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Publications [#60212] of Peter K. Haff

Papers Published

1. Vogel, P. and Haff, P.K. and Akylas, V. and Winther, A., Muon capture in atoms, crystals and molecules, Nucl. Phys. A (Netherlands), vol. A254 no. 2 (1975), pp. 445 - 79 [0375-9474(75)90230-4]
   (last updated on 2007/04/10)

   Abstract:
   The slowing down and capture of negative muons in solids is discussed on the basis of classical equations of motion where the energy dissipation is described in terms of fractional forces. Transport equations determining the energy distribution of the muons in the target are formulated and solved for various models. Using a statistical model of the atom it is shown that the muons are captured typically at energies of a few tens of electron volts, that the angular momentum distribution of the muons at capture is almost statistical, and that this distribution is not expected to be qualitatively changed by the subsequent cascade to the tightly bound orbits. In mixtures of atoms with atomic numbers Z₁ and Z₂ the capture ratio is to a good approximation proportional to the atomic concentration and, in the statistical model, proportional to (Z₁/Z₂)^7/6

   Keywords:
   energy loss of particles;mesic and muonic atoms;muon capture;