Transient Joule- and (ac) Josephson-like photon emission in one- and two- nucleon tunneling processes between superfluid nuclei: Blackbody and coherent spectral functions
R. A. Broglia, F. Barranco, G. Potel, E. Vigezzi
DOI 10.1103/PhysRevC.105.L061602 · Physical Review C
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Abstract
Effectively charged neutrons involved in one- and two-nucleon tunneling processes in heavy-ion collisions between superfluid nuclei are expected to emit photons. Although the centroid, width, and integrated energy area characterizing the associated γ-strength functions are rather similar, the corresponding line shapes reflect the thermal equilibrated-like character of the quasiparticle transfer (1n channel, blackbody spectral functional dependence) and the quantal coherent character of the Cooper pair transfer (2n channel, and Gaussian functional dependence), respectively. The predicted angular distributions, polarizations, and analyzing powers provide further insight into the profoundly different physics to be found at the basis of what can be considered transient Joule-like and (ac) Josephson-like nuclear processes.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.2 | Pressure not reported | unknown |
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