PYFRIS

• S. Mrenna

 

• S. Muanza
 

• Interface between ISAJET SUSY RGEs subroutine "SUGRA" and PYTHIA:
• Input values for SUSY parameters at GUT scale
• "SUGRA" calculates SUSY masses and couplings evolutions downto EW scale
• PYFRIS feeds the results into PYTHIA at EW scale
• PYTHIA diagonalizes mass matrices, calculates BRs and cross sections, generates events
• Programming Language: Fortran 77
• Used to generate SUSY events with PYTHIA at D0 and to perform mSUGRA model scans
• History:
• written at my request for mSUGRA studies in GDR-SUSY group (S. Mrenna, July 1999)
• adapted for ISAJET 7.51 (S.Muanza, May 2001)
• Current D0 version: "v1.1" (July 2001)
• linked to ISAJET 7.58 and PYTHIA 6.202 (mcp11-mcp14)
• linked to ISAJET 7.51 and PYTHIA 6.155 (mcp8-mcp10)
• linked to ISAJET 7.51 and PYTHIA 6.129 (mcp6)
• First D0 version: "v1.0" (Nov. 2000)
• linked to ISAJET 7.44 and PYTHIA 6.129 (mcp5)

• S. Mrenna, http://www-pat.fnal.gov/personal/mrenna/spythia.html unpublished
• S. Muanza, "Generating SUSY events at the Tevatron Run II", D0 Note ??? (2010) ???

• D-term missing in the stau mass matrix (S. Muanza, April 2001):
• Added patch by S. Mrenna for PYTHIA v6.155 (mcp10)
• Bug fixed in PYTHIA v6.159 (S. Mrenna, June 2001)

Links:

• Main Page
• D0 Page

Last update:  SM  28 Mar 03