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The second order DWBA implementation of two-particle transfer direct reactions which includes simultaneous and successive transfer, properly corrected by non-orthogonality effects is tested with the help of controlled nuclear structure and…

Nuclear Theory · Physics 2015-06-15 G. Potel , A. Idini , F. Barranco , E. Vigezzi , R. A. Broglia

In this paper, we employ the Variable Phase Approach (VPA) to obtain the scattering phase shifts \( \delta(E, r) \), amplitude function \( A(r) \), and radial wavefunction \( u(r) \) for various channels involved in the astrophysical…

Nuclear Theory · Physics 2025-06-26 Anil Khachi

Adiabatic distorted-wave approximation (ADWA) study of three-body $(d,p)$ transfer reactions [G.W. Bailey, N.K. Timofeyuk, and J.A. Tostevin, Phys. Rev. Lett. 117, 162502 (2016)] reported strong sensitivity of cross sections to the…

Nuclear Theory · Physics 2018-09-26 A. Deltuva

Nucleosynthesis processes involve reactions on several thousand nuclei, both close to and far off stability. The preparation of reaction rates to be used in astrophysical investigations requires experimental and theoretical input. In this…

Nuclear Theory · Physics 2009-11-13 T. Rauscher

Charge-exchange reactions are versatile probes for nuclear structure. In particular, when populating isobaric analog states, these reactions are used to study isovector nuclear densities and neutron skins. The quality of the information…

Nuclear Theory · Physics 2024-09-17 A. J. Smith , C. Hebborn , F. M. Nunes , R. G. T. Zegers

Nonelastic breakup (NEB) reactions induced by the halo nucleus $^{11}$Be on $^{64}$Zn at 28.7 MeV are investigated using the Ichimura-Austern-Vincent (IAV) model combined with the Continuum Discretized Coupled Channels (CDCC) method. NEB…

Nuclear Theory · Physics 2025-03-03 Jin Lei

In this paper we apply a well-tested approximation of electron Coulomb distortion effects to the exclusive reaction (e,e'p) in the quasielastic region. We compare the approximate treatment of Coulomb distortion effects to the exact…

Nuclear Theory · Physics 2008-11-26 K. S. Kim , L. E. Wright

We summarize recent ab initio studies of low-energy electroweak reactions of astrophysical interest, relevant for both big bang nucleosynthesis and solar neutrino production. The calculational methods include direct integration for np…

Nuclear Theory · Physics 2008-11-26 L. E. Marcucci , Kenneth M. Nollett , R. Schiavilla , R. B. Wiringa

We formulate a microscopic theory to calculate cross section of the radiative neutron capture reaction on neutron-rich nuclei using the continuum random-phase approximation (cRPA) to the time-dependent density functional theory (TDDFT).…

Nuclear Theory · Physics 2023-06-28 Teruyuki Saito , Masayuki Matsuo

The nonperturbative nature of nucleon-nucleon interactions as a function of a momentum cutoff is studied using Weinberg eigenvalues as a diagnostic. This investigation extends an earlier study of the perturbative convergence of the Born…

Nuclear Theory · Physics 2009-11-11 S. K. Bogner , R. J. Furnstahl , S. Ramanan , A. Schwenk

Densities and transition densities are computed in an equilateral triangular alpha-cluster model for $^{12}$C, in which each $\alpha$ particle is taken as a gaussian density distribution. The ground-state, the symmetric vibration (Hoyle…

Nuclear Theory · Physics 2020-01-23 A. Vitturi , J. Casal , L. Fortunato , E. G. Lanza

As a model of a neutron halo nucleus we consider a neutron bound to an inert core by a zero range force. We study the breakup of this simple nucleus in the Coulomb field of a target nucleus. In the post-form DWBA (or, in our simple model…

Nuclear Theory · Physics 2007-05-23 Gerhard Baur , Kai Hencken , Dirk Trautmann

We solved the nonlocal scattering and bound state equations using the Perey-Buck type interaction, and compared to local equivalent calculations. Using the distorted wave Born approximation we construct the T-matrix for (p,d) transfer on…

Nuclear Theory · Physics 2016-04-04 Luke J. Titus

The description of deuteron-induced inclusive reactions has been an important subject in direct nuclear reaction studies and nuclear data science. For proton-induced inclusive processes, the semiclassical distorted wave model (SCDW) is one…

Nuclear Theory · Physics 2023-07-04 Hibiki Nakada , Kazuki Yoshida , Kazuyuki Ogata

A potential model is applied for the analysis of the astrophysical direct nuclear capture process $^{16}$O(p,$\gamma)^{17}$F. The phase-equivalent potentials of the Woods-Saxon form for the p$-^{16}$O interaction are examined which…

Nuclear Theory · Physics 2024-09-04 E. M. Tursunov , S. A. Turakulov

Direct evidence of the $\alpha$-cluster manifestation in bound states has not been obtained yet, although a number of experimental studies were carried out to extract the information of the clustering. In particular in conventional analyses…

The Continuum-Discretized Coupled-Channels (CDCC) has been successfully employed to describe elastic and breakup of nuclear reactions induced by weakly bound projectiles. In this contribution, we review some other, less widespread…

Nuclear Theory · Physics 2021-02-03 A. M. Moro , J. Casal , Jin Lei , M. Gómez-Ramos

In a nonrelativistic quantum theory the longitudinal and transversal components of the internal momentum in the deuteron wave function (DWF) are bound together as they have to form the well known superposition of the S- and D-waves. In a…

Nuclear Theory · Physics 2007-05-23 L. S. Azhgirey , N. P. Yudin

We report a significant improvement of an approximate method of including electron Coulomb distortion in electron induced reactions at momentum transfers greater than the inverse of the size of the target nucleus. In particular, we have…

Nuclear Theory · Physics 2009-10-31 K. S. Kim , L. E. Wright

A simple and model-independent method is described to derive neutron single-particle spectroscopic factors of bound s-wave states in $^{A+1}Z = ^{A}Z \otimes n$ nuclei from neutron scattering lengths. Spectroscopic factors for the nuclei…

Nuclear Theory · Physics 2016-09-08 P. Mohr , H. Herndl , H. Oberhummer