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

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

doi:10.1140/epjc/s10052-020-8256-4

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

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

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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 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 (d Nch/ d η∼ 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). © 2020, The Author(s).

Original language	English
Article number	889
Journal	European Physical Journal C
Volume	80
Issue number	9
DOIs	https://doi.org/10.1140/epjc/s10052-020-8256-4
Publication status	Published - 2020

Subject classification (UKÄ)

Subatomic Physics

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10.1140/epjc/s10052-020-8256-4

Cite this

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title = "(Anti-)deuteron production in pp collisions at √s=13TeV",

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 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 (d Nch/ d η∼ 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). {\textcopyright} 2020, The Author(s).",

author = "S Acharya and Jonatan Adolfsson 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 Evert Stenlund and N Zurlo and {ALICE Collaboration}",

year = "2020",

doi = "10.1140/epjc/s10052-020-8256-4",

language = "English",

volume = "80",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer",

number = "9",

}

TY - JOUR

T1 - (Anti-)deuteron production in pp collisions at √s=13TeV

AU - Acharya, S

AU - Adolfsson, Jonatan

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 - Stenlund, Evert

AU - Zurlo, N

AU - ALICE Collaboration

PY - 2020

Y1 - 2020

N2 - 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 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 (d Nch/ d η∼ 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). © 2020, The Author(s).

AB - 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 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 (d Nch/ d η∼ 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). © 2020, The Author(s).

U2 - 10.1140/epjc/s10052-020-8256-4

DO - 10.1140/epjc/s10052-020-8256-4

M3 - Article

SN - 1434-6044

VL - 80

JO - European Physical Journal C

JF - European Physical Journal C

IS - 9

M1 - 889

ER -

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

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