Zobrazeno 1 - 10
of 988
pro vyhledávání: '"Descouvemont, P."'
We study the $^6$He Borromean nucleus in coordinate representation within a three-body model with two-body potentials derived from cluster effective field theory (EFT). These potentials are originally developed in momentum space and Fourier transform
Externí odkaz:
http://arxiv.org/abs/2409.03074
Autor:
Chien, Le Hoang, Descouvemont, Pierre
We present a semi-microscopic study of the 16C(d,p)17C transfer reaction. The 17C overlap integrals and spectroscopic factors are obtained from a microscopic cluster model, involving many 16C+n configurations. This microscopic model provides a fair d
Externí odkaz:
http://arxiv.org/abs/2309.08378
Autor:
Shubhchintak, Descouvemont, P.
Publikováno v:
J. Nucl. Phys. Mat. Sci. Rad. A. Vol. 9, No. 2 (2022), pp.197-201
Background: Nuclear transfer reactions are a useful tool to study the structure of a nucleus. For reactions involving weekly bound nuclei, breakup effects can play significant role and theoretical calculations can be computational expensive in such c
Externí odkaz:
http://arxiv.org/abs/2210.08820
Autor:
Shubhchintak, Descouvemont, P.
We analyze the $^{16}{\rm C}+p$ and $^{16}{\rm C}+d$ reactions within the four- and five-body Continuum Discretized Coupled Channel (CDCC) method. The $^{16}$C nucleus is described by a $^{14}{\rm C}+n+n$ configuration in hyperspherical coordinates.
Externí odkaz:
http://arxiv.org/abs/2201.11012
Autor:
Dohet-Eraly, J., Descouvemont, P.
Publikováno v:
Phys. Rev. C 103, 034619 (2021)
We present a scattering model for nuclei with similar masses. In this three-body model, the projectile has a core+valence structure, whereas the target is identical to the core nucleus. The three-body wave functions must be symmetrized for the exchan
Externí odkaz:
http://arxiv.org/abs/2101.06942
Autor:
Descouvemont, P.
We discuss resonance properties in three-body systems, with examples on $^{12}{\rm C}$ and $^{24}{\rm Mg}$. We use a microscopic cluster model, where the generator coordinate is defined in the hyperspherical formalism. The $^{12}{\rm C}$ nucleus is d
Externí odkaz:
http://arxiv.org/abs/2101.00955
Autor:
Shubhchintak, Descouvemont, P.
We test the sensitivity of transfer reactions to the bound state wave functions within a distorted wave Born approximation formalism. Using supersymmetric transformations, we remove the Pauli-forbidden states from the two-body potentials and generate
Externí odkaz:
http://arxiv.org/abs/2010.07617
Given the established 2 alpha structure of 8Be, a realistic model of 4 interacting alpha clusters must be used to obtain a 8Be+8Be interaction potential. Such a four-body problem poses a challenge for the determination of the 8Be+8Be optical potentia
Externí odkaz:
http://arxiv.org/abs/2008.01282
Autor:
Descouvemont, Pierre
The 11Li + p and 11Li + d reactions are investigated in the Continuum Discretized Coupled Channel (CDCC) method with a three-body description (9Li + n + n) of 11Li. I first discuss the properties of 11Li, and focus on E1 transition probabilities to t
Externí odkaz:
http://arxiv.org/abs/2006.01548
Autor:
Lei, Jin, Descouvemont, Pierre
Publikováno v:
Phys. Rev. C 102, 014608 (2020)
The Lagrange-mesh $R$-matrix method is generalized to inhomogeneous equations. This method is numerically stable and efficient. It can be directly used for transfer reactions with the formalism discussed by Ascuitto and Glendenning [Phys. Rev. 181,13
Externí odkaz:
http://arxiv.org/abs/2004.13588