Zobrazeno 1 - 10
of 18
pro vyhledávání: '"K. A. Oganessyan"'
Publikováno v:
The European Physical Journal C. 5:681-685
We consider the azimuthal asymmetries in semi-inclusive deep inelastic leptoproduction arising due to both perturbative and nonperturbative effects at HERMES energies and show that the $k_T^2/Q^2$ order corrections to $< \cos��>$ and $< \cos2�
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::910f0d030d9aa9d945398d2dbaae6a74
https://doi.org/10.1007/s100529800873
https://doi.org/10.1007/s100529800873
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
We consider the cos(phi) dependence of the longitudinal double-spin asymmetry for charged pion electroproduction in semi-inclusive deep inelastic scattering, emphasizing intrinsic transverse momentum effects. This azimuthal asymmetry allows to measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb6ac8fb711441c1adad3a2b725729b4
http://hdl.handle.net/2318/8102
http://hdl.handle.net/2318/8102
Autor:
K. A. Oganessyan
Publikováno v:
Electromagnetic Interactions in Nuclear and Hadron Physics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20c67462d26042d4638aa8c1ffab5d0b
https://doi.org/10.1142/9789812777218_0057
https://doi.org/10.1142/9789812777218_0057
Publikováno v:
Oganessyan, K A, Mulders, P J G & De Sanctis, E 2002, ' Double-spin cos phi asymmetry in semi-inclusive electroproduction ', Physics Letters B, vol. 532, no. 1-2, pp. 87-92 . https://doi.org/10.1016/S0370-2693(02)01532-0
Physics Letters B, 532(1-2), 87-92. Elsevier
Physics Letters B, 532(1-2), 87-92. Elsevier
We consider the double-spin cos(phi) asymmetry for pion electroproduction in semi-inclusive deep inelastic scattering of longitudinally polarized leptons off longitudinally polarized protons. We estimate the size of the asymmetry in the approximation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb7a4044a306b146894160e54cc3efc0
https://research.vu.nl/en/publications/d1273928-b95b-4e1e-a098-eb8e12973557
https://research.vu.nl/en/publications/d1273928-b95b-4e1e-a098-eb8e12973557
Publikováno v:
Nuclear Physics A, 711, 89C-92C. Elsevier
Oganessyan, K A, Mulders, P J G, De Sanctis, E & Asilyan, L S 2002, ' Kinematical contributions to the transverse asymmetry in semi-inclusive DIS ', Nuclear Physics A, vol. 711, pp. 89C-92C . https://doi.org/10.1016/S0375-9474(02)01200-9
Oganessyan, K A, Mulders, P J G, De Sanctis, E & Asilyan, L S 2002, ' Kinematical contributions to the transverse asymmetry in semi-inclusive DIS ', Nuclear Physics A, vol. 711, pp. 89C-92C . https://doi.org/10.1016/S0375-9474(02)01200-9
We discuss the contributions of the transverse spin component of the target to the double-spin asymmetries in semi-inclusive deep inelastic scattering of longitudinally polarized electrons off longitudinally polarized protons.
Comment: LaTeX, 4
Comment: LaTeX, 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f51ecdfa12c4a66112d9b75f7ee579e
Autor:
K. A. Oganessyan
We discuss the possibilities of testing of perturbative quantum chromodynamics through azimuthal asymmetries in polarized ep in the context of future collider and fixed target facilities, such as Electron Ion Collider and TESLA-N.
Comment: 4 pag
Comment: 4 pag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fcdacdd4eb35b46c7cea8041856b35c
One of the most interesting consequence of non-zero intrinsic transverse momentum of partons in the nucleon is the nontrivial azimuthal dependence of the cross section of hard scattering processes. Many of the observable asymmetries contain unknown f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06d6729f0654a1d676b46a5fa67548e4
Publikováno v:
AIP Conference Proceedings.
We discuss the quark transversity distribution function and a possible way to access it through the measurement of single spin azimuthal asymmetry in semi-inclusive single pion electroproduction on a transversely polarized target.
5 pages, Latex
5 pages, Latex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::328be06cc093728c64dfdc06d239f54e
https://doi.org/10.1063/1.1413165
https://doi.org/10.1063/1.1413165
The azimuthal single target-spin asymmetries for pi^{+} production in semi-inclusive deep inelastic scattering of leptons off longitudinally polarized protons are evaluated using two main approaches available in the literature. It is shown that the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60cb032aa5c813accde3c2c4e3946f4e
http://arxiv.org/abs/hep-ph/0010261
http://arxiv.org/abs/hep-ph/0010261