Abstract
We present a study of the using semileptonic decays of the meson using the full run II integrated luminosity of in proton-antiproton collisions at a center of mass energy of 1.96 TeV collected with the D0 detector at the Fermilab Tevatron Collider. We report evidence for a narrow structure, , in the decay sequence where , which is consistent with the previous measurement by the D0 Collaboration in the hadronic decay mode, where . The mass and width of this state are measured using a combined fit of the hadronic and semileptonic data, yielding , with a significance of .
5 More- Received 29 December 2017
DOI:https://doi.org/10.1103/PhysRevD.97.092004
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Published by the American Physical Society