“Light majoron cold dark matter from topological defects and the formation of boson stars”
In this seminar I will show that for a relatively light majoron ( << 100 eV) non-thermal production from topological defects
is an efficient production mechanism. Taking the type I seesaw as benchmark scheme, I will estimate the primordial majoron
abundance and determine the required parameter choices where it can account for the observed cosmological dark matter.
Possible direct detection of light majorons with future experiments such as PTOLEMY and the formation of boson stars from
the majoron dark matter will be also discussed.
Fecha: Jueves 30 de mayo de 2019
Lugar: Seminario de Física Teórica