{ "id": "1203.5904", "version": "v1", "published": "2012-03-27T09:19:44.000Z", "updated": "2012-03-27T09:19:44.000Z", "title": "Spectra of identified hadrons with the ALICE detector in pp and Pb-Pb collisions at the LHC", "authors": [ "Roberto Preghenella" ], "comment": "8 pages, 9 figures, presented at the first ECTP International Conference on \"Primordial QCD matter in LHC era: implications of QCD results on the early Universe\", Cairo, Egypt, December 4-8, 2011", "categories": [ "hep-ex", "nucl-ex" ], "abstract": "The measurement of identified charged-hadron production at mid-rapidity ($|y| < 0.5$) performed with the ALICE experiment at the LHC is presented for pp collisions at $\\sqrt{s}$ = 900 GeV and 7 TeV and for Pb--Pb collisions at $\\sqrt{s_{NN}}$ = 2.76 TeV. Transverse momentum spectra of $\\pi^{\\pm}$, K$^{\\pm}$, p, $\\rm \\bar{p}$ and multi-strange baryons are measured over a wide momentum range using the $dE/dx$, the time-of-flight and topological particle-identification techniques. In this report, the particle-identification detectors and techniques, as well as the achieved performance, are shortly reviewed. Proton-proton results on particle production yields, spectral shapes and particle ratios are presented as a function of the collision energy and compared to previous experiments and commonly-used Monte Carlo models. Particle spectra, yields and ratios in Pb--Pb are measured as a function of the collision centrality and the results are compared with published RHIC data in Au--Au collisions at $\\sqrt{s_{NN}}$ = 200 GeV and predictions for the LHC.", "revisions": [ { "version": "v1", "updated": "2012-03-27T09:19:44.000Z" } ], "analyses": { "keywords": [ "pb-pb collisions", "alice detector", "identified hadrons", "particle production yields", "commonly-used monte carlo models" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1095101, "adsabs": "2012arXiv1203.5904P" } } }