Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Baker, R. B."'
Based on the Watson expansion of the multiple scattering series, we employ a nonlocal translationally invariant nuclear density derived within the symmetry-adapted no-core shell model (SA-NCSM) framework from a chiral next-to-next-to-leading order (N
Externí odkaz:
http://arxiv.org/abs/2404.03106
Using the \textit{ab initio} symmetry-adapted no-core shell model, we compute sum rules and response functions for light to medium-mass nuclei, starting from interactions that are derived in the chiral effective field theory. We investigate electroma
Externí odkaz:
http://arxiv.org/abs/2312.09782
Autor:
Burrows, M., Launey, K. D., Mercenne, A., Baker, R. B., Sargsyan, G. H., Dytrych, T., Langr, D.
We combine the \textit{ab initio} symmetry-adapted no-core shell model (SA-NCSM) with the single-particle Green's function approach to construct optical potentials rooted in first principles. Specifically, we show that total cross sections and phase
Externí odkaz:
http://arxiv.org/abs/2307.00202
Nucleon-nucleon ($NN$) interactions based on chiral effective theories are commonly used in ab initio calculations of light nuclei. Here we present a study based on three different NN interactions (up to next-to-next-to-leading order) for which struc
Externí odkaz:
http://arxiv.org/abs/2306.12597
The effective interaction between a nucleon and a nucleus is one of the most important ingredients for reaction theories. Theoretical formulations were introduced early by Feshbach and Watson, and efforts of deriving and computing those `optical pote
Externí odkaz:
http://arxiv.org/abs/2301.04293
Autor:
Hebborn, C., Nunes, F. M., Potel, G., Dickhoff, W. H., Holt, J. W., Atkinson, M. C., Baker, R. B., Barbieri, C., Blanchon, G., Burrows, M., Capote, R., Danielewicz, P., Dupuis, M., Elster, Ch., Escher, J. E., Hlophe, L., Idini, A., Jayatissa, H., Kay, B. P., Kravvaris, K., Manfredi, J. J., Mercenne, A., Morillon, B., Perdikakis, G., Pruitt, C. D., Sargsyan, G. H., Thompson, I. J., Vorabbi, M., Whitehead, T. R.
We review recent progress and motivate the need for further developments in nuclear optical potentials that are widely used in the theoretical analysis of nucleon elastic scattering and reaction cross sections. In regions of the nuclear chart away fr
Externí odkaz:
http://arxiv.org/abs/2210.07293
Background: Effective interactions for nucleon-nucleus ($NA$) elastic scattering from first principles require the use of the same nucleon-nucleon ($NN$) interaction in the structure and reaction calculations, and a consistent treatment of the releva
Externí odkaz:
http://arxiv.org/abs/2112.02442
Based on the spectator expansion of the multiple scattering series we employ a chiral next-to-next-to-leading order (NNLO) nucleon-nucleon interaction on the same footing in the structure as well as in the reaction calculation to obtain an in leading
Externí odkaz:
http://arxiv.org/abs/2105.04474
Publikováno v:
Phys. Rev. C 103, 054314 (2021)
Background: Effective interactions for elastic nucleon-nucleus scattering from first principles require the use of the same nucleon-nucleon interaction in the structure and reaction calculations, as well as a consistent treatment of the relevant oper
Externí odkaz:
http://arxiv.org/abs/2102.01025
Publikováno v:
Phys. Rev. C 103, 044305 (2021)
We examine nucleon-nucleon realistic interactions, based on their SU(3) decomposition to SU(3)-symmetric components. We find that many of these interaction components are negligible, which, in turn, allows us to identify a subset of physically releva
Externí odkaz:
http://arxiv.org/abs/2009.09001