Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Kaloshin, A. E."'
Autor:
Kaloshin, A. E., Voronin, D. M.
We construct a spectral representation of neutrino propagator in matter moving with constant velocity, or in constant homogenious magnetic field. In both cases there exists definite 4-axis $z$ of complete polarization, such that corresponding spin pr
Externí odkaz:
http://arxiv.org/abs/2110.07132
We discuss diagonalization of propagator for mixing fermions system based on the eigenvalue problem. The similarity transformation converting matrix propagator into diagonal form is obtained. The suggested diagonalization has simple algebraic propert
Externí odkaz:
http://arxiv.org/abs/2109.06470
Autor:
Kaloshin, A. E., Voronin, D. M.
We construct a spectral representation of neutrino propagator in moving matter or in external magnetic field. In both cases there exists fixed four-dimensional axis of polarization, such that the corresponding spin projectors commute with propagator.
Externí odkaz:
http://arxiv.org/abs/1808.05514
Autor:
Voronin, D. M., Kaloshin, A. E.
A spectral representation for the neutrino propagator in a moving matter with constant density is constructed. It is found that in a matter there exists a 4-dimensional axis of complete polarization, all poles of the propagator are classified accordi
Externí odkaz:
http://arxiv.org/abs/1707.07894
Autor:
Kaloshin, A. E., Lomov, V. P.
We show that calculation of a final fermion polarization (for a pure initial state) is equivalent to the problem of looking for complete polarization axis of bispinor. This gives the method for calculation of polarization applicable both for final an
Externí odkaz:
http://arxiv.org/abs/1603.03998
Autor:
Kaloshin, A. E., Lomov, V. P.
Publikováno v:
Int.J.Mod.Phys. A31 (2016) 1650031
We develop the spectral representation of propagator for $n$ mixing fermion fields in the case of $\mathsf{P}$-parity violation. The approach based on the eigenvalue problem for inverse matrix propagator makes possible to build the system of orthogon
Externí odkaz:
http://arxiv.org/abs/1501.06337
Publikováno v:
Mod. Phys. Lett. A, Vol. 28, No. 34 (2013) 1350156
We develop a variant of $K$-matrix, which includes the effect of opposite parity fermions (OPF) mixing, and apply it for description of $\pi N$ partial waves $S_{11}$ and $P_{11}$. OPF-mixing leads to appearance of negative energy poles in $K$-matrix
Externí odkaz:
http://arxiv.org/abs/1306.6171
Autor:
Kaloshin, A. E., Lomov, V. P.
We suggest the description of the dressed fermion propagator with parity non-conservation in the form with separated positive and negative energy poles. We found general form of the $\gamma$-matrix off-shell projectors and corresponding resonance fac
Externí odkaz:
http://arxiv.org/abs/1111.1284
Autor:
Kaloshin, A. E., Lomov, V. P.
Publikováno v:
Particles and Nuclei, Letters, Vol. 8, No 6 (2011)
We suggest simple method to solve wave equation for Rarita--Schwinger field without additional constraints. This method based on use of off-shell projection operators allows to diagonalize spin-1/2 sector of the field.
Comment: 6 pages
Comment: 6 pages
Externí odkaz:
http://arxiv.org/abs/1107.4445
Publikováno v:
Int.J.Mod.Phys.A26:2307-2326,2011
We consider a loop mixing of two fermion fields of opposite parities whereas the parity is conserved in a Lagrangian. Such kind of mixing is specific for fermions and has no analogy in boson case. Possible applications of this effect may be related w
Externí odkaz:
http://arxiv.org/abs/1009.2845