Title: Hard color-singlet exchange in dijet events in proton-proton collisions at $$\sqrt{s} = 13$$ TeV

Abstract

We present a measurement of events with two jets separated by a pseudorapidity gap (jet-gap-jet). The signature is expected from hard color-singlet exchange. The jets are reconstructed with the CMS detector. The highest p_\text{T} $p_{\text{T}}$ jets have p_\text{T}^\text{jet1,2} > 40 $p_{\text{T}}^{\text{jet1,2}}>40$ GeV, with 1.4 < |\eta^\text{jet1,2}| < 4.7 $1.4<\left|{\eta }^{\text{jet1,2}}\right|<4.7$ and \eta^\text{jet1} \eta^\text{jet2} < 0 ${\eta }^{\text{jet1}}{\eta }^{\text{jet2}}<0$ . We measure the fraction of color-singlet exchange dijet events, f_\text{CSE} $f_{\text{CSE}}$ , and compare it to previous measurements and to predictions. We also study jet-gap-jet events where the colliding protons remain intact and are detected with the Roman pots of TOTEM. A larger fraction f_\text{CSE} $f_{\text{CSE}}$ is found in the latter subsample.

Authors:

Baldenegro Barrera, Cristian ^[1]

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+ Show Author Affiliations

1. University of Kansas

Publication Date:

Mon Jul 11 00:00:00 EDT 2022

Sponsoring Org.:

USDOE

OSTI Identifier:

1875607

Grant/Contract Number:  

SC0019389

Resource Type:

Published Article

Journal Name:

SciPost Physics Proceedings

Additional Journal Information:

Journal Name: SciPost Physics Proceedings Journal Issue: 8; Journal ID: ISSN 2666-4003

Publisher:

Stichting SciPost

Country of Publication:

Netherlands

Language:

English