Microscopic optical model potential based on a Dirac Brueckner Hartree Fock approach and the relevant uncertainty analysis

A relativistic microscopic optical model potential, named CTOM, for nucleon-nucleus scattering is investigated in the framework of Dirac-Brueckner-Hartree-Fock approach. The microscopic feature of CTOM is guaranteed through rigorously adopting the isospin dependent DBHF calculation within the subtra...

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Main Authors: Xu, Ruirui, Ma, Zhongyu, Muether, Herbert, van Dalen, E.N.E., Liu, Tinjin, Zhang, Yue, Zhang, Zhi, Tian, Yuan
Format: Conference Proceeding
Language:English
Subjects:
Covariance
Hartree approximation
Mathematical models
Predictions
Scattering
Uncertainty analysis
Vector potentials
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Liu, Tinjin
Zhang, Yue
Zhang, Zhi
Tian, Yuan
description A relativistic microscopic optical model potential, named CTOM, for nucleon-nucleus scattering is investigated in the framework of Dirac-Brueckner-Hartree-Fock approach. The microscopic feature of CTOM is guaranteed through rigorously adopting the isospin dependent DBHF calculation within the subtracted T matrix scheme. In order to verify its prediction power, a global study n, p+ A scattering are carried out. The predicted scattering observables coincide with experimental data within a good accuracy over a broad range of targets and a large region of energies only with two free items, namely the free-range factor t in the applied improved local density approximation and minor adjustments of the scalar and vector potentials in the low-density region. In addition, to estimate the uncertainty of the theoretical results, the deterministic simple least square approach is preliminarily employed to derive the covariance of predicted angular distributions, which is also briefly contained in this paper.
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subjects Covariance
Hartree approximation
Mathematical models
Predictions
Scattering
Uncertainty analysis
Vector potentials
title Microscopic optical model potential based on a Dirac Brueckner Hartree Fock approach and the relevant uncertainty analysis
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