Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Shushpanov, I. A."'
Autor:
Shushpanov, I. A.
Publikováno v:
Nucl.Phys. A749 (2005) 198-201
The antideuteron and antihelium-3 production rates at high-energy heavy ion collisions are calculated in the framework of fusion mechanism when participating particles are moving in the mean field of other fireball constituents. It is shown that coal
Externí odkaz:
http://arxiv.org/abs/nucl-th/0409022
Publikováno v:
Int.J.Mod.Phys. E13 (2004) 1157-1178
The antideuteron and antihelium-3 production rates at high-energy heavy ion collisions are calculated in the framework of fusion mechanism. It is supposed, that anti-p,n,d,^3He participating in the fusion are moving in the mean field of other firebal
Externí odkaz:
http://arxiv.org/abs/nucl-th/0403089
Publikováno v:
Phys.Atom.Nucl. 68 (2005) 326-331; Yad.Fiz. 68 (2005) 351-356
The antideuteron production rate at high-energy heavy ions collisions is calculated basing on the concept of anti-d formation by antinucleons which move in the mean field of the fireball constituents (mainly pions). The explicit formula is presented
Externí odkaz:
http://arxiv.org/abs/hep-ph/0302052
Autor:
Shushpanov, I. A.
The structure functions F_2 and F_1 of real photon at low virtualities are calculated in the framework of chiral perturbation theory (ChPT) in the zero and first order of ChPT. It is assumed that the virtuality of hard projectile photon Q^2 is much l
Externí odkaz:
http://arxiv.org/abs/hep-ph/0201104
Autor:
Agasian, N. O., Shushpanov, I. A.
Publikováno v:
JHEP 0110:006,2001
In the first order of chiral perturbation theory the corrections to $F_{\pi^0}$ and $M_{\pi^0}$ in a magnetic field at finite temperature have been found. It was shown that they are shifted in such a manner that Gell-Mann - Oakes - Renner relation re
Externí odkaz:
http://arxiv.org/abs/hep-ph/0107128
Autor:
Agasian, N. O., Shushpanov, I. A.
Publikováno v:
Phys.Lett. B472 (2000) 143-149
The low-energy QCD theorems are generalized in the presence of a constant magnetic field H. Two-loop approximation for the vacuum energy density in the framework of the chiral perturbation theory was obtained and the quark and gluon condensates were
Externí odkaz:
http://arxiv.org/abs/hep-ph/9911254
Publikováno v:
Phys.Rev. C59 (1999) 2931-2933
The low-energy theorems for QCD are generalized to finite temperature. and chemical potential, including non-zero quark masses.
Comment: 6 pages latex
Comment: 6 pages latex
Externí odkaz:
http://arxiv.org/abs/nucl-th/9901033
Autor:
Shushpanov, I. A., Smilga, A. V.
Publikováno v:
Phys.Rev.D59:054013,1999
We study the structure and perform some explicit calculations for the power ultraviolet divergences and their renormalization in the Chiral Pertubation Theory with lattice regularization in 1 and 2 loops.
Comment: 10 pages, 3 Postscript figures
Comment: 10 pages, 3 Postscript figures
Externí odkaz:
http://arxiv.org/abs/hep-ph/9807237
Autor:
Shushpanov, I. A., Smilga, A. V.
Publikováno v:
Phys.Lett.B402:351-358,1997
We study the dependence of quark condensate $\Sigma$ on an external magnetic field. For weak fields, it rises linearly with the field. Pion mass and residue are also shifted so that the Gell-Mann - Oakes - Renner relation is satisfied. In the strong
Externí odkaz:
http://arxiv.org/abs/hep-ph/9703201
Autor:
Shushpanov, I. A.
Corrections due to gluon condensate to electromagnetic form factors of the transition $\pi+\gamma^* \to A_1$ are calculated by standard QCD sum rules technique. The obtained results are compared to the corresponding light-cone QCD sum rules.
Com
Com
Externí odkaz:
http://arxiv.org/abs/hep-ph/9612289