skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dijet production in $$\sqrt{s}$$ = 7 TeV $pp$ collisions with large rapidity gaps at the ATLAS experiment

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 p T > 20 GeV are selected and analysed in terms of variables which discriminate between diffractive and non-diffractive processes. Cross sections are measured differentially in Δη F, the size of the observable forward region of pseudorapidity which is devoid of hadronic activity, and in an estimator, ξ¯, 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 Δη F and small ξ¯, with a diffractive contribution which is significant at the highest Δη F and the lowest ξ¯. As a result, the rapidity-gap survival probability is estimated from comparisons of the data in this latter region with predictions based on diffractive parton distribution functions.

Authors:
 [1]
  1. Aix-Marseille Univ., and CNRS/IN2P3, Marseille (France). et al.
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
ATLAS Collaboration
OSTI Identifier:
1235497
Alternate Identifier(s):
OSTI ID: 1244992; OSTI ID: 1379149
Grant/Contract Number:  
AC02-76SF00515; AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 754; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Aad, G. Dijet production in $\sqrt{s}$ = 7 TeV $pp$ collisions with large rapidity gaps at the ATLAS experiment. United States: N. p., 2016. Web. doi:10.1016/j.physletb.2016.01.028.
Aad, G. Dijet production in $\sqrt{s}$ = 7 TeV $pp$ collisions with large rapidity gaps at the ATLAS experiment. United States. doi:10.1016/j.physletb.2016.01.028.
Aad, G. Mon . "Dijet production in $\sqrt{s}$ = 7 TeV $pp$ collisions with large rapidity gaps at the ATLAS experiment". United States. doi:10.1016/j.physletb.2016.01.028.
@article{osti_1235497,
title = {Dijet production in $\sqrt{s}$ = 7 TeV $pp$ collisions with large rapidity gaps at the ATLAS experiment},
author = {Aad, G.},
abstractNote = {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, ξ¯, 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 ξ¯, with a diffractive contribution which is significant at the highest ΔηF and the lowest ξ¯. As a result, the rapidity-gap survival probability is estimated from comparisons of the data in this latter region with predictions based on diffractive parton distribution functions.},
doi = {10.1016/j.physletb.2016.01.028},
journal = {Physics Letters. Section B},
number = C,
volume = 754,
place = {United States},
year = {2016},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2016.01.028

Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

Save / Share: