Zobrazeno 1 - 10
of 52
pro vyhledávání: '"I.G. Aznauryan"'
Autor:
I.G. Aznauryan
Publikováno v:
Physics Letters B, Vol 316, Iss 2, Pp 391-396 (1993)
The specific features of the Q2-behaviour of the nucleon electromagnetic and axial-vector form factors and of the magnetic form factor of the Δ → Nγ transition at Q2 < 4 GeV2 which are, generally speaking, characteristic of perturbative QCD, are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7373b0bb8d0eb44a1dbe9186ac716e9
https://doi.org/10.1016/0370-2693(93)90343-g
https://doi.org/10.1016/0370-2693(93)90343-g
Autor:
K. A. Oganessyan, I.G. Aznauryan
Publikováno v:
Physics Letters B. 249:309-313
Within a relativistic quark model predictions for form factors of ω→πγ, a1→πγ, a2→πγ, b1→πγ transitions at 0 ⩽|K2|⩽ 3 GeV2 are made, which turned out to be significantly different from each other and from VDM predictions. The con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8971722cfcd2ee899047f37d1343da4
https://doi.org/10.1016/0370-2693(90)91261-9
https://doi.org/10.1016/0370-2693(90)91261-9
Autor:
I.G. Aznauryan
In the framework of a relativistic quark model constructed in an infinite momentum frame, corrections of the order of $v^{2}/c^{2}$ are obtained in the formulas which express amplitudes of the transitions $\psi(\psi') \to \eta_{_{c}}(\eta'_{_{c}})\ga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7b529d67538a1c4386718d7118412ee
Publikováno v:
Physics Letters B. 90:151-154
The asymptotic relations for the nucleon form factors are obtained in the quark-gluon model. Change of signs of the form factors, violation of the scaling law and vanishing of the isoscalar magnetic form factor are predicted as Q 2 → ∞. These pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0777737bd18f255d4e6236e1d332e0d2
https://doi.org/10.1016/0370-2693(80)90072-6
https://doi.org/10.1016/0370-2693(80)90072-6
Publikováno v:
Physics Letters B. 126:271-274
The close connection between the spin effects in hadron-hadron collisions and the quark wave functions in hadrons is demonstrated. In the framework of the additive quark model it is shown that the correct approach to the construction of the hadron wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc49a0eca5e688550601b7c322fb8b7d
https://doi.org/10.1016/0370-2693(83)90605-6
https://doi.org/10.1016/0370-2693(83)90605-6
Publikováno v:
Physics Letters B. 112:393-396
The relativistic-invariant model of nucleons composed of relativistic quarks is formulated in the infinite momentum frame. A set of experimental data on magnetic moments, electromagnetic radii and the ratio G A / G V for nucleons are described well i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b7f0d2d89eeacc4715b13a34a9ea34a
https://doi.org/10.1016/0370-2693(82)91076-0
https://doi.org/10.1016/0370-2693(82)91076-0
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Physics Letters B. 214:637-639
In the framework of the potential approach it is shown that relativistic effects connected with the relative motion of quarks in quarkonia lead to a strong decrease in the values of the ratios Br(ψ→aγ)/Br(ψ→μ + μ − ) and B Br(ϒ→aγ)/Br(
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9113620c7840ac14d99c98705ce1f9f4
https://doi.org/10.1016/0370-2693(88)90134-7
https://doi.org/10.1016/0370-2693(88)90134-7
Autor:
A.N. Zaslavsky, I.G. Aznauryan
Publikováno v:
Physics Letters B. 39:226-228
It is shown that there is a discrepancy in the isovector photoproduction amplitude between the predictions of dispersion relations and the experimental data. This discrepancy cannot be removed by the introduction of an isotensor electromagnetic curre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c59bcbd647e558a3a5f4a9a37e22b922
https://doi.org/10.1016/0370-2693(72)90782-4
https://doi.org/10.1016/0370-2693(72)90782-4
Autor:
L.D. Soloviev, I.G. Aznauryan
Publikováno v:
Physics Letters B. 28:597-599
The pion-nucleon scattering amplitude B(+) (v, t) at energies v ⪆ 5 GeV and momentum transfer |t| ⪅ 0.3 (GeV/c2) is obtained using dispersion sum rules and the Regge pole model. The rotation of polarization in π±p-scattering at high energies is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51a55a8bbd8b5e9ff593c0fc422bb0b9
https://doi.org/10.1016/0370-2693(69)90196-8
https://doi.org/10.1016/0370-2693(69)90196-8