Theoretical interpretation of the Ds+→π+π0η decay and the nature of a0(980)
In a recent paper [1], the BESIII Collaboration reported the so-called first observation of pure W-annihilation decays Ds+→a0+(980)π0 and Ds+→a00(980)π+. The measured absolute branching fractions are, however, puzzlingly larger than those of other measured pure W-annihilation decays by at least one...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320300836 |