The BABAYAGA event generator
نویسنده
چکیده
The program BABAYAGA is an event generator for QED processes at flavour factories, mainly intended for luminosity measurement of e+e− colliders in the center of mass range 1-10 GeV. Recently, the π+π− channel has been added as well. The relevant (photonic) radiative corrections are simulated by means of a Parton Shower in QED. The theoretical precision of the approach is estimated and some phenomenological results are discussed.
منابع مشابه
ar X iv : h ep - p h / 06 10 02 2 v 1 2 O ct 2 00 6 Matrix elements and Parton Shower in the event generator BABAYAGA
A new version of the event generator BABAYAGA is presented, which is based on an original matching of the Parton Shower approach with the complete exact O(α) matrix element for the inclusion of the QED radiative corrections to the Bhabha process at flavour factories. The theoretical accuracy of the improved generator is conservatively estimated to be 0.2%, by comparison with independent calcula...
متن کاملLarge-angle Bhabha Scattering and Luminosity at Daφne
The accurate knowledge of luminosity at ee flavour factories requires the precision calculation of the Bhabha cross section at large scattering angles. In order to achieve a theoretical accuracy at the 0.1% level, the relevant effect of QED radiative corrections is taken into account in the framework of the Parton Shower method, which allows exclusive event generation. On this scheme, a Monte C...
متن کاملPhoton pair production at flavour factories with per mille accuracy
We present a high-precision QED calculation, with 0.1% theoretical accuracy, of two photon production in ee annihilation, as required by more and more accurate luminosity monitoring at flavour factories. The accuracy of the approach, which is based on the matching of exact next-to-leading order corrections with a QED Parton Shower algorithm, is demonstrated through a detailed analysis of the im...
متن کاملLarge-angle Bhabha scattering and luminosity at flavour factories
The luminosity determination of electron-positron colliders operating in the region of low-lying hadronic resonances (Ecm ≃ 1-10 GeV), such as BEPC/BES, DAΦNE, KEKB, PEP-II and VEPP-2M, requires the precision calculation of the Bhabha process at large scattering angles. In order to achieve a theoretical accuracy at a few 0.1% level, the inclusion of radiative corrections is mandatory. The pheno...
متن کاملLoss of Excitation Detection in Doubly Fed Induction Generator by Voltage and Reactive Power Rate
The doubly fed induction generator (DFIG) is one of the most popular technologies used in wind power systems. With the growing use of DFIGs and increasing power system dependence on them in recent years, protecting of these generators against internal faults is more considered. Loss of excitation (LOE) event is among the most frequent failures in electric generators. However, LOE detection stud...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003