High-spin states in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Ti</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>44</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Sc</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>44</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

J. J. Kolata; J. W. Olness; E. K. Warburton

doi:10.1103/PhysRevC.10.1663

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High-spin states in ${}^{44}{Ti}$ and ${}^{44}{Sc}$

J. J. Kolata, J. W. Olness, and E. K. Warburton

Brookhaven National Laboratory, Upton, New York 11973

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Phys. Rev. C 10, 1663 – Published 1 November, 1974

DOI: https://doi.org/10.1103/PhysRevC.10.1663

Abstract

We have investigated high-spin states in ${}^{44}{Ti}$ and ${}^{44}{Sc}$ with the ${}^{28}{Si} ({}^{19}F, p 2 n γ) {}^{44}{Ti}$ and ${}^{28}{Si} ({}^{19}F, 2 p n γ) {}^{44}{Sc}$ reactions at 45-55 MeV. Angular distribution, linear polarization, and $γ - γ$ coincidence data on the emitted $γ$ rays allowed us to construct decay schemes for states in ${}^{44}{Ti}$ and ${}^{44}{Sc}$ , and to suggest likely spin and parity assignments for most of these states. In each case, positive parity levels with spins up to the maximum value permitted within a ${(f_{\frac{7}{2}})}^{4}$ shell-model space were populated. Results of lifetime measurements for several of these states are given, and a comparison is presented of the level energies and some transition strengths to the predictions of shell-model calculations.

NUCLEAR REACTIONS ${}^{28}{Si} ({}^{19}F, p 2 n γ γ \dots)$ , $E = 45 - 55$ MeV, ${}^{28}{Si} ({}^{19}F, p 2 n γ γ \dots)$ , $E = 45 - 45$ MeV; measured $γ γ$ coin.; deduced levels in ${}^{44}{Ti}$ , ${}^{44}{Sc}$ ; measured $σ (E_{γ}, Θ)$ and $P_{γ}$ ; deduced $J^{π}$ for high-spin levels; measured recoil distance; deduced $T_{\frac{1}{2}}$ , $B (E 2)$ , effective charges. Natural targets, Ge(Li) detectors.

References (15)

J. J. Simpson, W. R. Dixon, and R. S. Storey, Phys. Rev. 31, 946 (1973)
K. H. Bhatt and J. B. McGrory, Phys. Rev. C 3, 2293 (1971)
J. D. McCullen, B. F. Bayman, and L. Zamick, Phys. Rev. 134, B515 (1964)
E. K. Warburton, J. J. Kolata, J. W. Olness, A. R. Poletti, and Ph. Gorodetzky, Atomic Data and Nuclear Data Tables (to be published)
Ph. Gorodetzky, J. J. Kolata, J. W. Olness, A. R. Poletti, and E. K. Warburton, Phys. Rev. Lett. 31, 1067 (1973)
J. J. Kolata, Ph. Gorodetzky, J. W. Olness, A. R. Poletti, and E. K. Warburton, Phys. Rev. C 9, 953 (1974)
J. W. Olness, A. H. Lumpkin, J. J. Kolata, E. K. Warburton, J. S. Kim, and Y. K. Lee, Phys. Rev. (to be published)
K. S. Krane, R. M. Steffen, and R. M. Wheeler, Nucl. Data A11, 351 (1973)
E. C. Halbert, J. B. McGrory, B. H. Wildenthal, and S. P. Pandya, in Advances in Nuclear Physics, edited by M. Baranger and E. Vogt (Plenum, New York, 1971), Vol. 4
B. A. Brown, D. B. Fossan, J. M. McDonald, and K. A. Snover, Phys. Rev. C 9, 1033 (1974)
T. Nomura and T. Yamazaki, in Proceedings of the Topical Conference on the Structure of ${1 f}_{7 / 2}$ Nuclei, Legnaro (Padova), edited by R. A. Ricci (Editrice Compositori, Bologna, 1971), p. 437
S. E. Arnell and E. Selin, Physica Scripta 8, 191 (1973)
G. D. Dracoulis, J. L. Durell, and W. Gelletly, J. Phys. A 6, 1030, 1772 (1973)
L. Zamick, as quoted in the Annual Report of the University of Munich, 1972 (unpublished)
A. R. Poletti, B. A. Brown, D. B. Fossan, Ph. Gorodetzky, J. J. Kolata, J. W. Olness, and E. K. Warburton, Phys. Rev. C 10, 997 (1974)

[c1] J. J. Simpson, W. R. Dixon, and R. S. Storey, Phys. Rev. 31, 946 (1973)

[c2] K. H. Bhatt and J. B. McGrory, Phys. Rev. C 3, 2293 (1971)

[c3] J. D. McCullen, B. F. Bayman, and L. Zamick, Phys. Rev. 134, B515 (1964)

[c4] E. K. Warburton, J. J. Kolata, J. W. Olness, A. R. Poletti, and Ph. Gorodetzky, Atomic Data and Nuclear Data Tables (to be published)

[c5] Ph. Gorodetzky, J. J. Kolata, J. W. Olness, A. R. Poletti, and E. K. Warburton, Phys. Rev. Lett. 31, 1067 (1973)

[c6] J. J. Kolata, Ph. Gorodetzky, J. W. Olness, A. R. Poletti, and E. K. Warburton, Phys. Rev. C 9, 953 (1974)

[c7] J. W. Olness, A. H. Lumpkin, J. J. Kolata, E. K. Warburton, J. S. Kim, and Y. K. Lee, Phys. Rev. (to be published)

[c8] K. S. Krane, R. M. Steffen, and R. M. Wheeler, Nucl. Data A11, 351 (1973)

[c9] E. C. Halbert, J. B. McGrory, B. H. Wildenthal, and S. P. Pandya, in Advances in Nuclear Physics, edited by M. Baranger and E. Vogt (Plenum, New York, 1971), Vol. 4

[c10] B. A. Brown, D. B. Fossan, J. M. McDonald, and K. A. Snover, Phys. Rev. C 9, 1033 (1974)

[c11] T. Nomura and T. Yamazaki, in Proceedings of the Topical Conference on the Structure of ${1 f}_{7 / 2}$ Nuclei, Legnaro (Padova), edited by R. A. Ricci (Editrice Compositori, Bologna, 1971), p. 437

[c12] S. E. Arnell and E. Selin, Physica Scripta 8, 191 (1973)

[c13] G. D. Dracoulis, J. L. Durell, and W. Gelletly, J. Phys. A 6, 1030, 1772 (1973)

[c14] L. Zamick, as quoted in the Annual Report of the University of Munich, 1972 (unpublished)

[c15] A. R. Poletti, B. A. Brown, D. B. Fossan, Ph. Gorodetzky, J. J. Kolata, J. W. Olness, and E. K. Warburton, Phys. Rev. C 10, 997 (1974)

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High-spin states in ${}^{44}{Ti}$ and ${}^{44}{Sc}$

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High-spin states in Ti44 and Sc44

Abstract

References (15)

High-spin states in ${}^{44}{Ti}$ and ${}^{44}{Sc}$