Low energy constants from K(l4) form-factors

G. Amorós; J. Bijnens; P. Talavera

doi:10.1016/S0370-2693(00)00384-1

Low energy constants from K(l4) form-factors

G. Amorós, J. Bijnens, P. Talavera

Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Sammanfattning

We have calculated the form-factors F and G in K → ππlν decays (K(l4)) to two-loop order in Chiral Perturbation Theory (ChPT). Combining this together with earlier two-loop calculations an updated set of values for the L(i)/(r), the ChPT constants at O(p⁴), is obtained. We discuss the uncertainties in the determination and the changes compared to previous estimates. (C) 2000 Elsevier Science B.V.

Originalspråk	engelska
Sidor (från-till)	71-76
Antal sidor	6
Tidskrift	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volym	480
Nummer	1-2
DOI	https://doi.org/10.1016/S0370-2693(00)00384-1
Status	Published - 2000 maj 4

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abstract = "We have calculated the form-factors F and G in K → ππlν decays (K(l4)) to two-loop order in Chiral Perturbation Theory (ChPT). Combining this together with earlier two-loop calculations an updated set of values for the L(i)/(r), the ChPT constants at O(p4), is obtained. We discuss the uncertainties in the determination and the changes compared to previous estimates. (C) 2000 Elsevier Science B.V.",

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AU - Bijnens, J.

AU - Talavera, P.

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N2 - We have calculated the form-factors F and G in K → ππlν decays (K(l4)) to two-loop order in Chiral Perturbation Theory (ChPT). Combining this together with earlier two-loop calculations an updated set of values for the L(i)/(r), the ChPT constants at O(p4), is obtained. We discuss the uncertainties in the determination and the changes compared to previous estimates. (C) 2000 Elsevier Science B.V.

AB - We have calculated the form-factors F and G in K → ππlν decays (K(l4)) to two-loop order in Chiral Perturbation Theory (ChPT). Combining this together with earlier two-loop calculations an updated set of values for the L(i)/(r), the ChPT constants at O(p4), is obtained. We discuss the uncertainties in the determination and the changes compared to previous estimates. (C) 2000 Elsevier Science B.V.

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AN - SCOPUS:0034603945

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

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Low energy constants from K(l4) form-factors

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