Energy spectra and asymmetries of neutrons emitted after muon capture |
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Authors: | T. Kozlowski W. Bertl H.P. Povel U. sennhauser H.K. Walter A. Zglinski R. Engfer CH. Grab E.A. Hermes H.P. Isaak A. Van Der Schaaf J. Van Der Pluym W.H.A. Hesselink |
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Affiliation: | Institut für Mittelenergiephysik, ETHZ, 5234 Villigen, Switzerland;Physik-Institut der Universität Zürich, 8001 Zurich, Switzerland;Natuurkundig Laboratorium van de Vrije Universiteit, 1081 HV Amsterdam, The Netherlands |
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Abstract: | Inclusive energy spectra and the energy dependence of the asymmetry parameter have been measured for neutrons emitted after muon capture in O, Si, Ca and Pb. In addition a neutron-neutron coincidence measurement has been performed for Ca. The results of these measurements confirm the exponential shape of the energy spectra and the positive asymmetry observed by Sundelin and Edelstein. The observation of neutrons with energies above 50 MeV and the observation of simultaneous emission of two high-energy neutrons suggest the importance of short-range nucleonnucleon correlations in this process. |
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Keywords: | Nuckear Reactions |
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