Energetic protons and deuterons emitted following μ capture by He3 nuclei

W. J. Cummings, G. E. Dodge, S. S. Hanna, B. H. King, S. E. Kuhn, Y. M. Shin, R. Helmer, R. B. Schubank, N. R. Stevenson, U. Wienands, Y. K. Lee, G. R. Mason, B. E. King, K. S. Chung, J. M. Lee, and D. P. Rosenzweig
Phys. Rev. Lett. 68, 293 – Published 20 January 1992
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Abstract

Spectra of energetic protons and deuterons emitted following negative muon capture from rest in He3 have been measured for the first time. Significant capture strength is observed at high energy transfers (mμ-Eν>60 MeV) for the two-body and three-body breakup channels, indicative of the importance of nucleon-nucleon correlations and meson exchange currents in the capture process. A simple plane wave impulse approximation calculation reproduces the proton spectrum reasonably well, but underpredicts the deuteron rate at the highest energies by a large factor.

  • Received 7 October 1991

DOI:https://doi.org/10.1103/PhysRevLett.68.293

©1992 American Physical Society

Authors & Affiliations

W. J. Cummings, G. E. Dodge, S. S. Hanna, B. H. King, S. E. Kuhn, Y. M. Shin, R. Helmer, R. B. Schubank, N. R. Stevenson, U. Wienands, Y. K. Lee, G. R. Mason, B. E. King, K. S. Chung, J. M. Lee, and D. P. Rosenzweig

  • Stanford University, Stanford, California 94305
  • University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 0W0
  • TRIUMF, Vancouver, British Columbia, Canada V6T 2A3
  • The Johns Hopkins University, Baltimore, Maryland 21218
  • University of Victoria, Victoria, British Columbia, Canada V8W 3P6
  • Simon Fraser University, Burnaby, British Columbia, Canada V5A 1S6
  • Yonsei University, Seoul 120-749, Korea
  • University of Washington, Seattle, Washington 98195

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Vol. 68, Iss. 3 — 20 January 1992

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