Philip R. Page
Published 1998-09-29, updated 1999-10-05Version 3
We demonstate from heavy quark symmetry that the width of D(2637) claimed by the DELPHI Collaboration is inconsistent with any bound state with one charm quark predicted in the D(2637) mass region, except possibly D*_3, D_2 or D'. The former two possibilities are favoured by heavy quark mass relations.
Comments: 12 pages, LaTeX. Minor correction
Journal: Phys.Rev. D60 (1999) 057501
Deriving the existence of $B\bar{B}^*$ bound states from the X(3872) and Heavy Quark Symmetry
On the structure observed in the in-flight ${}^{3}\text{He} ( K^{-} , \, Λp ) n$ reaction at J-PARC
Is the exotic $X(5568)$ a bound state?
