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
11 papers · 2 filters
The intrinsic charm contribution to the proton spin
M. V. Polyakov, A. Schaefer, O. V. Teryaev
The charm quark contribution to the first moment of is calculated using a heavy mass expansion of the divergence of the singlet axial current. It is shown to be small.
Off-mass-shell Sudakov-like suppression factor for the fermionic four-point function in QCD
A. I. Karanikas, C. N. Ktorides, N. G. Stefanis +1
We consider a four-point process, associated with a wide-angle elastic scattering of two off-mass-shell spin-1/2 matter particles, in a non-abelian gauge theory. On the basis of a…
Hard exclusive electroproduction of two pions and their resonances
M. V. Polyakov
We study the hard exclusive production of two pions in the virtual photon fragmentation region with various invariant masses including the resonance region. The amplitude is expres…
Pion and photon light-cone wave functions from the instanton vacuum
V. Yu. Petrov, M. V. Polyakov, R. Ruskov +2
The leading-twist wave functions of the pion and the photon at a low normalization point are calculated in the effective low--energy theory derived from the instanton vacuum. The p…
Pion form factors with improved infrared factorization
N. G. Stefanis, W. Schroers, H. -Ch. Kim
We calculate electromagnetic pion form factors with an analytic model for which is infrared (IR) finite without invoking a ``freezing'' hypothesis. We show that fo…
Symmetry conserving approach to the quantization of the non-topological SU(3) soliton
M. Praszalowicz, T. Watabe, K. Goeke
We reconsider canonical quantization of the rotating soliton in the SU(3) Chiral Quark-Soliton Model. We show that at the level of 1/N_c, in contrast to the SU(2) version of the mo…
Two-pion light-cone distribution amplitudes from the instanton vacuum
M. V. Polyakov, C. Weiss
We calculate the two-pion light-cone distribution amplitudes in the effective low-energy theory based on the instanton vacuum. These generalized distribution amplitudes describe th…
Tensor susceptibilities of the vacuum from constituent quarks
Wojciech Broniowski, Maxim Polyakov, Hyun-Chul Kim +1
We show that the constituent quark model leads to simple expressions for the isoscalar and isovector tensor susceptibilities of the vacuum. The found values are negative and of mag…
Spectrum of the Odderon Charge for Arbitrary Conformal Weights
Michal Praszalowicz, Andrzej Rostworowski
The odderon equation is studied in terms of the variable suggested by the modular invariance of the 3 Reggeon system. Odderon charge is identified with the cross-product of three c…
Isovector unpolarized quark distribution in the nucleon in the large-N_c limit
P. V. Pobylitsa, M. V. Polyakov, K. Goeke +2
We calculate the isovector (flavor-nonsinglet) unpolarized quark- and antiquark distributions in the nucleon at a low normalization point in the large-N_c limit. The nucleon is des…
Flavor structure of the octet magnetic moments
Hyun-Chul Kim, Michal Praszałowicz, Maxim V. Polyakov +1
We use the chiral quark-soliton model to identify all symmetry breaking terms linear in and investigate the strange magnetic moment in a ``model-independent'' way. Assuming…