+++ /dev/null
-%\parskip 8pt plus 1pt minus 1pt
-%\parindent 0pt
-
-\newcommand{\Jpsi}{{J\!/\!\psi\,}}
-\newcommand{\xfrac}[2]{{^{#1}\!/\!_{#2}\,}}
-\newcommand{\sfrac}[2]{{\sqrt{^{#1}\!/\!_{#2}\,}}}
-\newcommand{\tfrac}[2]{{\textstyle#1\over\textstyle#2}}
-\newcommand{\ket}[1]{{|#1\rangle\,}}
-\newcommand{\bra}[1]{{\,\langle#1|\,}}
-\newcommand{\braket}[2]{{\,\langle#1|#2\rangle\,}}
-%\newcommand{\particip}[1]{\par\noindent{\sl #1}\ }
-%\newcommand{\convener}[1]{\particip{\underline{#1}}}
-%\newcommand{\convenerx}[1]{{\bf(#1)}}
-\newcommand{\particip}[1]{}
-\newcommand{\convener}[1]{}
-\newcommand{\convenerx}[1]{}
-
-\newcommand{\contrib}[2]{\par\noindent{\sl #1\ contributed:} #2}