|
Título:
|
Testing QCD with hypothetical tau leptons
|
|
Autores:
|
Brodsky, S. J ;
Peláez Sagredo, José Ramón ;
Toumbas, N.
|
|
Tipo de documento:
|
texto impreso
|
|
Editorial:
|
Amer Physical Soc, 1999-08-01
|
|
Dimensiones:
|
application/pdf
|
|
Nota general:
|
info:eu-repo/semantics/openAccess
|
|
Idiomas:
|
|
|
Palabras clave:
|
Estado = Publicado
,
Materia = Ciencias: Física: Física-Modelos matemáticos
,
Materia = Ciencias: Física: Física matemática
,
Tipo = Artículo
|
|
Resumen:
|
We construct new phenomenological tests of perturbative QCD by considering a hypothetical au lepton of arbitrary mass which decays hadronically through the electromagnetic current. Its adronic branching ratio can be computed directly as an integral over the e?e? annihilation cross section ratio, R_ (e?e?). More generally, we can design a set of commensurate scale relations which test the applicability and self-consistency of leading twist QCD predictions by varying the weight function away from the form associated with the V-A decay of the physical ? . This method allows the wide range of R_(e?e?) data (or other similar observables which define an effective charge) to be used as renormalization scheme and scale invariant probes of QCD. [S0556-2821(99)05713-6].
|
|
En línea:
|
https://eprints.ucm.es/35682/1/pelaezsagredo107libre.pdf
|
