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Related papers: The non-forward BFKL amplitude and rapidity gap ph…

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As a signal for the BFKL Pomeron in small-x deep inelastic $ep$ scattering, we calculate the azimuthal dependence of the inclusive cross section of forward jets relative to the outgoing electron. For not very large differences in rapidity…

High Energy Physics - Phenomenology · Physics 2014-11-17 J. Bartels , V. Del Duca , M. Wusthoff

We study two-to-two parton scattering amplitudes in the high-energy limit of perturbative QCD by iteratively solving the BFKL equation. This allows us to predict the imaginary part of the amplitude to leading-logarithmic order for arbitrary…

High Energy Physics - Phenomenology · Physics 2020-06-03 Simon Caron-Huot , Einan Gardi , Joscha Reichel , Leonardo Vernazza

The reaction \gamma\gamma ---> J/Psi J/Psi is discussed assuming dominance of the QCD BFKL pomeron exchange. We give prediction for the cross-section of this process for LEP2 and TESLA energies. We solve the BFKL equation in the non-forward…

High Energy Physics - Phenomenology · Physics 2009-10-31 Jan Kwiecinski , Leszek Motyka

The partonic transverse momentum, k_t distribution plays a crucial role in driving high-energy hadron interactions. If k_t is limited we have old fashioned Regge Theory. If k_t increases with energy the interaction may be described by…

High Energy Physics - Phenomenology · Physics 2014-10-01 V. A. Khoze , A. D. Martin , M. G. Ryskin

We study the effects of matching of the high-energy resummation based on the BFKL equation with initial state radiation effects, taken into account within the framework of high-energy factorization, in the production of Mueller-Navelet…

High Energy Physics - Phenomenology · Physics 2025-10-10 A. A. Chernyshev , M. A. Nefedov , V. A. Saleev

In this paper we proceed to study the high energy behavior of a scattering amplitudes in the Yang-Mills theory with the Higgs mechanism for the gauge boson mass. The spectrum of the $j$-plane singularities of the $t$-channel partial waves,…

High Energy Physics - Phenomenology · Physics 2016-01-20 Eugene Levin , Lev Lipatov , M. Siddikov

We calculate the quark part of the kernel of the generalized non-forward BFKL equation at non-zero momentum transfer $t$ in the next-to-leading logarithmic approximation. Along with the quark contribution to the gluon Regge trajectory, this…

High Energy Physics - Phenomenology · Physics 2016-08-25 V. S. Fadin , R. Fiore , A. Papa

A study of the inclusive production of a pair of hadrons (a "dihadron" system), having high transverse momenta and separated by a large interval of rapidity, is presented. This process has much in common with the widely discussed…

High Energy Physics - Phenomenology · Physics 2017-04-05 Francesco G. Celiberto , Dmitry Yu. Ivanov , Beatrice Murdaca , Alessandro Papa

In these lectures we discuss the Balitsky, Fadin, Kuraev, and Lipatov (BFKL) theory, which resums the leading logarithmic contributions to the radiative corrections to parton scattering in the high-energy limit, and we apply it to hadronic…

High Energy Physics - Phenomenology · Physics 2016-09-01 Vittorio Del Duca

We propose to study at the Large Hadron Collider (LHC) the inclusive production of a pair of hadrons (a "di-hadron" system) in a kinematics where two detected hadrons with high transverse momenta are separated by a large interval of…

High Energy Physics - Phenomenology · Physics 2016-08-11 Francesco G. Celiberto , Dmitry Yu. Ivanov , Beatrice Murdaca , Alessandro Papa

We give an overview of the calculation of the forward jet vertex associated to a rapidity gap (coupling of a hard pomeron to a jet) in the Balitsky-Fadin-Kuraev-Lipatov (BFKL) formalism at next-to-leading order (NLO). This result allows,…

High Energy Physics - Phenomenology · Physics 2015-07-16 M. Hentschinski

We review the theoretical approaches for investigations of the high energy hadron-hadron scattering in the Regge kinematics. It is demonstrated, that the gluon in QCD is reggeized and the Pomeron is a composite state of the reggeized…

High Energy Physics - Theory · Physics 2008-10-22 L. N. Lipatov

To find the region of applicability of the leading log(1/x) approximation for parton distributions in the small x region and to fix the argument of the QCD running coupling it is necessary to know radiative corrections to the kernel of the…

High Energy Physics - Phenomenology · Physics 2008-02-03 V. S. Fadin , M. I. Kotsky , L. N. Lipatov

Higher collision energies at future colliders may eventually lead to the falsification of standard fixed-order perturbation theory and linear evolutions due to non-linear structure of QCD at small-x. New physics researches that is strictly…

High Energy Physics - Phenomenology · Physics 2023-02-14 I. Hos , S. Kuday , H. Saygın

The diffractive process $\gamma p\to V + X$ (where $V$ is a vector meson and $X$ results from the dissociation of the proton) is studied. In particular, we consider the region of large momentum transfer (i.e. $|t|\gg\Lambda_{QCD}^2$) and…

High Energy Physics - Phenomenology · Physics 2016-09-01 J. R. Forshaw , M. G. Ryskin

The forward electroproduction of two light vector mesons is the first example of a collision process between strongly interacting colorless particles for which the amplitude can be written completely within perturbative QCD in the Regge…

High Energy Physics - Phenomenology · Physics 2008-12-19 Dmitry Yu. Ivanov , Alessandro Papa

We determine the infrared behaviour of the BFKL forward amplitude for gluon-gluon scattering. Our approach, based on the discrete pomeron solution, leads to an excellent description of the new combined inclusive HERA data at low values of x…

High Energy Physics - Phenomenology · Physics 2010-12-14 H. Kowalski , L. N. Lipatov , D. A. Ross , G. Watt

In the framework of the semihard ($k_T$ factorization) QCD approach, we consider the photoproduction of D* mesons associated with two hadron jets and the D* production in DIS at THERA conditions with the emphasis on the BFKL and CCFM…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. P. Baranov , N. P. Zotov

We study high-energy jet production in the multi-Regge limit making use of the Monte Carlo event generator BFKLex which includes collinear improvements in the form of double-log contributions as presented in [1]. Making use of the anti-kt…

High Energy Physics - Phenomenology · Physics 2016-03-23 G. Chachamis , A. Sabio Vera

We have performed a detailed phenomenological investigation of the hard colour singlet exchange process observed at the Tevatron in events that have a large rapidity gap between outgoing jets. We include the effects of multiple interactions…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. E. Cox , J. R. Forshaw , L. Lonnblad