Faculty of Mathematics, Physics
and Informatics
Comenius University Bratislava

Seminar of Theoretical Physics - Amina Khatun (19.10.2021)

Tuesday 19.10.2021, at 14:00 hod., Lecture room F2/125

08. 10. 2021 20.33 hod.

Amina Khatun:
Exploring long-range force of Lµ − Lτ Symmetry using Atmospheric Neutrino Experiment

Abstract:
Flavor-dependent long-range leptonic force mediated by an ultralight and neutral gauge boson $Z'$ associated with $L_\mu -L_\tau$ symmetry constitutes a minimal extension of the Standard Model. We study the physical consequences of such long-range force in the oscillation of terrestrial neutrinos, particularly in $\nu_\mu$ survival channel. We show that the proposed atmospheric neutrino detector ICAL will be able to put tight constraints on such long-range force due to its capabilities of detecting neutrinos and antineutrinos separately with the wide ranges of energies and baselines. We also study the possible impact of this long-range force in the measurement of atmospheric neutrino oscillation parameters and mass ordering at the ICAL.