1. Improvement of DPM Generator
Dual Parton Model (Quark-Gluon String Model)
A. Galoyan, JINR, Dubna, Russia
1. Improvement of inclusive spectra:
meson spectra
baryon spectra
2. New parameterization of elastic scattering
hadronic scattering
Coulomb scattering
3. Conclusion

2. Improvement of DPM Generator
Results of DPM on inelastic pbar-p in PandaRoot

3. Improvement of DPM Generator
Results of DPM on inelastic pbar-p in PandaRoot

4. Improvement of DPM Generator
A.Galoyan, V.Uzhinsky, AIP Conf. Proc. 796 (2005) 79, Bonn
Dual Parton Model (Quark-Gluon String Model)
Process "a" is responcible for multi-particle
production at low energies 3Pi0,
Pi0 Pi+ Pi-, ….
Process "b" leads to 2-baryon final states,
like Lambda-Lambda-Bar,
Delta-Delta-Bar and so on.
Process "c" gives 2-particles states at low
energies - Pi+Pi-, Pi0Pi0, K+K-

5. A.Galoyan, V.Uzhinsky, AIP Conf. Proc. 796 (2005) 79, Bonn
Improvement of DPM Generator
Process “h” - low mass diffraction
Process “g” is going through pomeron
exchange.
A.Galoyan, V.Uzhinsky, AIP Conf. Proc. 796 (2005) 79, Bonn

6. Improved DPM - some results.
Tuning of string junction annihilation (a) and quark-antiquark annihilation (b). Implementation of LMD (h) Subroutine init.f

7. Improved DPM - some results.
Tuning of string junction annihilation (a) and quark-antiquark annihilation (b). Implementation of LMD (h) Subroutine init.f

8. Improved DPM - some results.

9. Improved hadronic elastic scattering in
DPM-generator

10. New parameters for hadronic elastic scattering in DPM-generator
dσ ⁄ dt = A1 (exp (B1 t/2 – A2 exp(B2 t/2)2 + A3 exp(B2 t)

11. Improved elastic scattering - some results.

12. Improved elastic scattering - some results.

13. Improved elastic scattering - some results.

14. Improved elastic scattering - some results.

15. Improved elastic scattering - some results.

16. Coulomb, interference, hadronic parts of elastic scattering in DPM generator.

17. Results of the new version of DPM and experimental data E760 collab.

18. Conclusion 1 Fine tuning of DPM is performed in a part.
2 Spectra of mesons are Improved.
3 Low mass diffraction is implemented for improvement of spectra of protons and antiprotons.
4 Simulation of binary channels is Included. The consideration of these channels will be done.
5 Parametrization of elastic scattering is improved.
6 Smearing of a beam is implemented in DPM (results are prepared and will be presented).
7 Draft of a paper on the new parameterization in DPM is prepared.