Heavy Quarkonium π^+π^- Transitions and a Possible b\bar{b}q\bar{q} State
| dc.creator | Guo, F. -K. | |
| dc.creator | Shen, P. -N. | |
| dc.creator | Chiang, H. -C. | |
| dc.creator | Ping, R. -G. | |
| dc.date | 2004-10-14 | |
| dc.date | 2006-04-21 | |
| dc.date.accessioned | 2026-07-07T10:49:16Z | |
| dc.date.available | 2026-07-07T10:49:16Z | |
| dc.description | $π^+π^-$ transitions of heavy quarkonia, especially the $ Υ(3S)\toΥ(1S)π^+π^-$ decay process, are revisited. In the framework of the Chiral Unitary Theory (ChUT), the $S$ wave $ππ$ final state interaction (FSI) is included. It is found that when an additional intermediate state with $J^P=1^+$ and I=1 is introduced, not only the $ ππ$ invariant mass spectrum and the $cosθ_π^*$ distribution in the $Υ(3S)\toΥ(1S)π^+π^-$ process can simultaneously be well-explained, but also a consistent description for other bottomonia $ π^+π^-$ transitions can be obtained. As a consequence, the mass and the width of the intermediate state are predicted. From the quark content analysis, this state should be a $b\bar bq\bar q$ state. | |
| dc.description | 17 pages, 8 figures; misprints corrected | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0410204 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0410204 | |
| dc.identifier | Nucl.Phys.A761:269-282,2005 | |
| dc.identifier | doi:10.1016/j.nuclphysa.2005.07.019 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/184162 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Heavy Quarkonium π^+π^- Transitions and a Possible b\bar{b}q\bar{q} State | |
| dc.type | text |