2.7k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of TurinIT1.2k papers
- University of ManchesterGB1.1k papers
- University of FerraraIT1.1k papers
- Budker Institute of Nuclear PhysicsRU1.1k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1k papers
- Centre National de la Recherche ScientifiqueFR1k papers
- Johannes Gutenberg University MainzDE1k papers
- University of PerugiaIT1k papers
- Uppsala UniversitySE912 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di FerraraIT903 papers
- University of GroningenNL898 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR888 papers
30 papers · 2 filters
Partonic Pole Matrix Elements for Fragmentation
S. Meissner, A. Metz
A model-independent analysis of collinear three-parton correlation functions for fragmentation is performed. By investigating their support properties it is shown, in particular, t…
TMD PDF's: gauge invariance, RG properties and Wilson lines
I. O. Cherednikov, N. G. Stefanis
The UV divergences associated with transverse-momentum dependent (TMD) parton distribution functions (PDF) are calculated together with the ensuing one-loop anomalous dimensions in…
Dual parametrization of GPDs versus the double distribution Ansatz
Maxim V. Polyakov, Kirill M. Semenov-Tian-Shansky
We establish a link between the dual parametrization of GPDs and a popular parametrization based on the double distribution Ansatz, which is in prevalent use in phenomenological ap…
On the mistake in the implementation of the minimal model of the dual parameterization and resulting inability to describe the high-energy DVCS data
V. Guzey, T. Teckentrup
We correct the mistaken claim made in \cite{Guzey:2005ec,Guzey:2006xi} that the minimal model of the dual parameterization of nucleon generalized parton distributions (GPDs) gives…
Lorentz invariance relations between parton distributions and the Wandzura-Wilczek approximation
A. Metz, P. Schweitzer, T. Teckentrup
The violation of the so-called Lorentz invariance relations between parton distribution functions is considered in a model independent way. It is shown that these relations are not…
Chiral Logarithms Tamed
N. Kivel, M. V. Polyakov, A. Vladimirov
We derive non-linear recursion relations for the leading chiral logarithms (LLs). These relations not only provide a very efficient method of computation of LLs (e.g. the 33-loop c…
Refined analysis of photon leptoproduction off spinless target
Andrei V. Belitsky, Dieter Mueller
We calculate the differential cross section for real photon electroproduction off spinless hadron which sevres as a main probe of the hadrons structure via the concept of generaliz…
Large-N Summation of Chiral Logs for Generalized Parton Distributions
N. Kivel, M. V. Polyakov, A. Vladimirov
We demonstrate that in the region of Bjorken x ~m_π^2/(4πF_π)^2 and/or x ~|t|/(4πF_π)^2 the standard ChPT for the pion GPDs fails and one must perform all order resummation of ChPT…
Dilepton production from polarized hadron hadron collisions
S. Arnold, A. Metz, M. Schlegel
In this paper we present a comprehensive formalism for dilepton production from the collision of two polarized spin- hadrons by identifying the general angular distri…
New results on gauge-invariant TMD PDFs in QCD
I. O. Cherednikov, N. G. Stefanis
The renormalization properties of unintegrated (transverse-momentum dependent) parton distribution functions (TMD PDF's) are used for analyzing their completely gauge-invariant def…
Pretzelosity distribution function
H. Avakian, A. V. Efremov, P. Schweitzer +1
The 'pretzelosity' distribution is discussed. Theoretical properties, model results, and perspectives to access experimental information on this leading twist, transverse momentum…
Generalized transverse momentum dependent parton distributions of the nucleon
S. Meissner, A. Metz, M. Schlegel
We present first results from our analysis of the most general quark-quark correlator of the nucleon, which can be parameterized in terms of so-called generalized transverse moment…
New Narrow Nucleon N*(1685)
V. Kuznetsov, M. V. Polyakov
We argue that the existence of a new narrow (Gamma < 25 MeV) nucleon resonance N*(1685) is strongly supported by recent data on eta photoproduction off the nucleon. The resonance h…
Fitting DVCS amplitude in moment-space approach to GPDs
Kresimir Kumericki, Dieter Mueller, Kornelija Passek-Kumericki
We describe small-x_Bj deeply virtual Compton scattering measurements at HERA in terms of generalized parton distributions at leading order of perturbation series.
Semileptonic hyperon decays in the self-consistent SU(3) chiral quark-soliton model
Tim Ledwig, Antonio Silva, Hyun-Chul Kim +1
We investigate the semileptonic hyperon decays within the framework of the self-consistent SU(3) chiral quark-soliton model (QSM). We take linear rotational as well as l…
New vistas of the meson structure in QCD from low to high energies
N. G. Stefanis
This talk presents issues pertaining to the quark structure of the pion within QCD, both from the theoretical and from the experimental point of view. We review and discuss the pio…
Duality between different mechanisms of QCD factorization in γ^*γcollisions
I. V. Anikin, I. O. Cherednikov, N. G. Stefanis +1
We study the phenomenon of duality in hard exclusive reactions to which QCD factorization applies. Considering "two-photon"-like processes in the scalar model and also hadr…
Axial-vector transitions and strong decays of the baryon antidecuplet in the self-consistent SU(3) chiral quark-soliton model
Tim Ledwig, Hyun-Chul Kim, Klaus Goeke
We investigate the axial-vector transition constants of the baryon antidecuplet to the octet and decuplet within the framework of the self-consistent SU(3) chiral quark-soliton mod…
Pretzelosity distribution function h_1T^perp and the single spin asymmetry A_UT^sin(3phi-phi_S)
H. Avakian, A. V. Efremov, P. Schweitzer +1
The leading twist transverse momentum dependent parton distribution function h_1T^perp, which is sometimes called ``pretzelosity,'' is studied. We review the theoretical properties…
Unitarization of elastic amplitude on SO_mu(2.1) group
O. N. Soldatenko, A. N. Vall, A. A. Vladimirov
We obtain the solution of the unitarity equation for the elastic processes in terms of the expansion coefficients of the amplitude as a function on the SO_mu(2.1) group. This appro…
Generalized parton correlation functions for a spin-0 hadron
S. Meissner, A. Metz, M. Schlegel +1
The fully unintegrated, off-diagonal quark-quark correlator for a spin-0 hadron is parameterized in terms of so-called generalized parton correlation functions. Such objects are of…
Sum rules and dualities for generalized parton distributions: is there a holographic principle?
Kresimir Kumericki, Dieter Mueller, Kornelija Passek-Kumericki
To leading order approximation, the physical content of generalized parton distributions (GPDs) that is accessible in deep virtual electroproduction of photons or mesons is contain…
Generalized parton distributions and Deeply Virtual Compton Scattering in Color Glass Condensate model
K. Goeke, V. Guzey, M. Siddikov
Within the framework of the Color Glass Condensate model, we evaluate quark and gluon Generalized Parton Distributions (GPDs) and the cross section of Deeply Virtual Compton Scatte…
Dual parameterization and Abel transform tomography for twist-3 DVCS
Alena M. Moiseeva, Maxim V. Polyakov
We derive dual parameterization for the DVCS amplitude to the twist-3 accuracy. The relation of the dual parameterization to the Abel transform tomography for amplitudes of hard ex…