23-27 October 2017
America/Argentina/Buenos_Aires timezone

Searching for SUSY at the LHC: promising signals for left sneutrino LSP and other possibilities

25 Oct 2017, 11:00


ICAS Campus Miguelete, 25 de Mayo y Francia. C.P.: 1650. San Martín, Provincia de Buenos Aires, Argentina.


Daniel Lopz Fogliani (UBA, Buenos Aires)


Supersymmetric extensions of the standard model provides a solution the the hierarchy problem and the possibility to give observable signals at the LHC. When R-parity is broken and the right-handed neutrinos are included in the spectrum many interesting interpretations are possible. After a brief introduction of the simplest model including many useful interpretations and desirable properties, we are going to discuss possible interesting signals in some particular cases. For instance for a left sneutrino LSP, there are two dominant channels, direct production via a Z boson, or production via a W± decaying into a left sneutrino and a left slepton next-to-LSP (NLSP), with the latter decaying into another left sneutrino plus a very soft W± subproduct. From the decay of a pair of left sneutrinos LSPs of any family, a diphoton signal plus missing transverse energy (MET) from neutrinos can be present. In addition, in the case of a pair of tau left sneutrinos LSPs, given the large value of the tau Yukawa coupling, diphoton plus leptons and/or multileptons can appear.

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