Dijet Production by Color-Singlet Exchange at the Fermilab Tevatron

Abe, F.; Akimoto, H.; Akopian, A.; Albrow, M.; Amendolia, S. R.; Amidei, D.; Antos̆, J.; Aota, S.; Apollinari, G.; Arisawa, T.; Asakawa, T.; Ashmanskas, W.; Ataç, M.; Azfar, F.; Azzi, P.; Bacchetta, N.; Badgett, W.; Bagdasarov, S.; Bailey, M. W.; Bao, J.; Barbaro, P. de; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Barone, M.; Barzi, E.; Bauer, G.; Baumann, Thomas; Bedeschi, F.; Behrends, S.; Belforte, S.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Benlloch, J.; Bensinger, J. R.; Benton, D.; Beretvas, A.; Berge, J. P.; Berryhill, J. W.; Bertolucci, S.; Bettelli, S.; Bevensee, B.; Bhatti, A.; Biery, K.; Binkley, M.; Bisello, D.; Blair, R. E.; Blocker, C.; Blusk, S.; Bodek, A.; Bokhari, W.; Bolla, G.; Bolognesi, V.; Bonushkin, Y.; Bortoletto, D.; Boudreau, J.; Breccia, L.; Bromberg, C.; Bruner, N.; Buckley-Geer, E.; Budd, H. S.; Burkett, K.; Busetto, G.; Byon-Wagner, A.; Byrum, K. L.; Campagnari, C.; Campbell, M.; Caner, A.; Carithers, W.; Carlsmith, D.; Cassada, J.; Castro, A.; Cauz, D.; Cen, Y.; Cerri, A.; Cervelli, F.; Chang, P. S.; Chang, P. T.; Chao, H. Y.; Chapman, J.; Cheng, M. T.; Chertok, M.; Chiarelli, G.; Chikamatsu, T.; Chiou, C. N.; Christofek, L.; Cihangir, S.; Clark, A.; Cobal, M.; Cocca, E.; Contreras, M.; Conway, J.; Cooper, J.; Cordelli, M.; Couyoumtzelis, C.; Crane, D.; Cronin-Hennessy, D.; Culbertson, R.; Daniels, T.; DeJongh, F.; Delchamps, S.; Dell’Agnello, S.; Dell’Orso, M.; Démina, R.; Demortier, L.; Deninno, M.; Derwent, P. F.; Devlin, T.; Dittmann, J.; Donati, S.; Done, J.; Dorigo, T.; Dunn, A.; Eddy, N.; Einsweiler, K.; Elias, J. E.; Ely, R.; Engels, E.; Errede, D.; Errede, S.; Fan, Q.; Feild, G.; Feng, Z.; Ferretti, C.; Fiori, I.; Flaugher, B.; Foster, G. W.; Franklin, M.; Frautschi, M.; Freeman, J.; Friedman, J.; Frisch, H.; Fukui, Y.; Funaki, S.; Galeotti, S.; Gallinaro, M.; Ganel, O.; Garcia-Sciveres, M.; Garfinkel, A. 