Cross section of the formation of mesic molecular complex (MMC) in the reactions (tp.)F+ (D2).;K; -+ [(dtp.)iVdee].,K, is calculated at low energies (E < 100 K). We assume the Breit-Wigner energy dependence of the cross section. In calculating the entrance widths the electron screening and various orbital moments of the incident tp.-atom were taken into account. Owing to anharmonic corrections ...

Within the color dipole gBFKL dynamics applied to the diffraction slope, we predict an anomalous t dependence of the differential cross section as a function of energy and Q for production of radially excited V ′(2S) light vector mesons in contradiction with a well known standard monotonous tbehaviour for V (1S) mesons. The origin of this phenomenon is based on the interplay of the nodal struct...

The energy and four-momentum (Q 2) dependence of the photo-absorption cross section on the proton is calculated for helicity-1 2 and-3 2 states. An effective Lagrangian model is used, formulated in terms of meson and baryon degrees of freedom, which obeys crossing symmetry, unitarity, Lorentz and gauge invariance. The difference in the cross sections for the two helicity states, the Drell-Hearn...

A b s t r a c t We predict a strikingly different A and Q 2 dependence of quasielastic leptoproduction of the ρ 0 (1S)-meson and its radial excitation ρ ′ (2S) on nuclei. Whereas for the ρ 0 production nuclear transparency T A decreases monotonically with A, for the ρ ′ nuclear transparency T A can have the counterintuitive nonmonotonic A-dependence, having the minimum for light nuclei, and inc...

We respond to some criticism questioning the validity of the current Standard Model Higgs exclusion limits at the Tevatron, due to the significant dependence of the dominant production cross section from gluon-gluon fusion on the choice of parton distribution functions (PDFs) and the strong coupling (αS). We demonstrate the ability of the Tevatron jet data to discriminate between different high...

Pion double charge exchange ~DCX! on nuclear targets has been extensively studied, both experimentally and theoretically, throughout the last two decades. Because at least two nucleons must be involved in the process, the study of DCX is a natural tool for exploring nucleon-nucleon correlations. In the course of these studies at low energies, a prominent peak in the (p,p) cross section in the n...

The production of pions emitted backward in inelastic neutrino-nucleus interactions is analyzed within the impulse approximation in the framework of the dual parton model. We focus on the Q2-dependence of the multiplicity of negative pions, normalized to the total cross section of the reaction ν + A → μ+X. The inclusion of planar (one-Reggeon exchange) and cylindrical (one-Pomeron exchange) gra...

This paper considers methods for estimating the slope coe¢ cients in large panel data models that are robust to the presence of various forms of error cross section dependence. It introduces a general framework where error cross section dependence may arise because of unobserved common e¤ects and/or error spillover e¤ects due to spatial or other forms of local dependencies. Initially, this pape...

The energy dependence of the total hadronic cross sections is caused by gluon bremsstrahlung which we treat nonperturbatively. It is located at small transverse distances about 0.3 fm from the valence quarks. The cross section of gluon radiation is predicted to exponentiate and rise with energy as s(delta) with delta = 0.17+/-0. 01. The total cross section also includes a large energy independe...