The tau-->nu tauetapi process in and beyond QCD
Mostra el registre complet de l'element
Visualització
(183.3Kb)
|
|
|
|
|
|
Bramón Planas, Albert; Narison, Stephan; Pich Zardoya, Antonio
|
|
Aquest document és un/a article, creat/da en: 1987
|
|
|
|
We estimate various sources of the tau-->nu tauetapi process by using QCD-duality sum rule information on the decay constants of standard and exotic mesons. We use the pi--> lnu l decay in order to constrain the effects of new interactions. We conclude from our analysis that in al cases, the tau-->nu tauetapi branching ration is small. We also point out that the present data on the tau-->nupi process already provide an upper limit of 0.1% on the etapi mode while the tau-->nu tauKK¯ data imply an upper limit of 0.5% if the a 0 (980)- meson is a four-quark state. |
|
Veure al catàleg Trobes
|
|
|
Aquest element apareix en la col·lecció o col·leccions següent(s)
Mostra el registre complet de l'element