Phenomenological Implications of TeV Scale Gravity Theories
Manuel Ettengruber
University of Munich
Mardi 28/05/2024, 14:00-15:00
Salle Claude Itzykson, Bât. 774, Orme des Merisiers
The framework of TeV scale gravity theories was originally invented to solve the hierarchy problem. Two specific models in which the scale of quantum gravity gets lowered by the existence of many additional light states are the ADD model and the Many Species Theory. In this talk, I want to present how small neutrino masses can be generated in this infrared approach and how this modifies the oscillation pattern. Then I present how current neutrino data can be used to give a lower bound on the number of additional species. Moreover, I show how to get an upper bound from axion physics. These results give for the first time a theoretically restricted parameter space of the Many Species Theory that can be tested by current and future experiments. Another candidate that can be affected by oscillations caused by these models is the neutron. I show how within the ADD model neutrons would oscillate into their Kaluza-Klein partners and how current neutron experiments give competitive bounds on the parameters of the ADD model.


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Contact : Gabriele RIGO

 

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