@article{3179271, title = "Study of dijet events with a large rapidity gap between the two leading jets in pp collisions at root s=7 TeV", author = "Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Asilar, E. and and Bergauer, T. and Brandstetter, J. and Brondolin, E. and Dragicevic, M. and and Ero, J. and Flechl, M. and Friedl, M. and Fruehwirth, R. and Ghete, and V. M. and Hartl, C. and Hormann, N. and Hrubec, J. and Jeitler, M. and and Konig, A. and Kratschmer, I. and Liko, D. and Matsushita, T. and and Mikulec, I. and Rabady, D. and Rad, N. and Rahbaran, B. and Rohringer, and H. and Schieck, J. and Strauss, J. and Waltenberger, W. and Wulz, C. -E. and and Dvornikov, O. and Makarenko, V. and Mossolov, V. and Gonzalez, J. and Suarez and Zykunov, V. and Shumeiko, N. and Alderweireldt, S. and De and Wolf, E. A. and Janssen, X. and Lauwers, J. and De Klundert, M. Van and and Van Haevermaet, H. and Van Mechelen, P. and Van Remortel, N. and Van and Spilbeeck, A. and Abu Zeid, S. and Blekman, F. and D'Hondt, J. and Daci, and N. and De Bruyn, I. and Deroover, K. and Lowette, S. and Moortgat, S. and and Moreels, L. and Olbrechts, A. and Python, Q. and Skovpen, K. and and Tavernier, S. and Van Doninck, W. and Van Mulders, P. and Van Parijs, I. and and Brun, H. and Clerbaux, B. and De Lentdecker, G. and Delannoy, H. and and Fasanella, G. and Favart, L. and Goldouzian, R. and Grebenyuk, A. and and Karapostoli, G. and Lenzi, T. and Leonard, A. and Luetic, J. and and Maerschalk, T. and Marinov, A. and Randle-Conde, A. and Seva, T. and and Vander Velde, C. and Vanlaer, P. and Vannerom, D. and Yonamine, R. and and Zenoni, F. and Zhang, F. and Cimmino, A. and Cornelis, T. and Dobur, D. and and Fagot, A. and Gul, M. and Khvastunov, I. and Poyraz, D. and Salva, and S. and Schofbeck, R. and Tytgat, M. and Van Driessche, W. and Yazgan, E. and and Zaganidis, N. and Bakhshiansohi, H. and Beluffi, C. and Bondu, O. and and Brochet, S. and Bruno, G. and Caudron, A. and De Visscher, S. and and Delaere, C. and Delcourt, M. and Francois, B. and Giammanco, A. and and Jafari, A. and Komm, M. and Krintiras, G. and Lemaitre, V. and and Magitteri, A. and Mertens, A. and Musich, M. and Piotrzkowski, K. and and Quertenmont, L. and Selvaggi, M. and Marono, M. Vidal and Wertz, S. and and Beliy, N. and Alda Junior, W. L. and Alves, F. L. and Alves, G. A. and and Brito, L. and Hensel, C. and Moraes, A. and Pol, M. E. and Teles, P. and Rebello and Belchior Batista Das Chagas, E. and Carvalho, W. and and Chinellato, J. and Custodio, A. and Da Costa, E. M. . and Da Silveira, and G. G. and De Jesus Damiao, D. and De Oliveira Martins, C. and Fonseca De and Souza, S. and Huertas Guativa, L. M. and Malbouisson, H. and Matos and Figueiredo, D. and Mora Herrera, C. and Mundim, L. and Nogima, H. and and Prado Da Silva, W. L. and Santoro, A. and Sznajder, A. and Tonelli and Manganote, E. J. and Torres Da Silva De Araujo, F. and Vilela Pereira, and A. and Ahuja, S. and Bernardes, C. A. and Dogra, S. and Fernandez Perez and Tomei, T. R. and Gregores, E. M. and Mercadante, P. G. and Moon, C. S. and and Novaes, S. F. and Padula, Sandra S. and Romero Abad, D. and Ruiz and Vargas, J. 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H. and Taylor, D. and and Woods, N. and CMS Collaboration", journal = "The European Physical Journal C - Particles and Fields", year = "2018", volume = "78", number = "3", publisher = "Springer-Verlag", issn = "1434-6044, 1434-6052", doi = "10.1140/epjc/s10052-018-5691-6", abstract = "Events with no charged particles produced between the two leading jets are studied in proton-proton collisions at root s = 7 TeV. The jets were required to have transverse momentum p(T)(jet) > 40 GeV and pseudorapidity 1.5 < vertical bar eta(jet)vertical bar < 4.7, and to have values of eta(jet) with opposite signs. The data used for this study were collected with the CMSdetector during low-luminosity running at the LHC, and correspond to an integrated luminosity of 8 pb(-1). Events with no charged particles with p(T) > 0.2GeV in the interval -1 < eta < 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." }