Using the data on deep inelastic muon scattering on iron and deuterium the ratio of the nucleon structure functions F 2 N ( Fe )/ F 2 N ( D ) is presented. The observed x -dependence of this ratio is ...

We consider the three-dimensional Dirac equation in spherical coordinates with coupling to static electromagnetic potential. The space components of the potential have angular (non-central) dependence ...

The search for the decay μ + → e + e + e − with the SINDRUM spectrometer has been continued. The result is a new upper limit for the branching ratio B μ→3 e = Γ(μ→3 e ) Γ(μ→ e 2ν) < 1.0 × 10 −12 (90% ...

We study N=∞ lattice gauge theory at finite temperature by Monte Carlo methods using an asymmetric coupling version of the twisted Equchi-Kawai model. The data favor a first-order deconfining ...

We compute the four-loop (O(α 4 )) metric β-function for the bosonic two-dimensional non-linear σ-model. We employ an indirect method which obviates a significant part of the explicit calculation. Our ...

Polarization effects are considered in colliding γe and γγ beams, which are proposed to be obtained on the basis of linear e + e − colliders (by backward Compton scattering of laser light on electron ...

An alternative calculation technique in the generator-coordinate method (GCM) has been proposed in which square-well potential between nucleon-pairs is employed, instead of the harmonic oscillator ...

We develop a Generalized-Vector-Meson Dominance Model (GVDM) for the invariantN-Δ transition form factors which incorporates the correct largeq2 power behaviour of QCD and describes the available ...

If high energy heavy ion collisions lead to the formation of a hot quark-gluon plasma, then colour screening prevents cc binding in the deconfined interior of the interaction region. To study this ...

Four-point correlation functions are calculated for the basic operators in 2D conformal invariant theories with the central charge of the corresponding Virasoro algebra C ≤1. Based on these results, ...

String theory effective actions compatible with two recent computations of the two-loop β-functions in σ-models (including torsion) are constructed. The equivalence of these actions is explicitly ...

Differential elastic cross-section ratios and absolute cross sections have been measured for C12,13 at 29.2-and 49.5-MeV average π− energy and for O16,18 at 29.2 MeV. Range telescopes detected the ...