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Su(2) - breaking effects for meson masses in lattice qcd

Author
Bramon, A.; Casulleras, J.
Type of activity
Journal article
Journal
Physics letters B
Date of publication
1989-12
Volume
233
Number
3
First page
429
Last page
433
DOI
https://doi.org/10.1016/0370-2693(89)91335-X Open in new window
URL
http://www.sciencedirect.com/science/article/pii/037026938991335X?via%3Dihub Open in new window
Abstract
The quenched approximation of lattice QCD for Wilson fermions is used to calculate isospin breaking effects in the pseudoscalar- and vector-meson nonets. Mass differences inside the K and K* isodoublets and mixing phenomena for p0-¿ and ¿-¿ are found to agree with the experimental data. A new and specific method of analysis is proposed and successfully tested.
Keywords
Axiomatic field theory, Colour model, Mass differences, Meson mass, SU2 theory, spontaneous symmetry breaking
Group of research
SIMCON - First-principles approaches to condensed matter physics: quantum effects and complexity

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