[W26] Lorenzo Calibbi: Neutron-Antineutron Oscillations as a Probe of Supersymmetry Beyond the LHC

Wednesday 13 July 2016 15.00 UTC

Q&A at Google+

Neutron-Antineutron Oscillations as a Probe of Supersymmetry Beyond the LHC

Lorenzo Calibbi, Institute of Theoretical Physics, Chinese Academy of Sciences (China)

Joel Jones-Perez, PUCP


In this seminar, I will present a study of baryon number violation in R-parity violating supersymmetry with focus on Delta B=2 processes which allow neutron-antineutron oscillations. I will provide prospects for going beyond the present limits by means of a new search for such process. The motivation is the recently proposed neutron-antineutron oscillation experiment at the European Spallation Source in Lund, which is projected to be able to improve the current bound by three orders of magnitude.
Various processes giving rise to baryon number violation are considered and the corresponding simplified models (including only the relevant superpartners and couplings) are defined and discussed. In terms of these models, I will show the exclusion limits from LHC searches as well as from searches for flavor transitions, CP violation and di-nucleon decays. For certain regions of parameter space, the proposed neutron-antineutron experiment has a reach that goes beyond all other experiments, as it can probe gluino and squark masses in the multi-TeV range.

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