Measurements of longitudinal and transverse momentum distributions for neutral pions in the forward-rapidity region with the LHCf detector

LHCf Collaboration

    Research output: Contribution to journalArticle

    25 Citations (Scopus)

    Abstract

    The differential cross sections for inclusive neutral pions as a function of transverse and longitudinal momentum in the very forward-rapidity region have been measured at the LHC with the LHC forward detector in proton-proton collisions at s=2.76 and 7 TeV and in proton-lead collisions at nucleon-nucleon center-of-mass energies of sNN=5.02 TeV. Such differential cross sections in proton-proton collisions are compatible with the hypotheses of limiting fragmentation and Feynman scaling. Comparing proton-proton with proton-lead collisions, we find a sizable suppression of the production of neutral pions in the differential cross sections after subtraction of ultraperipheral proton-lead collisions. This suppression corresponds to the nuclear modification factor value of about 0.1-0.3. The experimental measurements presented in this paper provide a benchmark for the hadronic interaction Monte Carlo simulation codes that are used for the simulation of cosmic ray air showers.

    Original languageEnglish
    Article number032007
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume94
    Issue number3
    DOIs
    Publication statusPublished - 2016 Aug 22

    Fingerprint

    transverse momentum
    pions
    momentum
    protons
    detectors
    collisions
    cross sections
    retarding
    cosmic ray showers
    subtraction
    center of mass
    cosmic rays
    fragmentation
    simulation
    scaling

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

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    title = "Measurements of longitudinal and transverse momentum distributions for neutral pions in the forward-rapidity region with the LHCf detector",
    abstract = "The differential cross sections for inclusive neutral pions as a function of transverse and longitudinal momentum in the very forward-rapidity region have been measured at the LHC with the LHC forward detector in proton-proton collisions at s=2.76 and 7 TeV and in proton-lead collisions at nucleon-nucleon center-of-mass energies of sNN=5.02 TeV. Such differential cross sections in proton-proton collisions are compatible with the hypotheses of limiting fragmentation and Feynman scaling. Comparing proton-proton with proton-lead collisions, we find a sizable suppression of the production of neutral pions in the differential cross sections after subtraction of ultraperipheral proton-lead collisions. This suppression corresponds to the nuclear modification factor value of about 0.1-0.3. The experimental measurements presented in this paper provide a benchmark for the hadronic interaction Monte Carlo simulation codes that are used for the simulation of cosmic ray air showers.",
    author = "{LHCf Collaboration} and O. Adriani and E. Berti and L. Bonechi and M. Bongi and R. D'Alessandro and {Del Prete}, M. and M. Haguenauer and Y. Itow and T. Iwata and K. Kasahara and K. Kawade and Y. Makino and K. Masuda and E. Matsubayashi and H. Menjo and G. Mitsuka and Y. Muraki and P. Papini and Perrot, {A. L.} and S. Ricciarini and T. Sako and N. Sakurai and T. Suzuki and T. Tamura and A. Tiberio and Shoji Torii and A. Tricomi and Turner, {W. C.} and M. Ueno and Zhou, {Q. D.}",
    year = "2016",
    month = "8",
    day = "22",
    doi = "10.1103/PhysRevD.94.032007",
    language = "English",
    volume = "94",
    journal = "Physical review D: Particles and fields",
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    publisher = "American Institute of Physics Publising LLC",
    number = "3",

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    TY - JOUR

    T1 - Measurements of longitudinal and transverse momentum distributions for neutral pions in the forward-rapidity region with the LHCf detector

    AU - LHCf Collaboration

    AU - Adriani, O.

    AU - Berti, E.

    AU - Bonechi, L.

    AU - Bongi, M.

    AU - D'Alessandro, R.

    AU - Del Prete, M.

    AU - Haguenauer, M.

    AU - Itow, Y.

    AU - Iwata, T.

    AU - Kasahara, K.

    AU - Kawade, K.

    AU - Makino, Y.

    AU - Masuda, K.

    AU - Matsubayashi, E.

    AU - Menjo, H.

    AU - Mitsuka, G.

    AU - Muraki, Y.

    AU - Papini, P.

    AU - Perrot, A. L.

    AU - Ricciarini, S.

    AU - Sako, T.

    AU - Sakurai, N.

    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.

    PY - 2016/8/22

    Y1 - 2016/8/22

    N2 - The differential cross sections for inclusive neutral pions as a function of transverse and longitudinal momentum in the very forward-rapidity region have been measured at the LHC with the LHC forward detector in proton-proton collisions at s=2.76 and 7 TeV and in proton-lead collisions at nucleon-nucleon center-of-mass energies of sNN=5.02 TeV. Such differential cross sections in proton-proton collisions are compatible with the hypotheses of limiting fragmentation and Feynman scaling. Comparing proton-proton with proton-lead collisions, we find a sizable suppression of the production of neutral pions in the differential cross sections after subtraction of ultraperipheral proton-lead collisions. This suppression corresponds to the nuclear modification factor value of about 0.1-0.3. The experimental measurements presented in this paper provide a benchmark for the hadronic interaction Monte Carlo simulation codes that are used for the simulation of cosmic ray air showers.

    AB - The differential cross sections for inclusive neutral pions as a function of transverse and longitudinal momentum in the very forward-rapidity region have been measured at the LHC with the LHC forward detector in proton-proton collisions at s=2.76 and 7 TeV and in proton-lead collisions at nucleon-nucleon center-of-mass energies of sNN=5.02 TeV. Such differential cross sections in proton-proton collisions are compatible with the hypotheses of limiting fragmentation and Feynman scaling. Comparing proton-proton with proton-lead collisions, we find a sizable suppression of the production of neutral pions in the differential cross sections after subtraction of ultraperipheral proton-lead collisions. This suppression corresponds to the nuclear modification factor value of about 0.1-0.3. The experimental measurements presented in this paper provide a benchmark for the hadronic interaction Monte Carlo simulation codes that are used for the simulation of cosmic ray air showers.

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    U2 - 10.1103/PhysRevD.94.032007

    DO - 10.1103/PhysRevD.94.032007

    M3 - Article

    AN - SCOPUS:84984870763

    VL - 94

    JO - Physical review D: Particles and fields

    JF - Physical review D: Particles and fields

    SN - 0556-2821

    IS - 3

    M1 - 032007

    ER -