Jet-associated deuteron production in pp collisions at √s=13 TeV

(ALICE Collaboration) Acharya, S.; Antičić, Tome; Erhardt, Filip; Gotovac, Sven; Jerčić, Marko; Karatović, David; Lončar, Petra; Mudnić, Eugen; Planinić, Mirko; Poljak, Nikola; Vicković, Linda; Zurlo, N. (2021) Jet-associated deuteron production in pp collisions at √s=13 TeV. Physics letters. B, 819 . ISSN 0370-2693

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Abstract

Deuteron production in high-energy collisions is sensitive to the space–time evolution of the collision system, and is typically described by a coalescence mechanism. For the first time, we present results on jet-associated deuteron production in pp collisions at √s=13 TeV, providing an opportunity to test the established picture for deuteron production in events with a hard scattering. Using a trigger particle with high transverse-momentum (pT>5 GeV/c) as a proxy for the presence of a jet at midrapidity, we observe a measurable population of deuterons being produced around the jet proxy. The associated deuteron yield measured in a narrow angular range around the trigger particle differs by 2.4–4.8 standard deviations from the uncorrelated background. The data are described by PYTHIA model calculations featuring baryon coalescence.

Item Type:	Article
Uncontrolled Keywords:	deuteron: production ; deuteron: yield ; transverse momentum: high ; p p: scattering ; yield: measured ; coalescence ; trigger ; hard scattering ; baryon ; PYTHIA ; experimental results ; 13000 GeV-cms/nucleon
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Division of Experimental Physics
Depositing User:	Tome Antičić
Date Deposited:	28 Apr 2022 10:18
URI:	http://fulir.irb.hr/id/eprint/7341
DOI:	10.1016/j.physletb.2021.136440

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