00001 ****************************************************************************** 00002 * * 00003 * PYTUNE v1.013 : Presets for underlying-event (and min-bias) * 00004 * Last Change : Feb 2008 - P. Skands * 00005 * * 00006 * 300 Tune S0 * 00007 * see P. Skands & D. Wicke, hep-ph/0703081 * 00008 * M. Sandhoff & P. Skands, in hep-ph/0604120 * 00009 * and T. Sjostrand & P. Skands, hep-ph/0408302 * 00010 * * 00011 * MSTP(51) = 7 PDF set * 00012 * MSTP(52) = 1 PDF set internal (=1) or pdflib (=2) * 00013 * PARP(64) = 1.0000 ISR renormalization scale prefactor * 00014 * MSTP(68) = 3 ISR phase space choice & ME corrections * 00015 * (Note: MSTP(68) is not explicitly (re-)set by PYTUNE) * 00016 * MSTP(70) = 2 ISR IR regularization scheme * 00017 * MSTP(72) = 0 ISR scheme for FSR off ISR * 00018 * PARP(71) = 4.0000 FSR Q2max factor for non-s-channel procs * 00019 * PARJ(81) = 0.2300 FSR Lambda_QCD scale * 00020 * MSTP(81) = 21 UE model * 00021 * PARP(82) = 1.8500 UE IR cutoff at reference ecm * 00022 * (Note: PARP(82) replaces PARP(62).) * 00023 * PARP(89) = 1800.0000 UE IR cutoff reference ecm * 00024 * PARP(90) = 0.1600 UE IR cutoff ecm scaling power * 00025 * MSTP(82) = 5 UE hadron transverse mass distribution * 00026 * PARP(83) = 1.6000 UE mass distribution parameter * 00027 * MSTP(88) = 0 BR composite scheme * 00028 * MSTP(89) = 1 BR colour scheme * 00029 * PARP(79) = 2.0000 BR composite x enhancement * 00030 * PARP(80) = 0.0100 BR breakup suppression * 00031 * MSTP(91) = 11 BR primordial kT distribution * 00032 * PARP(93) = 5.0000 BR primordial kT UV cutoff * 00033 * MSTP(95) = 6 FSI colour (re-)connection model * 00034 * PARP(78) = 0.2000 FSI colour reconnection strength * 00035 * * 00036 ******************************** END OF PYTUNE ******************************* 00037 00038 select pytune 300 00039 pypars mstp 128 1 00040 00041 # here are the Hendrik additional tunes Perugia MPI@LHC 30 Okt 2008 00042 # tuned to LEP data 00043 00044 ################################### 00045 # Flavour Parameters 00046 ################################### 00047 00048 # di-quark suppression: default 0.1 00049 pydat1 parj 1 0.073 00050 00051 # strange suppression: default 0.3 00052 pydat1 parj 2 0.2 00053 00054 # strange di-quark suppression: default 0.4 00055 pydat1 parj 3 0.94 00056 00057 # spin-1 di-quark suppression: default 0.05 00058 pydat1 parj 4 0.032 00059 00060 # spin-1 light meson: default 0.5 00061 pydat1 parj 11 0.31 00062 00063 # spin-1 strange meson: default 0.6 00064 pydat1 parj 12 0.4 00065 00066 # spin-1 heavy meson: default 0.75 00067 pydat1 parj 13 0.54 00068 00069 # eta suppression: default 1.0 00070 pydat1 parj 25 0.63 00071 00072 # eta' suppression: default 0.4 00073 pydat1 parj 26 0.12 00074 00075 ################################### 00076 # Fragmentation Parameters 00077 ################################### 00078 00079 # Lund-Bowler fragmentation: default 4 00080 pydat1 mstj 11 5 00081 00082 # sigma_{q}: default 0.36 00083 pydat1 parj 21 0.313 00084 00085 # a : default 0.3 00086 pydat1 parj 41 0.49 00087 00088 # b : default 0.58 00089 pydat1 parj 42 0.58 00090 00091 # r_{b} : default 1.0 00092 pydat1 parj 47 1.0 00093 00094 # Lambda : default 0.29 00095 pydat1 parj 81 0.257 00096 00097 # PS cut-off : default 1.0 00098 pydat1 parj 82 0.8 00099