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43 papers · 1 filter
Cross section and single transverse target spin asymmetry for backward pion electroproduction
B. Pire, K. Semenov-Tian-Shansky, L. Szymanowski
Nucleon to meson transition distribution amplitudes (TDAs), non-diagonal matrix elements of nonlocal three quark operators between a nucleon and a meson states, arise within the co…
A consistent model for πN transition distribution amplitudes and backward pion electroproduction
J. P. Lansberg, B. Pire, K. Semenov-Tian-Shansky +1
The extension of the concept of generalized parton distributions leads to the introduction of baryon to meson transition distribution amplitudes (TDAs), non-diagonal matrix element…
Anomaly-free scalar perturbations with holonomy corrections in loop quantum cosmology
Thomas Cailleteau, Jakub Mielczarek, Aurelien Barrau +1
Holonomy corrections to scalar perturbations are investigated in the loop quantum cosmology framework. Due to the effective approach, modifications of the algebra of constraints ge…
Solution of the relativistic bound state problem for hadrons
H. P. Morsch
A second order extension of the QED Lagrangian (including boson-boson coupling) has been used to describe q\bar q hadrons. Assuming massless elementary fermions (quantons) this res…
Measurement of the virtual-photon asymmetry A2 and the spin-structure function g2 of the proton
The HERMES Collaboration, A. Airapetian, N. Akopov +132
A measurement of the virtual-photon asymmetry A_2(x,Q^2) and of the spin-structure function g_2(x,Q^2) of the proton are presented for the kinematic range 0.004 < x < 0.9 and 0.18…
Measurement of Production Properties of Positively Charged Kaons in Proton-Carbon Interactions at 31 GeV/c
SHINE Collaboration, N. Abgrall, A. Aduszkiewicz +135
Spectra of positively charged kaons in p+C interactions at 31 GeV/c were measured with the NA61/SHINE spectrometer at the CERN SPS. The analysis is based on the full set of data co…