ϒ production in p–Pb collisions at sNN=8.16 TeV

ALICE Collaboration; 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

doi:10.1016/j.physletb.2020.135486

ϒ production in p–Pb collisions at sNN=8.16 TeV

ALICE Collaboration, 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

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Abstract

ϒ production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision sNN=8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03<ycms<3.53 and −4.46<ycms<−2.96, down to zero transverse momentum. In this work, results on the ϒ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the ϒ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the ϒ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the ϒ(1S). A first measurement of the ϒ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at sNN=5.02 TeV and with theoretical calculations. © 2020 European Organization for Nuclear Research

Original language	English
Article number	135486
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	806
DOIs	https://doi.org/10.1016/j.physletb.2020.135486
Publication status	Published - 2020

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Subatomic Physics

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10.1016/j.physletb.2020.135486

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ALICE Collaboration, Acharya, S., Adolfsson, J., Christiansen, P., Matonoha, O., Nassirpour, A., Ohlson, A., Oskarsson, A., Richert, T., Vazquez Rueda, O., Silvermyr, D., Stenlund, E., & Zurlo, N. (2020). ϒ production in p–Pb collisions at sNN=8.16 TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 806, Article 135486. https://doi.org/10.1016/j.physletb.2020.135486

@article{28e548bb4bb440c7a4a007fc99f1586c,

title = "ϒ production in p–Pb collisions at sNN=8.16 TeV",

abstract = "ϒ production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision sNN=8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03<ycms<3.53 and −4.46<ycms<−2.96, down to zero transverse momentum. In this work, results on the ϒ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the ϒ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the ϒ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the ϒ(1S). A first measurement of the ϒ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at sNN=5.02 TeV and with theoretical calculations. {\textcopyright} 2020 European Organization for Nuclear Research",

author = "{ALICE Collaboration} and 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",

year = "2020",

doi = "10.1016/j.physletb.2020.135486",

language = "English",

volume = "806",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

}

ALICE Collaboration, Acharya, S, Adolfsson, J, Christiansen, P , Matonoha, O , Nassirpour, A , Ohlson, A , Oskarsson, A, Richert, T, Vazquez Rueda, O, Silvermyr, D , Stenlund, E & Zurlo, N 2020, 'ϒ production in p–Pb collisions at sNN=8.16 TeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 806, 135486. https://doi.org/10.1016/j.physletb.2020.135486

TY - JOUR

T1 - ϒ production in p–Pb collisions at sNN=8.16 TeV

AU - ALICE Collaboration

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

PY - 2020

Y1 - 2020

N2 - ϒ production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision sNN=8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03<ycms<3.53 and −4.46<ycms<−2.96, down to zero transverse momentum. In this work, results on the ϒ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the ϒ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the ϒ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the ϒ(1S). A first measurement of the ϒ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at sNN=5.02 TeV and with theoretical calculations. © 2020 European Organization for Nuclear Research

AB - ϒ production in p–Pb interactions is studied at the centre-of-mass energy per nucleon–nucleon collision sNN=8.16 TeV with the ALICE detector at the CERN LHC. The measurement is performed reconstructing bottomonium resonances via their dimuon decay channel, in the centre-of-mass rapidity intervals 2.03<ycms<3.53 and −4.46<ycms<−2.96, down to zero transverse momentum. In this work, results on the ϒ(1S) production cross section as a function of rapidity and transverse momentum are presented. The corresponding nuclear modification factor shows a suppression of the ϒ(1S) yields with respect to pp collisions, both at forward and backward rapidity. This suppression is stronger in the low transverse momentum region and shows no significant dependence on the centrality of the interactions. Furthermore, the ϒ(2S) nuclear modification factor is evaluated, suggesting a suppression similar to that of the ϒ(1S). A first measurement of the ϒ(3S) has also been performed. Finally, results are compared with previous ALICE measurements in p–Pb collisions at sNN=5.02 TeV and with theoretical calculations. © 2020 European Organization for Nuclear Research

U2 - 10.1016/j.physletb.2020.135486

DO - 10.1016/j.physletb.2020.135486

M3 - Article

SN - 0370-2693

VL - 806

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 135486

ER -

ϒ production in p–Pb collisions at sNN=8.16 TeV

Abstract

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