Coherent Exclusive Exponentiation CEEX: the Case of the Resonant e+ e- Collision
S. Jadach (1, 2), B.F.L. Ward (3, 4), Z. Was (1, 2) ((1), CERN, Theory Division, Geneva, Switzerland, (2) Institute of Nuclear Physics,, Krakow, Poland, (3) Department of Physics, Astronomy, The University of, Tennessee, Knoxville, TN, (4) SLAC, Stanford University, Stanford, CA)
TL;DR
This paper introduces a first-order CEEX scheme that accurately models spin polarization and interference effects in e+ e- collisions, especially near narrow resonances, suitable for Monte Carlo simulations.
Contribution
It develops the first comprehensive CEEX framework with full spin control applicable to complex resonant processes in electron-positron collisions.
Findings
Provides explicit spin amplitudes and differential distributions ready for Monte Carlo implementation.
Demonstrates control over initial-final state interference effects.
Enables use of exact multi-photon amplitudes with Weyl-spinor techniques.
Abstract
We present the first-order coherent exclusive exponentiation (CEEX) scheme, with the full control over spin polarization for all fermions. In particular it is applicable to difficult case of narrow resonances. The resulting spin amplitudes and the differential distributions are given in a form ready for their implementation in the Monte Carlo event generator. The initial-final state interferences are under control. The way is open to the use of the exact amplitudes for two and more hard photons, using Weyl-spinor techniques, without giving up the advantages of the exclusive exponentiation, of the Yennie-Frautschi-Suura type.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.