Search for a dileptonic edge with CMS

TL;DR

This paper reports a search for a specific kinematic feature in dilepton events using CMS data, aiming to find signs of new physics beyond the Standard Model.

Contribution

It introduces a search for a dileptonic edge in invariant mass distributions using CMS data at 8 TeV, with improved background estimation methods.

Findings

No significant signal observed.

Results consistent with background-only hypothesis.

Achieved 5-10% background uncertainty.

Abstract

We present a search for a kinematic edge in the invariant mass distribution of two opposite-sign same-flavor leptons, in final states with jets and missing transverse energy. The analysis makes use of $19.4$ fb$^{-1}$ proton-proton collision data at $\sqrt{s} = 8$ TeV. The data have been recorded with the CMS experiment. Complementary methods have been used for the background estimation, which when combined achieve a total uncertainty of $5\%$ ($10\%$) for leptons in the central (forward) rapidity of the detector. We do not observe a statistically significant signal and the results are consistent with the background-only hypothesis.