Agustoni, Marco; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Haug, Sigve; Kruker, Tobias; Marti, Lukas; Meloni, Federico; Schneider, Basil; Sciacca, Gianfranco; Stramaglia, Maria; Stucci, Stefania Antonia; Weber, Michael (2014). Measurement of the total cross section from elastic scattering in pp collisions at √s=7TeV with the ATLAS detector. Nuclear physics. B, 889, pp. 486-548. North Holland 10.1016/j.nuclphysb.2014.10.019
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A measurement of the total pp cross section at the LHC at √s = 7 TeV is presented. In a special run with high-β* beam optics, an integrated luminosity of 80 μb−1 was accumulated in order to measure the differential elastic cross section as a function of the Mandelstam momentum transfer variable t . The measurement is performed with the ALFA sub-detector of ATLAS. Using a fit to the differential elastic cross section in the |t | range from 0.01 GeV2 to 0.1 GeV2 to extrapolate to |t | →0, the total cross section, σtot(pp→X), is measured via the optical theorem to be:
σtot(pp→X) = 95.35± 0.38 (stat.)± 1.25 (exp.)± 0.37 (extr.) mb,
where the first error is statistical, the second accounts for all experimental systematic uncertainties and the last is related to uncertainties in the extrapolation to |t | → 0. In addition, the slope of the elastic cross section at small |t | is determined to be B = 19.73 ±0.14 (stat.) ±0.26 (syst.) GeV−2.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Agustoni, Marco, Beck, Hans Peter, Cervelli, Alberto, Ereditato, Antonio, Haug, Sigve, Kruker, Tobias, Marti, Lukas, Meloni, Federico, Schneider, Basil, Sciacca, Gianfranco, Stramaglia, Maria Elena, Stucci, Stefania, Weber, Michele |
Subjects: |
500 Science > 530 Physics |
ISSN: |
0550-3213 |
Publisher: |
North Holland |
Language: |
English |
Submitter: |
Jan Dirk Brinksma |
Date Deposited: |
08 Jun 2015 08:29 |
Last Modified: |
02 Mar 2023 23:26 |
Publisher DOI: |
10.1016/j.nuclphysb.2014.10.019 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt. |
BORIS DOI: |
10.7892/boris.68662 |
URI: |
https://boris.unibe.ch/id/eprint/68662 |
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