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of 109
pro vyhledávání: '"Arellano, H. F."'
Autor:
Arellano, H. F., Adriazola, N. A.
We introduce a new method to construct, within inverse-scattering theory, an energy-independent separable potential capable of reproducing exactly both phase shift and absorption over a predefined energy range. The approach relies on the construction
Externí odkaz:
http://arxiv.org/abs/2406.12827
Autor:
Arellano, H. F., Blanchon, G.
Based on a momentum-space in-medium folding model, we disclose the universal separability of the optical potential, revealing its radial and nonlocality features at beam energies in the range 40 - 400 MeV and target mass numbers in the range $40\le A
Externí odkaz:
http://arxiv.org/abs/2405.13301
We present a global nonlocal and dispersive optical model potential for neutron scattering off spherical nuclei with incident energies up to 250 MeV. This optical model is an extension of the non-dispersive Perey-Buck potential. The imaginary compone
Externí odkaz:
http://arxiv.org/abs/2403.05843
Autor:
Blanchon, G., Arellano, H. F.
This work is part of an ongoing effort to build microscopically-driven nonlocal optical potentials easily tracktable in scattering codes. Based on the separable `$JvH$' structure proposed recently \cite{arellano_22}, where the potential can be cast a
Externí odkaz:
http://arxiv.org/abs/2402.15009
Autor:
Arellano, H. F., Blanchon, G.
After nearly sixty years since its introduction, the phenomenological bell-shape Perey-Buck spatial nonlocality in the optical model potential for nucleon-nucleus scattering has remained unaccounted for from a microscopic standpoint. In this article
Externí odkaz:
http://arxiv.org/abs/2206.09461
Autor:
Arellano, H. F., Blanchon, G.
We investigate the role of high momentum components of optical model potentials for nucleon-nucleus scattering and its incidence on their nonlocal structure in coordinate space. The study covers closed-shell nuclei with mass number in the range $4\le
Externí odkaz:
http://arxiv.org/abs/2011.11080
Autor:
Arellano, H. F., Blanchon, G.
We introduce the package SWANLOP to calculate scattering waves and corresponding observables for nucleon elastic collisions off spin-zero nuclei. The code is capable of handling local and nonlocal optical potentials superposed to long-range Coulomb i
Externí odkaz:
http://arxiv.org/abs/2009.12235
Akademický článek
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Autor:
Arellano, H. F., Blanchon, G.
Publikováno v:
Phys. Rev. C 98, 054616 (2018)
We investigate the nonlocal structure of optical model potentials for nucleon-nucleus scattering based on microscopic approaches. To this purpose, \emph{in-medium} folding optical potentials are calculated in momentum space and their corresponding co
Externí odkaz:
http://arxiv.org/abs/1807.00733
Autor:
Arellano, H. F., Blanchon, G.
An exact solution for the scattering wavefunction from a nonlocal potential in the presence of Coulomb interaction is presented. The approach is based on the construction of a Coulomb Green's function in coordinate space whose associated kernel invol
Externí odkaz:
http://arxiv.org/abs/1806.05006