Tests of the nature and of the gluon content of the σ(0.6) from D and D_{s} semileptonic decays
| dc.creator | Dosch, H. G. | |
| dc.creator | Narison, S. | |
| dc.date | 2002-08-29 | |
| dc.date.accessioned | 2026-07-07T10:48:33Z | |
| dc.date.available | 2026-07-07T10:48:33Z | |
| dc.description | We summarize the different features which show that QCD spectral sum rule analyses of the scalar two- and three-point functions do not favour the $\bar uu+\bar dd$ interpretation of the broad and low mass $σ(0.6)$ and emphasize that a measurement of the $D_s$ semileptonic decays into $ππ$ can reveal in a model-independent way its eventual gluon component $σ_B$. The analysis also implies that one expects an observation of the $K\bar K$ final states from the $σ_B$ which may compete (if phase space allowed) with the one from a low mass $\bar ss$ state assumed in the literature to be the SU(3) partner of the observed $σ(0.6)$ if the latter is a $\bar uu+\bar dd$ state | |
| dc.description | 6 pages latex file. 4 fig.eps | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0208271 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0208271 | |
| dc.identifier | Nucl.Phys.Proc.Suppl.121:114-118,2003 | |
| dc.identifier | doi:10.1016/S0920-5632(03)01824-3 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/183919 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Tests of the nature and of the gluon content of the σ(0.6) from D and D_{s} semileptonic decays | |
| dc.type | text |