10.1016-j.nuclphysb.2014.10.019.pdf (2.14 MB)
Measurement of the total cross section from elastic scattering in pp collisions at vs = 7 TeV with the ATLAS detector
journal contribution
posted on 2023-06-09, 06:04 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, K Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, The ATLAS CollaborationA measurement of the total pp cross section at the LHC at vs = 7 TeV is presented. In a special run with high-ß? 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, stot(pp?X), is measured via the optical theorem to be: stot(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.
Funding
ATLAS; G0275; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I006048/1
History
Publication status
- Published
File Version
- Published version
Journal
Nuclear Physics BISSN
0550-3213Publisher
ElsevierExternal DOI
Volume
889Page range
486-548Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2017-05-03First Open Access (FOA) Date
2017-05-03First Compliant Deposit (FCD) Date
2017-05-03Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC