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Probing the chiral weak Hamiltonian at finite volumes
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Probing the chiral weak Hamiltonian at finite volumes
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| dc.contributor.author | Hernández Gamazo, Pilar | |
| dc.contributor.author | Laine, Mikko | |
| dc.date.accessioned | 2015-04-24T10:26:17Z | |
| dc.date.available | 2015-04-24T10:26:17Z | |
| dc.date.issued | 2006 | |
| dc.identifier.citation | Hernández Gamazo, Pilar Laine, Mikko 2006 Probing the chiral weak Hamiltonian at finite volumes Journal of High Energy Physics 2006 10 069-1 069-36 | |
| dc.identifier.uri | http://hdl.handle.net/10550/43367 | |
| dc.description.abstract | Non-leptonic kaon decays are often described through an effective chiral weak Hamiltonian, whose couplings ('low-energy constants') encode all non-perturbative QCD physics. It has recently been suggested that these low-energy constants could be determined at finite volumes by matching the non-perturbatively measured three-point correlation functions between the weak Hamiltonian and two left-handed flavour currents, to analytic predictions following from chiral perturbation theory. Here we complete the analytic side in two respects: by inspecting how small ('epsilon-regime') and intermediate or large ('p-regime') quark masses connect to each other, and by including in the discussion the two leading Delta I = 1/2 operators. We show that the epsilon-regime offers a straightforward strategy for disentangling the coefficients of the Delta I = 1/2 operators, and that in the p-regime finite-volume effects are significant in these observables once the pseudoscalar mass M and the box length L are in the regime ML \lsim 5.0. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Journal of High Energy Physics, 2006, vol. 2006, num. 10, p. 069-1-069-36 | |
| dc.subject | Física | |
| dc.title | Probing the chiral weak Hamiltonian at finite volumes | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2015-04-24T10:26:17Z | |
| dc.identifier.doi | 10.1088/1126-6708/2006/10/069 | |
| dc.identifier.idgrec | 037135 | |
| dc.rights.accessRights | open access | es_ES |
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