EAS-TOP

The proton-air inelastic cross-section at √s ≈ 2 TeV

M. Aglietta, B. Alessandro, P. Antonioli, Francesco Arneodo, L. Bergamasco, M. Bertaina, E. Cantoni, A. Castellina, A. Chiavassa, B. D'ettorre Piazzoli, G. Di Sciascio, W. Fulgione, P. Galeotti, P. L. Ghia, A. Lima De Godoi, M. Iacovacci, G. Mannocchi, C. Morello, G. Navarra, O. Saavedra & 5 others G. C. Trinchero, S. Valchierotti, P. Vallania, S. Vernetto, C. Vigorito

    Research output: Contribution to conferencePaper

    Abstract

    The proton-air inelastic cross section measurement at √s ≈ 2 TeV from the EAS-TOP Extensive Air Shower experiment is reported. The technique exploits cosmic ray proton primaries in the energy region E0 = (1.5 ÷ 2.5) 1015 eV, studying the absorption length of their cascades when detected at maximum development. Primary energies are selected through the EAS muon number (Nμ), and proton originated cascades at maximum development by means of the shower size (Ne). The shower longitudinal development and detection fluctuations are determined by means of simulations performed using the CORSIKA code and the QGSJET interaction model. The simulations provide the conversion factor (k=1.15±0.05) from the observed attenuation length (λobs exp =76.0±3.8 g/cm2) to the interaction length (λp-airint exp =66.1±4.4 g/cm2). The obtained value of the p-air inelastic cross section at √s ≈ 2 TeV is σp-airinel =365±24(stat)-28(sys) mb. The statistical and systematic uncertainties, as well as the connections with the pp total cross section measurements are discussed.

    Original languageEnglish (US)
    Pages27-30
    Number of pages4
    StatePublished - Jan 1 2007
    Event30th International Cosmic Ray Conference, ICRC 2007 - Merida, Yucatan, Mexico
    Duration: Jul 3 2007Jul 11 2007

    Other

    Other30th International Cosmic Ray Conference, ICRC 2007
    CountryMexico
    CityMerida, Yucatan
    Period7/3/077/11/07

    Fingerprint

    showers
    protons
    air
    cross sections
    cascades
    cosmic ray showers
    muons
    cosmic rays
    simulation
    attenuation
    interactions
    energy

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Aglietta, M., Alessandro, B., Antonioli, P., Arneodo, F., Bergamasco, L., Bertaina, M., ... Vigorito, C. (2007). EAS-TOP: The proton-air inelastic cross-section at √s ≈ 2 TeV. 27-30. Paper presented at 30th International Cosmic Ray Conference, ICRC 2007, Merida, Yucatan, Mexico.

    EAS-TOP : The proton-air inelastic cross-section at √s ≈ 2 TeV. / Aglietta, M.; Alessandro, B.; Antonioli, P.; Arneodo, Francesco; Bergamasco, L.; Bertaina, M.; Cantoni, E.; Castellina, A.; Chiavassa, A.; D'ettorre Piazzoli, B.; Di Sciascio, G.; Fulgione, W.; Galeotti, P.; Ghia, P. L.; Lima De Godoi, A.; Iacovacci, M.; Mannocchi, G.; Morello, C.; Navarra, G.; Saavedra, O.; Trinchero, G. C.; Valchierotti, S.; Vallania, P.; Vernetto, S.; Vigorito, C.

    2007. 27-30 Paper presented at 30th International Cosmic Ray Conference, ICRC 2007, Merida, Yucatan, Mexico.

