$ππ$ Invariant mass spectrum in $V'\to V~ππ$ and the $f_0(600)$ pole
| dc.creator | Gallegos, A. | |
| dc.creator | M., J. L. Lucio | |
| dc.creator | Pestieau, J. | |
| dc.date | 2003-11-10 | |
| dc.date.accessioned | 2026-07-07T10:29:01Z | |
| dc.date.available | 2026-07-07T10:29:01Z | |
| dc.description | We consider the phenomenological description of the two pion invariant mass spectrum in the $V' \to V ππ$ decays. We study the parametrization of the amplitude involving both $S$ and $D$ wave contributions. From a fit to the two pion decays of the $ Υ(nS)$ and $Ψ(nS)$ we determine the $f_0 (600)$ mass and width to be $m_{f_0}=528 \pm 32$ MeV and $Γ_{f_0}=413\pm 45$ MeV. The mass and width values we report correspond to the real and imaginary part of the S matrix pole respectively. | |
| dc.description | 19 pages, 3 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0311133 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0311133 | |
| dc.identifier | Phys.Rev.D69:074033,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.69.074033 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177649 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | Nuclear Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | $ππ$ Invariant mass spectrum in $V'\to V~ππ$ and the $f_0(600)$ pole | |
| dc.type | text |