously-found wounded quark multiplicity scaling in the argumentation in favor of subnucleonic degrees of freedom in the early dynamics. We also examine in detail the correlations between measures of the initial size and final average transverse momentum of hadrons. Predictions are made for the transverse momentum fluctuations in p+Pb collisions at √ sNN = 5.02 TeV.

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“…Event-by-event p T fluctuations have been studied in nucleus-nucleus (A-A) collisions at the Super Proton Synchrotron (SPS) [10][11][12][13][14] and at the Relativistic Heavy-Ion Collider (RHIC) [15][16][17][18][19][20], where dynamical fluctuations have been observed. Fluctuations of p T were found to decrease with collision centrality, as generally expected in a dilution scenario caused by superposition of partially independent e-mail: alice-publications@cern.ch particle-emitting sources.…”

Section: Introductionmentioning

confidence: 99%

Event-by-event mean $$\varvec{p}_{\mathbf {T}}$$ p T fluctuations in pp and Pb–Pb collisions at the LHC

et al. 2014

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Event-by-event fluctuations of the mean transverse momentum of charged particles produced in pp collisions at √ s = 0.9, 2.76 and 7 TeV, and Pb-Pb collisions at √ s NN = 2.76 TeV are studied as a function of the chargedparticle multiplicity using the ALICE detector at the LHC. Dynamical fluctuations indicative of correlated particle emission are observed in all systems. The results in pp collisions show little dependence on collision energy. The Monte Carlo event generators PYTHIA and PHOJET are in qualitative agreement with the data. Peripheral Pb-Pb data exhibit a similar multiplicity dependence as that observed in pp. In central Pb-Pb, the results deviate from this trend, featuring a significant reduction of the fluctuation strength. The results in PbPb are in qualitative agreement with previous measurements in Au-Au at lower collision energies and with expectations from models that incorporate collective phenomena.

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Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 PbAu collisions

Cited by 111 publications

References 34 publications

Event-by-event transverse momentum fluctuations in nuclear collisions at CERN SPS.

Event-by-event transverse momentum fluctuations in nuclear collisions at CERN SPS.

Transverse momentum fluctuations in ultrarelativistic Pb + Pb and p + Pb collisions with “wounded” quarks

Event-by-event mean $$\varvec{p}_{\mathbf {T}}$$ p T fluctuations in pp and Pb–Pb collisions at the LHC

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