1. Studying High energy processes with CalcHep & LanHep Safinaz R. Abdel Rahman Center of Theoretical Physics – El Azhar University. Egypt Bogoliubov Laboratory of Theoretical Physics JINR -Dubna -Russia Supervision A.Gladyshev – A. Bednyakov JINR Student Practice For Students From ARE.6/11/2009 CTP

2. Outline An Introduction To CalcHep & LanHep packages. Why all these programs? Studying e-e+  u-u+ interaction. Studying e-e+  e-e+ in QED Model and Standard Model. JINR Student Practice For Students From ARE.6/11/2009

3. Features of CalcHEP - Can evaluate any decay and scattering processes within any (user defined) model using Feynman rules. - Tree level processes. JINR Student Practice For Students From ARE.6/11/2009

4. LanHep -Generate Feynman rules for new physics models. -Reads Lagrangian. - Writes Feynman rules in the form of four tables in LanHEP format as well as tables in Latex or Pdf format. JINR Student Practice For Students From ARE.6/11/2009

5. e-e+  u-u+ interaction - Set the Lagrangian and construct Feynman diagrams to get M matrix. - Construct Feynman diagram and getting M matrix JINR Student Practice For Students From ARE.6/11/2009

6. - Getting I M I and integrate To get the total cross Section JINR Student Practice For Students From ARE.6/11/2009

7. ?

8. CalcHEP menu structure: GUI JINR Student Practice For Students From ARE.6/11/2009

10. u-u+ Threshold JINR Student Practice For Students From ARE.6/11/2009

12. Angular Dependence JINR Student Practice For Students From ARE.6/11/2009

13. e-e+  e-e+ In QED And Standard Model n JINR Student Practice For Students From ARE.6/11/2009

14. LanHep JINR Student Practice For Students From ARE.6/11/2009

16. QED S.M JINR Student Practice For Students From ARE.6/11/2009 ?

17. All Scientists From all The World Try To Follow These Tiny Fantastic Particles … - JINR Student Practice For Students From ARE.6/11/2009

18. Thank You So Much