Irt algo

I have added the single photo electron Cherenkov angle and the residual in the benchmark plot (global,function of momentum and eta) and changed everywhere Estimated to Reconstructed

benchmarks/rich/src/CherenkovPIDAnalysis.cc

@@ -47,7 +47,7 @@ namespace benchmarks {
         );
     m_speTheta_dist = new TH1D(
       "speTheta_dist_"+m_rad_name_trun,
-      "Reconstructed Photon SPE #theta for" +m_rad_title+";#theta[mrad]",
+      "Reconstructed Photon SPE #theta for "+m_rad_title+";#theta[mrad]",
       Tools::theta_bins, 0, Tools::theta_max
     );