Light gauge boson in rare K decay

We study the production of a light gauge boson in K−→π−X decay, where the associated new charge current is not conserved. It is found that the process can be generated by the tree-level W-boson annihilation and loop-induced s→dX. We find that it strongly depends on the SU(3) limit or the unique gaug...

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Bibliographic Details
Main Authors: Chuan-Hung Chen, Takaaki Nomura
Format: Article
Language:English
Published: Elsevier 2016-12-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316306347