313 citations · 2k across the 81 of their papers we have counts for
58 papers · 1 filter
Positivity and unitarity constraints on dipole gluon distributions
Robi Peschanski
In the high-energy domain, gluon transverse-momentum dependent distributions in nuclei obey constraints coming from positivity and unitarity of the colorless QCD dipole distributio…
Fourier-positivity constraints on QCD dipole models
Bertrand G. Giraud, Robi Peschanski
Fourier-positivity, i.e. the mathematical property that a function has a positive Fourier transform, can be used as a constraint on the parametrization of QCD dipole-target cross-s…
Dynamical entropy of dense QCD states
Robi Peschanski
We discuss dense states of QCD matter formed in high-energy hadronic and heavy-ion collisions from the point of view of statistical physics of non-equilibrium processes. For this s…
Asymmetric 1+1-dimensional hydrodynamics in collision
Andrzej Bialas, Robi Peschanski
The possibility that particle production in high-energy collisions is a result of two asymmetric hydrodynamic flows is investigated, using the Khalatnikov form of the 1+1-dimension…
Studies of scaling properties in deep inelastic scattering
Christophe Royon, Robert Peschanski
We study the scaling properties in deep inelastic scattering using the most recent combined structure function data from the H1 and ZEUS collaborations. We also perform a dir…
Extended Geometric Scaling from Generalized Traveling Waves
Robi Peschanski
We define a mapping of the QCD Balitsky-Kovchegov equation in the diffusive approximation with noise and a generalized coupling allowing a common treatment of the fixed and running…
Scaling properties in deep inelastic scattering
C. Royon, G. Beuf, R. Peschanski +1
Using the "Quality Factor" (QF) method, we analyse the scaling properties of deep-inelastic processes at HERA and fixed target experiments for x<10^{-2}.
Introduction to String Theory and Gauge/Gravity duality for students in QCD and QGP phenomenology
Robi Peschanski
String theory has been initially derived from motivations coming from strong interaction phenomenology,but its application faced deep conceptual and practical difficulties. The str…
Limiting fragmentation from scale-invariant merging of fast partons
A. Bialas, A. Bzdak, R. Peschanski
Exploiting the idea that the fast partons of an energetic projectile can be treated as sources of color radiation interpreted as wee partons, it is shown that the recently observed…
On the maximal noise for stochastic and QCD traveling waves
Robi Peschanski
Using the relation of a set of nonlinear Langevin equations with reaction-diffusion processes, we note the existence of a maximal strength of the noise for the stochastic traveling…
Systematic Analysis of Scaling Properties in Deep Inelastic Scattering
Guillaume Beuf, Robi Peschanski, Christophe Royon +1
Using the ``Quality Factor'' (QF) method, we analyse the scaling properties of deep-inelastic processes at HERA and fixed target experiments for x<0.01. We look for scaling formula…
Quark-Gluon Plasma/Black Hole duality from Gauge/Gravity Correspondence
Robi Peschanski
The Quark-Gluon Plasma (QGP) is the QCD phase of matter expected to be formed at small proper-times in the collision of heavy-ions at high energy. Experimental observations seem to…
Universality of traveling waves with QCD running coupling
Guillaume Beuf, Robi Peschanski, Sebastian Sapeta
``Geometric scaling'', i.e. the dependence of DIS cross-sections on the ratio Q/Q_S, where Q_S(Y) is the rapidity-dependent \saturation scale, can be theoretically obtained from un…
Non-forward Balitsky-Kovchegov equation and Vector Mesons
Robi Peschanski, Cyrille Marquet, Gregory Soyez
Considering the Balitsky-Kovchegov QCD evolution equation in full momentum space, we derive the travelling wave solutions expressing the nonlinear saturation constraints on the dip…
QCD, Spin-Glass and String
Robi Peschanski
When quarks and gluons are led to form a dense medium, like in high energy or/and heavy-ion collisions, it is interesting to ask the question which are the relevant degrees of free…
QCD traveling waves beyond leading logarithms
R. Peschanski, S. Sapeta
We derive the asymptotic traveling-wave solutions of the nonlinear 1-dimensional Balitsky-Kovchegov QCD equation for rapidity evolution in momentum-space, with 1-loop running coupl…
Next-leading BFKL effects in forward-jet production at HERA
O. Kepka, C. Marquet, R. Peschanski +1
We show that next-leading logarithmic (NLL) Balitsky-Fadin-Kuraev-Lipatov (BFKL) effects can be tested by the forward-jet cross sections recently measured at HERA. For dσ/dx, the N…
The Virtual Photon-Gluon Impact Factor with Massive Quarks and Exact Gluon Kinematics
C. D. White, R. Peschanski, R. S. Thorne
We calculate the impact factor coupling a virtual photon to a gluon via a massive quark-antiquark pair at LL order, but with the imposition of the correct gluon kinematics. Exact a…
Spin-glass model of QCD near saturation
Robi Peschanski
We establish a connection between the cascading of gluon momenta modeled with the diffusive approximation of the Balitsky-Fadin-Kuraev-Lipatov kernel and the thermodynamics of dire…
Consequences of strong fluctuations on high-energy QCD evolution
C. Marquet, R. Peschanski, G. Soyez
We investigate the behaviour of the QCD evolution towards high-energy, in the diffusive approximation, in the limit where the fluctuation contribution is large. Our solution for th…
Traveling waves in high energy QCD
Robi Peschanski
Saturation is expected to occur when a high density of partons (mainly gluons)- or equivalently strong fields in Quantum Chromodynamics (QCD) - is realized in the weak coupling reg…
Remarks on Diffractive Production of the Higgs Boson
R. Peschanski
Central diffractive production of the Higgs boson has recently received much attention as a potentially interesting production mode at the LHC. We shall review some of the wishes a…
QCD traveling waves at non-asymptotic energies
C. Marquet, R. Peschanski, G. Soyez
Using consistent truncations of the BFKL kernel, we derive analytical traveling-wave solutions of the Balitsky-Kovchegov saturation equation for both fixed and running coupling. A…
Infrared instability from nonlinear QCD evolution
R. Enberg, R. Peschanski
Using the Balitsky-Kovchegov (BK) equation as an explicit example, we show that nonlinear QCD evolution leads to an instability in the propagation toward the infrared of the gluon…