PHOTOS technical tests

• Comparison of two versions of PHOTOS algorithm: 1.9 and 1.10.
  These version differ in implementation of interference weight.
  Also, the generation of crude distributions is different. We have determined that the two methods give the same results.
  
• Test of the impact of interference weight on invariant mass distributions:
  We performed the test on our "benchmark" channel: Z⁰ -> mu⁺ mu^-. The following MC-TESTER comparisons are available:
  • MC-TESTER analysis for Z -> mu mu decay, PHOTOS O(2)
  • MC-TESTER analysis for Z -> mu mu decay, PHOTOS Exp
• We also perform tests of the new, universal interference weight implemented in PHOTOS 2.10, particularly for K decays (the interference weight was not available for these channels in earlier versions of PHOTOS).
  • More detailed results are gathered on this page
  • shortcut to MC-TESTER analysis for process K⁰_L -> mu pi nu
  • shortcut to MC-TESTER analysis for process K⁰_L -> e pi nu