Abstract
Invariant differential yields of deuterons and antideuterons in collisions at = 0.9, 2.76 and 7 TeV and the yields of tritons, nuclei, and their antinuclei at = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum () range in the rapidity interval , extending both the energy and the reach of previous measurements up to 3 GeV/ for and 6 GeV/ for . The coalescence parameters of (anti)deuterons and nuclei exhibit an increasing trend with and are found to be compatible with measurements in collisions at low and lower energies. The integrated yields decrease by a factor of about 1000 for each increase of the mass number with one (anti)nucleon. Furthermore, the deuteron-to-proton ratio is reported as a function of the average charged particle multiplicity at different center-of-mass energies.
6 More- Received 23 October 2017
DOI:https://doi.org/10.1103/PhysRevC.97.024615
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©2018 CERN, for the ALICE Collaboration