Empirical estimates of the proton-neutron interaction and diabolical points

J. Y. Zhang; J. D. Garrett; R. F. Casten; D. S. Brenner; C. Wesselborg; C. H. Yu; M. Carpenter

doi:10.1016/0375-9474(90)91151-G

Empirical estimates of the proton-neutron interaction and diabolical points

J. Y. Zhang, J. D. Garrett, R. F. Casten, D. S. Brenner, C. Wesselborg, C. H. Yu, M. Carpenter

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1 Scopus citations

Abstract

The use of constant-N contours in the (ω,λ) plane is demonstrated both for establishing diabolical points and for studying regularities and fluctuations in the spectrum of single-particle states. Likewise the average properties and fluctuations of empirical proton-neutron interactions, obtained from double differentials of the total energy with respect to N and Z, are discussed for the ground states of all even-even nuclei with N>40 and as a function of the rotational frequency for the lowest even spin, positive-parity decay sequence of deformed rare earth nuclei.

Original language	English
Pages (from-to)	c251-c258
Journal	Nuclear Physics A
Volume	520
Issue number	C
DOIs	https://doi.org/10.1016/0375-9474(90)91151-G
State	Published - Dec 1990
Externally published	Yes

Funding

J.-Y. Z., acknowledges the hospitality of tile Physics Department at BNL, the Joint Institute of Heavy Ion Research at ORNL and the Physics Department of SUNY at Stony Brook during his visit. C.W., acknowledges a Lynen-Fellowship of the Alexander yon Humboldt-Foundation. This work was supported in part by the U.S. Department of Energy contract Nos. DE-AC02-76CH00016, DE-FG02-88ER40417, DE-AC05-840R21400, and DE-AS05-76ERO-4936.

Funders	Funder number
U.S. Department of Energy

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abstract = "The use of constant-N contours in the (ω,λ) plane is demonstrated both for establishing diabolical points and for studying regularities and fluctuations in the spectrum of single-particle states. Likewise the average properties and fluctuations of empirical proton-neutron interactions, obtained from double differentials of the total energy with respect to N and Z, are discussed for the ground states of all even-even nuclei with N>40 and as a function of the rotational frequency for the lowest even spin, positive-parity decay sequence of deformed rare earth nuclei.",

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AU - Garrett, J. D.

AU - Casten, R. F.

AU - Brenner, D. S.

AU - Wesselborg, C.

AU - Yu, C. H.

AU - Carpenter, M.

PY - 1990/12

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Empirical estimates of the proton-neutron interaction and diabolical points

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