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Published July 4, 1966 | public
Journal Article Open

Pseudoquadrupole shift of gamma resonance spectra

Abstract

In most recoilless gamma-ray resonance experiments the magnetic-dipole and electric-quadrupole hyperfine interaction do not cause any shift of the center of gravity of the velocity spectrum. This is usually related to the fact that the trace of the hyperfine-interaction Hamiltonian is zero. Nevertheless a large shift can be caused under proper conditions by a magnetic hyperfine interaction in second order, the so-called "pseudoquadrupole" interaction.(1) This paper reports the first observation of the pseudoquadrupole shift of gamma lines.(2)

Additional Information

© 1966 American Institute of Physics. Received 16 May 1966. It is a pleasure to acknowledge fruitful discussions with Dr. S. Hufner, Dr. P. Kienle, and Dr. H. Eicher. We would also like to thank Dr. U. Zahn for help in preparing the chloride crystals. This work was performed under the auspices of the U.S. Atomic Energy Commission. Prepared under Contract No. AT(04-3)-63 for the San Francisco Operations Office, U. S. Atomic Energy Commission.

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Created:
August 21, 2023
Modified:
October 16, 2023