This Letter presents a measurement of the inelastic proton-proton cross section using 60 μb-1 of pp collisions at a center-of-mass energy s of 13 TeV with the ATLAS detector at the LHC. Inelastic interactions are selected using rings of plastic scintillators in the forward region (2.07<|η|<3.86) of the detector. A cross section of 68.1±1.4 mb is measured in the fiducial region ξ=MX2/s>10-6, where MX is the larger invariant mass of the two hadronic systems separated by the largest rapidity gap in the event. In this ξ range the scintillators are highly efficient. For diffractive events this corresponds to cases where at least one proton dissociates to a system with MX>13 GeV. The measured cross section is compared with a range of theoretical predictions. When extrapolated to the full phase space, a cross section of 78.1±2.9 mb is measured, consistent with the inelastic cross section increasing with center-of-mass energy.

M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, et al. (2016). Measurement of the Inelastic Proton-Proton Cross Section at s =13 TeV with the ATLAS Detector at the LHC. PHYSICAL REVIEW LETTERS, 117(18), 1-19 [10.1103/PhysRevLett.117.182002].

Measurement of the Inelastic Proton-Proton Cross Section at s =13 TeV with the ATLAS Detector at the LHC

G. L. Alberghi;L. Bellagamba;S. Biondi;D. Boscherini;A. Bruni;G. Bruni;G. D’amen;S. De Castro;F. Fabbri;L. Fabbri;M. Franchini;A. Gabrielli;B. Giacobbe;F. Lasagni Manghi;I. Massa;L. Massa;A. Mengarelli;A. Polini;L. Rinaldi;M. Romano;C. Sbarra;N. Semprini-Cesari;M. Sioli;R. Spighi;G. Ucchielli;S. Valentinetti;M. Villa;C. Vittori;I. Vivarelli;A. Zoccoli;
2016

Abstract

This Letter presents a measurement of the inelastic proton-proton cross section using 60 μb-1 of pp collisions at a center-of-mass energy s of 13 TeV with the ATLAS detector at the LHC. Inelastic interactions are selected using rings of plastic scintillators in the forward region (2.07<|η|<3.86) of the detector. A cross section of 68.1±1.4 mb is measured in the fiducial region ξ=MX2/s>10-6, where MX is the larger invariant mass of the two hadronic systems separated by the largest rapidity gap in the event. In this ξ range the scintillators are highly efficient. For diffractive events this corresponds to cases where at least one proton dissociates to a system with MX>13 GeV. The measured cross section is compared with a range of theoretical predictions. When extrapolated to the full phase space, a cross section of 78.1±2.9 mb is measured, consistent with the inelastic cross section increasing with center-of-mass energy.
2016
M. Aaboud, G. Aad, B. Abbott, J. Abdallah, O. Abdinov, B. Abeloos, et al. (2016). Measurement of the Inelastic Proton-Proton Cross Section at s =13 TeV with the ATLAS Detector at the LHC. PHYSICAL REVIEW LETTERS, 117(18), 1-19 [10.1103/PhysRevLett.117.182002].
M. Aaboud; G. Aad; B. Abbott; J. Abdallah; O. Abdinov; B. Abeloos; R. Aben; O. S. AbouZeid; N. L. Abraham; H. Abramowicz; H. Abreu; R. Abreu; Y. Abula...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/588044
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