Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at .
Sirunyan AM , Tumasyan A , Adam W , Asilar E , Bergauer T , Brandstetter J , Brondolin E , Dragicevic M , Erö J , Flechl M , Friedl M , Frühwirth R , Ghete VM , Hartl C , Hörmann N , Hrubec J , Jeitler M , König A , Krätschmer I , Liko D , Matsushita T , 
Eur Phys J C Part Fields.2018 ; 78(3):242.
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Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at . The jets were required to have transverse momentum and pseudorapidity , and to have values of 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 8 . Events with no charged particles with in the interval 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 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.
PMID: 31264999 [PubMed]
PMID: 31264999 [PubMed]
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