Hard bremsstrahlung in KK and PHOTOS - results


Comparison of KK and PHOTOS with XPHCUT=0.00001
in Z->mu mu + bremsstrahlung process at 91.187GeV
GENERATOR Branching ratio Maximum SDP T1 T2 Booklet
test1 test2 test1 test2 test1 test2 test1 test2 test1 test2
(n photons) -> 0 1 0 1 2 0 1 0 1 2
E_test=1.0
KK 83.918 16.082 83.918 14.816 1.266
KORAL-Z 83.984 16.016 83.925 14.630 1.445 0 0.00026 0 0.0021 0.019 0.133 0.373 0.004 0.054
KORAL-Z O(1) 82.514 17.486 0 0.024 2.807 0.409
PHOTOS O(1) 82.362 17.638 0 0.022 3.110 0.373
PHOTOS O(2) 83.925 16.075 83.984 14.771 1.244 0 0.002 0 0.0003 0 0.016 0.133 0.0327 0.0043
PHOTOS O(3) 83.832 16.168 83.832 14.889 1.280 0 0.00003 0 0.00002 0.0018 0.172 0.172 0.0006 0.0023
PHOTOS O(4) 83.836 16.164 83.836 14.871 1.293 0 0.0002 0 0 0.0044 0.163 0.163 0.0024 0.0050
E_test=5.0
KK 91.672 8.037 0.290
KORAL-Z 91.739 7.980 0.281 0 0.00094 0.00005 0.132 0.0075
PHOTOS O(2) 91.593 8.087 0.320 0 0.0013 0.016 0.157 0.013
PHOTOS O(3) 91.584 8.115 0.301 0 0.00005 0.0035 0.175 0.0009
PHOTOS O(4) 91.581 8.117 0.302 0 0.00006 0.0050 0.181 0.0012

(Decription exactly the same as in test with 60 bins).
No test of exponentiated photos here - anyway, this table is for technical documentation only.

Last Modification: Piotr Golonka, 28 June 2004