(Anti-)deuteron production in pp collisions at root s=13 TeV

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The ALICE Collaboration , Acharya , S , Adamova , D , Brucken , E J , Hilden , T E , Kim , D J , Krizek , F , Litichevskyi , V , Orava , R , Parkkila , J E , Rak , J , Räsänen , S , Rytkonen , H , Saarimäki , O A M , Slupecki , M , Snellman , T W , Trzaska , W H & Zhou , Z 2020 , ' (Anti-)deuteron production in pp collisions at root s=13 TeV ' , European Physical Journal C. Particles and Fields , vol. 80 , no. 9 , 889 . https://doi.org/10.1140/epjc/s10052-020-8256-4

Title: (Anti-)deuteron production in pp collisions at root s=13 TeV
Author: The ALICE collaboration; Acharya, S.; Adamova, D.; Brucken, E. J.; Hilden, T. E.; Kim, D. J.; Krizek, F.; Litichevskyi, V.; Orava, R.; Parkkila, J. E.; Rak, J.; Räsänen, Sami; Rytkonen, H.; Saarimäki, Oskari Antti Matti; Slupecki, M.; Snellman, T. W.; Trzaska, W. H.; Zhou, Zhipeng
Contributor: University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
University of Helsinki, Czech Academy of Sciences
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
University of Helsinki, University of Jyväskylä
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
University of Helsinki, Helsinki Institute of Physics
University of Helsinki, University of Jyväskylä
University of Helsinki, University of Bergen
Date: 2020-09-25
Language: eng
Number of pages: 17
Belongs to series: European Physical Journal C. Particles and Fields
ISSN: 1434-6044
URI: http://hdl.handle.net/10138/323933
Abstract: The study of (anti-)deuteron production in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. In this paper the production of (anti-)deuterons is studied as a function of the charged particle multiplicity in inelastic pp collisions at root s = 13 TeV using the ALICE experiment. Thanks to the large number of accumulated minimum bias events, it has been possible to measure (anti-)deuteron production in pp collisions up to the same charged particle multiplicity (dN(ch)/d eta similar to 26) as measured in p-Pb collisions at similar centre-of-mass energies. Within the uncertainties, the deuteron yield in pp collisions resembles the one in p-Pb interactions, suggesting a common formation mechanism behind the production of light nuclei in hadronic interactions. In this context the measurements are compared with the expectations of coalescence and statistical hadronisation models (SHM).
Subject: 114 Physical sciences
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