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arXiv · 1005.1802

Ultrarelativistic sneutrinos at the LHC and sneutrino-antisneutrino oscillation

Dilip Kumar Ghosh·Tuomas Honkavaara·Katri Huitu·Sourov Roy
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Abstract

Sneutrino-antisneutrino oscillation can be a very useful probe to look for signatures of lepton number violation ($ΔL = 2$) at the LHC. Here, we discuss the effect of the boost factor $γ$ and the travelling distance $L$ on the probability of the oscillation. We demonstrate that these two parameters can significantly alter the probability of the oscillation when the sneutrinos are ultrarelativistic and have a very small total decay width. We propose a scenario where these requirements are fulfilled and which produces interesting signals at the LHC even for a mass splitting $Δm$ as small as $10^{-14}$ GeV between the sneutrino mass eigenstates.

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Dilip Kumar Ghosh, Tuomas Honkavaara, Katri Huitu, Sourov Roy. 2010-12-14. Ultrarelativistic sneutrinos at the LHC and sneutrino-antisneutrino oscillation. https://doi.org/10.1103/physrevd.82.115006

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