10.1016-j.physletb.2016.01.028.pdf (1.5 MB)
Dijet production in vs = 7 TeV pp collisions with large rapidity gaps at the ATLAS experiment
journal contribution
posted on 2023-06-09, 05:42 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 6.8 nb-¹ sample of pp collision data collected under low-luminosity conditions at vs = 7 TeV by the ATLAS detector at the Large Hadron Collider is used to study diffractive dijet production. Events containing at least two jets with pT > 20 GeV are selected and analysed in terms of variables which discriminate between diffractive and non-diffractive processes. Cross sections are measured differentially in ??F, the size of the observable forward region of pseudorapidity which is devoid of hadronic activity, and in an estimator, ?˜, of the fractional momentum loss of the proton assuming single diffractive dissociation (pp ? p X). Model comparisons indicate a dominant non-diffractive contribution up to moderately large ?F and small ?˜, with a diffractive contribution which is significant at the highest ??F and the lowest ?˜. The rapidity-gap survival probability is estimated from comparisons of the data in this latter region with predictions based on diffractive parton distribution functions.
Funding
ATLAS; G0275; STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCIL; ST/I006048/1
History
Publication status
- Published
File Version
- Published version
Journal
Physics Letters BISSN
0370-2693Publisher
ElsevierExternal DOI
Volume
754Page range
214-234Department 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
2017-04-10First Open Access (FOA) Date
2017-04-10First Compliant Deposit (FCD) Date
2017-04-10Usage metrics
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