Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Rawitscher, G."'
Autor:
Jaghoub, M. I., Rawitscher, G. H.
We demonstrate that the presence of a velocity-dependent term in the phenomenological optical potential simulates a source of nonlocality. This is achieved by showing that, in the interior of the nucleus, the nonlocal wave functions are different fro
Externí odkaz:
http://arxiv.org/abs/1112.1172
Publikováno v:
Phys. Rev. C 84, 034618 (2011)
In this work we fit $neutron$ - $^{12}C$ elastic scattering angular distributions in the energy range 12 to 20 MeV, by adding a velocity dependent term to the optical potential. This term introduces a wave function gradient, whose coefficient is real
Externí odkaz:
http://arxiv.org/abs/1108.5441
Autor:
Rawitscher, G. H., Koltracht, I.
The method is an extension to negative energies of a spectral integral equation method to solve the Schroedinger equation, developed previously for scattering applications. One important innovation is a re-scaling procedure in order to compensate for
Externí odkaz:
http://arxiv.org/abs/physics/0606030
Autor:
Gloeckle, W., Rawitscher, G.
Faddeev equations in configuration space and integral form for three-atom scattering processes are formulated allowing for additive and nonadditive forces. The explicit partial wave decomposition is displayed. This formulation appears to be a valuabl
Externí odkaz:
http://arxiv.org/abs/physics/0512010
This paper is being withdrawn by the authors in order to correct some errors and also to introduce improved theoretical techniques.
Comment: 10 pages, one figure, two tables
Comment: 10 pages, one figure, two tables
Externí odkaz:
http://arxiv.org/abs/nucl-th/0510054
Autor:
Rawitscher, G. H., Koltracht, I.
The solution of the Lippman-Schwinger (L-S) integral equation is equivalent to the the solution of the Schroedinger equation. A new numerical algorithm for solving the L-S equation is described in simple terms, and its high accuracy is confirmed for
Externí odkaz:
http://arxiv.org/abs/physics/0203032
Autor:
Rawitscher, G. H., Kang, S. Y., Koltracht, I., Zerrad, E., Zerrad, K., Kim, B. T., Udagawa, T.
In the Hartree-Fock approximation the Pauli exclusion principle leads to a Schroedinger Eq. of an integro-differential form. We describe a new spectral noniterative method (S-IEM), previously developed for solving the Lippman-Schwinger integral equat
Externí odkaz:
http://arxiv.org/abs/physics/0201066
Publikováno v:
Am.J.Phys. 70 (2002) 935-944
Quantum scattering in the presence of a potential valley followed by a barrier is examined for the case of a Morse potential, for which exact analytic solutions to the Schr\UNICODE{0xf6}dinger equation are known in terms of confluent hypergeometric f
Externí odkaz:
http://arxiv.org/abs/nucl-th/0111027
Three different numerical techniques for solving a coupled channel Schroedinger equation are compared. This benchmark equation, which describes the collision between two ultracold atoms, consists of two channels, each containing the same diagonal Len
Externí odkaz:
http://arxiv.org/abs/physics/9909005
A new spectral type method for solving the one dimensional quantum-mechanical Lippmann-Schwinger integral equation in configuration space is described. The radial interval is divided into partitions, not necessarily of equal length. Two independent l
Externí odkaz:
http://arxiv.org/abs/nucl-th/9802022