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Di-hadron correlation in DIS based on e+p pythia data

Di-hadron correlation in DIS based on e+p pythia data. Outline. Introduction ∆ φ and ∆y distribution of charged pions Leading particle rapidity, pt, θ . Pair production Conclusion. QCD Compton. Boson Gluon Fusion. Introduction. Di-jet processes in DIS are very interesting.

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Di-hadron correlation in DIS based on e+p pythia data

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  1. Di-hadron correlation in DIS based on e+p pythia data

  2. Outline • Introduction • ∆φand ∆y distribution of charged pions • Leading particle rapidity, pt, θ . • Pair production • Conclusion

  3. QCD Compton Boson Gluon Fusion Introduction • Di-jet processes in DIS are very interesting. • We choose one final hadron with the highest pt as the leading particle in one jet and make combinations with the other hadrons in the final state (mostly charged pion). • The di-hadron production provides the most direct method of measuring the underlying quark scattering mechanism. • Major pythia files which we focus on are e+p 10+250, 30+325 1Mevents without radiative correction. As a comparison, we also look into the energy of 27+920.

  4. ∆φ and ∆y distribution Leading particle (with highest pt in every event) We are trying to look into the charged pions generated by the di-jet process. Pt, Q2 and acceptance cuts are also taken into consideration.

  5. Q2 vs x for pions with and without pt cuts

  6. Q2 vs x for 10+250 Assume the detector acceptance is 170°>θ>10°

  7. Q2 vs x for 30+325 170°>θ>10°

  8. ∆φ distribution 10+250 30+325 27+920

  9. LODIS 10+250GeV 170°>θ>10°(|η|<2.44) PGF QCDC

  10. LODIS 10+250GeV 170°>θ>10°(|η|<2.44)

  11. ∆y distribution 10+250 30+325 27+920

  12. ∆y vs ∆φ 10+250 30+325 27+920

  13. Leading particle with highest pt

  14. 10+250 Pt of particle with highest pt 30+325 27+920

  15. 10+250 Rapidity of particle with highest pt 30+325 27+920

  16. 10+250 Rapidity of trigger particle with pt cut 30+325 27+920

  17. Rapidity vs pt of leading particle10+250 With acceptance cut for 170°>θ>10°

  18. Rapidity vs pt of leading particle30+325 With acceptance cut for 170°>θ>10°

  19. 10+250 θ vs pt of the particle with highest pt 30+325 27+920

  20. 10+250 θ vs p of leading particle 30+325 27+920

  21. Pair production

  22. Kinematics

  23. Pair rapidity,pt,M2 distribution for 10+250

  24. Pair rapidity,pt,M2 distribution for 10+250

  25. ∆φ vs pt pair

  26. Conclusion • From the di-hadron correlation in DIS of e+p collision we can get some valuable information of the underlying dijet process • Try to look into the di-hadron correlation in e+A collisions in the future

  27. Back up

  28. Rapidity correlation

  29. Delta phi distribution at higher Q2

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