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
19 papers · 2 filters
Transversity in Drell-Yan process of polarized protons and antiprotons in PAX experiment
A. V. Efremov, K. Goeke, P. Schweitzer
Estimates are given for the double spin asymmetry in lepton-pair production from collisions of transversely polarized protons and antiprotons for the kinematics of the recently pro…
Transversity distribution in spin asymmetries in semi-inclusive DIS and in the Drell-Yan process
A. V. Efremov, K. Goeke, P. Schweitzer
A review is given on single spin asymmetries in deep inelastic semi-inclusive scattering (SIDIS) and their possible theoretical understanding in the framework of QCD-induced factor…
Magnetic moments of the pentaquarks
Hyun-Chul Kim, Ghil-Seok Yang, Michal Praszalowicz +1
We present in this talk a recent analysis for the magnetic moments of the baryon antidecuplet within the framework of the chiral quark-soliton model with linear corrections c…
Present understanding of the nucleon spin structure
A. Metz
The present understanding of the spin structure of the nucleon is briefly reviewed. The main focus is on parton helicity distributions, orbital angular momentum of partons as defin…
A Primer on Partial Wave Analysis
Klaus Peters
In the 90s of the last century high statistics experiments with fully equipped 4 detectors have lead to a better insight in the spectrum of hadrons. In particular the finding of…
Pentaquarks: Review on Models and Solitonic Calculations of Antidecuplet Magnetic Moments
Klaus Goeke, Hyun-Chul Kim, Michał Praszałowicz +1
After a quick look at the present status of experiments we shortly review in a first step the ongoing discussions on some of the basic theoretical approaches to pentaquarks: Chiral…
Magnetic susceptibility of the QCD vacuum
Hyun-Chul Kim, M. Musakhanov, M. Siddikov
We investigate the magnetic susceptibility of the QCD vacuum, based on the instanton vacuum. Starting from the instanton liquid model for the instanton vacuum, we derive the light-…
The generalized parton distribution function (E^u+E^d)(x,xi,t) of the nucleon in the chiral quark soliton model
J. Ossmann, M. V. Polyakov, P. Schweitzer +2
The unpolarized spin-flip isoscalar generalized parton distribution function (E^u+E^d)(x,xi,t) is studied in the large-Nc limit at a low normalization point in the framework of the…
Octet, decuplet and antidecuplet magnetic moments in the chiral quark soliton model revisited
Ghil-Seok Yang, Hyun-Chul Kim, Michał Praszałowicz +1
We reanalyse the magnetic moments of the baryon octet, decuplet, and antidecuplet within the framework of the chiral quark-soliton model, with SU(3) symmetry breaking taken into ac…
Pion form factor analysis using NLO analytic perturbation theory
N. G. Stefanis
I present results for the pion's electromagnetic form factor in the spacelike region, which implement the most advanced perturbative information currently available for this observ…
Some comments on the handbag approach to wide-angle exclusive scattering
P. Kroll
The handbag mechanism for wide-angle exclusive scattering reactions is discussed and compared to other theoretical approaches. The role of power laws in observables is critically e…
Deep inside the pion. Reconciling QCD theory with data
A. P. Bakulev, S. V. Mikhailov, N. G. Stefanis
Recent developments in the QCD description of the pion structure are reviewed. The CLEO pion-photon transition data analysis favors a distribution amplitude for the pion that is do…
The Intense Radiation Gas
M. Marklund, P. K. Shukla, B. Eliasson
We present a new dispersion relation for photons that are nonlinearly interacting with a radiation gas of arbitrary intensity due to photon-photon scattering. It is found that the…
Universality of soft and collinear factors in hard-scattering factorization
John C. Collins, Andreas Metz
Universality in QCD factorization of parton densities, fragmentation functions, and soft factors is endangered by the process dependence of the directions of Wilson lines in their…
Observations on dA scattering at forward rapidities
V. Guzey, M. Strikman, W. Vogelsang
We point out that the suppression in the ratio R_dAu recently observed by the BRAHMS collaboration in forward scattering is stronger than usually appreciated. This is related to th…
Transversity distribution function in hard scattering of polarized protons and antiprotons in the PAX experiment
A. V. Efremov, K. Goeke, P. Schweitzer
Estimates are given for the double spin asymmetry in lepton pair production from collisions of transversely polarized protons and antiprotons for the kinematics of the recently pro…
Decay properties of new D-mesons
Ya. I. Azimov, K. Goeke
We consider radiative and pionic decays of the new D_s-mesons in the framework of a phenomenologically motivated approach. Present data on ratios of the two kinds of decays can be…
Twist-3 Single-Spin Asymmetries in Semi-Inclusive Deep-Inelastic Scattering
A. Metz, M. Schlegel
The single spin asymmetries for a longitudinally polarized lepton beam or a longitudinally polarized nucleon target in semi-inclusive deep-inelastic scattering are twist-3 observab…
Production of Theta+ in gamma + D -> Lambda + Theta+ and gamma + D -> Sigma + Theta+ reactions
V. Guzey
The gamma + D -> Lambda + Theta+ and gamma + D -> Sigma + Theta+ reactions can be used to determine the width of Theta+ almost model-independently. We calculate the differential cr…