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The recent measurements of high energy photodisintegration of the $^3He$ nucleus to the $pd$ pair at $90^0$ center of mass demonstrated an energy scaling consistent with the quark counting rule with unprecedentedly large exponent of…

Nuclear Theory · Physics 2017-02-22 Dhiraj Maheswari , Misak M. Sargsian

At low energies, far below Coulumb barrier, fusion nuclear reactions are very sensitive to its shape, which is usually in experiments modified by atomic electrons of targer or both projectile and target particles. This article describes…

Astrophysics · Physics 2009-11-06 E. D. Donets , E. E. Donets , T. Itahashi , N. Kudomi

The inelastic neutral reaction of neutrino on 4He is calculated using two modern nucleon--nucleon potentials. Full final state interaction among the four nucleons is considered, via the Lorentz integral transform (LIT) method. The effective…

Nuclear Theory · Physics 2008-11-26 Doron Gazit , Nir Barnea

The photodisintegration cross sections for the 94Mo({\gamma},n) and 90Zr({\gamma},n) reactions have been experimentally investigated with quasi-monochromatic photon beams at the High Intensity {\gamma}-ray Source (HI{\gamma}S) facility of…

Nuclear Experiment · Physics 2019-02-20 A. Banu , E. G. Meekins , J. A. Silano , H. J. Karwowski , S. Goriely

It is shown how a bare three-nucleon force is incorporated into the formalism of the effective interaction approach for hyperspherical harmonics. As a practical example we calculate the ground state properties of 3H and 3He using the…

Nuclear Theory · Physics 2015-06-26 Nir Barnea , Victor D. Efros , Winfried Leidemann , Giuseppina Orlandini

The astrophysically important 3He(a,g)7Be reaction was studied at high energies where the available experimental data are in contradiction. A thin window 3He gas cell was used and the cross section was measured with the activation method.…

Nuclear Experiment · Physics 2013-04-18 C. Bordeanu , Gy. Gyürky , Z. Halász , T. Szücs , G. G. Kiss , Z. Elekes , J. Farkas , Zs. Fülöp , E. Somorjai

The electromagnetic responses obtained from Green's function Monte Carlo (GFMC) calculations are based on realistic treatments of nuclear interactions and currents. The main limitations of this method comes from its nonrelativistic nature…

Nuclear Theory · Physics 2018-05-09 Noemi Rocco , Winfried Leidemann , Alessandro Lovato , Giuseppina Orlandini

Four-body distorted wave theory appropriate for nucleon-nucleus reactions leading to 3-body continuum excitations of two-neutron Borromean halo nuclei is developed. The peculiarities of the halo bound state and 3-body continuum are fully…

Nuclear Theory · Physics 2016-09-08 S. N. Ershov , T. Rogde , B. V. Danilin , J. S. Vaagen , I. J. Thompson , F. A. Gareev

The Alt-Grassberger-Sandhas N-body theory is used to study interaction of eta-mesons with d, 3He, and 4He. Separable expansion of the subamplitudes is adopted to convert the integral equations into the quasi-two-body form. The resulting…

Nuclear Theory · Physics 2018-04-18 A. Fix , O. Kolesnikov

By analysing the high momentum features of the nucleon momentum distribution in light and complex nuclei, it is argued that the basic two-nucleon configurations generating the structure of the nucleon Spectral Function at high values of the…

Nuclear Theory · Physics 2008-11-26 C. Ciofi degli Atti , S. Simula

We present a microscopic calculation of the 6He beta-decay into the ground state of 6Li. To this end we use the impulse approximation to describe the nuclear weak current. The ground state wave functions are obtained from the solution of…

Nuclear Theory · Physics 2009-01-20 Doron Gazit , Sergey Vaintraub , Nir Barnea

A particular three-body mechanism is responsible for the missing strength which has been reported in $^3$He(e,e$'$p) reactions at missing momentum above 700 MeV/c. It corresponds to the absorption of the virtual photon by a nucleon at rest…

Nuclear Theory · Physics 2011-02-19 J. M. Laget

On the base of potential theory of light nuclei cluster photodisintegration the characteristics of Lithium nuclei cluster photodisintegration reactions are considered in the range of low and intermediate energies. For the inverse reaction…

Nuclear Theory · Physics 2017-12-11 M. A. Zhusupov , K. A. Zhaksybekova , R. S. Kabatayeva

Photodisintegration and radiative capture in the N2H, N3H, N3He, 2H2H, 2H3He, 2H4He, 3He3H, 4He3H, and 4He3He channels are studied on the basis of the corresponding two-cluster potential models. The astrophysical S factors at low energies…

Nuclear Theory · Physics 2007-05-23 S. B. Dubovichenko , A. V. Dzhazairov-Kakhramanov

We have studied the scaling properties of the electromagnetic response functions of $^4$He and $^{12}$C nuclei computed by the Green's Function Monte Carlo approach, retaining only the one-body current contribution. Longitudinal and…

Nuclear Theory · Physics 2017-08-02 N. Rocco , L. Alvarez-Ruso , A. Lovato , J. Nieves

Cross sections for the 3He(e,e'pp)n reaction were measured at an energy transfer of 220 MeV and three-momentum transfers q of 305, 375, and 445 MeV/c. Results are presented as a function of q and the final-state neutron momentum for slices…

Photodisintegration and radiative capture in the N2H, N3H, N3He, 2H2H, 2H3He, 2H4He, 3He3H, 4He3H, and 4He3He channels are studied on the basis of the corresponding two-cluster potential models. The astrophysical S factors at low energies…

Nuclear Theory · Physics 2015-06-26 S. B. Dubovichenko , A. V. Dzhazairov-Kakhramanov

We report the first calculations of cross sections for the radiative capture reactions t(alpha,gamma)^7Li and ^3He(alpha,gamma)^7Be below 2 MeV which use wave functions derived from realistic nucleon-nucleon interactions by the variational…

Nuclear Theory · Physics 2009-11-07 Kenneth M. Nollett

The separated electromagnetic responses $R_L(q,\omega)$ and $R_T(q,\omega)$ for inclusive electron scattering off nuclei are studied within a functional scheme.

Nuclear Theory · Physics 2007-05-23 R. Cenni , F. Conte , P. Saracco

Experiment E02-019, performed in Hall C at the Thomas Jefferson National Accelerator Facility (TJNAF), was a measurement of inclusive electron cross sections for several nuclei ($^{2}$H,$^{3}$He, $^{4}$He, $^{9}$Be,$^{12}$C, $^{63}$Cu, and…

Nuclear Experiment · Physics 2008-12-12 Nadia Fomin
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