%0 Chart or Table
%A ALICE Collaboration
%T Nuclear modification factor of light neutral-meson spectra up to high transverse momentum in p-Pb collisions at √{s<sub>NN</sub>} = 8.16 TeV
%M GSI-2023-00191
%D 2022
%Z Journal Article GSI record: GSI-2023-00137
%X CERN-LHC. Neutral pion (π<sup>0</sup>) and η meson production cross sections were measured up to unprecedentedly high transverse momenta (p<sub>T</sub>) in p–Pb collisions at √{s<sub>NN</sub>} = 8.16TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval −1.3 < y < 0.3 in the ranges of 0.4 < p<sub>T</sub> < 200 GeV/c and 1.0 < p<sub>T</sub> < 50 GeV/c, respectively. The respective nuclear modification factor (R<sub>pPb</sub>) is presented for p<sub>T</sub> up to of 200 and 30 GeV/c, where the former was achieved by extending the π<sup>0</sup> measurement in pp collisions at √s = 8TeV using the merged cluster technique. The values of R<sub>pPb</sub> are below unity for p<sub>T</sub> < 10 GeV/c, while they are consistent with unity for p<sub>T</sub> > 10 GeV/c, leaving essentially no room for final state energy loss. The new data provide strong constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at √{s<sub>NN</sub>} = 5.02TeV.
%F PUB:(DE-HGF)32
%9 Dataset
%R 10.17182/HEPDATA.128138
%U https://repository.gsi.de/record/250990