X(2175) as a resonant state of the $ϕK \bar{K}$ system
| dc.creator | Torres, A. Martínez | |
| dc.creator | Khemchandani, K. P. | |
| dc.creator | Geng, L. S. | |
| dc.creator | Napsuciale, M. | |
| dc.creator | Oset, E. | |
| dc.date | 2008-01-23 | |
| dc.date | 2008-11-04 | |
| dc.date.accessioned | 2026-07-07T11:55:29Z | |
| dc.date.available | 2026-07-07T11:55:29Z | |
| dc.description | We perform a Faddeev calculation for the three mesons system, $ϕK \bar{K}$, taking the interaction between two pseudoscalar mesons and between a vector and a pseudoscalar meson from the chiral unitary approach. We obtain a neat resonance peak around a total mass of 2150 MeV and an invariant mass for the $K \bar{K}$ system around 970 MeV, very close to the $f_0(980)$ mass. The state appears in I=0 and qualifies as a $ϕf_0(980)$ resonance. We enlarge the space of states including $ϕππ$, since $ππ$ and $K \bar{K}$ build up the $f_0$ (980), and find moderate changes that serve to quantify theoretical uncertainties. No state is seen in I=1. This finding provides a natural explanation for the recent state found at BABAR and BES, the X(2175), which decays into $ϕf_0(980)$. | |
| dc.description | version accepted for publication | |
| dc.identifier | https://arxiv.org/abs/0801.3635 | |
| dc.identifier | http://arxiv.org/abs/0801.3635 | |
| dc.identifier | Phys.Rev.D78:074031,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.074031 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205259 | |
| dc.subject | Nuclear Theory | |
| dc.title | X(2175) as a resonant state of the $ϕK \bar{K}$ system | |
| dc.type | text |