Single- and Two-Photon-Induced Processes at the B Factories
We discuss single- and two-photon-induced processes in e{sup +}e{sup -} annihilations with center-of-mass energy near 10.58 GeV from the BaBar and Belle experiments. In particular, we present experimental results from two-photon physics of {gamma}{gamma} {yields} {pi}{sup 0}{pi}{sup 0} and {gamma}{gamma}* {yields} {pi}{sup 0}. We also review the observation of the Two-Virtual-Photon-Annihilation process (e{sup +}e{sup -} {yields} {rho}{sup 0}{rho}{sup 0} and e{sup +}e{sup -} {yields} {phi}{rho}{sup 0}) and the observation of e{sup +}e{sup -} {yields} {rho}{sup +}{rho}{sup -}, which should be primarily a one virtual photon process, but whose angular distributions may imply potential interference effects.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1043854
- Report Number(s):
- SLAC-PUB-15090; TRN: US1203208
- Journal Information:
- Hamburg 2009, Photon 2009* 392-399, Conference: Prepared for Photon 2009: International Conference on the Structure and Interactions of the Photon: 18th International Workshop on Photon-Photon Collisions: International Workshop on High Energy Photon Linear Colliders, Hamburg, German
- Country of Publication:
- United States
- Language:
- English
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