Measurement of the Inelastic Proton-Proton Cross-Section at TeV with the ATLAS Detector
Collaboration
6 pages
Published in:
- Nature Commun. 2 (2011) 463
e-Print:
- 1104.0326 [hep-ex]
DOI:
Report number:
- CERN-PH-EP-2011-047
Experiments:
Citations per year
Abstract: (arXiv)
A first measurement of the inelastic cross-section is presented for proton-proton collisions at a center of mass energy sqrt{s}=7 TeV using the ATLAS detector at the Large Hadron Collider. In a dataset corresponding to an integrated luminosity of 20 mub-1, 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 xi > 5x10^-6, where xi=M_X^2/s is calculated from the invariant mass, M_X, 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.Note:
- 6 pages plus author list (19 pages total). 4 figures, 2 tables, submitted to Nature Communications
- 13.85.Hd
- 12.40.Nn
- 13.85.Lg
- rapidity: gap
- cross section: inelastic scattering: measured
- ATLAS
- scintillation counter: trigger
- CERN LHC Coll
- p p: inelastic scattering
- diffraction
References(34)
Figures(5)