Showing papers by "D. M. Asner published in 2019"
University of Oxford1, Purdue University2, Rensselaer Polytechnic Institute3, Rice University4, University of Rochester5, Rutherford Appleton Laboratory6, Syracuse University7, Wayne State University8, University of Bristol9, Pacific Northwest National Laboratory10, Carleton University11, Carnegie Mellon University12, University of Chicago13, Cornell University14, University of Florida15, George Mason University16, University of Illinois at Urbana–Champaign17, Indian Institute of Technology Madras18, Indiana University19, University of Kansas20, Luther College21, University of Minnesota22, Northwestern University23
TL;DR: In this paper, the decay of the center-of-mass energy (COMEGA) was studied and the four-quark content of the decay was found to be at least 0.20% at the 90% confidence level.
Abstract: We present the first search for the decay ${D}_{s}^{+}\ensuremath{\rightarrow}\ensuremath{\omega}{e}^{+}\ensuremath{
u}$ to test the four-quark content of the ${D}_{s}^{+}$ and the $\ensuremath{\omega}\mathrm{\text{\ensuremath{-}}}\ensuremath{\phi}$ mixing model for this decay. We use $586\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collision data collected at a center-of-mass energy of 4170 MeV. We find no evidence of a signal, and set an upper limit on the branching fraction of $\mathcal{B}({D}_{s}^{+}\ensuremath{\rightarrow}\ensuremath{\omega}{e}^{+}\ensuremath{
u})l0.20%$ at the 90% confidence level.
6 citations