Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/93437
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Type: | Journal article |
Title: | Study of kaon decay to two pions |
Author: | Liu, Z. Carrillo-Serrano, M. Thomas, A. |
Citation: | Physical Review D: Particles, Fields, Gravitation and Cosmology, 2015; 91(1):014028-1-014028-8 |
Publisher: | American Physical Society |
Issue Date: | 2015 |
ISSN: | 1550-7998 1550-2368 |
Statement of Responsibility: | Zhan-Wei Liu, M. E. Carrillo-Serrano and A. W. Thomas |
Abstract: | The weak decay of the kaon to two pions is studied within the model of Nambu and Jona-Lasinio. Using the standard effective weak Hamiltonian, both the decay amplitude arising from an intermediate state sigma meson and the direct decay amplitude are calculated. The effect of final state interactions is also included. When the matching scale is chosen such that the decay amplitude with isospin I = 2 is close to its experimental value, our model including the sigma meson contributes up to 80% of the total I = 0 amplitude. This supports recent suggestions that the sigma meson should play a vital role in explaining the Delta I = 1/2 rule in this system. |
Rights: | © 2015 American Physical Society |
DOI: | 10.1103/PhysRevD.91.014028 |
Grant ID: | http://purl.org/au-research/grants/arc/FL0992247 |
Published version: | http://dx.doi.org/10.1103/physrevd.91.014028 |
Appears in Collections: | Aurora harvest 7 Chemistry and Physics publications |
Files in This Item:
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hdl_93437.pdf | Published version | 472.11 kB | Adobe PDF | View/Open |
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