| DATE: |
2005-07-19 16:00 - 17:00 |
| PLACE: |
Room 345 in the 4th building, 3rd floor |
| TITLE: |
Physics Seminar: PHOTOS as a pocket Parton Shower and TAUOLA for tau decays |
| CONTACT: |
4342 |
| SPEAKER: |
Prof. Zbigniew Was (INP Krakow) |
| LANGUAGE: |
English |
| URL: |
http://seminar.kek.jp/physics/index.html |
| ABSTRACT: |
In simulations for future and present experiments of high energy physics, simmulation of QED radiative corrections in decay of all particles and resonances is important. Recently, it was possible to show, that PHOTOS can guarrantee high
precision of such simulations, if only in the exisiting scheme appropriate input from (sometimes process dependent) Matrix Elements is build in. Comparisons with other calculations show, that in case of W and Z decays indeed 0.1% level of precision for PHOTOS is achieved. Similar developments for K, D and B mesons decay are presently developped
having in mind systematic uncertainties of CKM matrix elements at Belle and BaBar. Algorithm and its construction may be interesting thanks of it relative
simple theoretical basis and similarities to solutions which may be used in QCD. In PHOTOS construction, use and comparison with exact Matrix Elements for processes with one, two and even three bremsstrahlung photons accompanying Born level process was essential. Short presentation of the recent developments in tau decay package
TAUOLA will be also given. Some selection from these subjects, on the basis of the audience interest will be done in the last moment. |
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