J/ψ and D0 production in sNN−−−√ = 68.5 GeV PbNe collisions

LHCb Collaboration; Niladribihari Sahoo; Simone Bifani; Naomi Cooke; Paul Swallow; Ryan Calladine; Jonathan Plews; Mark Slater; Philip Ilten; Dmitry Popov; Daniel Thompson

doi:10.1140/epjc/s10052-023-11674-w

J/ψ and D0 production in sNN−−−√ = 68.5 GeV PbNe collisions

LHCb Collaboration, Niladribihari Sahoo, Simone Bifani, Naomi Cooke, Paul Swallow, Ryan Calladine, Jonathan Plews, Mark Slater, Philip Ilten, Dmitry Popov, Daniel Thompson

Physics and Astronomy

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Abstract

The first measurement of J/ψ and D0 production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. The production of J/ψ and D0 mesons is studied with a beam of lead ions with an energy of 2.5 TeV per nucleon colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy of sNN−−−√ = 68.5 GeV. The J/ψ/D0 production cross-section ratio is studied as a function of rapidity, transverse momentum and collision centrality. These data are compared with measurements from pNe collisions at the same energy. No anomalous J/ψ suppression that could indicate the formation of a deconfined medium is observed.

Original language	English
Article number	658
Number of pages	11
Journal	European Physical Journal C
Volume	83
DOIs	https://doi.org/10.1140/epjc/s10052-023-11674-w
Publication status	Published - 25 Jul 2023

Bibliographical note

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-011.html (LHCb public pages). arXiv admin note: text overlap with arXiv:1810.07907

Keywords

hep-ex

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title = "J/ψ and D0 production in sNN−−−√ = 68.5 GeV PbNe collisions",

abstract = "The first measurement of J/ψ and D0 production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. The production of J/ψ and D0 mesons is studied with a beam of lead ions with an energy of 2.5 TeV per nucleon colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy of sNN−−−√ = 68.5 GeV. The J/ψ/D0 production cross-section ratio is studied as a function of rapidity, transverse momentum and collision centrality. These data are compared with measurements from pNe collisions at the same energy. No anomalous J/ψ suppression that could indicate the formation of a deconfined medium is observed.",

keywords = "hep-ex",

author = "{LHCb Collaboration} and Nigel Watson and Niladribihari Sahoo and Simone Bifani and Naomi Cooke and Paul Swallow and Ryan Calladine and Jonathan Plews and Mark Slater and Philip Ilten and Dmitry Popov and Daniel Thompson",

note = "All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-011.html (LHCb public pages). arXiv admin note: text overlap with arXiv:1810.07907",

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doi = "10.1140/epjc/s10052-023-11674-w",

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volume = "83",

journal = "European Physical Journal C",

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TY - JOUR

T1 - J/ψ and D0 production in sNN−−−√ = 68.5 GeV PbNe collisions

AU - LHCb Collaboration

AU - Watson, Nigel

AU - Sahoo, Niladribihari

AU - Bifani, Simone

AU - Cooke, Naomi

AU - Swallow, Paul

AU - Calladine, Ryan

AU - Plews, Jonathan

AU - Slater, Mark

AU - Ilten, Philip

AU - Popov, Dmitry

AU - Thompson, Daniel

N1 - All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-011.html (LHCb public pages). arXiv admin note: text overlap with arXiv:1810.07907

PY - 2023/7/25

Y1 - 2023/7/25

N2 - The first measurement of J/ψ and D0 production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. The production of J/ψ and D0 mesons is studied with a beam of lead ions with an energy of 2.5 TeV per nucleon colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy of sNN−−−√ = 68.5 GeV. The J/ψ/D0 production cross-section ratio is studied as a function of rapidity, transverse momentum and collision centrality. These data are compared with measurements from pNe collisions at the same energy. No anomalous J/ψ suppression that could indicate the formation of a deconfined medium is observed.

AB - The first measurement of J/ψ and D0 production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. The production of J/ψ and D0 mesons is studied with a beam of lead ions with an energy of 2.5 TeV per nucleon colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy of sNN−−−√ = 68.5 GeV. The J/ψ/D0 production cross-section ratio is studied as a function of rapidity, transverse momentum and collision centrality. These data are compared with measurements from pNe collisions at the same energy. No anomalous J/ψ suppression that could indicate the formation of a deconfined medium is observed.

KW - hep-ex

U2 - 10.1140/epjc/s10052-023-11674-w

DO - 10.1140/epjc/s10052-023-11674-w

M3 - Article

SN - 1434-6044

VL - 83

JO - European Physical Journal C

JF - European Physical Journal C

M1 - 658

ER -

J/ψ and D0 production in sNN−−−√ = 68.5 GeV PbNe collisions

Abstract

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