Probing Lepton Number Violating Interactions with Beta-beams

Agarwalla, Sanjib Kumar; Rakshit, Subhendu; Raychaudhuri, Amitava

Probing Lepton Number Violating Interactions with Beta-beams

Authors

Agarwalla, Sanjib Kumar

Rakshit, Subhendu

Raychaudhuri, Amitava

Description

We show that a detector placed near a beta-beam storage ring can probe lepton number violating interactions, as predicted by supersymmetric theories with R-parity non-conservation. In the presence of such interactions, nu_tau can be produced during beta-decay leading to tau leptons through weak interactions. Alternatively, electron neutrinos from beta-decay of radioactive ions can produce tau leptons in a nearby detector through these interactions. The muons from the decay of these tau leptons can be readily identified in a small iron calorimeter detector and will signal violation of R-parity.
To be published in Phys. Lett. B. Background analysis redone with a detector simulation study. 19 pages