Please use this identifier to cite or link to this item: http://earchive.tpu.ru/handle/11683/57559
Title: Measurement of Antiproton Production in p−He Collisions at √sNN=110  GeV
Authors: Aaij, Roel
Adeva, Bernardo
Adinolfi, Marco
Aidala, Christine
Panshin, Gennady Leonidovich
Strokov, Sergey Aleksandrovich
Vagner, Aleksandr Rudolfovich
Issue Date: 2018
Publisher: Томский политехнический университет
Citation: Measurement of Antiproton Production in p−He Collisions at √sNN=110  GeV / R. Aaij [et al.] // Physical Review Letters. — 2018. — Vol. 121, iss. 22. — [222001, 22 p.].
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.
URI: http://earchive.tpu.ru/handle/11683/57559
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