نتایج جستجو برای: cross section dependence
تعداد نتایج: 759052 فیلتر نتایج به سال:
This paper provides a review of the literature on unit roots and cointegration in panels where the time dimension (T ), and the cross section dimension (N) are relatively large. It distinguishes between the first generation tests developed on the assumption of the cross section independence, and the second generation tests that allow, in a variety of forms and degrees, the dependence that might...
We propose to use the High Momentum Spectrometer of Hall C combined with a PbWO4 electromagnetic calorimeter in order to perform high precision measurements of the Deeply Virtual Compton Scattering (DVCS) cross section. A wide range of kinematics accessible with an 11 GeV electron beam off an unpolarized proton target will be covered. The azimuthal, energy and helicity dependences of the cross ...
We calculated the complete next-to-leading order(NLO) QCD corrections to the tt̄bb̄ production process at a γγ collider in the standard model(SM). The calculation of the one-loop QCD correction includes the evaluations of the hexagon and pentagon amplitudes. We studied the NLO QCD corrected total cross section, the distributions of transverse momenta of final topand bottom-quark states, and the d...
This paper provides a review of the literature on unit roots and cointegration in panels where the time dimension (T ), and the cross section dimension (N) are relatively large. It distinguishes between the rst generation tests developed on the assumption of the cross section independence, and the second generation tests that allow, in a variety of forms and degrees, the dependence that might ...
Quantitative predictions for the energy and A dependence of the nuclear photoabsorption cross section and inelastic electron-nucleus scattering are given. In general each nucleon does not contribute equally to the total photon-nucleus cross section when coherent contributions of photoproduced hadrons are taken into account. At low energies (E Y N 1 BeV) the cross sections are proportional to nu...
We employ values of the colour dipole cross section extracted from electropro-duction and photoproduction data to show that gluon saturation effects are not required by the current HERA data but will become important in the THERA energy region. 1 The colour dipole model Singly dissociative diffractive γ p processes are conveniently described in the rest frame of the hadron using a picture in wh...
This appendix contains additional technical derivations and supplementary material for the main paper. Section 1 presents model solutions for the special case where firm productivity and consumer tastes are Pareto distributed. Section 2 contains the complete proof of Proposition 3 in the paper. Section 3 shows that it is straightforward to extend the model to introduce dependence in consumer ta...
in this paper, a novel approximate solution to determine the nusselt number for thermally developed, slug (low-prandtl), laminar, single phase flow in channels of arbitrary cross section is presented. using the saint-venant principle in torsion of beams, it is shown that the thermally developed nusselt number for low-prandtl flow is only a function of the geometrical parameters of the channel c...
The presence of 2γ-exchange in electron proton elastic scattering is discussed. From C-invariance and crossing symmetry, 2γ contribution induces a specific dependence of the reduced cross section on the variable ǫ. No evidence of such dependence exists in the available experimental data.
Our calculation of the total cross section for inclusive production of t t pairs in hadron collisions is presented. The principal ingredient of the calculation is resummation of the universal leading-logarithm e ects of gluon radiation to all orders in the quantum chromodynamics coupling strength, restricted to the region of phase space that is demonstrably perturbative. We derive the perturbat...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید