Evidence for ${Z}_{c}^{\ifmmode\pm\else\textpm\fi{}}(3900)$ in semi-inclusive decays of $b$-flavored hadrons
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2018
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American Physical Society
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We present evidence for the exotic charged charmoniumlike state Z±c(3900) decaying to J/ψπ± in semi-inclusive weak decays of b-flavored hadrons. The signal is correlated with a parent J/ψπ+π− system in the invariant-mass range 4.2–4.7 GeV that would include the exotic structure Y(4260). The study is based on 10.4 fb−1 of p¯p collision data collected by the D0 experiment at the Fermilab Tevatron collider.
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D0 Collaboration. "Evidence for
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and