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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik
MP 12: Superheavy bosons
MP 12.1: Vortrag
Donnerstag, 21. März 2019, 14:50–15:05, HS 23
superheavy boson and first step of fission — genevieve mouze1 and •Jean-Francois Comanducci2 — 1universite de nice,06108 Nice cedex 2, france — 2LE- AIEA 4 Quai Antoine Premier, 98000 Monaco
In the fission of 258Fm, the pair 132Sn- 126Sn proves that the 50 Ar cluster has interacted with the bare 82- proton phase of the 208Pb core, after having excited the four- phonon level of the oscillator present in the core. But how can two tin nuclei be formed, if 100 u-quarks are not changed into 100 d-quarks, and then 100 d-quarks are not changed into the 50 u-quarks of the two tin nuclei ? This proves not only that a W+ and a W- intervene, but also that a new heavy boson has created the W-boson pair. Clearly, this boson must have charge 0 and mass at least 160.9 GeV/c2. Its lifetime, 0.17 yoctosecond, can be deduced from the width of the mass distribution of the unique product formed at the highest total kinetic energy in asymmetric cold fission. Important is the four - phonon level, now proved thanks to a reinterpretation of the alpha-neutron coincidences of H. Han et al. of 1988.