How Resonances can synchronise with Thresholds
| dc.creator | Bugg, D. V. | |
| dc.date | 2008-02-07 | |
| dc.date | 2008-02-17 | |
| dc.date.accessioned | 2026-07-07T11:55:53Z | |
| dc.date.available | 2026-07-07T11:55:53Z | |
| dc.description | The mechanism by which a threshold may capture a resonance is examined. It involves a threshold cusp interfering constructively with either or both (i) a resonance produced via confinement, (ii) attractive t- and u-channel exchanges. The fo(980), X(3872) and Z(4430) are studied in detail. The fo(980) provides a valuable model of the locking mechanism. The X(3872) is too narrow to be fitted by a cusp, and requires either a resonance or virtual state. The Z(4430) can be fitted as a resonance but also can be fitted successfully by a cusp with no nearby resonant pole. | |
| dc.description | 19 pages, 6 figures. Replaces 0709.1254 | |
| dc.identifier | https://arxiv.org/abs/0802.0934 | |
| dc.identifier | http://arxiv.org/abs/0802.0934 | |
| dc.identifier | J.Phys.G35:075005,2008 | |
| dc.identifier | doi:10.1088/0954-3899/35/7/075005 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205399 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | How Resonances can synchronise with Thresholds | |
| dc.type | text |