Dark-sector physics in the search for the rare decays $$K^+\rightarrow \pi ^+ \nu {\bar{\nu }}$$ K+→π+νν¯ and $$K_L\rightarrow \pi ^0 \nu {\bar{\nu }}$$ KL→π0νν¯
Abstract We compute the contribution of the decays $$K_L \rightarrow \pi ^0 Q {\bar{Q}}$$ KL→π0QQ¯ and $$K^+ \rightarrow \pi ^+ Q {\bar{Q}}$$ K+→π+QQ¯ , where Q is a dark fermion of the dark sector, to the measured widths for the rare decays $$K^+\rightarrow \pi ^+ \nu {\bar{\nu }}$$ K+→π+νν¯ and $$...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
SpringerOpen
2020-06-01
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Series: | European Physical Journal C: Particles and Fields |
Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-8103-7 |