Now showing items 31-40 of 68
Alpha and 8Be cluster amplitudes and core excitations in s-d shell nuclei
(Elsevier, 1977-06-13)
SU(3) and SU(4) recoupling are used to develop techniques for the calculation of norm and overlap matrix elements for properly antisymmetrized cluster wave functions. These techniques are illustrated in detail by the ...
An SU(3) approach to nuclear multi-cluster problems
(Elsevier, 1979-04-16)
By combining SU(3) recoupling techniques with the use of the Bargmann-Segal integral transform closed expressions are derived for the interaction kernels of the nuclear cluster model. In a cluster model basis in which the ...
On the new quasiparticle factorization of the j-shell
(Elsevier, 1970-12-14)
The new Elliott-Evans classification scheme by means of a quasiparticle factorization of the j-shell of both protons and neutrons is developed further. The needed reduced matrix elements follow from the equivalence between ...
A search for precursors to extensive air showers
(Elsevier, 1975-09-29)
No evidence for precursors to cosmic ray air showers was found ("flux"[lsim]10-8cm-2 sr-1s-1) in a sample 2.8 times that of Clay and Crouch and a system noise level several times lower. A simple model leads to a cross ...
Isobaric analog states of the tin and tellurium isotopes studied with the (3He, t) reaction at [theta]L = 0[deg]
(Elsevier, 1976-10-26)
The Sn(3He, t)Sb and Te(3He, t)I reactions to the g.s. isobaric analog states (IAS) of 112, 114, 116, 117, 118, 119, 120, 122, 124Sn and 124, 125, 126, 128, 130Te have been studied at [theta] = 0[deg] and E(3He) = 45.9 ...
The Bargmann-Segal transform, SU(3) symmetry, and nuclear cluster norms
(Elsevier, 1979-01)
By combining the use of the Bargmann-Segal integral transform with SU(3) recoupling techniques a new method is developed for the calculation of matrix elements in a basis of cluster model wave functions. An analytic ...
On the transition from shell structure to collective behavior : A simplified shell-model study
(Elsevier, 1972-12-18)
To study the feasibility of carrying out shell-model calculations in nuclei with active protons and neutrons in different major shells, the following simple idealized model has been studied: (i) Proton and neutron ...
Alpha-particle pickup on rare-earth nuclei with the (d, 6Li) reaction at 35 MeV
(Elsevier, 1977-01-17)
Spectra and angular distributions have been measured for the (d, 6Li) reaction on 138Ba, 140, 142Ce, 142, 144, 146Nd, 144, 148, 150, 154Sm and 166Er using 35 MeV deuterons and magnetic analysis. Good agreement between ...
12C(6Li, d)16O and16O(6Li, d)20Ne at E(6Li) = 42 MeV
(Elsevier, 1978-07-31)
Spectra up to 25 MeV excitation in 16O have been obtained from 12C(6Li, d) at 42 MeV bombarding energy. Angular distributions have been measured for ten states, including two J[pi] = 1- states of astrophysical interest, ...
Study of the structure of 36S and 38Ar
(Elsevier, 1970-01-19)
The 37Cl(d, 3He)36S and 39K(d, 3He)38 Ar reactions have been studied at a bombarding energy of 28.9 MeV. The results are compared with theoretical calculations for two or four holes in the sd-shell. The three-hole spectrum ...