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Precise intrinsic quadrupole and hexadecapole moments of 233 > 234 > 235 -238 u have been determined from muonic K, L, M, and TV x rays. For 233 ' 235 u seven E2 matrix elements were independently determined. These E2 matrix elements are in good agreement with the adiabatic rotational model; this agreement is further improved if a correction for &K = 1 band mixing is included. The measured hexadecapole moments are in good agreement with shellcorrection calculations and Hartree-Fock calculations.

TX 75237.Permanent address: Los Alamos National Laboratory, Los Alamos, NM 87545. Present address: EGRzG/EM, 130 Robin Hill Rd. , Goleta, CA 93116. for pion energies between 150 and 300 MeV. The energy dependences of the absorption cross sections for energies above 315 MeV for heavy nuclei are unknown.Early models of pion absorption emphasized quasi-

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