On the electron-positron energy asymmetry in K_L --> pi0 e+ e-
| dc.creator | Gao, Dao-Neng | |
| dc.date | 2003-12-15 | |
| dc.date | 2004-02-14 | |
| dc.date.accessioned | 2026-07-07T03:51:34Z | |
| dc.date.available | 2026-07-07T03:51:34Z | |
| dc.description | Motivated by some new experimental and theoretical efforts, we update the theoretical analysis of the electron-positron energy asymmetry, which arises, in K_L --> pi0 e+ e-, from the two-photon intermediate state in the standard model. It is found that the measurement of this asymmetry in future experiments may increase our understanding of the K_{L, S} --> pi0 e+ e- decays, which would thus provide some useful information on quark flavor physics. Meanwhile, in the standard model the electron-positron energy asymmetry in the decay of K_S --> pi0 e+ e- is expected to be vanishingly small, therefore the asymmetry in K_S --> pi0 e+ e- might be a very interesting quantity to explore new physics scenarios. | |
| dc.description | 11 pages, 4 figures. Two figures added to show the sensitivity of the asymmetry to a_S and a_V, and some discussions added. To appear in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0312181 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0312181 | |
| dc.identifier | Phys.Lett. B586 (2004) 307-313 | |
| dc.identifier | doi:10.1016/j.physletb.2004.02.026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/43144 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | On the electron-positron energy asymmetry in K_L --> pi0 e+ e- | |
| dc.type | text |