Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, A. A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, M. Abolins, H. Abramowicz, H. Abreu, E. Acerbi, B. S. Acharya, D. L. Adams, T. N. Addy, J. Adelman, M. Aderholz, S. Adomeit, P. Adragna, T. Adye, S. Aefsky & 31 others J. A. Aguilar-Saavedra, M. Aharrouche, S. P. Ahlen, F. Ahles, A. Ahmad, M. Ahsan, G. Aielli, T. Akdogan, T. P A Åkesson, G. Akimoto, A. V. Akimov, A. Akiyama, M. S. Alam, M. A. Alam, S. Albrand, M. Aleksa, I. N. Aleksandrov, F. Alessandria, C. Alexa, G. Alexander, G. Alexandre, T. Alexopoulos, M. Alhroob, M. Aliev, G. Alimonti, B. Budick, K. Cranmer, A. Haas, A. I. Mincer, P. Nemethy, The ATLAS Collaboration

    Research output: Contribution to journalArticle

    Abstract

    The dependence of the rate of proton-proton interactions on the centre-of-mass collision energy, √s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed. Here we present the first measurement of the inelastic proton-proton interaction cross-section at a centre-of-mass energy, √s, of 7 TeV using the ATLAs detector at the Large Hadron Collider. Events are selected by requiring hits on scintillation counters mounted in the forward region of the detector. An inelastic cross-section of 60.3 ± 2.1 mb is measured for ξ> 5×10-6, where ξ is calculated from the invariant mass, Mx, of hadrons selected using the largest rapidity gap in the event. For diffractive events, this corresponds to requiring at least one of the dissociation masses to be larger than 15.7 GeV.

    Original languageEnglish (US)
    Article number463
    JournalNature Communications
    Volume2
    Issue number1
    DOIs
    StatePublished - 2011

    Fingerprint

    Protons
    Detectors
    protons
    detectors
    Colliding beam accelerators
    cross sections
    center of mass
    Hadrons
    Scintillation Counting
    Astrophysics
    Scintillation counters
    Physics
    hadrons
    scintillation counters
    astrophysics
    interactions
    dissociation
    physics
    collisions
    energy

    ASJC Scopus subject areas

    • Chemistry(all)
    • Biochemistry, Genetics and Molecular Biology(all)
    • Physics and Astronomy(all)

    Cite this

    Aad, G., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., Abdinov, O., ... The ATLAS Collaboration (2011). Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector. Nature Communications, 2(1), [463]. https://doi.org/10.1038/ncomms1472

    Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector. / Aad, G.; Abbott, B.; Abdallah, J.; Abdelalim, A. A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; Abramowicz, H.; Abreu, H.; Acerbi, E.; Acharya, B. S.; Adams, D. L.; Addy, T. N.; Adelman, J.; Aderholz, M.; Adomeit, S.; Adragna, P.; Adye, T.; Aefsky, S.; Aguilar-Saavedra, J. A.; Aharrouche, M.; Ahlen, S. P.; Ahles, F.; Ahmad, A.; Ahsan, M.; Aielli, G.; Akdogan, T.; Åkesson, T. P A; Akimoto, G.; Akimov, A. V.; Akiyama, A.; Alam, M. S.; Alam, M. A.; Albrand, S.; Aleksa, M.; Aleksandrov, I. N.; Alessandria, F.; Alexa, C.; Alexander, G.; Alexandre, G.; Alexopoulos, T.; Alhroob, M.; Aliev, M.; Alimonti, G.; Budick, B.; Cranmer, K.; Haas, A.; Mincer, A. I.; Nemethy, P.; The ATLAS Collaboration.

    In: Nature Communications, Vol. 2, No. 1, 463, 2011.

    Research output: Contribution to journalArticle

    Aad, G, Abbott, B, Abdallah, J, Abdelalim, AA, Abdesselam, A, Abdinov, O, Abi, B, Abolins, M, Abramowicz, H, Abreu, H, Acerbi, E, Acharya, BS, Adams, DL, Addy, TN, Adelman, J, Aderholz, M, Adomeit, S, Adragna, P, Adye, T, Aefsky, S, Aguilar-Saavedra, JA, Aharrouche, M, Ahlen, SP, Ahles, F, Ahmad, A, Ahsan, M, Aielli, G, Akdogan, T, Åkesson, TPA, Akimoto, G, Akimov, AV, Akiyama, A, Alam, MS, Alam, MA, Albrand, S, Aleksa, M, Aleksandrov, IN, Alessandria, F, Alexa, C, Alexander, G, Alexandre, G, Alexopoulos, T, Alhroob, M, Aliev, M, Alimonti, G, Budick, B, Cranmer, K, Haas, A, Mincer, AI, Nemethy, P & The ATLAS Collaboration 2011, 'Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector', Nature Communications, vol. 2, no. 1, 463. https://doi.org/10.1038/ncomms1472
    Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdelalim, A. A. ; Abdesselam, A. ; Abdinov, O. ; Abi, B. ; Abolins, M. ; Abramowicz, H. ; Abreu, H. ; Acerbi, E. ; Acharya, B. S. ; Adams, D. L. ; Addy, T. N. ; Adelman, J. ; Aderholz, M. ; Adomeit, S. ; Adragna, P. ; Adye, T. ; Aefsky, S. ; Aguilar-Saavedra, J. A. ; Aharrouche, M. ; Ahlen, S. P. ; Ahles, F. ; Ahmad, A. ; Ahsan, M. ; Aielli, G. ; Akdogan, T. ; Åkesson, T. P A ; Akimoto, G. ; Akimov, A. V. ; Akiyama, A. ; Alam, M. S. ; Alam, M. A. ; Albrand, S. ; Aleksa, M. ; Aleksandrov, I. N. ; Alessandria, F. ; Alexa, C. ; Alexander, G. ; Alexandre, G. ; Alexopoulos, T. ; Alhroob, M. ; Aliev, M. ; Alimonti, G. ; Budick, B. ; Cranmer, K. ; Haas, A. ; Mincer, A. I. ; Nemethy, P. ; The ATLAS Collaboration. / Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector. In: Nature Communications. 2011 ; Vol. 2, No. 1.
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    abstract = "The dependence of the rate of proton-proton interactions on the centre-of-mass collision energy, √s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed. Here we present the first measurement of the inelastic proton-proton interaction cross-section at a centre-of-mass energy, √s, of 7 TeV using the ATLAs detector at the Large Hadron Collider. Events are selected by requiring hits on scintillation counters mounted in the forward region of the detector. An inelastic cross-section of 60.3 ± 2.1 mb is measured for ξ> 5×10-6, where ξ is calculated from the invariant mass, Mx, of hadrons selected using the largest rapidity gap in the event. For diffractive events, this corresponds to requiring at least one of the dissociation masses to be larger than 15.7 GeV.",
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    AU - Abdelalim, A. A.

    AU - Abdesselam, A.

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