München 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MP: Fachverband Theoretische und Mathematische Grundlagen der Physik
MP 12: Superheavy bosons
MP 12.2: Vortrag
Donnerstag, 21. März 2019, 15:05–15:20, HS 23
superheavy boson and prompt- neutron emission — Genevieve Mouze1 and •Jean-Francois Comanducci2 — 1Universite de Nice,06108 Nice cedex 2, France — 2LE- AIEA 4 Quai Antoine Premier, 98000 Monaco
Terrels law of 1957 on prompt-neutron emission shows that the distribution of the number of emitted neutrons has a width of 2.438 neutrons at half-maximum, as if a gauge boson having a lifetime of 0.17 yoctosecond had intervened in the fission reaction: this lifetime, shorter than that of the W and Z bosons, is pointing to a very heavy mass. But in 1962 Terrell discovered that prompt neutrons are emitted only by products of mass greater than A= 82 and A=126: it means that during 0.17 ys the fissioning nucleus consists only of neutrons, and consequently that W+ and W- bosons, created by the superheavy boson, necessarily intervened. Thus the new boson has charge zero and mass at least 160.9 Gev/c2. Coincidence experiments made by Durell in 1996 have shown that formation of a product requires the emission of a number positive or nil of neutrons. Clearly, neutron emission results from the uncertainty law and not from evaporation.