2026-04-19T13:00:36Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/2213002025-12-05T17:01:43Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917
RECERCAT
author
Alfonso Albero, Alejandro
author
Garcia Moreno, Paula
author
Garrido Beltrán, Lluís
author
Gironella Gironell, Pere
author
Gomez Fernandez, Sergio
author
Graugés Pous, Eugeni
author
Lobo Salvia, Aniol
author
Marin Benito, Carla
author
Mauricio Ferre, Joan
author
Vazquez Gomez, Ricardo
author
LHCb Collaboration
2025-05-30T17:52:51Z2025-05-30T17:52:51Z2023-07-282025-05-30T17:52:52Z
The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The π0 production cross section is measured differentially in transverse momentum (pT) for 1.5 < pT < 10.0 GeV and in center-of-mass pseudorapidity (ηc:m:) regions 2.5 < ηc:m: < 3.5 (forward) and −4.0 < ηc:m: < −3.0 (backward) defined relative to the proton beam direction. The forward measurement shows a sizable suppression of π0 production, while the backward measurement shows the first evidence of π0 enhancement in proton-lead collisions at the LHC. Together, these measurements provide precise constraints on models of nuclear structure and particle production in high-energy nuclear collisions.
(c) American Physical Society, 2023 info:eu-repo/semantics/openAccess
Col·lisions (Física nuclear)
Física de partícules
Gran Col·lisionador d'Hadrons
Collisions (Nuclear physics)
Particle physics
Large Hadron Collider (France and Switzerland)
Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion