Search for narrow-peak structure in the three-photon spectrum from 
6-MeV/nucleon U+Th, U+U, and Th+Th collisions

Danzmann, Karsten; Meyerhof, W. E.; Belkacem, A.; Montenegro, E. C.; Dillard, E.; Hülskötter, H. P.; Guardala, N.; Spooner, D. W.; Kotlinski, B.; Cline, D.; Kavka, A.; Beausang, C. W.; Burde, J.; McDonald, R. J.; Macchiavelli, A. O.; Rude, B. S.; Molitoris, J. D.

doi:10.1103/PhysRevC.44.2584

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Search for narrow-peak structure in the three-photon spectrum from 6-MeV/nucleon U+Th, U+U, and Th+Th collisions

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Danzmann, Karsten
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Citation

Danzmann, K., Meyerhof, W. E., Belkacem, A., Montenegro, E. C., Dillard, E., Hülskötter, H. P., et al. (1991). Search for narrow-peak structure in the three-photon spectrum from 6-MeV/nucleon U+Th, U+U, and Th+Th collisions. Physical Review C, 44(6), 2584-2587. doi:10.1103/PhysRevC.44.2584.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-5CB2-B

Abstract

We have searched for three-photon decays produced in 6-MeV/nucleon U+Th, Th+Th, and U+U collisions. We see no evidence for narrow lines corresponding to the electron-positron lines seen by others: in the summed-energy region between 1.2 and 2.0 MeV, we set an upper limit for the cross section of 3×10-28 cm2 averaged over a target thickness of 1 mg/cm2.