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

S Acharya; Jonatan Adolfsson; Sumit Basu; Peter Christiansen; Oliver Matonoha; Adrian Nassirpour; Alice Ohlson; Anders Oskarsson; Tuva Richert; Omar Vazquez Rueda; David Silvermyr; N Zurlo; ALICE Collaboration

doi:10.1016/j.physletb.2021.136440

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

S Acharya, Jonatan Adolfsson, Sumit Basu, Peter Christiansen, Oliver Matonoha, Adrian Nassirpour, Alice Ohlson, Anders Oskarsson, Tuva Richert, Omar Vazquez Rueda, David Silvermyr, N Zurlo, ALICE Collaboration

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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. © 2021 The Author

Original language	English
Article number	136440
Journal	Physics Letters B
Volume	819
DOIs	https://doi.org/10.1016/j.physletb.2021.136440
Publication status	Published - 2021 Aug 1

Subject classification (UKÄ)

Subatomic Physics

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10.1016/j.physletb.2021.136440Licence: CC BY

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title = "Jet-associated deuteron production in pp collisions at s=13 TeV",

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. {\textcopyright} 2021 The Author",

author = "S Acharya and Jonatan Adolfsson and Sumit Basu and Peter Christiansen and Oliver Matonoha and Adrian Nassirpour and Alice Ohlson and Anders Oskarsson and Tuva Richert and {Vazquez Rueda}, Omar and David Silvermyr and N Zurlo and {ALICE Collaboration}",

year = "2021",

month = aug,

day = "1",

doi = "10.1016/j.physletb.2021.136440",

language = "English",

volume = "819",

journal = "Physics Letters B",

issn = "0370-2693",

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TY - JOUR

T1 - Jet-associated deuteron production in pp collisions at s=13 TeV

AU - Acharya, S

AU - Adolfsson, Jonatan

AU - Basu, Sumit

AU - Christiansen, Peter

AU - Matonoha, Oliver

AU - Nassirpour, Adrian

AU - Ohlson, Alice

AU - Oskarsson, Anders

AU - Richert, Tuva

AU - Vazquez Rueda, Omar

AU - Silvermyr, David

AU - Zurlo, N

AU - ALICE Collaboration

PY - 2021/8/1

Y1 - 2021/8/1

N2 - 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. © 2021 The Author

AB - 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. © 2021 The Author

U2 - 10.1016/j.physletb.2021.136440

DO - 10.1016/j.physletb.2021.136440

M3 - Article

SN - 0370-2693

VL - 819

JO - Physics Letters B

JF - Physics Letters B

M1 - 136440

ER -

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

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