experimentTable.tex

\documentclass[12pt]{article}

%\usepackage{tables}
\usepackage{rotating}
\usepackage{pbox}

\begin{document}

\begin{tabular}{p{1.5cm}p{1.5cm}p{1.5cm}p{1.5cm}p{1.5cm}p{1.5cm}p{1.5cm}}

& \begin{rotate}{60} \pbox{20cm}{protons \\ (t,He) or ($\alpha$,d)}\end{rotate} & 
  \begin{rotate}{60} \pbox{20cm}{proton holes \\ (He,t) or ($^3$He,d)}\end{rotate} &
  \begin{rotate}{60} \pbox{20cm}{neutrons \\ (p,d) or ($\alpha$,$^3$He)}\end{rotate} &
  \begin{rotate}{60} \pbox{20cm}{neutron holes \\ (d,p) or ($^3$He,$\alpha$)}\end{rotate} &
  \begin{rotate}{60} \pbox{20cm}{proton-pair holes \\ ($^3$He,n)}\end{rotate} &
  \begin{rotate}{60} \pbox{20cm}{neutron pairs \\ (p,t)}\end{rotate} \\
$^{48}$Ca & - & - & - & - & - & - \\
$^{76}$Ge & X & X & X & X & X & Y \\
$^{100}$Mo & Y & Y & Y & Y & - & X \\
$^{130}$Te & - & - & Y & Y & X & X \\
$^{136}$Xe & - & - & - & - & - & - \\
$^{150}$Nd & - & - & - & - & X & X \\
\end{tabular}

\end{document}