2020/10/04 by Pooja Pareek, Pareek, Pooja
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #nucl-ex
paper · pdf · doi:10.48550/arxiv.2010.01605
5 pages, 2 figures, Proceedings of The Eighth Annual Conference on Large Hadron Collider Physics (LHCP2020), 25-30 May, 2020
arxiv created 2020/10/04 · arxiv updated 2020/10/06
We present the measurement of light neutral mesons, π0 and η, in pp collisions at different center-of-mass energies obtained with the ALICE experiment at the LHC. The π0 and η mesons are measured via photons reconstructed by the electromagnetic calorimeters and the central tracking system. The invariant cross-section of π0 and η mesons are measured in a broad p\rm T range at √(s) = 0.9, 2.76, 7, 5.02 and 8 TeV. The spectra of π0 and η mesons measured in pp collisions at different collision energies show x\rm T-scaling at high p\rm T and violation of m\rm T-scaling at low p\rm T. The smaller x\rm T-scaling exponents of our measurements compared to RHIC may hint at a reduced importance of higher twist processes at LHC.