About the influence of space-time separations between sources of α-particle emission in the reaction p+11B→3α on interference phenomena in their spectra

On the Space-Time Description of Interference Phenomena in Nuclear Reactions with Three Particles in the Final Channel

“…The obtained results (18)-(20), with the incoherent sum P 0 , the interference term P 1 and the phase , do evidently generalize the results, obtained somewhat earlier by us in [3,8] for collisions with two-particle channels. Comparing these results with that obtained in a stationary model [1,2], the latter ones are confirmed by the present self-consistent space-time approach in the limit E << Z . The same conclusion is valid for the cases in which two intermediate excited nuclei are formed, i.e.…”

“…They are the clear generalization of the results for nucleon-nucleus and nucleus-nucleus collisions with two-particle channels, presented in [7,8], and can be easily generalized for the cases in which two intermediate excited (compound) nuclei are formed. Moreover in the limit E/ Z 0 they factually pass to the correspondent stationary-model results as presented in [1,2].…”

“…We shall study the interference phenomena when two particles are simultaneously detected (in a sense that will be specified below) in the nuclear reactions with three nuclei (particles) in the final channel. Earlier they have been considered by us for two-particle channels in the stationary theory (see, for instance, [1,2]) and in the space-time description (see, for example, [3]).…”

Some Phenomena Theoretically Predicted and Explained by the Time Analysis of the Experimental Data on Nuclear Processes

“…A number of perspectives in the revealing of various temporal effects is being opened by the study of the two-and three-particle interference phenomena, caused by the spatially and temporally separated emissions of several identical light nuclei in the final channels, 41,42 and even for simple two-particle channels in the labo-ratory system, caused by the spatially and temporally separated emissions of final particles in the nonresonant (prompt) and delayed one-resonance compound-nucleus processes. 43 Finally, a striking perspective of realistic age evaluations for the stars, planets, and the whole Universe had been opened in Refs.…”

Can α–α correlations be used to measure the size of12C excited states?

“…However, in the case of the 8 Be ground state, the lifetime is ∼10 −16 s. This long lifetime might result in the loss of this Coulomb imprint. Studies of the reaction p + 11 B → α + 8 Be(2 + ) show that for reactions involving the production of the short-lived 8 Be excited state, the spacetime evolution leaves an important imprint on the decay of 12 C [17].…”