# Is it SUSY? -first steps after an LHC discovery

- Institution: CERN
- Department: CERN Colloquium
- Speaker: Joseph D. LYKKEN
- Year: 2008
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3018138)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

A missing energy discovery is possible at the LHC in the first year of running. The origin of such a signal could be any of a huge number of models of supersymmetry, or non-supersymmetric models with extra dimensions or "little Higgs".

Recently we have developed a realistic strategy to rapidly narrow the list of candidate theories at, or close to, the moment of discovery. The strategy is based on robust ratios of inclusive counts of simple physics objects. We studied specific cases showing discrimination of look- alike models in simulated data sets that are at least 10 to 100 times smaller than used in previous studies. We discriminate supersymmetry models from non-supersymmetric look-alikes with only 100 pb-1 of simulated data, using combinations of observables that trace back to differences in spin..

0:00:00 Slide 1

0:02:58 Slide 2

0:05:55 Slide 3

0:11:49 Slide 4

0:17:43 Slide 5

0:23:37 Slide 6

0:29:32 Slide 7

0:35:26 Slide 8

0:41:20 Slide 9

0:47:14 Slide 10

0:53:08 Slide 11

## Lectures

1. [Is it SUSY? -first steps after an LHC discovery](https://invisiblenetwork.ai/learn/cern/3018138/e7e32acbb409), 1 h (CERN's player)