Hybridization of [ital sd]- and [ital fp]-shell proton orbitals in the system [sup 36]S+[sup 37]Cl

• Published in: Physical review letters Vol. 70:3
• Main Authors: Bilwes, R., Bilwes, B., Stuttge, L., Ferrero, J.L., Ruiz, J.A., von Oertzen, W., Imanishi, B.
• Format: Journal Article
• Language: English
• Published: United States 18-01-1993
• Subjects: 663530 > Nuclear Mass Ranges > A=20-38 > (1992-); BARYONS; BINDING ENERGY; CHARGED-PARTICLE REACTIONS; CHLORINE 37; CHLORINE ISOTOPES; COUPLED CHANNEL THEORY; CROSS SECTIONS; DATA; DISTORTED WAVE THEORY; ELEMENTARY PARTICLES; ENERGY; ENERGY RANGE; EVEN-EVEN NUCLEI; EXPERIMENTAL DATA; FERMIONS; FUNCTIONS; HADRONS; HEAVY ION REACTIONS; INFORMATION; ISOTOPES; LIGHT NUCLEI; MEV RANGE; MEV RANGE 10-100; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; NUMERICAL DATA; ODD-EVEN NUCLEI; PARITY; PARTICLE KINEMATICS; PARTICLE PROPERTIES; PROTONS; STABLE ISOTOPES; SULFUR 36; SULFUR ISOTOPES 663450 > Heavy-Ion-Induced Reactions & Scattering > (1992-); WAVE FUNCTIONS
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.70.259

Experimental and theoretical evidence is presented that the proton exchange is strongly enhanced by a mixing of single-particle configurations in [sup 37]Cl (in the system [sup 36]S+[sup 37]Cl,) which is shown to be the clearest example of hybridization in nuclear physics. The experimental data on elastic and inelastic transfer are only reproduced if the complete set of single-particle states ([ital d][sub 3/2],[ital s][sub 1/2],[ital f][sub 7/2],[ital p][sub 3/2],[ital f][sub 5/2], and [ital p][sub 1/2]) is included in a coupled-reaction-channel calculation. The strong enhancement is explained by the hybridization of orbits of different parity. In a two-center molecular-orbital approach the density of the proton orbitals in the lowest state is shown to be concentrated at the center between the two [sup 36]S cores.