Measurement of Antiproton Production in p-He Collisions at root S-NN=110 GeV

Aaij, R, Abelian Beteta, C, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F
et al (show 834 more authors) (2018) Measurement of Antiproton Production in p-He Collisions at root S-NN=110 GeV. PHYSICAL REVIEW LETTERS, 121 (22). 222001-.

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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.

Item Type: Article
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Uncontrolled Keywords: Fragmentation into hadrons, Hadron-hadron interactions, Particle dark matter, Protons, Hadron colliders, Particle production, Particles and fields
Depositing User: Symplectic Admin
Date Deposited: 15 Feb 2019 15:54
Last Modified: 19 Jan 2023 01:03
DOI: 10.1103/PhysRevLett.121.222001
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