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Pion radiative weak decays in nonlocal chiral quark models
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Pion radiative weak decays in nonlocal chiral quark models
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| dc.contributor.author | Gómez Dumm, Daniel | |
| dc.contributor.author | Noguera Puchol, Santiago | |
| dc.contributor.author | Scoccola, N.N. | |
| dc.date.accessioned | 2014-03-20T12:19:58Z | |
| dc.date.available | 2014-03-20T12:19:58Z | |
| dc.date.issued | 2011 | |
| dc.identifier.citation | Gomez Dumm, D. Noguera Puchol, Santiago Scoccola, N.N. 2011 Pion radiative weak decays in nonlocal chiral quark models Physics Letters B 698 3 236 242 | |
| dc.identifier.uri | http://hdl.handle.net/10550/33629 | |
| dc.description.abstract | We analyze the radiative pion decay pi(+) -> e(+) nu(e)gamma within nonlocal chiral quark models that include wave function renormalization. In this framework we calculate the vector and axial-vector form factors F-V and F-A at q(2) = 0 ¿ where q(2) is the e(+) nu(e) squared invariant mass ¿ and the slope a of F-V (q(2)) at q(2) -> 0. The calculations are carried out considering different nonlocal form factors, in particular those taken from lattice QCD evaluations, showing a reasonable agreement with the corresponding experimental data. The comparison of our results with those obtained in the (local) NJL model and the relation of F-V and a with the form factor in pi(0) -> gamma*gamma decays are discussed. | |
| dc.relation.ispartof | Physics Letters B, 2011, vol. 698, num. 3, p. 236-242 | |
| dc.subject | Física nuclear | |
| dc.subject | Partícules (Física nuclear) | |
| dc.title | Pion radiative weak decays in nonlocal chiral quark models | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-03-20T12:19:58Z | |
| dc.identifier.doi | 10.1016/j.physletb.2011.03.002 | |
| dc.identifier.idgrec | 072147 | |
| dc.rights.accessRights | open access | es_ES |
| dc.identifier.url | 10.1016/j.physletb.2011.03.002 |
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