Measurement of the average life time associated with the nuclear capture of negative muons in Fe.

Tassone G., Occhiuto L., Schioppa M.
  Mercoledì 14/09   13:30 - 18:30   Aula C - Maria Gaetana Agnesi   VII - Didattica e storia della fisica   Presentazione
This experiment was conducted during the Nuclear and Subnuclear Laboratory at the University of Calabria in the academic year 2021-22. Once negative muons have been reduced at the rest state in a material medium, they have a great chance of being captured by the atom forming a mu-mesic atom. Due to its high mass with respect the electron one, the muon will move around the nucleus with a radius 200 times smaller than that of the electron. If the nucleus has a high number of mass, the muon will spend part of its time inside the nucleus where it can be captured by a proton and give rise to a weak interaction with the production of a neutron and an anti neutrino of the muon . By measuring the time between the arrival of a low-energy muon and the emission of the decay electron, it is possible to extract the average nuclear capture time. A theoretical interpretation of the result obtained is also provided in this communication.