NAGIOS: RODERIC FUNCIONANDO

Spectral distribution for the decay tau -> v(tau)K pi

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Spectral distribution for the decay tau -> v(tau)K pi

Mostra el registre parcial de l'element

dc.contributor.author Jamin, Matthias
dc.contributor.author Pich Zardoya, Antonio
dc.contributor.author Portolés Ibáñez, Jorge
dc.date.accessioned 2015-02-27T10:31:59Z
dc.date.available 2015-02-27T10:31:59Z
dc.date.issued 2006
dc.identifier.citation Jamin, Matthias Pich Zardoya, Antonio Portolés Ibáñez, Jorge 2006 Spectral distribution for the decay tau -> v(tau)K pi Physics Letters B 640 4 176 181
dc.identifier.uri http://hdl.handle.net/10550/42494
dc.description.abstract With the newly available data sets on hadronic tau decays from the B-factories BaBar and BELLE, and future data from BESIII, precise information on the decay distributions will soon become available. This calls for an improvement of the decay spectra also on the theoretical side. In this work, the distribution function for the decay tau -> v(tau)K pi will be presented with the relevant K pi vector and scalar forth factors being calculated in the framework of the resonance chiral theory, also taking into account additional constraints from dispersion relations and short-distances. As a by-product the slope and curvature of the vector form factor F-+(K pi)(s) are determined to be lambda'(+) = 25.6 x 10(-3) and lambda'(+) = 1.31 x 10(-3) respectively. From our approach it appears that it should be possible to obtain information on the low lying scalar K*(800) as well as the sec0 ond vector K*(1410) resonances from the tau decay data. In particular, the exclusive branching fraction of the scalar component is found to be B[tau -> vT (K pi)(S-wave)] = (3.88 +/- 0.19) x 10(-4).
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 2006, vol. 640, num. 4, p. 176-181
dc.subject Física
dc.title Spectral distribution for the decay tau -> v(tau)K pi
dc.type journal article es_ES
dc.date.updated 2015-02-27T10:31:59Z
dc.identifier.doi 10.1016/j.physletb.2006.06.058
dc.identifier.idgrec 036289
dc.rights.accessRights open access es_ES

Visualització       (173.8Kb)

Aquest element apareix en la col·lecció o col·leccions següent(s)

Mostra el registre parcial de l'element

Cerca a RODERIC

Cerca avançada

Visualitza

Estadístiques