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SUSYGEN ppbar : Status.

Susygen 3. SUSYGEN ppbar : Status. Authors : E. Perez , N. Ghodbane, S. Katsanevas, P. Moravitz Tests / interface : Y. Arnoud, A. B. (ISN-Grenoble) Susygen properties. What’s up ? Tests and comparisons with ISAJET. Mass spectrum. Cross-sections. Topology. Conclusion. Susygen 3.

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SUSYGEN ppbar : Status.

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  1. Susygen 3 SUSYGEN ppbar : Status. • Authors :E. Perez, N. Ghodbane, S. Katsanevas, P. Moravitz • Tests / interface :Y. Arnoud, A. B. (ISN-Grenoble) • Susygen properties. • What’s up ? • Tests and comparisons with ISAJET. • Mass spectrum. • Cross-sections. • Topology. • Conclusion. New Phenomena, May 24th 2001.

  2. Susygen 3 Susygen properties. • SUSY generator : now available for ppbar. • Computes matrix elements for each process. • SUSY models : mSUGRA, MSSM, GMSB, • R-parity violated : • One dominant coupling : • Double production + LSP decay. • Resonant production. • Phases : A, M1,  • Extra-dimensions. • Hadronisation by Jetset-Pythia. New Phenomena, May 24th 2001.

  3. What’s up ? NLO Cross-section soon. + simple and double production in RpV New Phenomena, May 24th 2001.

  4. Susygen 3 What’s up ? (2) • Many tests and debugging. • Thousands of events generated. • Interface with SUSPECT : • computes the SUSY mass spectrum. • SUSYGEN on CVS. • Interfaced with MC++ • Output in Dspack format. • Works on p05, p06, p08. New Phenomena, May 24th 2001.

  5. Susygen 3 Susygen : Tests. • SCAN in the SUGRA parameters space. • m0 : 100, 150, 200, 250, 300, 350, 400, 500 • m1/2 : 100, 120, 140, 160, 180, 200, 220, 240, 260 • A0 : 0 • Tan  : 5, 7, 10, 15, 30. • Sign  : +1, -1. • Comparisons with ISAJET. New Phenomena, May 24th 2001.

  6. Susygen : crosses. Isajet : triangles. Chargino 1 Mass vs. m1/2 m0 = 300 sign  = -1 A0 = 0 tan  = 5 New Phenomena, May 24th 2001.

  7. Susygen : crosses. Isajet : triangles. Neutralino 1 Mass vs. m1/2 m0 = 300 sign  = -1 A0 = 0 tan  = 5 New Phenomena, May 24th 2001.

  8. Susygen : crosses. Isajet : triangles. m0 = 500 m0 = 300 Chargino 2 Mass vs. m1/2 m0 = 100, 300, 500 sign  = -1 A0 = 0 tan  = 5 m0 = 100 New Phenomena, May 24th 2001.

  9. Susygen : crosses. Isajet : triangles. m0 = 500 m0 = 300 Neutralino 3 Mass vs. m1/2 m0 = 100, 300, 500 sign  = -1 A0 = 0 tan  = 5 m0 = 100 MASSES of Chargino 2, Neutralinos 3, 4. ISAJET more sensitive to m0 than SUSPECT. New Phenomena, May 24th 2001.

  10. MASSES of Neutralino 3 vs m0 MASSES of Chargino 2 vs. m0 Susygen : crosses. Isajet : triangles. Neutralino 3 Mass vs. m1/2 m0 = 100, 300, 500 sign  = -1 A0 = 0 tan  = 5 m1/2 = 160 sign  = -1 A0 = 0 tan  = 5 50 GeV discrepancy for large M0. New Phenomena, May 24th 2001.

  11. Susygen : crosses. Isajet : triangles. Gauginos production Cross-section (pb) vs. m1/2 m0 = 300 sign  = -1 A0 = 0 tan  = 5 New Phenomena, May 24th 2001.

  12. Susygen : crosses. Isajet : triangles. m0 = 500 Squark Upl Mass vs. m1/2 m0 = 100, 300, 500 sign  = -1 A0 = 0 tan  = 5 SQUARK cross-sections depends mostly on their mass. m0 = 300 m0 = 100 New Phenomena, May 24th 2001.

  13. Susygen : crosses. Isajet : triangles. squarks production (stop excepted) Cross-section (pb) vs. Mass of Upl m0 = 100 - 500 m1/2 = 100 - 260 sign  = -1 A0 = 0 tan  = 5 New Phenomena, May 24th 2001.

  14. Susygen : crosses. Isajet : triangles. stops production Cross-section (pb) vs. Mass of STOP 1 m0 = 100 - 500 m1/2 = 100 - 260 sign  = -1 A0 = 0 tan  = 5 New Phenomena, May 24th 2001.

  15. Susygen : crosses. Isajet : triangles. Gluino Mass vs. m1/2 m0 = 300 sign  = -1 A0 = 0 tan  = 5 More than 50 GeV Discrepancy for M1/2 > 250 New Phenomena, May 24th 2001.

  16. m1/2 = 260 Susygen : crosses. Isajet : triangles. Gluino Mass vs. m0 m0 = 100 to 500 m1/2 = 100, 180, 260 sign  = -1 A0 = 0 tan  = 5 m1/2 = 180 m1/2 = 100 New Phenomena, May 24th 2001.

  17. Susygen : crosses. Isajet : triangles. M0 = 500 Higgs hmass vs. m1/2 m0 = 100, 300, 500 sign  = -1 A0 = 0 tan  = 15 M0 = 300 M0 = 100 2001 LEP-Higgs Working Group limit = 91 GeV New Phenomena, May 24th 2001.

  18. Topology : Gauginos pair prod. • generation of charginos and neutralinos. • Rp conservated.  mainly Charginos 1 and Neutralinos 2 • 3000 events for each generator. • Generation only. No simulation. • mc_analyze (modified) on p08.09 • m0 = 200 • m1/2 = 150 • sign  = -1 • A0 = 0 • tan  = 5 Susygen : red. Isajet : blue. New Phenomena, May 24th 2001.

  19. Susygen : red. Isajet : blue. 1st and 2nd most energetic electrons vs. pT New Phenomena, May 24th 2001.

  20. Susygen : red. Isajet : blue. 1st and 2nd most energetic electrons vs. E. (GeV) New Phenomena, May 24th 2001.

  21. Susygen : red. Isajet : blue. 1st and 2nd most energetic electrons vs. eta. New Phenomena, May 24th 2001.

  22. Susygen : red. Isajet : blue. 4 most energetic JETS vs. pT Jets done with simple cone algorithm. New Phenomena, May 24th 2001.

  23. Susygen : red. Isajet : blue. 4 most energetic JETS vs. eta. New Phenomena, May 24th 2001.

  24. Susygen : red. Isajet : blue. 4 most energetic JETS vs. Energy. New Phenomena, May 24th 2001.

  25. Conclusion. • Between Isajet and Susygen: • Good agreement for cross-sections and topology. • Discrepancies concerning mass spectrum. Who’s right ? • To be done : • CVS. • Include the NLO version (for squark and gluinos processes). • Test extra-dimensions. • Compare with Herwig. • Interface with mc_runjob. • Web pages : • Official : http://lyoinfo.in2p3.fr/susygen/susygen3.html • D0 stuff : http://isnwww.in2p3.fr/d0/generateurs/index.html New Phenomena, May 24th 2001.

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