Dijet production in √s=7 TeV pp collisions with large rapidity gaps at the ATLAS experiment

Barton, Adam Edward and Beattie, Michael and Borissov, Guennadi and Bouhova-Thacker, Evelina Vassileva and Dearnaley, William and Fox, Harald and Grimm, Kathryn Ann Tschann and Henderson, Robert Charles William and Hughes, Gareth and Jones, Roger William Lewis and Kartvelishvili, Vakhtang and Long, Robin Eamonn and Love, Peter Allan and Maddocks, Harvey and Skinner, Malcolm and Smizanska, Maria and Walder, James William and Wharton, Andy (2016) Dijet production in √s=7 TeV pp collisions with large rapidity gaps at the ATLAS experiment. Physics Letters B, 754. pp. 214-234. ISSN 0370-2693

[img]
Preview
PDF (1-s2.0-S037026931600040X-main)
1_s2.0_S037026931600040X_main.pdf - Published Version
Available under License Creative Commons Attribution.

Download (1MB)

Abstract

A 6.8 nb−1 sample of pp collision data collected under low-luminosity conditions at √s=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 ΔηF, 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→pX). Model comparisons indicate a dominant non-diffractive contribution up to moderately large ΔηF and small , with a diffractive contribution which is significant at the highest ΔηF 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.

Item Type: Journal Article
Journal or Publication Title: Physics Letters B
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 78933
Deposited By: ep_importer_pure
Deposited On: 01 Apr 2016 15:20
Refereed?: Yes
Published?: Published
Last Modified: 11 Dec 2019 04:31
URI: https://eprints.lancs.ac.uk/id/eprint/78933

Actions (login required)

View Item View Item