1. Beyond the Higgs wan ahmad tajuddin wan abdullah
kumpulan fizik tenaga tinggi
jabatan fizik universiti malaya

2. A Higgs-compatible boson has been observed at the LHC at CERN.

3. 1 Higgs in 1010 events expected
Look at possible decay products in event
Reconstruct parent mass
Look for unaccounted enhancement

4. mH ~ 125 GeV/c2

5. Role of the Higgs in particle physics
Standard model of particle physics
Role of Higgs

6. Standard Model of particle physics

7. Problem of mass
Interactions described by renormalizable gauge field theories
=> fermions and intermediary gauge bosons massless
Weak interaction short range => massive intermediary gayge bosons

8. Mass through spontaneous symmetry-breaking
[ Electroweak unification]
=> Higgs field
Kibble, Guralnik, Hagen, Englert, Brout, Higgs

9. A particle acquiring mass as it traverses the Higgs field
A Higg particle

10. Current challenges in particle physics and cosmology
Phenomenology of the Standard Model
- strong nuclear force
- flavours
- GUTs
Supersymmetry
- does it exist?
- role in unifying gravity with other forces
Dark matter and dark energy

11. Standard Model of cosmology
microwave background
radiation

12. Strong force – quantum chromodynamics
fragmentation
exotic states

13. Flavours 3 generations? Leptonic sector – massive neutrinos
Weak eigenstates not energy eigenstates
Leptonic sector – massive neutrinos
- Majorana or Dirac?
3 generations?

14. CP (charge-parity) violation –
matter-antimatter asymmetry

15. Hierarchy problem
supersymmetry?
extra dimensions?

16. Grand Unification - how is QCD unified w electroweak?
gauge bosons, leptoquarks
proton decay

17. Supersymmetry Supergravity – unification with gravity Superpartners?
GUT
Gravity from fields

18. Theories of everything
Extra dimensions
Superstrings
QCD + EW from curvature

19. Dark matter – non-baryonic – stable neutrinos? – flavours
superparticles?
from galaxy rotation;
cosmology

20. Dark energy
Accelerated expansion – from supernova measurements

21. Dark energy
what?

22. Efforts in experimental particle physics by Malaysia
Energy frontier
LHC
Intensity frontier
JPARC Belle SuperKEKB
Cosmic frontier

23. ZEUS High energy electron on proton
- ended 2007, data analysis still ongoing
electronics – read-out control
hadron caloimetry
fragmentation – baryons, strange correlations
pentaquarks
particle production – exlusive, diffractive

24. Data MC
exclusive Y'

25. CMS TeV proton on proton - running electromagnetic calorimetry grid
jets

26. Belle II High intensity B factory - operating 2014 drift chamber
muon detector
Monte Carlo
cloud
rare events - exclusive

27. COMET High intensity muon beam - initial stages Monte Carlo
flavour-changing muons

28. Come and join us! Terima kasih