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Determination of the 2p-1s transition energy and strong interaction shift in pionic hydrogen using crystal diffraction

Forster, A. and Bovet, E. and Gimlett, J. and Henrikson, H. E. and Murray, D. and Powers, R. J. and Vogel, P. and Boehm, F. and Kunselman, R. and Lee, P. L. (1983) Determination of the 2p-1s transition energy and strong interaction shift in pionic hydrogen using crystal diffraction. Physical Review C, 28 (6). pp. 2374-2379. ISSN 0556-2813. http://resolver.caltech.edu/CaltechAUTHORS:FORprc83

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Abstract

The 2p-1s atomic transition in pionic hydrogen has been studied with the help of a point-focusing graphite diffraction spectrometer. The transition energy was measured to be E(2p-1s)=2433.5±1.7 eV. From this result a strong interaction shift of -3.9±1.7 eV was derived. The Kα x-ray yield in the 2.7 atm hydrogen target at 40 K was found to be 0.025±0.013 per stopped pion.


Item Type:Article
Additional Information:©1983 The American Physical Society. Received 29 July 1983. Thanks are due to the staff of LAMPF for generous technical support and assistance. The help of J. Markey during the experiment is gratefully acknowledged. One of us (A.F.) wishes to thank Alexander von Humboldt Foundation for financial support. This work was supported by the US DOE under Contract No. DEAT-0381-ER40002.
Record Number:CaltechAUTHORS:FORprc83
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:FORprc83
Alternative URL:http://dx.doi.org/10.1103/PhysRevC.28.2374
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9893
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:26 Mar 2008
Last Modified:26 Dec 2012 09:54

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