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The effect of core excitation in the elastic scattering and breakup of a two-body halo nucleus on a stable target nucleus is studied. The structure of the weakly-bound projectile is described in the weak-coupling limit, assuming a…

Nuclear Theory · Physics 2014-06-30 R. de Diego , J. M. Arias , J. A. Lay , A. M. Moro

In this work, we reexamine the extension of the CDCC formalism to include target excitation and apply it to a variety of reactions to study the effect of breakup on inelastic cross sections. We use a transformed oscillator basis to…

Nuclear Theory · Physics 2017-03-22 M. Gomez-Ramos , A. M. Moro

An interesting physical process has been unveiled: dynamical core excitation during a breakup reaction of loosely bound $core+N$ systems. These reactions are typically used to extract spectroscopic information and/or astrophysical…

Nuclear Theory · Physics 2009-11-11 N. C. Summers , F. M. Nunes , I. J. Thompson

The continuum-discretized coupled-channels (CDCC) method is used to study the breakup of weakly-bound nuclei at intermediate energies collisions. For large impact parameters, the Eikonal CDCC (E-CDCC) method was applied. The effects of…

Nuclear Theory · Physics 2014-11-20 Kazuyuki Ogata , C. A. Bertulani

We use a three-body Continuum Discretized Coupled Channel (CDCC) model to investigate Coulomb and nuclear effects in breakup and reaction cross sections. The breakup of the projectile is simulated by a finite number of square integrable…

Nuclear Theory · Physics 2017-03-22 Pierre Descouvemont , L. Felipe Canto , Mahir S. Hussein

The eXtended Continuum Discretized Coupled Channel (XCDCC) method is developed to treat reactions where core degrees of freedom play a role. The projectile is treated as a multi-configuration coupled channels system generated from a valence…

Nuclear Theory · Physics 2009-11-11 N. C. Summers , F. M. Nunes , I. J. Thompson

Previous studies of $(d,p)$ reactions in three-body (proton, neutron, nuclear core) systems revealed a nontrivial effect of the core excitation: the transfer cross section cannot be factorized into the spectroscopic factor and the…

Nuclear Theory · Physics 2019-03-27 A. Deltuva

Development of the method of CDCC (Continuum-Discretized Coupled-Channels) from the level of three-body CDCC to that of four-body CDCC is reviewed. Introduction of the pseudo-state method based on the Gaussian expansion method for…

Nuclear Theory · Physics 2015-06-26 M. Kamimura , T. Matsumoto , E. Hiyama , K. Ogata , Y. Iseri , M. Yahiro

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…

Nuclear Theory · Physics 2022-02-16 Shubhchintak , P. Descouvemont

The continuum discretized coupled channels (CDCC) method is compared to the exact solution of the three-body Faddeev equations in momentum space. We present results for: i) elastic and breakup observables of d-12C at E_d=56 MeV, ii) elastic…

Nuclear Theory · Physics 2008-11-26 A. Deltuva , A. M. Moro , E. Cravo , F. M. Nunes , A. C. Fonseca

Halo nuclei projectiles can undergo into a fragmentation process when scattered by a nucleus target. The corresponding core from exotic nuclei is usually observed while the others fragments of the reaction are not. We use the recently…

Nuclear Theory · Physics 2018-08-22 L. A. Souza , E. V. Chimanski , T. Frederico , B. V. Carlson , M. S. Hussein

The effect of core excitations in transfer reactions of the form A(d, p)B has been found to affect significantly the calculated cross sections and to depend strongly and non-linearly on the incident deuteron energy in Faddeev/AGS…

Nuclear Theory · Physics 2017-04-26 M. Gomez-Ramos , A. M. Moro

Breakup reactions are one of the main tools for the study of exotic nuclei, and in particular of their continuum. In order to get valuable information from measurements, a precise reaction model coupled to a fair description of the…

Nuclear Theory · Physics 2015-05-20 D. Baye , P. Capel

The influence on fusion of coupling to the breakup process is investigated for reactions where at least one of the colliding nuclei has a sufficiently low binding energy for breakup to become an important process. Elastic scattering,…

Nuclear Theory · Physics 2008-11-26 C. Beck , N. Keeley , A. Diaz-Torres

We investigate the low-energy $^9$Be elastic scattering on two different targets (heavy, light) within a four-body framework using the Continuum-Discretized Coupled-Channels (CDCC) method. The $^9$Be projectile is described in a $\alpha +…

Nuclear Theory · Physics 2016-04-26 J. Casal , M. Rodríguez-Gallardo , J. M. Arias

We propose a fully quantum-mechanical method of treating four-body nuclear breakup processes in scattering of a projectile consisting of three constituents, by extending the continuum-discretized coupled-channels method. The three-body…

Nuclear Theory · Physics 2016-09-08 T. Matsumoto , E. Hiyama , K. Ogata , Y. Iseri , M. Kamimura , S. Chiba , M. Yahiro

We present in detail a theoretical model for fragmentation reactions of three--body halo nuclei. The different reaction mechanisms corresponding to the different processes are described and discussed. Coulomb and nuclear interactions are…

Nuclear Theory · Physics 2009-11-07 E. Garrido , D. V. Fedorov , A. S. Jensen

We extend our previous calculation of the breakup of 11Be using Halo Effective Field Theory and the Dynamical Eikonal Approximation to include an effective 10Be-n-target force. The force is constructed to account for the virtual excitation…

Nuclear Theory · Physics 2021-12-28 P. Capel , D. R. Phillips , H. -W. Hammer

A comparison between full few-body Faddeev/Alt-Grassberger-Sandhas (Faddeev/AGS) and continuum-discretized coupled channels (CDCC) calculations is made for the resonant and nonresonant breakup of $^{11}$Be on proton target at 63.7 MeV/u…

Nuclear Theory · Physics 2010-04-06 E. Cravo , R. Crespo , A. M. Moro , A. Deltuva

We present a new reaction model, which permits the description of reactions where both colliding nuclei present a low threshold to breakup. The method corresponds to a four-body extension of the Continuum Discretized Coupled Channel (CDCC)…

Nuclear Theory · Physics 2017-06-28 Pierre Descouvemont
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