Abstract
The energy distributions of neutrons fromμ capture in Tl, Pb, and Bi were measured applying a time-of-flight technique, using de-excitationγ-rays from final nuclei as a time reference. The spectra exhibit an evaporation part, which is described by nuclear temperatures varying fromθ=1.06 MeV for Bi toθ=1.22 MeV for Pb, and an exponentially decreasing high-energy distribution with a relative intensity of ∼10%, which is interpreted, on the basis of a simple model, as being due to direct and pre-compound processes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Balashov, V.V., Eramzhyan, R.A.: Atom. En. Rev.5 (3), 3 (1967)
Lubkin, E.: Ann. Phys. (USA)11, 414 (1960)
Hagge, D.E.: Thesis, UCRL-10516. Univ. of California 1963
Singer, P.: Nuovo Cimento23, 669 (1962)
Dolinsky, E.I., Blokhintzev, L.D.: Nuclear Phys.10, 527 (1959)
Bogan, A., Jr.: Nuclear Phys. B12, 89 (1969)
Madurga, G.: GIFT. 3/72. Univ. de Barcelona 1972
Boussy, A., Ngo, H., Vinh Mau, N.: IPNO/TH 73-2. Orsay 1973
Sundelin, R.M., Edelstein, R.M., Suzuki, A., Takahashi, K.: Phys. Rev. Letters20, 1198 (1968)
Balashov, V.V., Beliaev, V.B., Eramjian, R.A., Kabachnik, N.M.: Phys. Letters9, 168 (1964)
Überall, H.: Phys. Rev.139B, 1239 (1965)
Hill, L.L., Überall, H.: Nuclear Phys. A190, 341 (1972)
Woitkowska, J., Evseyev, V.S., Kozlowski, T., Mamedov, R.N., Roganov, V.S.: Sov. J. Nuclear Phys.14, 349 (1972)
Plett, M.E., Sobottka, S.E.: Phys. Rev.3C, 1003 (1971)
Krieger, M.H.: Thesis, NEVIS-172. Columbia Univ. 1969
Schröder, W.U.: Thesis, TH Darmstadt 1971
Jahnke, U., Lindenberger, K.H., Röschert, G., Schröder, W.U., Backe, H., Engfer, R., Kankeleit, E., Schneuwly, H., Vuilleumier, J.L., Walter, H.K.: Helv. Phys. Acta45, 49 (1972)
Backe, H., Engfer, R., Jahnke, U., Kankeleit, E., Pearce, R.M., Petitjean, C., Schellenberg, L., Schneuwly, H., Schröder, W.U., Walter, H.K., Zehnder, A.: Nuclear Phys. A189, 472 (1972)
Zehnder, A.: Diplomarbeit. ETH Zürich 1970
Schröder, W.U., Vuilleumier, J.L.: In preparation
Le Couteur, K.J.: in Nuclear reactions, Eds. P.M. Endt and M. Demeur. Amsterdam: North Holland 1959
Petitjean, C., Backe, H., Engfer, R., Jahnke, U., Lindenberger, K.H., Schneuwly, H., Schröder, W.U., Walter, H.K.: Nuclear Phys. A178, 193 (1971)
Backenstoss, G., Charalambus, S., Daniel, H., Hamilton, W.D., Lynen, U., Von der Malsburg, Ch., Poelz, G., Povel, H.P.: Nuclear Phys. A162, 541 (1971)
Pustovalov, G.E.: Soviet Phys. JETP9, 1288 (1959)
Fu, C.Y., Perey, F.G.: ORNL-4765, 1972
Kikuchi, K., Kawai, M.: Nuclear matter and nuclear reactions. Amsterdam: North Holland 1968
Schröder, W.U.: IKDA 73-17. TH Darmstadt 1973
Zatsepina, G.N., Igonin, V.V., Lazareva, L.E., Lepestkin, A.I.: Soviet Phys. JETP17, 1200 (1963)
Glazunow, Yu.Ya., Savin, M.V., Safma, I.N., Fomushkin, E.F., Khokhlov, Yu.A.: Soviet Phys. JETP19, 1284 (1964)
McNeill, K.G., Jury, J.W., Hewitt, J.S.: Canad. J. Phys.48, 950 (1970)
Author information
Authors and Affiliations
Additional information
Part of this work is the subject of a Ph.D. Thesis D 17, Technische Hochschule Darmstadt, by W.U. Schröder.
This work is part of the research programme of the Berlin-Darmstadt-Fribourg-Zürich Collaboration at CERN. The authors would like to express their thanks to Dr. H. Backe, Prof. E. Kankeleit, Dr. C. Petitjean and Dr. H. Schneuwly for their help during the experiments. The kind hospitality of the CERN Nuclear Physics Division is gratefully acknowledged.
This work was supported by the Bundesministerium für Bildung und Wissenschaft.
Rights and permissions
About this article
Cite this article
Schröder, W.U., Jahnke, U., Lindenberger, K.H. et al. Spectra of neutrons from μ capture in thallium, lead and bismuth. Z. Physik 268, 57–64 (1974). https://doi.org/10.1007/BF01670062
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01670062