Search for narrow-peak structure in the three-photon spectrum from 6-MeV/nucleon U+Th, U+U, and Th+Th collisions
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{t...
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| Veröffentlicht in: | Physical review. C, Nuclear physics Nuclear physics, 1991-12, Vol.44 (6), p.2584-2587 |
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| container_title | Physical review. C, Nuclear physics |
| container_volume | 44 |
| creator | Danzmann, K Meyerhof, WE Belkacem, A Montenegro, EC Dillard, E Hülskötter, HP Guardala, N Spooner, DW Kotlinski, B Cline, D Kavka, A Beausang, CW Burde, J McDonald, RJ Macchiavelli, AO Rude, BS Molitoris, JD |
| description | 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{times}10{sup {minus}28} cm{sup 2} averaged over a target thickness of 1 mg/cm{sup 2}. |
| doi_str_mv | 10.1103/PhysRevC.44.2584 |
| format | Article |
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| ispartof | Physical review. C, Nuclear physics, 1991-12, Vol.44 (6), p.2584-2587 |
| issn | 0556-2813 1089-490X |
| language | eng |
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| source | American Physical Society Journals |
| subjects | 663450 - Heavy-Ion-Induced Reactions & Scattering- (1992-) CHARGED-PARTICLE REACTIONS CROSS SECTIONS ENERGY RANGE GAMMA SPECTRA GEV RANGE GEV RANGE 01-10 HEAVY ION REACTIONS MULTI-PHOTON PROCESSES NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEAR REACTIONS SPECTRA TARGETS THORIUM 232 REACTIONS THORIUM 232 TARGET URANIUM 238 REACTIONS URANIUM 238 TARGET |
| title | 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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