Measurement of inclusive forward neutron production cross section in proton-proton collisions at √s=13 TeV with the LHCf Arm2 detector

The LHCf Collaboration

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    In this paper, we report the measurement relative to the production of forward neutrons in proton-proton collisions at s=13 TeV obtained using the LHCf Arm2 detector at the Large Hadron Collider. The results for the inclusive differential production cross section are presented as a function of energy in three different pseudorapidity regions: η > 10.76, 8.99 < η < 9.22 and 8.81 < η < 8.99. The analysis was performed using a data set acquired in June 2015 that corresponds to an integrated luminosity of 0.194 nb−1. The measurements were compared with the predictions of several hadronic interaction models used to simulate air showers generated by Ultra High Energy Cosmic Rays. None of these generators showed good agreement with the data for all pseudorapidity intervals. For η > 10.76, no model is able to reproduce the observed peak structure at around 5 TeV and all models underestimate the total production cross section: among them, QGSJET II-04 shows the smallest deficit with respect to data for the whole energy range. For 8.99 < η < 9.22 and 8.81 < η < 8.99, the models having the best overall agreement with data are SIBYLL 2.3 and EPOS-LHC, respectively: in particular, in both regions SIBYLL 2.3 is able to reproduce the observed peak structure at around 1.5–2.5 TeV.[Figure not available: see fulltext.].

    Original languageEnglish
    Article number73
    JournalJournal of High Energy Physics
    Volume2018
    Issue number11
    DOIs
    Publication statusPublished - 2018 Nov 1

    Fingerprint

    neutrons
    collisions
    protons
    detectors
    cross sections
    energy

    Keywords

    • Forward physics
    • Hadron-Hadron scattering (experiments)
    • Unfolding

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Measurement of inclusive forward neutron production cross section in proton-proton collisions at √s=13 TeV with the LHCf Arm2 detector. / The LHCf Collaboration.

    In: Journal of High Energy Physics, Vol. 2018, No. 11, 73, 01.11.2018.

    Research output: Contribution to journalArticle

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    title = "Measurement of inclusive forward neutron production cross section in proton-proton collisions at √s=13 TeV with the LHCf Arm2 detector",
    abstract = "In this paper, we report the measurement relative to the production of forward neutrons in proton-proton collisions at s=13 TeV obtained using the LHCf Arm2 detector at the Large Hadron Collider. The results for the inclusive differential production cross section are presented as a function of energy in three different pseudorapidity regions: η > 10.76, 8.99 < η < 9.22 and 8.81 < η < 8.99. The analysis was performed using a data set acquired in June 2015 that corresponds to an integrated luminosity of 0.194 nb−1. The measurements were compared with the predictions of several hadronic interaction models used to simulate air showers generated by Ultra High Energy Cosmic Rays. None of these generators showed good agreement with the data for all pseudorapidity intervals. For η > 10.76, no model is able to reproduce the observed peak structure at around 5 TeV and all models underestimate the total production cross section: among them, QGSJET II-04 shows the smallest deficit with respect to data for the whole energy range. For 8.99 < η < 9.22 and 8.81 < η < 8.99, the models having the best overall agreement with data are SIBYLL 2.3 and EPOS-LHC, respectively: in particular, in both regions SIBYLL 2.3 is able to reproduce the observed peak structure at around 1.5–2.5 TeV.[Figure not available: see fulltext.].",
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    T1 - Measurement of inclusive forward neutron production cross section in proton-proton collisions at √s=13 TeV with the LHCf Arm2 detector

    AU - The LHCf Collaboration

    AU - Adriani, O.

    AU - Berti, E.

    AU - Bonechi, L.

    AU - Bongi, M.

    AU - D’Alessandro, R.

    AU - Detti, S.

    AU - Haguenauer, M.

    AU - Itow, Y.

    AU - Kasahara, K.

    AU - Makino, Y.

    AU - Masuda, K.

    AU - Menjo, H.

    AU - Muraki, Y.

    AU - Ohashi, K.

    AU - Papini, P.

    AU - Ricciarini, S.

    AU - Sako, T.

    AU - Sakurai, N.

    AU - Sato, K.

    AU - Shinoda, M.

    AU - Suzuki, T.

    AU - Tamura, T.

    AU - Tiberio, A.

    AU - Torii, Shoji

    AU - Tricomi, A.

    AU - Turner, W. C.

    AU - Ueno, M.

    AU - Zhou, Q. D.

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    N2 - In this paper, we report the measurement relative to the production of forward neutrons in proton-proton collisions at s=13 TeV obtained using the LHCf Arm2 detector at the Large Hadron Collider. The results for the inclusive differential production cross section are presented as a function of energy in three different pseudorapidity regions: η > 10.76, 8.99 < η < 9.22 and 8.81 < η < 8.99. The analysis was performed using a data set acquired in June 2015 that corresponds to an integrated luminosity of 0.194 nb−1. The measurements were compared with the predictions of several hadronic interaction models used to simulate air showers generated by Ultra High Energy Cosmic Rays. None of these generators showed good agreement with the data for all pseudorapidity intervals. For η > 10.76, no model is able to reproduce the observed peak structure at around 5 TeV and all models underestimate the total production cross section: among them, QGSJET II-04 shows the smallest deficit with respect to data for the whole energy range. For 8.99 < η < 9.22 and 8.81 < η < 8.99, the models having the best overall agreement with data are SIBYLL 2.3 and EPOS-LHC, respectively: in particular, in both regions SIBYLL 2.3 is able to reproduce the observed peak structure at around 1.5–2.5 TeV.[Figure not available: see fulltext.].

    AB - In this paper, we report the measurement relative to the production of forward neutrons in proton-proton collisions at s=13 TeV obtained using the LHCf Arm2 detector at the Large Hadron Collider. The results for the inclusive differential production cross section are presented as a function of energy in three different pseudorapidity regions: η > 10.76, 8.99 < η < 9.22 and 8.81 < η < 8.99. The analysis was performed using a data set acquired in June 2015 that corresponds to an integrated luminosity of 0.194 nb−1. The measurements were compared with the predictions of several hadronic interaction models used to simulate air showers generated by Ultra High Energy Cosmic Rays. None of these generators showed good agreement with the data for all pseudorapidity intervals. For η > 10.76, no model is able to reproduce the observed peak structure at around 5 TeV and all models underestimate the total production cross section: among them, QGSJET II-04 shows the smallest deficit with respect to data for the whole energy range. For 8.99 < η < 9.22 and 8.81 < η < 8.99, the models having the best overall agreement with data are SIBYLL 2.3 and EPOS-LHC, respectively: in particular, in both regions SIBYLL 2.3 is able to reproduce the observed peak structure at around 1.5–2.5 TeV.[Figure not available: see fulltext.].

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    KW - Hadron-Hadron scattering (experiments)

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