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S.; Kim, S. B.; Kim, S. H.; Kim, Y. K.; Kirsch, L.; Koehn, P.; Köngeter, A.; Kondo, K.; Königsberg, J.; Köpp, S.; Kordas, K.; Korytov, A.; Koska, W.; Kovacs, E.; Kowald, W.; Krasberg, M.; Kroll, J.; Kruse, M.; Kuhlmann, S. E.; Kuns, E.; Kuwabara, T.; Laasanen, A. T.; Lami, S.; Lammel, S.; Lamoureux, J. I.; Lancaster, M.; Lanzoni, M.; Latino, G.; LeCompte, T.; Leone, S.; Lewis, J. D.; Limon, P.; Lindgren, M.; Liss, T. M.; Liu, J. B.; Liu, Y. C.; Lockyer, N. S.; Long, O. R.; Loomis, C.; Loreti, M.; Lu, J.; Lucchesi, D.; Lukens, P.; Lusin, S.; Lys, J.; Maeshima, K.; Maghakian, A.; Maksimović, P.; Mangano, M.; Mariotti, M.; Marriner, J. P.; Martín, A.; Matthews, J.; Mattingly, R.; Mazzanti, P.; McIntyre, P.; Mélèse, P.; Menzione, A.; Meschi, E.; Mesropian, C.; Metzler, S.; Miao, C.; Miao, T.; Michail, G.; Miller, R.; Minato, H.; Miscetti, S.; Mishina, M.; Mitsushio, H.; Miyamoto, T.; Miyashita, S.; Moggi, N.; Morita, Y.; Mukherjee, A.; Müller, Th.; Murat, P.; Murgia, S.; Nakada, H.; Nakano, I.; Nelson, Charles A.; Neuberger, D.; Newman-Holmes, C.; Ngan, C. Y.P.; Ninomiya, M.; Nodulman, L.; Oh, S. H.; Ohl, K. E.; Ohmoto, T.; Ohsugi, T.; Oishi, R.; Okabe, M.; Okusawa, T.; Oliveira, Rui de; Olsen, J.; Pagliarone, C.; Paoletti, R.; Papadimitriou, V.; Pappas, S. P.; Parashar, N.; Park, S.; Parri, A.; Patrick, J.; Pauletta, G.; Paulini, M.; Perazzo, A.; Pescara, L.; Peters, Michael; Phillips, T. J.; Piacentino, G.; Pillai, M.; Pitts, K.; Plunkett, R.; Pondrom, L.; Proudfoot, J.; Ptohos, F.; Punzi, G.; Ragan, K.; Reher, D.; Ribon, A.; Rimondi, F.; Ristori, L.; Robertson, W. J.; Rodrigo, T.; Rolli, S.; Romano, J.; Rosenson, L.; Roser, R.; Saab, T.; Sakumoto, W. K.; Saltzberg, D.; Sansoni, A.; Santi, L.; Sato, H.; Schlabach, P.; Schmidt, E. E.; Schmidt, M. P.; Scott, A.; Scribano, A.; Segler, S.; Seidel, S. C.; Seiya, Y.; Semeria, F.; Sganos, G.; Shah, T.; Shapiro, M.; Shaw, N. M.; Shen, Qing; Shepard, P. F.; Shimojima, M.; Shochet, M.; Siegrist, J.; Sill, A.; Sinervo, P.; Singh, P.; Sliwa, K.; Smith, C.; Snider, F. D.; Song, T.; Spalding, J.; Speer, T.; Sphicas, P.; Spinella, F.; Spiropulu, M.; Spiegel, L.; Stančo, L.; Steele, J.; Stefanini, A.; Strait, J.; Ströhmer, R.; Stuart, D.; Sullivan, G. W.; Sumorok, K.; Suzuki, Junya; Takada, Tomoya; Takahashi, T.; Takano, T.; Takikawa, K.; Tamura, N.; Tannenbaum, B.; Tartarelli, G. F.; Taylor, W.; Teng, P. K.; Teramoto, Y.; Tether, S.; Theriot, D.; Thomas, T. L.; Thun, R. 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doi:10.1103/physrevlett.80.1156

