Measurement of Antiproton Production in p−HeCollisions at √sNN = 110 GeV

Peter Clarke; Greig Cowan; Stephan Eisenhardt; Silvia Gambetta; Franz Muheim; Matthew Needham; Stephen Playfer; LHCb Collaboration; Marco Pappagallo

doi:10.1103/PhysRevLett.121.222001

Measurement of Antiproton Production in p−HeCollisions at √^sNN = 110 GeV

Peter Clarke, Greig Cowan, Stephan Eisenhardt, Silvia Gambetta, Franz Muheim, Matthew Needham, Stephen Playfer, LHCb Collaboration, Marco Pappagallo

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

The cross section for prompt antiproton production in collisions of protons with an energy of 6.5 TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of 0.5 nb-1. The target is provided by injecting helium gas into the LHC beam line at the LHCb interaction point. The reported results, covering antiproton momenta between 12 and 110 GeV/c, represent the first direct determination of the antiproton production cross section in p-He collisions, and impact the interpretation of recent results on antiproton cosmic rays from space-borne experiments.

Original language	English
Article number	222001
Journal	Physical Review Letters
Volume	121
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.121.222001
Publication status	Published - 29 Nov 2018

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title = "Measurement of Antiproton Production in p−HeCollisions at √sNN = 110 GeV",

abstract = "The cross section for prompt antiproton production in collisions of protons with an energy of 6.5 TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of 0.5 nb-1. The target is provided by injecting helium gas into the LHC beam line at the LHCb interaction point. The reported results, covering antiproton momenta between 12 and 110 GeV/c, represent the first direct determination of the antiproton production cross section in p-He collisions, and impact the interpretation of recent results on antiproton cosmic rays from space-borne experiments.",

author = "Peter Clarke and Greig Cowan and Stephan Eisenhardt and Silvia Gambetta and Franz Muheim and Matthew Needham and Stephen Playfer and LHCb Collaboration and Marco Pappagallo",

year = "2018",

month = nov,

day = "29",

doi = "10.1103/PhysRevLett.121.222001",

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T1 - Measurement of Antiproton Production in p−HeCollisions at √sNN = 110 GeV

AU - Clarke, Peter

AU - Cowan, Greig

AU - Eisenhardt, Stephan

AU - Gambetta, Silvia

AU - Muheim, Franz

AU - Needham, Matthew

AU - Playfer, Stephen

AU - Collaboration, LHCb

AU - Pappagallo, Marco

PY - 2018/11/29

Y1 - 2018/11/29

N2 - The cross section for prompt antiproton production in collisions of protons with an energy of 6.5 TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of 0.5 nb-1. The target is provided by injecting helium gas into the LHC beam line at the LHCb interaction point. The reported results, covering antiproton momenta between 12 and 110 GeV/c, represent the first direct determination of the antiproton production cross section in p-He collisions, and impact the interpretation of recent results on antiproton cosmic rays from space-borne experiments.

AB - The cross section for prompt antiproton production in collisions of protons with an energy of 6.5 TeV incident on helium nuclei at rest is measured with the LHCb experiment from a data set corresponding to an integrated luminosity of 0.5 nb-1. The target is provided by injecting helium gas into the LHC beam line at the LHCb interaction point. The reported results, covering antiproton momenta between 12 and 110 GeV/c, represent the first direct determination of the antiproton production cross section in p-He collisions, and impact the interpretation of recent results on antiproton cosmic rays from space-borne experiments.

U2 - 10.1103/PhysRevLett.121.222001

DO - 10.1103/PhysRevLett.121.222001

M3 - Article

SN - 0031-9007

VL - 121

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

M1 - 222001

ER -

Measurement of Antiproton Production in p−HeCollisions at √sNN = 110 GeV

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Measurement of Antiproton Production in p−HeCollisions at √^sNN = 110 GeV