Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Bakmaev, S."'
We calculate the bilinear combination of Dirac tensors describing the creation of a pair of charged particle (pi-meson or leptons) by virtual photons integrated on the final particle phase volume. It can be interpreted as an s channel discontinuity o
Externí odkaz:
http://arxiv.org/abs/1209.5188
We investigate the effect of high order radiative corrections in unpolarized electron proton elastic scattering and compare with the calculations at lowest order, which are usually applied to experimental data. We show that higher order terms play a
Externí odkaz:
http://arxiv.org/abs/0805.3623
Born cross section and the radiative corrections to its lowest order are considered in the frame work of QED with structureless nucleons including the emission of virtual and real photons. Result is generalized to take into account radiative correcti
Externí odkaz:
http://arxiv.org/abs/0803.0662
Publikováno v:
JETP Lett.87:73-77,2008
Born differential cross sections and the lowest-order radiative correction to them are obtained in the kinematics of large-angle final photons emission in high-energy electron-positron annihilation processes. Taking into account possible emission of
Externí odkaz:
http://arxiv.org/abs/0801.1592
Publikováno v:
Phys.Lett.B664:274-278,2008
In frames of effective Regge action the vertices describing conversion of two reggeized gluons to one two and three ordinary gluons was constructed. The self-consistency: Bose symmetry and gauge invariance properties checks was shown to be fulfilled.
Externí odkaz:
http://arxiv.org/abs/0711.3576
The two photon exchange amplitude is investigated in frame of analytic properties of the virtual Compton scattering amplitude as a function of the invariant mass squared of the intermediate hadronic state. A sum rule is built, based on arguments from
Externí odkaz:
http://arxiv.org/abs/0711.3192
Publikováno v:
Phys.Rev.C78:015205,2008
Charge asymmetry in electron (positron) scattering arises from the interference of the Born amplitude and the box-type amplitude corresponding to two virtual photons exchange. It can be extracted from electron proton and positron proton scattering ex
Externí odkaz:
http://arxiv.org/abs/0710.3699
Publikováno v:
Phys.Lett.B659:197-200,2008
We look for asymmetries in the angular distributions of events from recent data on $e^+ +e^-\to p +\bar p +\gamma$ from BABAR collaboration. From first principles, as the C-invariance of the electromagnetic interaction and the crossing symmetry, the
Externí odkaz:
http://arxiv.org/abs/0710.0454
Estimation of multiplicity of muons and pions production at high energy proton-nuclei collisions is given. Both QED and QCD contributions are considered for peripheral kinematics of muon pair and $\sigma$-meson production, keeping in mind it's final
Externí odkaz:
http://arxiv.org/abs/0706.4404
Publikováno v:
Phys.Lett.B655:196-199,2007
The up-down asymmetry in transversally polarized electron proton scattering is induced by the interference between one and two photon exchange amplitudes. Inelastic intermediate hadronic states (different from one-proton state) of the two photon exch
Externí odkaz:
http://arxiv.org/abs/0706.2474