Abstract
Elastic and inelastic scattering in the system7Li+7Li was investigated experimentally in the energy range of Elab=8–17 MeV applying the method of kinematic coincidence. Sizeable cross sections were observed in the whole energy range for inelastic excitation of a single7Li nucleus to its first excited state atE *=0.47761 MeV as well as for mutual excitation of both nuclei. Systematic optical model and both one-step and two-step DWBA calculations were performed with the aim of describing in a consistent manner all three channels studied. This was achieved with optical model potentials fitted simultaneously to all elastic scattering data. They were then used to generate form factors for both single and mutual inelastic scattering as well as distorted waves for DWBA description of inelastic scattering considering the same deformation length for all form factors. Potential parameters derived show, despite these constraints, a continuous ambiguity in case of volume absorption while those with surface absorption can be grouped in six distinct families each of them featuring continuous ambiguities. The impact of real and imaginary form factors on single inelastic excitation is reversed for potentials with volume and surface absorption, while mutual excitation is dominated by imaginary form factors.
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Leifels, Y., Domogala, G., Eule, R.P., Freiesleben, H.: Z. Phys. A335, 183 (1990)
Eule, R.P., Leifels, Y., Ricken, L., Freiesleben, H.: Nucl. Phys. A529, 387 (1991)
Domogala, G., Freiesleben, H.: Nucl. Phys. A467, 149 (1987)
Gehrmann, B.: Diploma Thesis, Bochum 1989 (unpublished)
Bennet, J.R., Grant, I.S.: Proc. of the Third Conference on Reactions between Complex Nuclei, Asilomar, April 1963, p. 50. Los Angeles: University Press 1963
Pinsonneault, L.L., Blair, J.M.: Phys. Rev.141, 961 (1966)
Norbeck, E., Wu, P.T., Chen, C.R., Carlson, R.R.: Phys. Rev. C28, 1140 (1983)
Fortune, H.T., Morrison, C.C., Siemssen, R.H.: Phys. Rev. C3, 2133 (1971)
Gruber, G., Dormehl, I.C., Meier-Ewert, K., Bethge, K.: Z. Phys.265, 411 (1973)
Ajzenberg-Selove, F.: Nucl. Phys. A490, 1 (1988)
Stockstad, R.G., Wieland, R.M., Satchler, G.R., Fulmer, C.B., Hensley, D.C., Raman, S., Rickertsen, L.D., Snell, A.H., Stelson, P.H.: Phys. Rev C20, 655 (1979)
Cook, J., Stephens, M.N., Kemper, K.W., Abdallah, A.K.: Phys. Rev. C33, 915 (1986)
Petrovich, F., Stanley, D.: Nucl. Phys. A275, 487 (1977)
Cook, J., Clarke, N.M., Coopersmith, J., Griffith, R.J.: Nucl. Phys. A386, 346 (1982)
Betts, R.R., Clerc, H.-G., Back, B.B., Ahmad, I., Wolf, K.L., Glagola, B.G.: Phys. Rev. Lett.46, 313 (1981)
Sanderson, D.P., Verst, S.P., van Cook, J., Kemper, K.W., Eck, J.S.: Phys. Rev. C32, 887 (1985)
Onishi, H., Tanifuji, M., Kamimura, M., Sukuragi, Y., Yahiro, M.: Nucl. Phys. A415, 217 (1984)
Tungate, G., Kramer, D., Butsch, R., Karban, O., Moebius, K.H., Ott, W., Paul, P., Weller, A., Steffens, E., Becker, K., Blatt, K., Fick, D., Heck, B., Jaensch, H., Leucker, H., Rusek, K., Turkiewicz, Irena, T., Moroz, Z.: J. Phys. G12, 1001 (1986)
Domogala, G., Freiesleben, H., Hippert, B.: Nucl. Instrum. Methods A257, 7 (1987)
Kroon, P.A., Sporrel, F.: Program PAX, KVI Ann. Rep. 1981, Private communication
Ricken, L.: Program package SHF: Private communication
Malfliet, R.A., Landowne, S., Rostokin, V.: Phys. Lett. B,44 238 (1973)
Blair, J.S.: Phys. Rev.115, 928 (1959)
Tamura, T.: Rev. Mod. Phys.37, 679 (1965)
Austern, N.: Direct nuclear reaction theories. New York: Wiley 1970
Satchler, G.R.: Direct nuclear reactions. Oxford: Clarendon Press; New York: Oxford University Press 1983
Tamura, T.: Phys. Rep.14, 59 (1974)
Kamys, B.: (unpublished)
Coker, W.R., Udagawa, T., Wolter, H.H.: Phys. Rev. C7, 1154 (1973)
Broglia, R.A., Winther, A.: Heavy ion reactions. Lecture notes. Vol. I/II, p. 164. Reading Mass: Addison-Wesley 1991
Turkiewicz, J.M., Moroz, Z., Rusek, K., Thompson, I.J., Butsch, R., Krämer, D., Ott, W., Steffens, E., Tungate, G., Becker, K., Blatt, K., Jänsch, H.J., Leucker, H., Fick, D.: Nucl. Phys. A486, 152 (1988)
Poling, J.E., Norbeck, E., Carlson, R.R.: Phys. Rev. C13, 648 (1976)
Zeller, A.F., Kemper, K.W., Weisser, D.C., Ophel, T.R., Hebbard, D.F., Johnston, A.: Nucl. Phys. A323, 477 (1979)
Weber, K.A., Meier-Ewert, K., Schmidt-Boecking, H., Bethge, K.: Nucl. Phys. A186, 145 (1972)
Jarczyk, L., Kamys, B., Rudy, Z., Strzalkowski, A., Styczen, B., Berg, G.P.A., Magiera, A., Meissburger, J., Oelert, W., von Rossen, P., Römer, J.G.M., Tain, J.L., Wolter, H.H., Kwasniewicz, E., Kisiel, J.: Phys. Rev. C33, 934 (1986)
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We gratefully acknowledge the advice of G.R. Satchler concerning the problem of antisymmetrization and his valuable comments on the manuscript.
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Bachmann, A.M., Brand, H., Freiesleben, H. et al. 7Li-7Li elastic and inelastic scattering at Elab=8–17 MeV. Z. Physik A - Hadrons and Nuclei 346, 47–61 (1993). https://doi.org/10.1007/BF01290781
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DOI: https://doi.org/10.1007/BF01290781