Light (anti)nuclei production in Pb-Pb collisions at sNN =5.02 TeV
(2023) In Physical Review C 107(6).- Abstract
- The measurement of the production of deuterons, tritons and He3 and their antiparticles in Pb-Pb collisions at sNN=5.02TeV is presented in this article. The measurements are carried out at midrapidity (|y|< 0.5) as a function of collision centrality using the ALICE detector. The pT-integrated yields, the coalescence parameters and the ratios to protons and antiprotons are reported and compared with nucleosynthesis models. The comparison of these results in different collision systems at different center-of-mass collision energies reveals a suppression of nucleus production in small systems. In the Statistical Hadronisation Model framework, this can be explained by a small correlation volume where the baryon number is conserved, as... (More)
- The measurement of the production of deuterons, tritons and He3 and their antiparticles in Pb-Pb collisions at sNN=5.02TeV is presented in this article. The measurements are carried out at midrapidity (|y|< 0.5) as a function of collision centrality using the ALICE detector. The pT-integrated yields, the coalescence parameters and the ratios to protons and antiprotons are reported and compared with nucleosynthesis models. The comparison of these results in different collision systems at different center-of-mass collision energies reveals a suppression of nucleus production in small systems. In the Statistical Hadronisation Model framework, this can be explained by a small correlation volume where the baryon number is conserved, as already shown in previous fluctuation analyses. However, a different size of the correlation volume is required to describe the proton yields in the same data sets. The coalescence model can describe this suppression by the fact that the wave functions of the nuclei are large and the fireball size starts to become comparable and even much smaller than the actual nucleus at low multiplicities. © 2023 CERN. for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. (Less)
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- author
- author collaboration
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review C
- volume
- 107
- issue
- 6
- article number
- 064904
- publisher
- American Physical Society
- external identifiers
-
- scopus:85163714237
- ISSN
- 2469-9985
- DOI
- 10.1103/PhysRevC.107.064904
- language
- English
- LU publication?
- yes
- id
- 0c26844b-b3cf-4727-afbd-bab19721105c
- date added to LUP
- 2023-11-16 11:33:26
- date last changed
- 2023-11-16 11:35:18
@article{0c26844b-b3cf-4727-afbd-bab19721105c, abstract = {{The measurement of the production of deuterons, tritons and He3 and their antiparticles in Pb-Pb collisions at sNN=5.02TeV is presented in this article. The measurements are carried out at midrapidity (|y|< 0.5) as a function of collision centrality using the ALICE detector. The pT-integrated yields, the coalescence parameters and the ratios to protons and antiprotons are reported and compared with nucleosynthesis models. The comparison of these results in different collision systems at different center-of-mass collision energies reveals a suppression of nucleus production in small systems. In the Statistical Hadronisation Model framework, this can be explained by a small correlation volume where the baryon number is conserved, as already shown in previous fluctuation analyses. However, a different size of the correlation volume is required to describe the proton yields in the same data sets. The coalescence model can describe this suppression by the fact that the wave functions of the nuclei are large and the fireball size starts to become comparable and even much smaller than the actual nucleus at low multiplicities. © 2023 CERN. for the ALICE Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.}}, author = {{Acharya, S. and Basu, S. and Christiansen, P. and Matonoha, O. and Nassirpour, A.F. and Ohlson, A. and Rueda, O.V. and Silvermyr, D. and Staa, J. and Vislavicius, V. and Zurlo, N.}}, issn = {{2469-9985}}, language = {{eng}}, number = {{6}}, publisher = {{American Physical Society}}, series = {{Physical Review C}}, title = {{Light (anti)nuclei production in Pb-Pb collisions at sNN =5.02 TeV}}, url = {{http://dx.doi.org/10.1103/PhysRevC.107.064904}}, doi = {{10.1103/PhysRevC.107.064904}}, volume = {{107}}, year = {{2023}}, }