Corrections beyond the leading order in π{sup 0} → e{sup +}e{sup −} process
Journal Article
·
· AIP Conference Proceedings
- Institute of Particle and Nuclear Physics, Faculty of Mathematics and Physics, Charles University, Prague (Czech Republic)
We briefly summarize experimental and theoretical results on the rare decay π{sup 0} → e{sup +}e{sup −}. Two-loop QED corrections are reviewed and the bremsstrahlung contribution beyond the soft-photon approximation is analytically calculated. Using the leading logarithm approximation, the possible contribution of QCD corrections is estimated. The complete result can be used to fit the value of the contact interaction coupling χ{sup (r)} to the recent KTeV experiment with the result χ{sup (r)}(M{sub ρ}) = 4.5±1.0.
- OSTI ID:
- 22499036
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1701; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Topics in perturbative quantum field theory: eighth order QED contribution to the anomalous magnetic moment of the muon and next to leading order QCD correction to. gamma gamma -->. M/sup +/M/sup -/(M =. pi. , K)
A Measurement of the Branching Ratio of the π0 Dalitz Decay using K(L) → 3 π0 Decays from KTeV
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:5429670
A Measurement of the Branching Ratio of the π0 Dalitz Decay using K(L) → 3 π0 Decays from KTeV
Thesis/Dissertation
·
Wed Aug 01 00:00:00 EDT 2007
·
OSTI ID:935238