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A method allowing for a direct comparison of data with theoretical predictions is proposed for forward jet production at HERA and Mueller-Navelet jets at Tevatron and LHC. An application to the determination of the effective Pomeron…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Peschanski , C. Royon

We present and discuss two different topics where Tevatron and HERA data can be compared directly. A method allowing for a direct comparison of data with theoretical predictions is proposed for forward jet production at HERA. An application…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ch. Royon

In the framework of semihard (k$_T$ factorization) QCD approach, we consider the differential cross sections of $D^{*\pm}$ meson production at HERA. The consideration is based on BFKL and CCFM gluon distributions. We find that in the case…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. P. Baranov , H. Jung , N. P. Zotov

Recently the H1 and ZEUS collaborations have presented cross sections for DIS events with a forward jet. The BFKL formalism is able to produce an excellent fit to these data. The extracted intercept of the hard pomeron suggests that when…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. G. Contreras

We calculate inclusive dijet production cross section in high energy hadron collisions within the BFKL resummation formalism for the QCD Pomeron. Unlike the previous calculations with the Pomeron developing only between tagging jets, we…

High Energy Physics - Phenomenology · Physics 2009-12-30 Victor T. Kim , Grigorii B. Pivovarov

Determination of the intercept of the BFKL pomeron is one of the pressing issues in the high energy physics. Earlier we have shown that, at the dipole size $r=r_{\Delta}=(0.1-0.2)$f, the dipole cross section $\sigma(x,r)$ which is a…

High Energy Physics - Phenomenology · Physics 2010-11-01 N. N. Nikolaev , B. G. Zakharov

We calculate the rate for the deep-inelastic electroproduction of dijets at HERA. We study the weakening of the azimuthal (back-to-back) correlation between the jets, as $x$ decreases, to see whether it can be used to identify BFKL dynamics…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. J. Askew , D. Graudenz , J. Kwiecinski , A. D. Martin

We calculate inclusive dijet production cross section in high energy hadron collisions within the BFKL resummation formalism for the QCD Pomeron. We take into account the Pomerons which are adjacent to the hadrons. With these adjacent…

High Energy Physics - Phenomenology · Physics 2016-09-01 Victor T. Kim , Grigorii B. Pivovarov

Elastic production of vector mesons $\gamma^{*} N\to V N$ is the pomeron-exchange dominated diffractive reaction with much potential of probing the BFKL pomeron. The BFKL pomeron can conveniently be described in terms of the dipole cross…

High Energy Physics - Phenomenology · Physics 2009-10-28 J. Nemchik , N. N. Nikolaev , B. G. Zakharov

We use the BFKL equation to calculate the rate of deep inelastic scattering events containing two forward jets (adjacent to the proton remnants) at HERA. We compare the production of two forward jets with that of only one forward jet (the…

High Energy Physics - Phenomenology · Physics 2016-09-06 J. Kwiecinski , C. A. M. Lewis , A. D. Martin

We show that the next-to-leading-order renormalization-group-improved asymptotically-free BFKL Pomeron provides a good fit to HERA data on virtual photoproduction at small x and large Q^2. The leading discrete Pomeron pole reproduces…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. Ellis , H. Kowalski , D. A. Ross

We study two and three jet events with a large rapidity gap at HERA. Unlike in the Ingelman-Schlein approach we do not adscribe a structure to the Pomeron. Instead, the coupling of the Pomeron to quarks or gluons is taken pointlike, which…

High Energy Physics - Phenomenology · Physics 2009-10-30 J. Vermaseren , F. Barreiro , L. Labarga , F. J. Ynduráin

Single particles and jets in deeply inelastic scattering at low x are measured with the H1 detector in the region away from the current jet and towards the proton remnant, known as the forward region. Hadronic final state measurements in…

High Energy Physics - Experiment · Physics 2010-03-25 C. Adloff

We calculate the exclusive process gamma* gamma* ->rho rho at high energy. The Born order estimate and the leading (LLA) and next to leading order (NLLA) BFKL resummation effects show the feasibility of experimental detection in a quite…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Enberg , B. Pire , L. Szymanowski , S. Wallon

We show that it is possible to describe the effective Pomeron intercept, determined from the HERA Deep Inelastic Scattering data at small values of Bjorken x, using next-to-leading order BFKL evolution together with collinear improvements.…

High Energy Physics - Phenomenology · Physics 2013-05-30 Martin Hentschinski , Agustin Sabio Vera , Clara Salas

Using the QCD dipole picture of the hard BFKL pomeron, we derive the general expressions of the elastic and inelastic components of the proton diffractive structure functions. We obtain a good 7 parameter fit (including a secondary reggeon…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. Munier , R. Peschanski , Ch. Royon

The production of forward jets of transverse momentum $p_T(j)\approx Q$ and large momentum fraction $x_{jet}\gg x$ probes the onset of BFKL dynamics at HERA. A full ${\cal O}(\alpha_s^2)$ calculation of the inclusive forward jet cross…

High Energy Physics - Phenomenology · Physics 2014-11-17 Erwin Mirkes , Dieter Zeppenfeld

Experimental rates of W and dijets diffractively produced at the Tevatron Collider have recently become available. We use parametrizations of the pomeron structure function obtained from HERA data by two different schemes to compare…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. J. M. Covolan , M. S. Soares

A discrepancy between new data on inclusive single jet production at the Fermilab Tevatron and perturbative QCD is discussed. It is shown that the discrepancy may be accounted for by the BFKL Pomeron.

High Energy Physics - Phenomenology · Physics 2009-12-30 Victor T. Kim , Grigorii B. Pivovarov

Differential inclusive jet cross sections in neutral current deep inelastic ep scattering have been measured with the ZEUS detector. Three phase-space regions have been selected in order to study parton dynamics where the effects of BFKL…

High Energy Physics - Experiment · Physics 2012-08-27 ZEUS Collaboration
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