The $η_c(3654)$ and hyperfine splitting in charmonium
| dc.creator | Badalian, A. M. | |
| dc.creator | Bakker, B. L. G. | |
| dc.date | 2003-02-21 | |
| dc.date.accessioned | 2026-07-07T10:28:45Z | |
| dc.date.available | 2026-07-07T10:28:45Z | |
| dc.description | The hyperfine splitting for the 2S charmonium state is calculated and the predicted number is $Δ_{\rm HF}(2S) = 57 \pm 8$ MeV, being by derivation the lower bound of this splitting. It results in $M(η_c(2S))= 3630 \pm 8$ MeV, which is smaller by two standard deviations than found in the Belle experiment \cite{ref.01}, but close to the $η_c(2S)$ mass observed by the same group in the experiment $e^+e^- \to J/ψη_c$ \cite{ref.06} where $M(η_c(2S)) = 3622 \pm 12$ MeV was found. | |
| dc.description | 8 pages RevTex | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0302200 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0302200 | |
| dc.identifier | Phys.Rev.D67:071901,2003 | |
| dc.identifier | doi:10.1103/PhysRevD.67.071901 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177557 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | The $η_c(3654)$ and hyperfine splitting in charmonium | |
| dc.type | text |