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The vector form factor at the next-to-leading order in 1/N-C: chiral couplings L-9(mu) and C-88(mu)-C-90(mu)
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The vector form factor at the next-to-leading order in 1/N-C: chiral couplings L-9(mu) and C-88(mu)-C-90(mu)
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| dc.contributor.author | Pich Zardoya, Antonio | |
| dc.contributor.author | Rosell Escribà, Ignasi | |
| dc.contributor.author | Sanz Cillero, Juan José | |
| dc.date.accessioned | 2015-02-27T12:06:47Z | |
| dc.date.available | 2015-02-27T12:06:47Z | |
| dc.date.issued | 2011 | |
| dc.identifier.citation | Pich Zardoya, Antonio Rosell Escribà, Ignasi Sanz Cillero, Juan José 2011 The vector form factor at the next-to-leading order in 1/N-C: chiral couplings L-9(mu) and C-88(mu)-C-90(mu) Journal of High Energy Physics 2011 2 109 | |
| dc.identifier.uri | http://hdl.handle.net/10550/42517 | |
| dc.description.abstract | Using the Resonance Chiral Theory Lagrangian, we perform a calculation of the vector form factor of the pion at the next-to-leading order (NLO) in the 1/N(C) expansion. Imposing the correct QCD short-distance constraints, one fixes the amplitude in terms of the pion decay constant F and resonance masses. Its low momentum expansion determines then the corresponding O(p4) and O(p6) low-energy chiral couplings at NLO, keeping control of their renormalization scale dependence. At mu0=0.77 GeV, we obtain L9(mu0) = (7.9 \pm 0.4) 10^{-3} and C88(mu0)-C90(mu0)=(-4.6 \pm 0.4) 10^{-5}. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Journal of High Energy Physics, 2011, vol. 2011, num. 2, p. 109 | |
| dc.subject | Física | |
| dc.title | The vector form factor at the next-to-leading order in 1/N-C: chiral couplings L-9(mu) and C-88(mu)-C-90(mu) | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-02-27T12:06:47Z | |
| dc.identifier.doi | 10.1007/JHEP02(2011)109 | |
| dc.identifier.idgrec | 068042 | |
| dc.rights.accessRights | open access | es_ES |
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