Light quark mass ratio from Dalitz plot of $η\to π^+π^-π^0$ decay
| dc.creator | Martemyanov, B. V. | |
| dc.creator | Sopov, V. S. | |
| dc.date | 2005-02-02 | |
| dc.date.accessioned | 2026-07-07T10:29:24Z | |
| dc.date.available | 2026-07-07T10:29:24Z | |
| dc.description | High statistics Dalitz-plot distribution of $η\to π^+π^-π^0$ decay obtained recently by KLOE collaboration \cite{kloe} is fitted to the results of corresponding theoretical calculations in Chiral Perturbation Theory (ChPT) with unitarity corrections taken into account. The quark mass ratio $Q = \sqrt{(m^2_s - (m_d + m_u)^2/4)/(m^2_d - m^2_u)} $ can be otained from this analysis. We get $Q= 22.8\pm 0.4$ which differs from the value $Q_{DT} = 24.2$ that follows from Dashen's theorem and agrees with recently calculated electromagnetic kaon mass difference. | |
| dc.description | 2 pages, no figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0502023 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0502023 | |
| dc.identifier | Phys.Rev.D71:017501,2005 | |
| dc.identifier | doi:10.1103/PhysRevD.71.017501 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177789 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Light quark mass ratio from Dalitz plot of $η\to π^+π^-π^0$ decay | |
| dc.type | text |