The inclusive reaction pA → pK s +X was studied at IHEP accelerator with 70 GeV/c proton beam using SVD-2 detector. Two different samples of K s , statistically independent and belonging to different phase space regions, were used in the analyses and a narrow baryon resonance with the mass M = 1523±2(stat.)±3(syst.) MeV/c was observed in both samples of the data. The combined statistical signif...

The effect of interactions on dynamics of coupled motor proteins is investigated theoretically. A simple stochastic discrete model, that allows to calculate explicitly the dynamic properties of the system, is developed. It is shown that there are two dynamic regimes, depending on the interaction between the particles. For strong interactions the motor proteins move as one tight cluster, while f...

We present the calculation of Next-to-Leading-Order Quantum Chromo Dynamics corrections for the production of a W or Z weak boson associated with a bottom anti-bottom quark pair at hadron colliders (pp̄, pp → W/Z bb̄), including the effects of a non-zero bottomquark mass. We find a considerable reduction of the renormalization and factorization scale dependence of our results with respect to Lead...

We present an optical potential analysis of the p̄p interactions at low energies. Our optical potential is purely phenomenological, and has been parametrized on data recently obtained by the Obelix Collaboration at momenta below 180 MeV/c. It reasonably fits annihilation and elastic data below 600 MeV/c, and allows us for an evaluation of the elastic cross section and ρ−parameter down to zero ki...

The generalized vector dominance model for inelastic electron nucleon scattering is extended to the small W’ region by taking into account the increase of -tmin with cl2 in exclusive electroproduction. (Submitted to Physics Letters. ) * Work supported in part by the U. S. Atomic Energy Commission and the National Science Foundation. ** Permanent address: Deutsches Elektronen Synchrotron, DESY, ...

New measurements of the neutral current deep inelastic scattering (DIS) e + p cross section performed by the H1 collaboration are discussed. The analysis of the structure function F2 at low 2 < Q 2 < 100 GeV 2 leads to a determination of the gluon density based on data taken in 1995-1996. An extension of this analysis towards large y < 0:86 allowed a new determination of the longitudinal proton...

We explore the potential of electron-photon colliders to measure fundamental supersymmetry parameters via the processes ee ! ~ e~ 0 (selectron-neutralino) and ee ! ~ ~ ? (sneutrino-chargino). Given the ~ 0 and ~ ? masses from e + e ? and hadron collider studies, cross section ratios (?)==(+) for opposite photon helicities determine the ~ L , ~ e L and ~ e R masses, independent of the sparticle ...

Optimization approach to define geometry (parameters) of radial matching section in RFQ accelerator is suggested. This approach gives wider opportunities to design of radial matching section because it does not have certain prescribed laws of variation of focusing strength along the section. INTRODUCTION Acceptance at the entrance of RFQ accelerator, as it is known, depends on time and rotates ...

and Applied Analysis 3 Ma and Xu 15 also applied the fixed point theorem in cones to obtain some results on the existence of generalized positive solutions. It is the purpose of this paper to show some new results on the existence and multiplicity of generalized positive solutions of 1.4 , 1.8 by Dancer’s global bifurcation theorem. To wit, we get the following. Theorem 1.3. Let h : 2 → 0,∞ , f...

We give asymptotic large deviations estimates for the volume inside a domain U of the zero set of a random holomorphic section of the N -th power of a positive line bundle on a compact Kähler manifold. In particular, we show that for all δ > 0, the probability that this volume differs by more than δN from its average value is less than exp(−Cδ,UN), for some constant Cδ,U > 0. As a consequence, ...