Hard colour singlet exchange at the Tevatron

Cox, B. E.; Forshaw, J. R.; Lönnblad, Leif

doi:10.1088/1126-6708/1999/10/023

Cited by 43 publications

(58 citation statements)

References 18 publications

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“…Such effects are possible in pp scattering, where a beam remnant is present, in contrast to the electron scattering case in DDIS at HERA. A diversity of models of the absorptive corrections has developed [26][27][28][29][30][31][32][33], several of which reproduce the approximate 10% 'rapidity gap survival probability' observed in single diffractive pp scattering.…”

Section: Introductionmentioning

confidence: 99%

Diffractive dijet photoproduction in ep collisions at HERA

Aaron¹,

Alexa²,

Andreev³

et al. 2010

Eur. Phys. J. C

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Measurements are presented of single and doubledifferential dijet cross sections in diffractive photoproduction based on a data sample with an integrated luminosity of 47 pb −1 . The events are of the type ep → eXY , where the hadronic system X contains at least two jets and is separated by a large rapidity gap from the system Y , which consists of a leading proton or low-mass proton excitation. The dijet cross sections are compared with QCD calculations at next-to-leading order and with a Monte Carlo model based on leading order matrix elements with parton showers. The measured cross sections are smaller than those obtained from the next-to-leading order calculations by a factor of about 0.6. This suppression factor has no significant dependence on the fraction x γ of the photon four-momentum entering the hard subprocess. Ratios of the diffractive to the r

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Section: Introductionmentioning

confidence: 99%

Diffractive dijet photoproduction in ep collisions at HERA

Aaron¹,

Alexa²,

Andreev³

et al. 2010

Eur. Phys. J. C

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“…Each event sample contained 15 million events. Herwig was modified for colour singlet exchange according to [4]. The Rivet [5] analysis package was used, which provides an interface between the generator event record and various analysis tools, including jet finding.…”

Section: Monte Carlo Sample Event Selection and Fourier Transformmentioning

confidence: 99%

Fourier Transforms as a tool for Analysis of Hadron-Hadron Collisions.

Monk¹,

Campanelli²

2011

Proceedings of 13th International Workshop on Advanced Computing and Analysis Techniques in Physics Research — PoS(ACAT2010)

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Hadronic final states in hadron-hadron collisions are often studied by clustering final state hadrons into jets, each jet approximately corresponding to a hard parton. The typical jet size in a high energy hadron collision is between 0.4 and 1.0 in eta-phi. On the other hand, there may be structures of interest in an event that are of a different scale to the jet size. For example, to a first approximation the underlying event produces a uniform emission of radiation spanning the entire detector, colour connection effects between hard partons may fill the region between a jet and the proton remnant and hadronisation effects may extend beyond the jets. We consider the possibility of performing a Fourier decomposition on individual events in order to produce a power spectrum of the transverse energy radiated at different angular scales. We attempt to identify correlations in the emission of radiation over distances ranging from the full detector size to approximately 0.2 in eta-phi.

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“…However, the JES determined by [82] assumes that the event is non•diffractive and has no rapidity gap and hence includes the effect of both a soft underlying event and pile up on the jet energy. The JES correction is therefore not valid for diffraction [83,84] and was not used. In any case, the JES will cancel in the numerator and denominator of R jj to some extent.…”

Section: Jet Findermentioning

confidence: 99%

A study of Central Exclusive Production

Monk¹

2006

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Hard colour singlet exchange at the Tevatron

Cited by 43 publications

References 18 publications

Diffractive dijet photoproduction in ep collisions at HERA

Diffractive dijet photoproduction in ep collisions at HERA

Fourier Transforms as a tool for Analysis of Hadron-Hadron Collisions.

A study of Central Exclusive Production

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