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

 Title: Dijet production in s√=7 TeV pp collisions with large rapidity gaps at the ATLAS experiment Author: Clark, Brian Lee; Franklin, Melissa; Huth, John; Ippolito, Valerio; Lazovich, Tomo; Lopez Mateos, David; Mercurio, Kevin ; Morii, Masahiro; Spearman, William; Sun, Siyuan; Tolley, Emma; Tuna, Alexander; Yen, Andy; Zambito, Stefano Note: Order does not necessarily reflect citation order of authors. Citation: ATLAS Collaboration. 2016. “Dijet production in s√=7 TeV pp collisions with large rapidity gaps at the ATLAS experiment.” Physics Letters B 754 (March): 214–234. doi:10.1016/j.physletb.2016.01.028. Full Text & Related Files: 1511.00502.pdf (473.9Kb; PDF) 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, ξ̃ , 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 ξ̃ , with a diffractive contribution which is significant at the highest ΔηF and the lowest ξ̃ . The rapidity-gap survival probability is estimated from comparisons of the data in this latter region with predictions based on diffractive parton distribution functions. Published Version: doi:10.1016/j.physletb.2016.01.028 Other Sources: https://arxiv.org/abs/1511.00502 Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:32875719 Downloads of this work: