Measurement of isolated photon-hadron correlations in √<i>S</i><sub>NN</sub>=5.02 TeV <i>pp</i> and <i>p</i>-Pb collisions
PHYSICAL REVIEW C, vol.102, no.4, 2020 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 102 Issue: 4
- Publication Date: 2020
- Doi Number: 10.1103/physrevc.102.044908
- Journal Name: PHYSICAL REVIEW C
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, INSPEC
- Yıldız Technical University Affiliated: No
Abstract
This paper presents isolated photon-hadron correlations using pp and p-Pb data collected by the ALICE detector at the LHC. For photons with vertical bar eta vertical bar < 0.67 and 12 < p(T) < 40 GeV/c, the associated yield of charged particles in the range vertical bar eta vertical bar < 0.80 and 0.5 < p(T) < 10 GeV/c is presented. These momenta are much lower than previous measurements at the LHC. No significant difference between pp and p-Pb is observed, with PYTHIA 8.2 describing both data sets within uncertainties. This measurement constrains nuclear effects on the parton fragmentation in p-Pb collisions, and provides a benchmark for future studies of Pb-Pb collisions.