Energy levels of 56Mn

P. H M Van Assche, H. A. Baader, H. R. Koch, B. P K Maier, U. Gruber, O. W B Schult, J. B. McGrory, J. R. Comfort, R. Rimawi, R. E. Chrien, O. A. Wasson, D. I. Garber

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Abstract

The low-energy spectrum of the 55Mn(n, γ)56Mn reaction has been studied with a γ-diffraction spectrometer. These data allowed the construction of a level scheme for56Mn with two previously unobserved doublets. High-energy γ-transitions to the low-energy states have been measured for different neutron resonances at the BNL fast neutron chopper. For most states a unique spin and parity could be proposed. A shell-model calculation of the structure of the low-lying states of56Mn has been carried out with the Oak Ridge-Rochester computer programme; there are plausible theoretical analogues for 11 of the 12 experimentally observed states. Calculated spectroscopic factors and M1 transition probabilities are in qualitative agreement with the experiment.

Original languageEnglish (US)
Pages (from-to)367-384
Number of pages18
JournalNuclear Physics, Section A
Volume160
Issue number2
DOIs
StatePublished - Jan 11 1971
Externally publishedYes

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energy levels
electric choppers
fast neutrons
transition probabilities
ridges
parity
energy spectra
spectrometers
analogs
computer programs
neutrons
energy
diffraction

Keywords

  • Nuclear Reactions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Van Assche, P. H. M., Baader, H. A., Koch, H. R., Maier, B. P. K., Gruber, U., Schult, O. W. B., ... Garber, D. I. (1971). Energy levels of 56Mn. Nuclear Physics, Section A, 160(2), 367-384. https://doi.org/10.1016/0375-9474(71)90138-2

Energy levels of 56Mn. / Van Assche, P. H M; Baader, H. A.; Koch, H. R.; Maier, B. P K; Gruber, U.; Schult, O. W B; McGrory, J. B.; Comfort, J. R.; Rimawi, R.; Chrien, R. E.; Wasson, O. A.; Garber, D. I.

In: Nuclear Physics, Section A, Vol. 160, No. 2, 11.01.1971, p. 367-384.

Research output: Contribution to journalArticle

Van Assche, PHM, Baader, HA, Koch, HR, Maier, BPK, Gruber, U, Schult, OWB, McGrory, JB, Comfort, JR, Rimawi, R, Chrien, RE, Wasson, OA & Garber, DI 1971, 'Energy levels of 56Mn', Nuclear Physics, Section A, vol. 160, no. 2, pp. 367-384. https://doi.org/10.1016/0375-9474(71)90138-2
Van Assche PHM, Baader HA, Koch HR, Maier BPK, Gruber U, Schult OWB et al. Energy levels of 56Mn. Nuclear Physics, Section A. 1971 Jan 11;160(2):367-384. https://doi.org/10.1016/0375-9474(71)90138-2
Van Assche, P. H M ; Baader, H. A. ; Koch, H. R. ; Maier, B. P K ; Gruber, U. ; Schult, O. W B ; McGrory, J. B. ; Comfort, J. R. ; Rimawi, R. ; Chrien, R. E. ; Wasson, O. A. ; Garber, D. I. / Energy levels of 56Mn. In: Nuclear Physics, Section A. 1971 ; Vol. 160, No. 2. pp. 367-384.
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