Spectroscopy of the ODD-ODD nucleus 76As and its supersymmetric description

F. Hoyler; J. Jolie; Glenn G. Colvin; H. G. Börner; K. Schreckenbach; Piet Van Isacker; P. Fettweis; H. Göktürk; J. C. Dehaes; R. F. Casten; D. D. Warner; Alison M. Bruce

doi:10.1016/0375-9474(90)93112-J

Spectroscopy of the ODD-ODD nucleus ⁷⁶As and its supersymmetric description

F. Hoyler, J. Jolie, Glenn G. Colvin, H. G. Börner, K. Schreckenbach, Piet Van Isacker, P. Fettweis, H. Göktürk, J. C. Dehaes, R. F. Casten, D. D. Warner, Alison M. Bruce

Research output › peer-review

Abstract

Gamma rays and conversion electrons following thermal-neutron capture in ⁷⁵As have been measured using the Ge pair spectrometer PN4, the bent crystal spectrometers GAMS and the β-spectrometer BILL at the ILL. Coincident γ-rays were recorded at the CEN/SCK Mol, and average resonance capture at E_n = 2 and 24 keV has been studied at the HFBR of BNL. The neutron binding energy in ⁷⁶As was determined to be 7328.498 ± 0.075 keV. The resulting level scheme for ⁷⁶As greatly improves the knowledge on this odd-odd nucleus. The low-lying positive-parity states are discussed in the U(5) limit of the U_v(6/12)⊗U_π(6/12) supersymmetry using the same hamiltonian to describe the quartet ⁷⁶Se-⁷⁷Se-⁷⁵As-⁷⁶As having the same total number of bosons plus fermions.

Original language	English
Pages (from-to)	189-216
Number of pages	28
Journal	Nuclear Physics, Section A
Volume	512
Issue number	2
DOIs	https://doi.org/10.1016/0375-9474(90)93112-J
State	Published - 1990

Funding

F.H. thanks the BNL for the hospitality and financial assistance during his stay at BNL. H.G. thanks the CEN/SCK for the hospitality granted during her stay and NATO S.R.D. (RG, 84/0332) for supporting travel expenses. Work partially performed in the frame of a convention between the Universit6 Libre de Bruxelles and CEN/SCK. Furthermore it was partially supported by NATO research grants 332/84 and RG, 85/0699. Research performed in part under contract DE-AC02-76CH00016 with the US Department of Energy.

Funders	Funder number
Department of Energy (DOE) - National Nuclear Security Administration (NNSA)
Not added	85/0699, 332/84, DE-AC02-76CH00016

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/0375-9474(90)93112-J

Cite this

@article{470c06603ebd4875af5893eeef05e6e9,

title = "Spectroscopy of the ODD-ODD nucleus 76As and its supersymmetric description",

abstract = "Gamma rays and conversion electrons following thermal-neutron capture in 75As have been measured using the Ge pair spectrometer PN4, the bent crystal spectrometers GAMS and the β-spectrometer BILL at the ILL. Coincident γ-rays were recorded at the CEN/SCK Mol, and average resonance capture at En = 2 and 24 keV has been studied at the HFBR of BNL. The neutron binding energy in 76As was determined to be 7328.498 ± 0.075 keV. The resulting level scheme for 76As greatly improves the knowledge on this odd-odd nucleus. The low-lying positive-parity states are discussed in the U(5) limit of the Uv(6/12)⊗Uπ(6/12) supersymmetry using the same hamiltonian to describe the quartet 76Se-77Se-75As-76As having the same total number of bosons plus fermions.",

author = "F. Hoyler and J. Jolie and Colvin, {Glenn G.} and B{\"o}rner, {H. G.} and K. Schreckenbach and {Van Isacker}, Piet and P. Fettweis and H. G{\"o}kt{\"u}rk and Dehaes, {J. C.} and Casten, {R. F.} and Warner, {D. D.} and Bruce, {Alison M.}",

year = "1990",

doi = "10.1016/0375-9474(90)93112-J",

language = "English",

volume = "512",

pages = "189--216",

journal = "Nuclear Physics, Section A",

issn = "0375-9474",

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TY - JOUR

T1 - Spectroscopy of the ODD-ODD nucleus 76As and its supersymmetric description

AU - Hoyler, F.

AU - Jolie, J.

AU - Colvin, Glenn G.

AU - Börner, H. G.

AU - Schreckenbach, K.

AU - Van Isacker, Piet

AU - Fettweis, P.

AU - Göktürk, H.

AU - Dehaes, J. C.

AU - Casten, R. F.

AU - Warner, D. D.

AU - Bruce, Alison M.

PY - 1990

Y1 - 1990

N2 - Gamma rays and conversion electrons following thermal-neutron capture in 75As have been measured using the Ge pair spectrometer PN4, the bent crystal spectrometers GAMS and the β-spectrometer BILL at the ILL. Coincident γ-rays were recorded at the CEN/SCK Mol, and average resonance capture at En = 2 and 24 keV has been studied at the HFBR of BNL. The neutron binding energy in 76As was determined to be 7328.498 ± 0.075 keV. The resulting level scheme for 76As greatly improves the knowledge on this odd-odd nucleus. The low-lying positive-parity states are discussed in the U(5) limit of the Uv(6/12)⊗Uπ(6/12) supersymmetry using the same hamiltonian to describe the quartet 76Se-77Se-75As-76As having the same total number of bosons plus fermions.

AB - Gamma rays and conversion electrons following thermal-neutron capture in 75As have been measured using the Ge pair spectrometer PN4, the bent crystal spectrometers GAMS and the β-spectrometer BILL at the ILL. Coincident γ-rays were recorded at the CEN/SCK Mol, and average resonance capture at En = 2 and 24 keV has been studied at the HFBR of BNL. The neutron binding energy in 76As was determined to be 7328.498 ± 0.075 keV. The resulting level scheme for 76As greatly improves the knowledge on this odd-odd nucleus. The low-lying positive-parity states are discussed in the U(5) limit of the Uv(6/12)⊗Uπ(6/12) supersymmetry using the same hamiltonian to describe the quartet 76Se-77Se-75As-76As having the same total number of bosons plus fermions.

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