Correlated two-photon lines from 6-MeV/nucleon U+Th, U+U, and Th+Th collisions

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

doi:10.1103/PhysRevLett.62.2353

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Correlated two-photon lines from 6-MeV/nucleon U+Th, U+U, and Th+Th collisions

Danzmann, K., Meyerhof, W. E., Montenegro, E. C., Dillard, E., Hülskötter, H. P., Guardala, N., et al. (1989). Correlated two-photon lines from 6-MeV/nucleon U+Th, U+U, and Th+Th collisions. Physical Review Letters, 62(20), 2353-2356. doi:10.1103/PhysRevLett.62.2353.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-5D2C-2 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0013-5D2D-F

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Danzmann, Karsten¹, Author
Meyerhof, W. E., Author
Montenegro, E. C., Author
Dillard, E., Author
Hülskötter, H. P., Author
Guardala, N., Author
Spooner, D. W., Author
Kotlinski, B., Author
Cline, D., Author
Kavka, A., Author
Beausang, C. W., Author
Burde, J., Author
Deleplanque, M. A., Author
Diamond, R. M., Author
McDonald, R. J., Author
Macchiavelli, A. O., Author
Rude, B. S., Author
Stephens, F. S., Author
Molitoris, J. D., Author

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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010

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Abstract: We find that narrow lines at 1043 and 1062 keV in the summed-energy, 180°-correlated two-photon spectrum from ≊6-MeV/nucleon U+Th collisions can be produced by cascades from high-spin states (32+) in 238U. We see no evidence for narrow two-photon lines in U+Th, Th+Th, and U+U collisions 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 6×10-31 cm2 averaged over a target thickness of 1 mg/cm2.

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Dates: Date issued: 1989-05

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Identifiers: eDoc: 372213
URI: http://link.aps.org/abstract/PRL/v62/p2353
DOI: 10.1103/PhysRevLett.62.2353

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Title: Physical Review Letters

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Pages: - Volume / Issue: 62 (20) Sequence Number: - Start / End Page: 2353 - 2356 Identifier: ISSN: 1079-7114