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cb220f83 | 1 | **************************** |
2 | * * | |
3 | * Update notes * | |
4 | * * | |
5 | * PYQUEN version 1.1 * | |
6 | * * | |
7 | **************************** | |
8 | ||
9 | (Last updated 26 April 2006) | |
10 | ||
11 | PYQUEN version 1.1 is a direct continuation of version 1.0. | |
12 | It should be used with PYTHIA version 6.401 (or later versions). | |
13 | ||
14 | Main new or improved features from previous version | |
15 | ||
16 | 1. New tolerance parameter paru(14) is introduced to ajust fragmentation of | |
17 | strings containing in-medium emitted gluons in PYTHIA_6401 routine PYSTRF. | |
18 | ||
19 | 2. Minimum transverse momentum, 200 MeV, is requested for in-medium emitted | |
20 | gluon to be included in event list and strings. | |
21 | ||
22 | 3. Cut off on maximum absolute pseudorapidity of hard parton to be rescattered | |
23 | in a medium is reduced to 3.5 (instead of 5. in previous version). | |
24 | ||
25 | 4. Showering partons produced by the initial state radiation in PYTHIA are | |
26 | not allowed to be rescattered in a medium. | |
27 | ||
28 | 5. Treatment of the option "vacuum showering after in-medium partonic energy | |
29 | loss" is improved. | |
30 | ||
31 | 6. Bug fix in PYQUEN subroutine PLJETR: when hard parton loses almost its | |
32 | energy, restriction on values of collisional and radiative loss may need. | |
33 | ||
34 | 7. Setting parameter mstp(111)=0 in main user routine is recommended to | |
35 | switch off hadronization before calling pyquen instead of mstj(1)=0. | |
36 | ||
37 | ----------------------------------------------------------------------- |