Search for n-n oscillation in oxygen

T. W. Jones, R. M. Bionta, G. Blewitt, C. B. Bratton, B. G. Cortez, S. Errede, G. W. Foster, W. Gajewski, K. S. Ganezer, M. Goldhaber, T. J. Haines, D. Kielczewska, W. R. Kropp, J. G. Learned, E. Lehmann, J. M. LoSecco, H. S. Park, F. Reines, J. Schultz, E. ShumardD. Sinclair, H. W. Sobel, J. L. Stone, L. R. Sulak, R. Svoboda, J. C. Van Der Velde, C. Wuest

Research output: Contribution to journalArticlepeer-review


This Letter reports the results of a search for neutron-antineutron transitions in oxygen, using a water Cherenkov detector of fiducial mass 3300 metric tons located 1570 m (water equivalent) underground. Two independent methods yield 90% -confidence lower limits of 1.7 × 1031 and 2.4 × 1031 yr, respectively, for the partial lifetime of this process. According to recent calculations the latter result corresponds to a lower limit in the range 2.7 × 107 to 1.1 × 108 sec for the free-neutron oscillation time.

Original languageEnglish (US)
Pages (from-to)720-723
Number of pages4
JournalPhysical review letters
Issue number9
StatePublished - 1984
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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