Strongly Excited <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mn>1</mn></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> States in the Reactions <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ca</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>4</mn><mn>6</mn><mo>,</mo><mi> </mi><mn>48</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mo>(</mo><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>3</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mo>,</mo><mi>p</mi><mo>)</mo><mrow><mmultiscripts><mrow><mi mathvariant="normal">Sc</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>4</mn><mn>8</mn><mo>,</mo><mi> </mi><mn>50</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

D. G. Fleming; R. A. Broglia; K. Abdo; O. Nathan; D. J. Pullen; B. Rosner; Ole Hansen

doi:10.1103/PhysRevC.5.1356

Strongly Excited $1^{+}$ States in the Reactions ${}^{46, 48}{Ca} ({}^{3}{He}, p) {}^{48, 50}{Sc}$

D. G. Fleming, R. A. Broglia, K. Abdo, O. Nathan, D. J. Pullen, B. Rosner, and Ole Hansen

Phys. Rev. C 5, 1356 – Published 1 April 1972

Abstract

Several new $1^{+}$ states in ${}^{48, 50}{Sc}$ have been identified in the ( ${}^{3}{He}, p$ ) reaction. From distorted-wave (DW) calculations, it appears that the total $1^{+}$ strength of ${}^{50}{Sc}$ , relative to the strength of the ( $f_{\frac{7}{2}} p_{\frac{3}{2}}$ ) $5^{+}$ ground state, is about a factor of 3 larger than predicted by calculations within the $1 f - 2 p$ configuration space. In ${}^{50}{Sc}$ most of the $1^{+}$ strength is concentrated in one state, whereas ${}^{48}{Sc}$ shows a strong fractionation effect. Such a large $1^{+}$ strength in ${}^{50}{Sc}$ cannot be accounted for by existing nuclear-structure calculations. Provided the DW argument holds true, the large $1^{+}$ strength may indicate a new feature in the spectroscopy of ${}^{48, 50}{Sc}$ and possibly in other odd-odd nuclei in this mass region.

Received 13 September 1971

DOI:https://doi.org/10.1103/PhysRevC.5.1356

Authors & Affiliations

D. G. Fleming^*,‡, R. A. Broglia, K. Abdo^†,‡, and O. Nathan^‡

The Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark

D. J. Pullen^§,¶ and B. Rosner^∥,¶

Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104

Ole Hansen^**

Los Alamos Scientific Laboratory, University of California, Los Alamos, New Mexico 87544

^*Present address: Department of Chemistry, University of British Columbia, Vancouver 8, British Columbia, Canada.
^†Now at Cairo University, Cairo, Egypt.
^‡Work supported in part by the Rask-Ørsted Foundation in Denmark.
^§Permanent address: Department of Physics and Applied Physics, Lowell Technological Institute, Lowell, Massachusetts 01854.
^∥Permanent address: Department of Physics, Technion, Haifa, Israel.
^¶Work supported in part by the National Science Foundation in the U. S.
^**Work supported in part by the U. S. Atomic Energy Commission.

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Vol. 5, Iss. 4 — April 1972

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