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The process $\gamma + t \to n + d$ is treated by means of three-body integral equations employing in their kernel the W-Matrix representation of the subsystem amplitudes. As compared to the plane wave (Born) approximation the full solution…

Nuclear Theory · Physics 2008-11-26 W. Schadow , W. Sandhas

Two- and three- particles photodisintegration of the triton is investigated in a three-dimensional (3D) Faddeev approach. For this purpose the Jacobi momentum vectors for three particles system and spin-isospin quantum numbers of the…

Nuclear Theory · Physics 2012-02-21 M. A. Shalchi , S. Bayegan

An interaction of a photon with $^3H$ is invstigated based on a three dimensional Faddeev approach. In this approach the three-nucleon Faddeev equations with two-nucleon interactions are formulated with consideration of the magnitude of the…

Nuclear Theory · Physics 2010-04-30 S. Bayegan , M. A. Shalchi , M. R. Hadizadeh

Using the Lorentz Integral Transform (LIT) method we compare the results for the triton total photodisintegration cross section obtained using the Correlated Hyperspherical Harmonics (CHH) and the Effective Interaction Hyperspherical…

Three- and four-nucleon photodisintegration processes are quite efficiently treated by means of effective two-body integral equations in momentum space. We recall some aspects of their derivation, present previous and most recent results…

Nuclear Theory · Physics 2009-10-30 W. Sandhas , W. Schadow , G. Ellerkmann , L. L. Howell , S. A. Sofianos

The total photodisintegration cross sections of three-body nuclei are calculated with semirealistic NN potentials below pion threshold. Full final state interaction with Coulomb force is taken into account via the Lorentz integral transform…

Nuclear Theory · Physics 2009-10-30 V. D. Efros , W. Leidemann , G. Orlandini

The Li7 total photoabsorption cross section is calculated microscopically. As nucleon-nucleon interaction the semi-realistic central AV4' potential with S- and P-wave forces is taken. The interaction of the final 7-nucleon system is fully…

Nuclear Theory · Physics 2009-11-10 S. Bacca , H. Arenhoevel , N. Barnea , W. Leidemann , G. Orlandini

An exact calculation of the photodisintegration cross section of 3H, 3He and 4He is performed using as interaction the correlated Argonne V18 potential, constructed within the Unitary Correlation Operator Method (VUCOM). Calculations are…

Nuclear Theory · Physics 2016-09-08 Sonia Bacca

The two-body photodisintegration of $^4$He into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at Jefferson Laboratory. Real photons produced with the Hall-B bremsstrahlung-tagging system in the…

Nuclear Experiment · Physics 2010-05-12 R. Nasseripour , B. L. Berman , N. Benmouna , Y. Ilieva , J. -M. Laget

We calculate the two-body triton photodisintegration cross section as a function of photon energy to next-to-next-to leading order (NNLO) in pionless effective field theory (EFT($\pi \!\!/$)) and show good agreement with experiment. In…

Nuclear Theory · Physics 2025-08-22 Xincheng Lin , Jared Vanasse

The three-nucleon photodisintegration of 3He has been calculated in the whole phase space using consistent Faddeev equations for the three-nucleon bound and scattering states. Modern nucleon-nucleon and 3N forces have been applied as well…

Nuclear Theory · Physics 2009-11-10 R. Skibinski , J. Golak , H. Witala , W. Glockle , H. Kamada , A. Nogga

We discuss the available data for the differential and the total cross section for the photodisintegration of $^3$He and $^3$H and the corresponding inverse reactions below $E_\gamma = 100$ MeV by comparing with our calculations using…

Nuclear Theory · Physics 2009-11-06 W. Schadow , O. Nohadani , W. Sandhas

Different momentum space Faddeev-like equations and their solutions for the radiative pd-capture and the three-nucleon photodisintegration of 3He are presented. Applications are based on the AV18 nucleon-nucleon and the Urbana IX three…

Nuclear Theory · Physics 2009-11-10 R. Skibinski , J. Golak , H. Witala , W. Glockle , A. Nogga

Absorption of infrared and visible radiation from stellar emission spectra by the negatively charged hydrogen ions H$^{-}$ is considered. The explicit formula for the photodetachment cross-section of the negatively charged hydrogen ion(s)…

Solar and Stellar Astrophysics · Physics 2015-06-01 Alexei M. Frolov

Photodisintegration of polarized 3He by linearly or circularily polarized photons offers a rich choice of observables which can be calculated with high precision using a rigorous scheme of three-nucleon Faddeev equations. Using the…

Nuclear Theory · Physics 2020-02-12 H. Witała , J. Golak , R. Skibiński , K. Topolnicki , V. Urbanevych

We have developed a phenomenological quasi-deuteron model to describe photodisintegration reactions of $^3$He and $^4$He at intermediate photon energies, and compared the results with experimental data obtained by TAGX group in which…

Nuclear Theory · Physics 2011-04-20 Y. Umemoto , S. Hirenzaki , K. Kume

Photodisintegration of the deuteron above pi-threshold is studied in a coupled channel approach including N Delta- and pi d-channels with pion retardation in potentials and exchange currents. A much improved description of total and…

Nuclear Theory · Physics 2009-10-30 M. Schwamb , H. Arenhoevel , P. Wilhelm , T. Wilbois

Photodisintegration of the deuteron above $\pi$ threshold is studied in a coupled channel approach including $N \Delta$ and $\pi d$ channels with consideration of pion retardation in potentials and exchange currents. A much improved…

Nuclear Theory · Physics 2009-11-06 Michael Schwamb , Hartmuth Arenhoevel

Total photonuclear absorption cross sections of $^3$H and $^3$He are studied using realistic NN and NNN forces. Final state interactions are fully included. Two NN potential models, the AV14 and the r-space Bonn-A potentials, are…

Nuclear Theory · Physics 2009-10-31 Victor D. Efros , Winfried Leidemann , Giuseppina Orlandini , Edward L. Tomusiak

We calculate the asymmetries in parity nonconserving deuteron photodisintegration due to circularly polarized photons gamma+d to n+p with the photon laboratory energy ranging from the threshold up to 10 MeV and the radiative capture of…

Nuclear Theory · Physics 2011-05-09 T. M. Partanen , J. A. Niskanen
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