1. Sussex Experimental Particle Physics Group
Alessandro Cerri Convenor of MSc Physics

2. Sussex Experimental Particle Physics Group
10 faculty members, 9 researchers, ca 35 students from undergraduate to PhD
Our research aims to answer some of the fundamental questions in modern physics:
What is the origin of mass?
Why is there more matter than antimatter in the universe?
What is the nature of the neutrino?
What is physics like, beyond the Standard Model?

3. ATLAS One of the big experiments at the Large Hadron Collider at CERN
2012 discovery of the Higgs boson; now in Run 2
Some of the questions ATLAS seeks to address:
What are the properties of the Higgs boson? How do they relate to the origin of mass?
Do forces become unified at very high energies?
Are there any extra dimensions in space?

4. ATLAS at Sussex Search for Supersymmetry signals
Flavour/B physics: rare decays
Boosted jets
Trigger system
Upgrade of the ATLAS detector
Antonella De Santo, Fabrizio Salvatore, Alex Cerri, Iacopo Vivarelli, Lily Asquith

5. Neutrino physics SNO+ experiment:
2 km underground at Sudbury mine in Canada
Neutrino-less double beta decay
Is the neutrino its own antiparticle (Majorana or Dirac)?
Rich programme of neutrino and solar physics
Neutrino oscillation experiments: NOnA and DUNE:
Beams of neutrinos from Fermilab, Chicago
NOnA: 810 km to northern Minnesota
DUNE: 1300 km to South Dakota
Which neutrino mass state is the heaviest?
Is there CP violation amongst neutrinos?

6. Neutrino physics at Sussex
SNO+ experiment:
Calibration with light (LEDs and laser) and with radioactive sources
Data quality, run selection and data processing
Sensitivity studies
Simon Peeters, Jeff Hartnell, Lisa Falk
NOnA experiment:
Anti-neutrinos
Data analysis
Jeff Hartnell
DUNE experiment:
Trigger and data acquisition
Calibration
Sensitivity studies
Jeff H, Simon P, Lisa F, Clark G

7. Neutron Electric Dipole Moment (nEDM)
Why is the universe made up of matter and almost no antimatter?
Electric dipole moments: sensitive probes of T-violation
A classic experiment – one of the most precise in physics
Carried out at Paul Scherrer Institute, Switzerland
Sussex holds world’s best measurement to date

8. Neutron Electric Dipole Moment (nEDM) at Sussex
High-precision magnetometry
Evaluation of systematic errors
Detailed simulation, modelling & analysis
Design for next-generation experiment
Philip Harris, Clark Griffith