منابع مشابه
Bhabha Scattering at NNLO
We review the status of the calculation of next-to-next-to-leading order corrections to large angle Bhabha scattering in pure QED. After discussing the electron-loop and photonic corrections, we focus on the recently calculated two-loop virtual corrections involving a heavy-flavor fermion loop. We conclude by assessing the numerical impact of these corrections on the Bhabha scattering cross sec...
متن کاملOn Large-Angle Bhabha Scattering at LEP
The theoretical accuracy of the program TOPAZ0 in the large-angle Bhabha channel is estimated. The physical error associated with the full Bhabha cross section and its forward and backward components separately is given for some event selections and several energy points of interest for LEP1 physics, both for the s and non-s contributions to the cross section. E-mail: [email protected] nicros...
متن کاملBhabha Scattering at High Energies
A study of the process, e+e---) e+e-7, where at least one electron scatters at a small angle is presented. Calculations of the process to order o3 and cr4 are reviewed and compared with data from the PEP storage ring. An analysis of data from the Mark II detector shows good agreement with the order cx4 calculation for e7 final states. Preliminary results from the ASP detector agree well with th...
متن کاملFrom Polarized Bhabha Scattering Atthez'resonance
. . 111 The cross section for Bhabha scattering (e+e+ e+c-) with polarized electrons at the center of mass energy of the 2’ resonance has been measured with the SLD experiment at the Stanford Linear Accelerator Center during the 1992 and 1993 runs. The electroweak couplings of the electron are extracted. At small angles the measurement is done in the SLD Silicon/Tungsten Luminosity Monitor (LMS...
متن کاملTwo-loop QED Corrections to Bhabha Scattering
Bhabha scattering, ee → ee, is a crucial process in the phenomenology of particle physics. Its relevance is mainly due to the fact that it is the process employed to determine the luminosity L at ee colliders: in fact, L = NBhabha/σth, where NBhabha is the rate of Bhabha events and σth is the Bhabha scattering cross section calculated from theory. Two kinematic regions are of special interest f...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Canadian Journal of Physics
سال: 2018
ISSN: 0008-4204,1208-6045
DOI: 10.1139/cjp-2016-0955