Hamburg 2016 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 68: Suche nach Supersymmetrie III (Hadronische, Tau, Photon Endzustände)

T 68.2: Vortrag

Mittwoch, 2. März 2016, 17:00–17:15, VMP5 HS B2

Search for electroweak production of supersymmetric particles with photonic final states at CMS — Lutz Feld, •Johannes Lange, and Johannes Schulz — 1. Physikalisches Institut B, RWTH Aachen University

Supersymmetry (SUSY) is a prominent extension of the standard model of particle physics, providing possible solutions to the hierarchy problem, unification of the coupling constants and the existence of dark matter. In the context of gauge mediated SUSY breaking the next-to-lightest SUSY particle (NLSP) is the lightest neutralino, while the gravitino is the lightest SUSY particle. For a bino-like mixture, the NLSP predominantly decays to a photon and a gravitino, the latter leaving the detector undetected.

This analysis focuses on final states containing at least one photon, missing transverse energy and low hadronic activity, thus increasing the sensitivity to electroweak gaugino production and complementing searches requiring the presence of jets. The main background contributions are estimated using a template fit of the background simulations to the data in a control region.

The search has already been carried out using a special parked data set recorded by the CMS detector at √s=8 TeV and an integrated luminosity of 7.4 fb⁻¹. We present the current status of the analysis for the LHC RunII at √s=13 TeV.