Unified ab initio approaches to nuclear structure and reactions

Abstract : The description of nuclei starting from the constituent nucleons and the realistic interactions among them has been a long-standing goal in nuclear physics. In addition to the complex nature of the nuclear forces, with two-, three- and possibly higher many-nucleon components, one faces the quantum-mechanical many-nucleon problem governed by an interplay between bound and continuum states. In recent years, significant progress has been made in ab initio nuclear structure and reaction calculations based on input from QCD-employing Hamiltonians constructed within chiral effective field theory. After a brief overview of the field, we focus on ab initio many-body approaches - built upon the No-Core Shell Model - that are capable of simultaneously describing both bound and scattering nuclear states, and present results for resonances in light nuclei, reactions important for astrophysics and fusion research. In particular, we review recent calculations of resonances in the $^6$He halo nucleus, of five- and six-nucleon scattering, and an investigation of the role of chiral three-nucleon interactions in the structure of $^9$Be. Further, we discuss applications to the $^7$Be$(p,\gamma)^8$B radiative capture. Finally, we highlight our efforts to describe transfer reactions including the $^3$H$(d,n)^4$He fusion.
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Article dans une revue
Physica Scripta, IOP Publishing, 2016, 91, pp.053002 〈10.1088/0031-8949/91/5/053002〉
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http://hal.in2p3.fr/in2p3-01335984
Contributeur : Sophie Heurteau <>
Soumis le : mercredi 22 juin 2016 - 15:15:38
Dernière modification le : jeudi 11 janvier 2018 - 06:12:41

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P. Navratil, S. Quaglioni, G. Hupin, C. Romero-Redondo, A. Calci. Unified ab initio approaches to nuclear structure and reactions. Physica Scripta, IOP Publishing, 2016, 91, pp.053002 〈10.1088/0031-8949/91/5/053002〉. 〈in2p3-01335984〉

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