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Hard color-singlet exchange in dijet events in proton-proton collisions at √s = 13TeV

Show simple item record CMS Collaboration en_US Sirunyan, A. M. en_US DUBE, SOURABH en_US KANSAL, B. en_US KAPOOR, A. en_US KOTHEKAR, K. en_US PANDEY, S. en_US RANE, A. en_US RASTOGI, A. en_US SHARMA, SEEMA et al. en_US 2021-09-16T09:54:23Z 2021-09-16T09:54:23Z 2021-08 en_US
dc.identifier.citation Physical Review D, 104(3), 032009. en_US
dc.identifier.issn 2470-0010 en_US
dc.identifier.issn 2470-0029 en_US
dc.identifier.uri en_US
dc.description.abstract Events where the two leading jets are separated by a pseudorapidity interval devoid of particle activity, known as jet-gap-jet events, are studied in proton-proton collisions at root s=13 TeV .The signature is expected from hard color-singlet exchange. Each of the highest transverse momentum (pT) jets must have pj et T>40 GeV and pseudorapidity 1.4<|?jet|<4.7, with ?jet1?jet2<0 ,where jet1 and jet2 are the leading and subleading jets in pT, respectively. The analysis is based on data collected by the CMS and TOTEM experiments during a low luminosity, high-?? run at the CERN LHC in 2015, with an integrated luminosity of 0.66??pb?1. Events with a low number of charged particles with pT>0.2?? GeV in the interval |?|<1 between the jets are observed in excess of calculations that assume only color-exchange. The fraction of events produced via color-singlet exchange,f CSE , is measured as a function of p jet 2T, the pseudorapidity difference between the two leading jets, and the azimuthal angular separation between the two leading jets. The fraction f CSE has values of 0.4�1.0%. The results are compared with previous measurements and with predictions from perturbative quantum chromodynamics. In addition, the first study of jet-gap-jet events detected in association with an intact proton using a subsample of events with an integrated luminosity of 0.40??pb?1 is presented. The intact protons are detected with the Roman pot detectors of the TOTEM experiment. The f CSE in this sample is 2.91�0.70(stat)+1.08?1.01(syst)times larger than that for inclusive dijet production in dijets with similar kinematics. en_US
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.subject Rapidity Gaps en_US
dc.subject Multiplicity Distributions en_US
dc.subject (P)Over-Bar-P Collisions en_US
dc.subject P(P)Over-Bar Collisions en_US
dc.subject Pomeranchuk Singularity en_US
dc.subject Energy en_US
dc.subject Jets en_US
dc.subject Photoproduction en_US
dc.subject Fragmentation en_US
dc.subject Scattering en_US
dc.subject 2021-SEP-WEEK1 en_US
dc.subject TOC-SEP-2021 en_US
dc.subject 2021 en_US
dc.title Hard color-singlet exchange in dijet events in proton-proton collisions at √s = 13TeV en_US
dc.type Article en_US
dc.contributor.department Dept. of Physics en_US
dc.identifier.sourcetitle Physical Review D en_US
dc.publication.originofpublisher Foreign en_US

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