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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3638Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.creator | Pich, Antonio | - |
| dc.creator | Rosell, Ignasi | - |
| dc.creator | Sanz-Cillero, Juan José | - |
| dc.date | 2008-04-17T23:06:56Z | - |
| dc.date | 2008-04-17T23:06:56Z | - |
| dc.date | 2008-07-02 | - |
| dc.date.accessioned | 2017-01-31T01:02:29Z | - |
| dc.date.available | 2017-01-31T01:02:29Z | - |
| dc.identifier | Journal of High Energy Physics 07: 014 (2008) | - |
| dc.identifier | http://hdl.handle.net/10261/3638 | - |
| dc.identifier | 10.1088/1126-6708/2008/07/014 | - |
| dc.identifier.uri | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3638 | - |
| dc.description | 50 páginas, 3 figuras, 5 tablas.-- arXiv:0803.1567v1 | - |
| dc.description | Using the resonance chiral theory Lagrangian, we perform a calculation of the vector and axial-vector two-point functions at the next-to-leading order (NLO) in the 1/N(C) expansion. We have analyzed these correlators within the single-resonance approximation and have also investigated the corrections induced by a second multiplet of vector and axial-vector resonance states. Imposing the correct QCD short-distance constraints, one determines the difference of the two correlators Pi(t) = Pi_VV(t)- Pi_AA(t) in terms of the pion decay constant and resonance masses. Its low momentum expansion fixes then the low-energy chiral couplings L_10 and C_87 at NLO, keeping full control of their renormalization scale dependence. At mu_0=0.77 GeV, we obtain L_10(mu_0) = (-4.4 \pm 0.9)10^{-3} and C_87^r(mu_0)=(3.1 \pm 1.1)10^{-5}. | - |
| dc.description | This work has been supported by the Spanish Ministry of Education, under grants FPA2007-60323 and CSD2007-00042 (Consolider Project CPAN), and by the EU MRTN-CT-2006-035482 (FLAVIAnet). | - |
| dc.description | Peer reviewed | - |
| dc.format | 476283 bytes | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | Institute of Physics Publishing | - |
| dc.relation | Preprint | - |
| dc.relation | http://dx.doi.org/10.1088/1126-6708/2008/07/014 | - |
| dc.rights | openAccess | - |
| dc.subject | QCD | - |
| dc.subject | Chiral Lagrangians | - |
| dc.subject | 1/N Expansion | - |
| dc.title | Form-factors and current correlators: chiral couplings L_10(mu) and C_87(mu) at NLO in 1/N(C) | - |
| dc.type | Pre-print | - |
| Appears in Collections: | Digital Csic | |
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