%=======================
%Feynman slashed letters
%=======================

% syntax: \LaTeX{}

\newcommand{\be}{\begin{equation}}
\newcommand{\ee}{\end{equation}}
\newcommand{\bea}{\begin{eqnarray}}
\newcommand{\eea}{\end{eqnarray}}

\newcommand{\bi}{\begin{itemize}}
\newcommand{\ei}{\end{itemize}}

\newcommand{\bv}{\begin{verbatim}}
\newcommand{\ev}{\end{verbatim}}

\newcommand{\beas}{\begin{eqnarray*}}
\newcommand{\eeas}{\end{eqnarray*}}

\newcommand{\vtwo}{\vspace{0.2cm}}
\newcommand{\vthree}{\vspace{0.3cm}}
\newcommand{\vfive}{\vspace{0.5cm}}

\newcommand{\htwo}{\hspace{0.2cm}}
\newcommand{\hthree}{\hspace{0.3cm}}
\newcommand{\hfive}{\hspace{0.5cm}}

\newcommand{\go}{{\gamma_{0}}}
\newcommand{\betao}{{\beta_{0}}}

\newcommand{\tr}{{\rm Tr}\,}

\newcommand{\gmud}{{\gamma_{\mu}}}
\newcommand{\gmuu}{{\gamma^{\mu}}}

\newcommand{\gnud}{{\gamma_{\nu}}}
\newcommand{\gnuu}{{\gamma^{\nu}}}

\newcommand{\ftwo}{{F_{2}^{D(3)}}}
\newcommand{\fd}{{F_{2}^{D(3)}}}
\newcommand{\ftwotwo}{{F_{2}^{D(2)}}}
\newcommand{\ftwopom}{{F_{2}^{\pom}}}

\newcommand{\nnot}{\!\!\not\!}
\newcommand{\backvspace}{\!\!\!\!\!\!\!}
\newcommand{\pnot}{\!\not\!}

\newcommand{\ka}{{k_{A}}}
\newcommand{\kb}{{k_{B}}}
\newcommand{\kc}{{k_{C}}}
\newcommand{\pe}{{p_{e}}}
\newcommand{\pep}{{p_{e}^{\prime}}}
\newcommand{\pa}{{p_{A}}}
\newcommand{\pb}{{p_{B}}}
\newcommand{\Pp}{{P_{p}}}
\newcommand{\Ppp}{{P_{p}^{\prime}}}



\newcommand{\thetalab}{\theta_{\rm lab}}
\newcommand{\thetacms}{\theta_{\rm cms}}
\newcommand{\thetap}{{\theta^{\prime}}}
\newcommand{\gammast}{{\gamma^{*}}}
\newcommand{\betast}{{\beta^{*}}}
\newcommand{\thetaone}{{\theta_{1}}}
\newcommand{\thetatwo}{{\theta_{2}}}
\newcommand{\thetatwop}{{\theta_{2}^{\prime}}}

\newcommand{\degg}{{^{\circ}}}
\newcommand{\cms}{{^{\rm cms}}}
\newcommand{\lab}{{^{\rm lab}}}

\newcommand{\kone}{{k_{1}}}
\newcommand{\ktwo}{{k_{2}}}

\newcommand{\ha}{{\frac{1}{2}}}

\newcommand{\mprot}{{m_{P}^2}}
\newcommand{\mprotfour}{{m_{P}^4}}

\newcommand{\pom}{{I\!\!P}}
\newcommand{\xpom}{{x_{I\!\!P}}}
\newcommand{\xsubpom}{{x_{\,\!_{I\!\!P}}}}
\newcommand{\alphapom}{{\alpha_{I\!\!P}}}
\newcommand{\alphapomt}{{\alpha_{I\!\!P}(\tpom)}}
\newcommand{\intercept}{{\alpha_{I\!\!P}(0)}}
\newcommand{\xpomp}{{x_{I\!\!P}P}}
\newcommand{\xpompplkc}{{x_{I\!\!P}P+k_{c}}}
\newcommand{\xpomppltwokc}{{x_{I\!\!P}P+2k_{c}}}
\newcommand{\twoxpompplkc}{{2x_{I\!\!P}P+k_{c}}}
\newcommand{\minxpompminkc}{{-x_{I\!\!P}P-k_{c}}}
\newcommand{\minxpompmintwokc}{{-x_{I\!\!P}P-2k_{c}}}
\newcommand{\xpompminkc}{{x_{I\!\!P}P-k_{c}}}
\newcommand{\minxpompplkc}{{-x_{I\!\!P}P+k_{c}}}
\newcommand{\mintwoxpompminkc}{{-2x_{I\!\!P}P-k_{c}}}

