Triangle singularity in $$B^-\rightarrow K^-X(3872);X\rightarrow \pi ^0\pi ^+\pi ^-$$ B-→K-X(3872);X→π0π+π- and the X(3872) mass
Abstract We evaluate the contribution to the X(3872) width from a triangle mechanism in which the X decays into $$D^{*0}{\bar{D}}^0 -cc$$ D∗0D¯0-cc , then the $$D^{*0} ({\bar{D}}^{*0})$$ D∗0(D¯∗0) decays into $$D^0 \pi ^0$$ D0π0 ($${\bar{D}}^0 \pi ^0$$ D¯0π0 ) and the $$D^0 {\bar{D}}^0$$ D0D¯0 fuse...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-05-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-8014-7 |