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dc.contributor.authorALICE Collaboration
dc.contributor.authorAdam, J.
dc.contributor.authorAdamova, D.
dc.contributor.authorAggarwal, M. M.
dc.contributor.authorAglieri Rinella, G.
dc.contributor.authorAgnello, M.
dc.contributor.authorAgrawal, N.
dc.contributor.authorAhammed, Z.
dc.contributor.authorAhmed, I.
dc.contributor.authorAhn, S. U.
dc.date.accessioned2017-09-25T18:34:52Z
dc.date.available2017-09-25T18:34:52Z
dc.date.issued2016-02-29
dc.identifier.citationJ. Adam et al. ALICE Collaboration, Production of light nuclei and anti-nuclei in pp and Pb-Pb collisions at energies available at the CERN Large Hadron Collider. http://dx.doi.org/10.1103/PhysRevC.93.024917en_US
dc.identifier.urihttp://hdl.handle.net/1808/25022
dc.description.abstractThe production of (anti-)deuteron and (anti-) 3 He nuclei in Pb-Pb collisions at √sNN = 2.76 TeV has been studied using the ALICE detector at the LHC. The spectra exhibit a significant hardening with increasing centrality. Combined blast-wave fits of several particles support the interpretation that this behavior is caused by an increase of radial flow. The integrated particle yields are discussed in the context of coalescence and thermal-statistical model expectations. The particle ratios, 3 He /d and 3 He /p, in Pb-Pb collisions are found to be in agreement with a common chemical freeze-out temperature of Tchem ≈ 156 MeV. These ratios do not vary with centrality which is in agreement with the thermal-statistical model. In a coalescence approach, it excludes models in which nucleus production is proportional to the particle multiplicity and favors those in which it is proportional to the particle density instead. In addition, the observation of 31 anti-tritons in Pb-Pb collisions is reported. For comparison, the deuteron spectrum in pp collisions at √s = 7 TeV is also presented. While the p/π ratio is similar in pp and Pb-Pb collisions, the d/p ratio in pp collisions is found to be lower by a factor of 2.2 than in Pb-Pb collisions.en_US
dc.publisherAmerican Physical Societyen_US
dc.rightsThis article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.titleProduction of light nuclei and anti-nuclei in p p and Pb-Pb collisions at energies available at the CERN Large Hadron Collideren_US
dc.typeArticleen_US
kusw.kuauthorTapia Takaki, Daniel
kusw.kudepartmentPhysics and Astronomyen_US
dc.identifier.doi10.1103/PhysRevC.93.024917en_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccess


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This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Except where otherwise noted, this item's license is described as: This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.