Zobrazeno 1 - 10
of 200
pro vyhledávání: '"A. P. Rekalo"'
We generalize the recoil polarization method for the determination of the proton form factor to the case of the disintegration of vector polarized deuterons by longitudinally polarized electrons, $\vec d(\vec e, e'n)p$. We suggest to measure for this
Externí odkaz:
http://arxiv.org/abs/nucl-th/0309065
Publikováno v:
Phys.Rev.C83:025202,2011
A general formalism is developed to calculate the cross section and the polarization observables for the reaction $\bar N+N\to \pi +\ell^++\ell^-$. The matrix element and the observables are expressed in terms of six scalar amplitudes (complex functi
Externí odkaz:
http://arxiv.org/abs/1011.4013
This note collects formulas relative to the energy dependence of the cross sections for open charm and $J/\psi$ production for $NN$-collisions at threshold. It is a basis for the best input to MonteCarlo calculations, for associative charm particle p
Externí odkaz:
http://arxiv.org/abs/0810.4250
We briefly summarize the status with electromagnetic nucleon form factors, and give in this framework, arguments to study the angular dependence of the differential cross section and single-spin polarization phenomena (polarized target or polarized b
Externí odkaz:
http://arxiv.org/abs/0810.4245
Hadron electromagnetic form factors contain dynamical information on the intrinsic structure of the hadrons. The pioneering work developed at the Kharkov Physical-Technical Institute in the 60's on the relation between the polarized cross section and
Externí odkaz:
http://arxiv.org/abs/hep-ph/0610309
Publikováno v:
Phys.Atom.Nucl. 69 (2006) 909-914
We derive, in model independent way, the spin structure of the matrix element for the reaction of associative $\Theta^+$ pentaquark production, $\pi^{\pm}+D\to \Theta^+ +\Sigma^{\pm}, $ in the threshold region and in collinear kinematics. The express
Externí odkaz:
http://arxiv.org/abs/hep-ph/0504039
Publikováno v:
Annals Phys. 319 (2005) 150-216
A general formalism for the calculation of the differential cross section and polarization observables, for the process of deuteron electrodisintegration, is developed in the framework of relativistic impulse approximation. A detailed analysis of the
Externí odkaz:
http://arxiv.org/abs/hep-ph/0412112
Publikováno v:
Eur.Phys.J. A21 (2004) 469-478
The spin structure of the matrix element for the reactions $\gamma+ N\to Y_c +{D}^*$, where $Y_c=\Lambda_c^+(2285)$, $\Sigma_c(2455)$ are charmed baryons with spin 1/2, and $D^*(2010)$ is the vector charmed meson, can be parametrized, in collinear re
Externí odkaz:
http://arxiv.org/abs/hep-ph/0401156
Publikováno v:
Phys.Rev. D69 (2004) 094015
We analyze polarization effects in associative photoproduction of pseudoscalar ($\bar{D}$) charmed mesons in exclusive processes $\gamma+ N\to Y_c +\bar{D}$, $Y_c=\Lambda_c^+$, $\Sigma_c$. Circularly polarized photons induce nonzero polarization of t
Externí odkaz:
http://arxiv.org/abs/hep-ph/0310172
QCD gives definite predictions for hadron electromagnetic form factors in space-like and time-like momentum transfer regions, such as the quark counting rules, the hypothesis of hadron helicity conservation, and the relations between nucleon and deut
Externí odkaz:
http://arxiv.org/abs/nucl-th/0307065