Is there a paradox in CP asymmetries of tau to K_{L,S} pi nu decays?
| dc.creator | Calderon, G. | |
| dc.creator | Delepine, D. | |
| dc.creator | Castro, G. Lopez | |
| dc.date | 2007-02-27 | |
| dc.date.accessioned | 2026-07-07T11:02:47Z | |
| dc.date.available | 2026-07-07T11:02:47Z | |
| dc.description | Based on the description of unstable $K_{L,S}$ particles in quantum field theory (QFT), we compute the time-dependent probabilities for transitions between asymptotic states in $τ^{\pm} \to [π^+π^-]_Kπ^{\pm}ν$ decays, where the pair $[π^+π^-]_K$ is the product of (intermediate state) neutral kaon decays. Then we propose a definition of $τ$ decays into $K_L$ and $K_S$ states, which reflects into the cancellation between their CP rate asymmetries, thus solving in a natural way the paradox pointed out previously in litterature. Since our definition of $K_{L,S}$ final states in $τ$ decays is motivated on experimental grounds, our predictions for the integrated CP rate asymmetries can be tested in a dedicated experiment. | |
| dc.description | 4 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0702282 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0702282 | |
| dc.identifier | Phys.Rev.D75:076001,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.076001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188370 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Is there a paradox in CP asymmetries of tau to K_{L,S} pi nu decays? | |
| dc.type | text |