<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">C</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>12</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>-<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">C</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>12</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> resonances studied through <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>γ</mi></math> decay

G. Andritsopoulos; X. Aslanoglou; P. Bakoyeorgos; G. Vourvopoulos

doi:10.1103/PhysRevC.21.1648

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${}^{12}C$ - ${}^{12}C$ resonances studied through $γ$ decay

G. Andritsopoulos, X. Aslanoglou, and P. Bakoyeorgos

G. Vourvopoulos

University of Ioannina, Ioannina, Greece

Tandem Accelerator Laboratory, Nuclear Research Center "Demokritos", Agia Paraskevi-Attikis, Greece

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Phys. Rev. C 21, 1648(R) – Published 1 April, 1980

DOI: https://doi.org/10.1103/PhysRevC.21.1648

Abstract

Resonances in the ${}^{12}C$ - ${}^{12}C$ system and in the energy range $E_{c . m .} = 7 - 10$ MeV were studied through $γ$ decay. Excitation functions of the $γ$ decay of the first excited states of ${}^{20}{Ne}$ , ${}^{23}{Na}$ , and ${}^{23}{Mg}$ seen through the ${}^{12}C$ ( ${}^{12}C$ , $α$ ) ${}^{20}{Ne}$ , ${}^{12}C$ ( ${}^{12}C$ , $p$ ) ${}^{23}{Na}$ , and ${}^{12}C$ ( ${}^{12}C$ , $n$ ) ${}^{23}{Mg}$ reactions corroborated the existence of resonances observed through various particle reactions. With the help of angular distributions from the ${}^{12}C$ ( ${}^{12}C$ , $α$ ) ${}^{20}{Ne}_{g . s .}$ reaction, one other resonance was established at $E_{c . m .} = 9.65$ MeV with $J^{π} = 8^{+}$ .

NUCLEAR REACTIONS ${}^{12}C$ ( ${}^{12}C$ , $α$ ) ${}^{20}{Ne}$ , ${}^{12}C$ ( ${}^{12}C$ , $p$ ) ${}^{23}{Na}$ , ${}^{12}C$ ( ${}^{12}C$ , $n$ ) ${}^{23}{Mg}$ ; $E ({}^{12}C) = 14 - 20$ MeV; measured $σ_{γ} (E)$ , $σ_{α} (E, ϑ)$ , deduced ${}^{24}{Mg}$ resonances; natural target.

References (20)

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K. V. Kettner, H. Lorenz-Wirzba, and C. Rolfs, Phys. Rev. Lett. 38, 337 (1977)
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[c1] D. A. Bromley, J. A. Kuehner, and E. Almqvist, Phys. Rev. Lett. 4, 365 (1960)

[c2] D. A. Bromley, in Proceedings of the Second International Conference on Clustering Phenomena in Nuclei, College Park, Maryland, 1975, edited by D. A. Goldberg, J. P. Marion, and S. J. Wallace (National Technical Information Service Springfield, Virginia, 1975)

[c3] D. A. Bromley, in Proceedings of the E.P.S. Conference, Hvar, 1977, edited by N. Cindro (North-Holland, Amsterdam, 1978), p. 1

[c4] N. Cindro, Nucl. Instrum. Methods 146, 279 (1977)

[c5] N. Cindro, J. Phys. G 4, L23 (1978)

[c6] K. A. Erb, R. R. Betts, P. P. Tung, M. W. Sachs, J. F. Peterson, S. K. Korotky, S. J. Willet, M. M. Hindi, and D. A. Bromley, in Proceedings of the International Conference on Nuclear Structure, Tokyo, 1977, edited by T. Marumori (Physical Society of Japan, Tokyo, 1978), Suppl. J. Phys., p. 638

[c7] K. A. Erb, R. R. Betts, and D. A. Bromley, in Proceedings of the International Conference on Nuclear Structure, Tokyo, 1977, edited by T. Marumori (Physical Society of Japan, Tokyo, 1978), Suppl. J. Phys. p. 640

[c8] K. V. Kettner, H. Lorenz-Wirzba, and C. Rolfs, Phys. Rev. Lett. 38, 337 (1977)

[c9] T. M. Cormier, J. Applegate, G. M. Berkowitz, P. Braun-Munzinger, P. M. Cormier, J. W. Harris, C. M. Jachcinski, L. L. Lee, Jr., J. Barrette, and H. E. Wegner, Phys. Rev. Lett. 38, 940 (1977)

[c10] T. M. Cormier, Phys. Rev. Lett. 40, 924 (1978)

[c11] M. D. High and B. Cujec, Nucl. Phys. A282, 181 (1977)

[c12] T. Paradellis, private communication

[c13] F. R. Cosman, T. M. Cormier, K. Van Bibber, A. Sperduto, G. Young, J. Erskine, R. L. Greenwood, and O. Hansen, Phys. Rev. Lett. 35, 265 (1975)

[c14] D. R. James and N. R. Fletcher, Phys. Rev. C 17, 2248 (1978)

[c15] J. Y. Park, W. Greiner, and W. Scheid, Phys. Rev. C 16, 2276 (1977)

[c16] K. A. Erb, R. R. Betts, D. L. Hanson, M. W. Sachs, R. L. White, P. P. Tung, and D. A. Bromley, Phys. Rev. Lett. 37, 670 (1976)

[c17] Z. Basrak, F. Auger, B. Fernandez, J. Gastebois, and N. Cindro, Phys. Lett. 65B, 119 (1976)

[c18] N. O. Lassen and J. S. Olsen, Kgl. Danske Videnskab. Selskab, Mat. Fys. Medd. 33, No. 13 (1963)

[c19] H. Voit, W. Galster, W. Treu, M. Fröhlich, and P. Dück, Phys. Lett. 67B, 399 (1977)

[c20] R. Wanda, J. Schimizu, and K. Takimoto, Phys. Rev. Lett. 38, 1341 (1977)

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${}^{12}C$ - ${}^{12}C$ resonances studied through $γ$ decay

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C12-C12 resonances studied through γ decay

Abstract

References (20)

${}^{12}C$ - ${}^{12}C$ resonances studied through $γ$ decay