This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1007/JHEP02(2020)069 in citations.
Please use the identifier: http://hdl.handle.net/2128/26765 in citations.
A new theory framework for the electroweak radiative corrections in Kl3 decays
A new theory framework for the electroweak radiative corrections in Kl3 decays
We propose a new theory framework to study the electroweak radiative corrections in Kl3 decays by combining the classic current algebra approach with the modern effective field theory. Under this framework, the most important O(GFα) radiative corrections are described by a single tensor Tμν involvin...
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Personal Name(s): | Seng, Chien-Yeah (Corresponding author) |
---|---|
Galviz, Daniel / Meißner, Ulf-G. | |
Contributing Institute: |
Theorie der Starken Wechselwirkung; IAS-4 Theorie der starken Wechselwirkung; IKP-3 |
Published in: | Journal of high energy physics, 2020 (2020) 2, S. 69 |
Imprint: |
[Trieste]
SISSA
2020
|
DOI: |
10.1007/JHEP02(2020)069 |
Document Type: |
Journal Article |
Research Program: |
TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik Computational Science and Mathematical Methods |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/26765 in citations.
We propose a new theory framework to study the electroweak radiative corrections in Kl3 decays by combining the classic current algebra approach with the modern effective field theory. Under this framework, the most important O(GFα) radiative corrections are described by a single tensor Tμν involving the time-ordered product between the charged weak current and the electromagnetic current, and all remaining pieces are calculable order-by-order in Chiral Perturbation Theory. We further point out a special advantage in the K0l3 channel that it suffers the least impact from the poorly-constrained low-energy constants. This finding may serve as a basis for a more precise extraction of the matrix element Vus in the future. |