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Minijet production in hadronic and nuclear collisions through a BFKL pomeron ladder is studied for the energies of the future LHC heavy-ion collisions. We use unintegrated gluon densities compatible with the small-$x$ increase of parton…

High Energy Physics - Phenomenology · Physics 2009-10-28 K. J. Eskola , A. V. Leonidov , P. V. Ruuskanen

We critically examine the QCD predictions for the $Q^2$ dependence of the electron-proton deep-inelastic structure function $F_2(x,Q^2)$ in the small $x$ region, which is being probed at HERA. The standard results based on next-to-leading…

High Energy Physics - Phenomenology · Physics 2010-03-25 A. J. Askew , K. Golec , J. Kwiecinski , A. D. Martin , P. J. Sutton

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

We present a determination of the parton distribution functions of the proton in which NLO and NNLO fixed-order calculations are supplemented by NLLx small-x resummation. Deep inelastic structure functions are computed consistently at…

High Energy Physics - Phenomenology · Physics 2018-05-09 Richard D. Ball , Valerio Bertone , Marco Bonvini , Simone Marzani , Juan Rojo , Luca Rottoli

We give the first phenomenological predictions of cross sections and azimuthal correlations for the inclusive di-hadron production in the full NLA BFKL approach. This process shares the same theoretical framework with the well konwn…

High Energy Physics - Phenomenology · Physics 2017-10-03 Francesco Giovanni Celiberto , Dmitry Yu. Ivanov , Beatrice Murdaca , Alessandro Papa

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 2007-05-23 Erwin Mirkes , Dieter Zeppenfeld

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

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

In the framework of semihard QCD approach, with the emphasis on the BFKL evolution of gluon distributions, we calculate the differential cross sections of inclusive $D^{*\pm}$ mesons electroproduction at HERA and confront our results with…

High Energy Physics - Phenomenology · Physics 2016-09-06 S. P. Baranov , N. P. Zotov

A study of cross sections and azimuthal correlation moments for the inclusive production of two, light charged hadrons featuring large transverse momenta and well separated in rapidity at LHC energies, including BFKL resummation effects…

High Energy Physics - Phenomenology · Physics 2017-10-04 Francesco Giovanni Celiberto , Dmitry Yu. Ivanov , Beatrice Murdaca , Alessandro Papa

I review recent developments in the study of the low-x partonic content of protons and nuclei, with a focus on the latter, as one expects possible deviations from linear QCD evolution to be most pronounced in that case. I give examples of…

High Energy Physics - Phenomenology · Physics 2020-07-15 Thomas Peitzmann

We calculate the Regge trajectories of the subleading BFKL singularities and eigenfunctions for the running BFKL pomeron in the color dipole representation. We obtain a viable BFKL-Regge expansion of the proton structure function…

High Energy Physics - Phenomenology · Physics 2009-10-30 N. N. Nikolaev , B. G. Zakharov , V. R. Zoller

Inclusive cross-sections for gluon production in collision of two mucleons with two nucleons are studied in the BFKL approach. Various contributions include emission from the pomerons attached to the participants, from the BFKL interactions…

High Energy Physics - Phenomenology · Physics 2015-06-15 M. A. Braun

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 review recent results on the inclusive electroproduction of light hadrons at next-to-leading order in the parton model of quantum chromodynamics implemented with fragmentation functions and present updated predictions for HERA…

High Energy Physics - Phenomenology · Physics 2017-08-23 Bernd A. Kniehl

Double inclusive cross-sections for gluon production in collision of two nucleons with two nucleons are studied in the BFKL approach. Various contributions include emission from the pomerons attached to the participants, from the BFKL…

High Energy Physics - Phenomenology · Physics 2015-06-18 M. A. Braun

It is argued that the QCD dipole picture allows to build an unified theoretical description -based on BFKL dynamics- of the total and diffractive nucleon structure functions. This description is in qualitative agreement with the present…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Bialas , R. Peschanski , Ch. Royon

We consider within QCD collinear factorization the inclusive process $p+p\to h_1+h_2+X$, where the pair of identified hadrons, $h_1,h_2$, having large transverse momenta is produced in high-energy proton-proton collisions. In particular, we…

High Energy Physics - Phenomenology · Physics 2015-06-05 Dmitry Yu. Ivanov , Alessandro Papa

We discuss the BFKL approach to processes with large momentum transferred through a rapidity gap. The Mueller and Tang scheme to the BFKL non-forward parton-parton elastic scattering amplitude at large $t$, is extended to include higher…

High Energy Physics - Phenomenology · Physics 2009-11-07 L. Motyka , A. D. Martin , M. G. Ryskin

We present a BFKL phenomenology of structure functions in the framework of the generalized BFKL equation for the dipole cross section proposed by us recently. We show that the HERA measurements of excitation of charm at $Q^{2} \lsim $10…

High Energy Physics - Phenomenology · Physics 2016-08-14 N. N. Nikolaev , B. G. Zakharov