\newcommand{\xbj}{{x_{\rm Bj}}}

\newcommand{\xpmin}{{x_{I\!\!P}^{\rm min}}}
\newcommand{\xpmax}{{x_{I\!\!P}^{\rm max}}}

\newcommand{\tpom}{{t_{I\!\!P}}}
\newcommand{\rmd}{{{\rm d}}}

\newcommand{\subsigma}{{_{\sigma}}}
\newcommand{\subtau}{{_{\tau}}}
\newcommand{\subbeta}{{_{\beta}}}
\newcommand{\subalpha}{{_{\alpha}}}
\newcommand{\sublambda}{{_{\lambda}}}
\newcommand{\submu}{{_{\mu}}}
\newcommand{\subnu}{{_{\nu}}}
\newcommand{\submup}{{_{\mu'}}}
\newcommand{\subnup}{{_{\nu'}}}

\newcommand{\supsigma}{{_{\sigma}}}
\newcommand{\suptau}{{_{\sigma}}}
\newcommand{\supbeta}{{_{\beta}}}
\newcommand{\supalpha}{{^{\alpha}}}
\newcommand{\suplambda}{{_{\lambda}}}
\newcommand{\supmu}{{_{\mu}}}
\newcommand{\supnu}{{_{\nu}}}
\newcommand{\supmup}{{_{\mu'}}}
\newcommand{\supnup}{{_{\nu'}}}

\newcommand{\deluall}{{\delta^{\alpha}_{\,\,\lambda}}}
\newcommand{\delllls}{{\delta_{\lambda\sigma}}}
\newcommand{\dellsua}{{\delta_{\sigma}^{\,\,\alpha}}}
\newcommand{\delubul}{{\delta^{\beta\lambda}}}
\newcommand{\delltub}{{\delta_{\tau}^{\,\,\beta}}}
\newcommand{\delullt}{{\delta^{\lambda}_{\,\,\tau}}}
\newcommand{\deluaub}{{\delta^{\alpha\beta}}}
\newcommand{\dellslt}{{\delta_{\sigma\tau}}}
\newcommand{\delualt}{{\delta^{\alpha}_{\,\,\tau}}}
\newcommand{\delubls}{{\delta^{\beta}_{\,\,\sigma}}}
\newcommand{\deluAuB}{{\delta^{AB}}}
\newcommand{\delumun}{{\delta^{\mu\nu}}}

\newcommand{\mxsq}{{M_X^2}}
\newcommand{\qsq}{{Q^2}}
\newcommand{\ptsq}{{p_{\bot}^2}}
\newcommand{\pt}{{p_{\bot}}}
\newcommand{\ptsqmin}{{p_{\bot\,{\rm min}}^2}}
\newcommand{\ptsqmax}{{p_{\bot\,{\rm max}}^2}}
\newcommand{\kmin}{{k^2_{\rm min}}}
\newcommand{\ksqmin}{{k^2_{\rm min}}}
\newcommand{\ksqmax}{{k^2_{\rm max}}}
\newcommand{\kqsq}{{k_{q}^{2}}}
\newcommand{\ksq}{{k^{2}}}
\newcommand{\etamax}{{\eta_{\rm max}}}
\newcommand{\stot}{{s_{\rm Tot}}}
\newcommand{\Stot}{{S_{\rm Tot}}}
\newcommand{\gev}{\,{\rm GeV}}

\newcommand{\etamaxexp}{{\eta_{\rm max}^{\rm expt}}}
\newcommand{\etamaxth}{{\eta_{\rm max}^{\rm th}}}

\newcommand{\mathe}{{\tt mathematica }}


\def \asl{\lower .12ex\hbox{/}\mkern -9.5mu a}
\def \qsl{\raise .06ex\hbox{/}\mkern -9.5mu q}
\def \pws{\lower .12ex\hbox{/}\mkern -9.5mu p}
\def \ksl{\raise .06ex\hbox{/}\mkern -9.5mu k}
\def \spartial{\raise .12ex\hbox{/}\mkern -10.5mu \partial}
\def \Asl{\,\raise .12ex\hbox{/}\mkern -13mu A}
\def \Dsl{\,\raise .06ex\hbox{/}\mkern -15mu D}
\def\Ds{{D\hskip -2.80mm/}\, }

\def\lsim{\mathrel{\rlap{\lower4pt\hbox{\hskip1pt$\sim$}}
    \raise1pt\hbox{$<$}}}                % less than or approx. symbol
\def\gsim{\mathrel{\rlap{\lower4pt\hbox{\hskip1pt$\sim$}}
    \raise1pt\hbox{$>$}}}                % greater than or approx. symbol

