| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10725926 | Physics Letters B | 2008 | 5 Pages |
Abstract
We present a high-precision QED calculation, with 0.1% theoretical accuracy, of two photon production in e+eâ 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 impact of the various sources of radiative corrections to the experimentally relevant observables. The calculation is implemented in the latest version of the event generator BabaYaga, available for precision simulations of photon pair production at e+eâ colliders of moderately high energies.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
G. Balossini, C. Bignamini, C.M. Carloni Calame, G. Montagna, O. Nicrosini, F. Piccinini,