Novel analysis of the decays Psi - hcpi0 and Etac - xc0pi0
| Popis: | We show that in the transitions psi' -> h(c)pi(0) and eta '(c) -> chi(c0)pi(0) the contributions from charmed-meson loops are highly suppressed, in contrast to various other charmonium decays. We calculate the width of the psi' -> h(c)pi(0), which agrees with the recent BES-III data, and predict the width of the eta '(c) -> chi(c0)pi(0), Gamma(eta '(c) -> chi(c0)pi(0)) = 1.5 +/- 0.4 keV. A confirmation of this prediction would also provide additional support for a recent analysis of psi' -> J/psi pi(0)(eta), where loops are claimed to play a prominent role. |
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| Jazyk: | English |
| Přístupová URL adresa: | https://explore.openaire.eu/search/publication?articleId=od______3364::332b167c0482c46c132f2e1b3ab23e54 https://hdl.handle.net/2128/10323 |
| Rights: | OPEN |
| Přírůstkové číslo: | edsair.od......3364..332b167c0482c46c132f2e1b3ab23e54 |
| Autor: | Guo, F.K., Hanhart, C., Li, G., Meißner, U.-G., Zhao, Q. |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
charmed meson
BES width [eta/c(2980)] suppression amplitude analysis [decay] eta/c(2980) --> chi/c0(3415) pi0 hadronic decay [eta/c(2980)] interpretation of experiments [numerical calculations] tree approximation High Energy Physics::Experiment ddc:530 width [psi(3685)] chiral [effective Lagrangian] violation [isospin] Nuclear Experiment hadronic decay [psi(3685)] |
| Zdroj: | Physical review / D 82(3), 034025 (2010). doi:10.1103/PhysRevD.82.034025 |
| Popis: | We show that in the transitions psi' -> h(c)pi(0) and eta '(c) -> chi(c0)pi(0) the contributions from charmed-meson loops are highly suppressed, in contrast to various other charmonium decays. We calculate the width of the psi' -> h(c)pi(0), which agrees with the recent BES-III data, and predict the width of the eta '(c) -> chi(c0)pi(0), Gamma(eta '(c) -> chi(c0)pi(0)) = 1.5 +/- 0.4 keV. A confirmation of this prediction would also provide additional support for a recent analysis of psi' -> J/psi pi(0)(eta), where loops are claimed to play a prominent role. |
| Databáze: | OpenAIRE |
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