K to pi pi decays in SU(2) Chiral Perturbation Theory
(2009) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 680(5). p.466-470- Abstract
- We study the decays $K\to\pi\pi$ in one-loop
two-flavour Chiral Perturbation Theory.
We provide arguments why the calculation of the coefficient of the
pionic chiral logarithm
$\logm = M^2\log M^2$
is unique and then perform the calculation. As a check we perform the
reduction of the known three-flavour result.
Our result can be used to perform the extrapolation to the physical
pion mass of direct lattice QCD calculations of $K\to\pi\pi$
at fixed $m_s$ or $m_K^2$.
The underlying arguments
are expected to be valid for heavier particles and other processes as well.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1482618
- author
- Bijnens, Johan LU and Celis, Alejandro
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- 11.30.Rd Chiral symmetries, 12.39.Fe Chiral Lagrangians, 13.20.Eb Decays of K mesons
- in
- Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
- volume
- 680
- issue
- 5
- pages
- 466 - 470
- publisher
- Elsevier
- external identifiers
-
- wos:000271363200014
- scopus:70349417789
- ISSN
- 0370-2693
- DOI
- 10.1016/j.physletb.2009.09.048
- language
- English
- LU publication?
- yes
- id
- a713ddb4-171e-4ae1-a1d6-9ffc004c2fdb (old id 1482618)
- alternative location
- http://arxiv.org/abs/arXiv:0906.0302
- http://dx.doi.org/10.1016/j.physletb.2009.09.048
- date added to LUP
- 2016-04-01 13:12:02
- date last changed
- 2024-04-10 01:57:31
@article{a713ddb4-171e-4ae1-a1d6-9ffc004c2fdb, abstract = {{We study the decays $K\to\pi\pi$ in one-loop<br/><br> two-flavour Chiral Perturbation Theory.<br/><br> We provide arguments why the calculation of the coefficient of the<br/><br> pionic chiral logarithm<br/><br> $\logm = M^2\log M^2$<br/><br> is unique and then perform the calculation. As a check we perform the<br/><br> reduction of the known three-flavour result. <br/><br> Our result can be used to perform the extrapolation to the physical<br/><br> pion mass of direct lattice QCD calculations of $K\to\pi\pi$<br/><br> at fixed $m_s$ or $m_K^2$. <br/><br> The underlying arguments<br/><br> are expected to be valid for heavier particles and other processes as well.}}, author = {{Bijnens, Johan and Celis, Alejandro}}, issn = {{0370-2693}}, keywords = {{11.30.Rd Chiral symmetries; 12.39.Fe Chiral Lagrangians; 13.20.Eb Decays of K mesons}}, language = {{eng}}, number = {{5}}, pages = {{466--470}}, publisher = {{Elsevier}}, series = {{Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics}}, title = {{K to pi pi decays in SU(2) Chiral Perturbation Theory}}, url = {{http://dx.doi.org/10.1016/j.physletb.2009.09.048}}, doi = {{10.1016/j.physletb.2009.09.048}}, volume = {{680}}, year = {{2009}}, }