# IOP 2014 Joint HEPP & APP Group Meeting

7-9 April 2014
Royal Holloway, University of London
Europe/London timezone
Institute of Physics 2014 Joint High Energy Particle Physics and Astro Particle Physics Groups Annual Meeting

## Searching for supersymmetry with compressed mass spectra at CMS

8 Apr 2014, 13:15
15m
Room C (Windsor Building)

### Room C

#### Windsor Building

contributed talk The Energy Frontier Programme

### Speaker

Robyn Lucas (Imperial College Sci., Tech. & Med. (GB))

### Description

Supersymmetry scenarios in which squarks, particularly in the third generation, are close in mass to the lightest supersymmetric particle are well motivated and offer a possibility for hidden, natural SUSY. Traditional searches are insensitive to these compressed mass spectra scenarios due to the very soft decay products. A search for light top squarks close in mass to the LSP at the CMS detector in 19.7 fb$^{-1}$ of pp collisions at $\sqrt{s}$= 8 TeV is presented using events with one high p$_{T}$ jet and a large transverse energy imbalance. By using monojet events to search for Initial State Radiation produced in association with top squarks, sensitivity to very compressed spectra is attained.

### Primary author

Robyn Lucas (Imperial College Sci., Tech. & Med. (GB))

 Slides