Sneutrino-induced like sign dilepton signal with conserved R-parity

Details Sneutrino-induced like sign dilepton signal with conserved R-parity Sneutrino-induced like sign dilepton signal with conserved R-parity

2001-02-14

arxiv.org/abs/hep-ph/0102175v2

Phys.Rev. D64 (2001) 115006

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 14 Figures. Section about LSD at LHC and TEVATRON added. Previous Title "Single sneutrino production and the wrong c

Scientific paper

10.1103/PhysRevD.64.115006

Lepton number violation could be manifest in the sneutrino sector of supersymmetric extensions of the standard model with conserved R-parity. Then sneutrinos decay partly into the ``wrong sign charged lepton'' final state, if kinematically accessible. In sneutrino pair production or associated single sneutrino production, the signal then is a like sign dilepton final state. Under favourable circumstances, such a signal could be visible at the LHC or a next generation linear collider for a relative sneutrino mass-splitting of order ${\cal O}(0.001)$ and sneutrino width of order ${\cal O}$(1 GeV). On the other hand, the like sign dilepton event rate at the TEVATRON is probably too small to be observable.

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