    Research output: Contribution to conferencePaper

    Aglietta, M, Alessandro, B, Antonioli, P, Arneodo, F, Bergamasco, L, Bertaina, M, Cantoni, E, Castellina, A, Chiavassa, A, D'ettorre Piazzoli, B, Di Sciascio, G, Fulgione, W, Galeotti, P, Ghia, PL, Lima De Godoi, A, Iacovacci, M, Mannocchi, G, Morello, C, Navarra, G, Saavedra, O, Trinchero, GC, Valchierotti, S, Vallania, P, Vernetto, S & Vigorito, C 2007, 'EAS-TOP: The proton-air inelastic cross-section at √s ≈ 2 TeV' Paper presented at 30th International Cosmic Ray Conference, ICRC 2007, Merida, Yucatan, Mexico, 7/3/07 - 7/11/07, pp. 27-30.
    Aglietta M, Alessandro B, Antonioli P, Arneodo F, Bergamasco L, Bertaina M et al. EAS-TOP: The proton-air inelastic cross-section at √s ≈ 2 TeV. 2007. Paper presented at 30th International Cosmic Ray Conference, ICRC 2007, Merida, Yucatan, Mexico.
    Aglietta, M. ; Alessandro, B. ; Antonioli, P. ; Arneodo, Francesco ; Bergamasco, L. ; Bertaina, M. ; Cantoni, E. ; Castellina, A. ; Chiavassa, A. ; D'ettorre Piazzoli, B. ; Di Sciascio, G. ; Fulgione, W. ; Galeotti, P. ; Ghia, P. L. ; Lima De Godoi, A. ; Iacovacci, M. ; Mannocchi, G. ; Morello, C. ; Navarra, G. ; Saavedra, O. ; Trinchero, G. C. ; Valchierotti, S. ; Vallania, P. ; Vernetto, S. ; Vigorito, C. / EAS-TOP : The proton-air inelastic cross-section at √s ≈ 2 TeV. Paper presented at 30th International Cosmic Ray Conference, ICRC 2007, Merida, Yucatan, Mexico.4 p.
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    abstract = "The proton-air inelastic cross section measurement at √s ≈ 2 TeV from the EAS-TOP Extensive Air Shower experiment is reported. The technique exploits cosmic ray proton primaries in the energy region E0 = (1.5 ÷ 2.5) 1015 eV, studying the absorption length of their cascades when detected at maximum development. Primary energies are selected through the EAS muon number (Nμ), and proton originated cascades at maximum development by means of the shower size (Ne). The shower longitudinal development and detection fluctuations are determined by means of simulations performed using the CORSIKA code and the QGSJET interaction model. The simulations provide the conversion factor (k=1.15±0.05) from the observed attenuation length (λobs exp =76.0±3.8 g/cm2) to the interaction length (λp-air=λint exp =66.1±4.4 g/cm2). The obtained value of the p-air inelastic cross section at √s ≈ 2 TeV is σp-airinel =365±24(stat)-28(sys) mb. The statistical and systematic uncertainties, as well as the connections with the pp total cross section measurements are discussed.",
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    AU - Aglietta, M.

    AU - Alessandro, B.

    AU - Antonioli, P.

    AU - Arneodo, Francesco

    AU - Bergamasco, L.

    AU - Bertaina, M.

    AU - Cantoni, E.

    AU - Castellina, A.

    AU - Chiavassa, A.

    AU - D'ettorre Piazzoli, B.

    AU - Di Sciascio, G.

    AU - Fulgione, W.

    AU - Galeotti, P.

    AU - Ghia, P. L.

    AU - Lima De Godoi, A.

    AU - Iacovacci, M.

    AU - Mannocchi, G.

    AU - Morello, C.

    AU - Navarra, G.

    AU - Saavedra, O.

    AU - Trinchero, G. C.

    AU - Valchierotti, S.

    AU - Vallania, P.

    AU - Vernetto, S.

    AU - Vigorito, C.

    PY - 2007/1/1

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    N2 - The proton-air inelastic cross section measurement at √s ≈ 2 TeV from the EAS-TOP Extensive Air Shower experiment is reported. The technique exploits cosmic ray proton primaries in the energy region E0 = (1.5 ÷ 2.5) 1015 eV, studying the absorption length of their cascades when detected at maximum development. Primary energies are selected through the EAS muon number (Nμ), and proton originated cascades at maximum development by means of the shower size (Ne). The shower longitudinal development and detection fluctuations are determined by means of simulations performed using the CORSIKA code and the QGSJET interaction model. The simulations provide the conversion factor (k=1.15±0.05) from the observed attenuation length (λobs exp =76.0±3.8 g/cm2) to the interaction length (λp-air=λint exp =66.1±4.4 g/cm2). The obtained value of the p-air inelastic cross section at √s ≈ 2 TeV is σp-airinel =365±24(stat)-28(sys) mb. The statistical and systematic uncertainties, as well as the connections with the pp total cross section measurements are discussed.

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