Production of deuterons, tritons, 3 He nuclei, and their antinuclei in pp collisions at √s = 0.9, 2.76, and 7 TeV.
Journal article
Authors | ALICE Collaboration and Barnby, Lee |
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Abstract | Invariant differential yields of deuterons and antideuterons in p p collisions at √ s = 0.9, 2.76 and 7 TeV and the yields of tritons, 3 He nuclei, and their antinuclei at √ s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum ( p T ) range in the rapidity interval | y | < 0.5 , extending both the energy and the p T reach of previous measurements up to 3 GeV/ c for A = 2 and 6 GeV/ c for A = 3 . The coalescence parameters of (anti)deuterons and 3 ¯¯¯¯ He nuclei exhibit an increasing trend with p T and are found to be compatible with measurements in p A collisions at low p T 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. |
Invariant differential yields of deuterons and antideuterons in | |
Keywords | Nuclear reactions; Nucleons; Particle physics |
Year | 2018 |
Journal | Physical Review C |
Publisher | APS Physics |
ISSN | 24699985 |
24699993 | |
Digital Object Identifier (DOI) | https://doi.org/10.1103/PhysRevC.97.024615 |
Web address (URL) | http://hdl.handle.net/10545/622343 |
hdl:10545/622343 | |
Publication dates | 21 Feb 2018 |
Publication process dates | |
Deposited | 16 Mar 2018, 09:14 |
Contributors | STFC Daresbury Laboratory |
File | File Access Level Open |
https://repository.derby.ac.uk/item/938w4/production-of-deuterons-tritons-3-he-nuclei-and-their-antinuclei-in-pp-collisions-at-s-0-9-2-76-and-7-tev
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