NAGIOS: RODERIC FUNCIONANDO
Determination of the chiral couplings L-10 and C-87 from semileptonic tau decays
Repositori DSpace/Manakin
- Inici
- Investigació
- e-prints
- 22 - Física
- Visualitza element
IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/
Determination of the chiral couplings L-10 and C-87 from semileptonic tau decays
Mostra el registre parcial de l'element
| dc.contributor.author | González Alonso, Martín | |
| dc.contributor.author | Pich Zardoya, Antonio | |
| dc.contributor.author | Prades Hernández, Joaquim | |
| dc.date.accessioned | 2015-02-27T11:00:49Z | |
| dc.date.available | 2015-02-27T11:00:49Z | |
| dc.date.issued | 2008 | |
| dc.identifier.citation | González Alonso, Martín Pich Zardoya, Antonio Prades Hernández, Joaquim 2008 Determination of the chiral couplings L-10 and C-87 from semileptonic tau decays Physical Review D 78 11 116012 | |
| dc.identifier.uri | http://hdl.handle.net/10550/42502 | |
| dc.description.abstract | Using recent precise hadronic tau-decay data on the V - A spectral function, and general properties of QCD such as analyticity, the operator product expansion, and chiral perturbation theory, we get accurate values for the QCD chiral order parameters L-10(r)(M-rho) and C-87(r)(M-rho). These two low-energy constants appear at order p(4) and p(6), respectively, in the chiral perturbation theory expansion of the V - A correlator. At order p(4) we obtain L-10(r)(M-rho) = -(5.22 +/- 0.06) x 10(-3). Including in the analysis the two-loop (order p6) contributions, we get L-10(r)(M-rho) = -(4.06 +/- 0.39) x 10(-3) and C-87(r)(M-rho) (4.89 +/- 0.19) x 10(-3) GeV-2. In the SU(2) chiral effective theory, the corresponding low-energy coupling takes the value (l) over bar (5) 13.30 +/- 0.11 at order p(4), and (l) over bar (5) 12.24 +/- 0.21 at order p(6). | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 2008, vol. 78, num. 11, p. 116012 | |
| dc.subject | Física | |
| dc.title | Determination of the chiral couplings L-10 and C-87 from semileptonic tau decays | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-02-27T11:00:50Z | |
| dc.identifier.doi | 10.1103/PhysRevD.78.116012 | |
| dc.identifier.idgrec | 048455 | |
| dc.rights.accessRights | open access | es_ES |
Visualització
(197.9Kb)
Aquest element apareix en la col·lecció o col·leccions següent(s)
-
22 - Física [3766]