Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at root s=7 TeV
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at s√=7 TeV. The jets were required to have transverse momentum pjetT>40 GeV and pseudorapidity 1.5<|ηjet|<4.7, and to have values of ηjet with opposite signs. The data used for this study were collected with the CMS detector during low-luminosity running at the LHC, and correspond to an integrated luminosity of 8pb−1. Events with no charged particles with pT>0.2 GeV in the interval −1<η<1 between the jets are observed in excess of calculations that assume no color-singlet exchange. The fraction of events with such a rapidity gap, amounting to 0.5–1% of the selected dijet sample, is measured as a function of the pT of the second-leading jet and of the rapidity separation between the jets. The data are compared to previous measurements at the Tevatron, and to perturbative quantum chromodynamics calculations based on the Balitsky–Fadin–Kuraev–Lipatov evolution equations, including different models of the non-perturbative gap survival probability.
Date Issued
2018-03-21
Date Acceptance
2018-03-05
Citation
EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (3)
ISSN
1434-6044
Publisher
SPRINGER
Journal / Book Title
EUROPEAN PHYSICAL JOURNAL C
Volume
78
Issue
3
Copyright Statement
© 2018 CERN for the benefit of the CMS collaboration. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000428179700004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
COLOR-SINGLET EXCHANGE
P(P)OVER-BAR COLLISIONS
(P)OVER-BAR-P COLLISIONS
SURVIVAL PROBABILITY
PHOTOPRODUCTION
HERA
SCATTERING
TEVATRON
Publication Status
Published
Article Number
ARTN 242
Date Publish Online
2018-03-21