Cited by 69 publications

(34 citation statements)

References 12 publications

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“…A large effort has been devoted to understanding the QCD dynamics of rapidity gaps in jet events since such processes were observed in p þ " p collisions at the Tevatron more than 10 years ago [1,2]. While describing diffractive processes in QCD has been a challenge for many years, the presence of a hard scale in so-called jet-gap-jet events, for instance, brings hope that one could be able to understand these with perturbative methods.…”

Section: Introductionmentioning

confidence: 99%

Gaps between jets in hadronic collisions

2011

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We propose a model to describe diffractive events in hadron-hadron collisions where a rapidity gap is surrounded by two jets. The hard color-singlet object exchanged in the t-channel and responsible for the rapidity gap is described by the pQCD Balitsky-Fadin-Kuraev-Lipatov Pomeron, including corrections due to next-to-leading logarithms. We allow the rapidity gap to be smaller than the inter-jet rapidity interval, and the corresponding soft radiation is modeled using the HERWIG Monte Carlo. Our model is able to reproduce all Tevatron data, and allows to estimate the jet-gap-jet cross section at the LHC.Comment: 7 pages, 3 figures, version to appear in PR

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Section: Introductionmentioning

confidence: 99%

Gaps between jets in hadronic collisions

2011

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“…Dijet production with a veto on additional hadronic activity in the rapidity interval between the jets has previously been studied at HERA [1][2][3] and the Tevatron [4][5][6][7][8]. The Large Hadron Collider (LHC) offers the opportunity to study this process at an increased centreof-mass energy and with a wider coverage in rapidity between jets.…”

Section: Introductionmentioning

confidence: 99%

Measurement of dijet production with a veto on additional central jet activity in pp collisions at $ \sqrt {s} = 7 $ TeV using the ATLAS detector

Aad¹,

Bella²,

Aubert³

et al. 2011

J. High Energ. Phys.

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A measurement of jet activity in the rapidity interval bounded by a dijet system is presented. Events are vetoed if a jet with transverse momentum greater than 20 GeV is found between the two boundary jets. The fraction of dijet events that survive the jet veto is presented for boundary jets that are separated by up to six units of rapidity and with mean transverse momentum 50 < p T < 500 GeV. The mean multiplicity of jets above the veto scale in the rapidity interval bounded by the dijet system is also presented as an alternative method for quantifying perturbative QCD emission. The data are compared to a next-to-leading order plus parton shower prediction from the powheg-box, an all-order resummation using the hej calculation and the pythia, herwig++ and alpgen event generators. The measurement was performed using pp collisions at √ s = 7 TeV using data recorded by the ATLAS detector in 2010.

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“…For example, the minimum-maximum ratio of the cross section, is about 30% at √ S = 630 GeV, and about 15% at √ S = 1800 GeV, close to estimates we can make from the experimental data. Also an analog of the "hard singlet fraction" [1,2], defined as the ratio of the area under the quasi-singlet curve to the area under the overall curve, is found to be about 5% at √ S = 630 GeV and about 3% at √ S = 1800 GeV, of the same order of magnitude, although somewhat higher, than the roughly 1% found at the Tevatron using track or tower multiplicities. The precise origin of this discrepancy might be related to the non-perturbative part of the survival probability [14], and remains to be explored.…”

Section: Numerical Resultsmentioning

confidence: 74%

“…Dijet rapidity-gap events, identified by very low hadron multiplicity in the rapidity region between two jets produced at high momentum transfer, have been observed both at Fermilab [1,2] and DESY [4,5]. We refer in particular to the experimental papers of the CDF and D0 collaborations [1,2,3], where an excess of oppositeside dijet events with respect to a background of same-side events is reported in the inclusive process p(p A ) +p(p B ) → J 1 (p 1 ) + J 2 (p 2 ) + X, for low hadron multiplicity in the central region of the calorimeter detector.…”

Section: Introductionmentioning

confidence: 99%

Rapidity gaps and color evolution in QCD hard scattering

Oderda

1999

Nuclear Physics B - Proceedings Supplements

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We discuss rapidity-gap events between two jets produced at high momentum transfer in $p$ $\bar{p}$ scattering, from the point of view of the soft energy flow into the interjet region. We define a gap cross section and, in perturbative QCD (pQCD), resum all the leading logarithms in the soft intermediate energy. We show that the numerical result from our cross section reproduces the shape of the D0 and CDF \cite{D0,CDF,D0fig} experimental data.Comment: Talk given at the International Euroconference on Quantum Chromodynamics (QCD '98), Montpellier, France, July 2-8, 199

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Dijet Production by Color-Singlet Exchange at the Fermilab Tevatron

Cited by 69 publications

References 12 publications

Gaps between jets in hadronic collisions

Gaps between jets in hadronic collisions

Measurement of dijet production with a veto on additional central jet activity in pp collisions at $ \sqrt {s} = 7 $ TeV using the ATLAS detector

Rapidity gaps and color evolution in QCD hard scattering

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