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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Charged-hadron and identified-hadron ( KS0, Λ, Ξ− ) yield measurements in photonuclear Pb+Pb and p+Pb collisions at
AU - The ATLAS collaboration
AU - Ali, Hanadi
AU - Alsolami, Zainab
AU - Barton, A.E.
AU - Borissov, G.
AU - Bouhova-Thacker, E.V.
AU - Fernandez Barbadillo, Beltran
AU - Ferrando, James
AU - Fox, H.
AU - Hagan, Alina
AU - Jones, R.W.L.
AU - Kartvelishvili, V.
AU - Love, P.A.
AU - Marshall, Emma J.
AU - McElhinney, Luke
AU - Meng, L.
AU - Sampson, Elliot
AU - Smizanska, M.
AU - Wharton, A.M.
PY - 2025/6/30
Y1 - 2025/6/30
N2 - This paper presents the measurement of charged-hadron and identified-hadron (KS0, Λ, Ξ−) yields in photonuclear collisions using 1.7nb−1 of sNN=5.02TeV Pb+Pb data collected in 2018 with the ATLAS detector at the Large Hadron Collider. Candidate photonuclear events are selected using a combination of tracking and calorimeter information, including the zero-degree calorimeter. The yields as a function of transverse momentum and rapidity are measured in these photonuclear collisions as a function of charged-particle multiplicity. These photonuclear results are compared with 0.1nb−1 of sNN=5.02TeV p+Pb data collected in 2016 by ATLAS using similar charged-particle multiplicity selections. These photonuclear measurements shed light on potential quark-gluon plasma formation in photonuclear collisions via observables sensitive to radial flow, enhanced baryon-to-meson ratios, and strangeness enhancement. The results are also compared with the Monte Carlo generator and hydrodynamic calculations to test whether such photonuclear collisions may produce small droplets of quark-gluon plasma that flow collectively.
AB - This paper presents the measurement of charged-hadron and identified-hadron (KS0, Λ, Ξ−) yields in photonuclear collisions using 1.7nb−1 of sNN=5.02TeV Pb+Pb data collected in 2018 with the ATLAS detector at the Large Hadron Collider. Candidate photonuclear events are selected using a combination of tracking and calorimeter information, including the zero-degree calorimeter. The yields as a function of transverse momentum and rapidity are measured in these photonuclear collisions as a function of charged-particle multiplicity. These photonuclear results are compared with 0.1nb−1 of sNN=5.02TeV p+Pb data collected in 2016 by ATLAS using similar charged-particle multiplicity selections. These photonuclear measurements shed light on potential quark-gluon plasma formation in photonuclear collisions via observables sensitive to radial flow, enhanced baryon-to-meson ratios, and strangeness enhancement. The results are also compared with the Monte Carlo generator and hydrodynamic calculations to test whether such photonuclear collisions may produce small droplets of quark-gluon plasma that flow collectively.
U2 - 10.1103/7lx4-x8rw
DO - 10.1103/7lx4-x8rw
M3 - Journal article
VL - 111
JO - Physical Review C
JF - Physical Review C
SN - 2469-9985
IS - 6
M1 - 064908
ER -