RICH becomes HMPID

[u/mrichter/AliRoot.git] / ITS / AliITSpidESD.cxx

diff --git a/ITS/AliITSpidESD.cxx b/ITS/AliITSpidESD.cxx
index 141c86307d6d2b56436c1b9484c7f7309bfbe6ca..2d4a26a1490c9635b58d825049fbcce09a4e9158 100644 (file)
--- a/ITS/AliITSpidESD.cxx
+++ b/ITS/AliITSpidESD.cxx
@@ -19,6 +19,8 @@
 //      Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch
 //-----------------------------------------------------------------
 
+#include <TMath.h>
+
 #include "AliITSpidESD.h"
 #include "AliESDtrack.h"
 
@@ -39,7 +41,7 @@ Double_t AliITSpidESD::Bethe(Double_t bg) {
   /*if (bg<3.5) 
      bethe=(1.+ bg2)/bg2*(log(5940*bg2) - bg2/(1.+ bg2));
   else*/  // not 100% clear why...
-     bethe=(1.+ bg2)/bg2*(log(3.5*5940*bg) - bg2/(1.+ bg2));
+  bethe=(1.+ bg2)/bg2*(TMath::Log(3.5*5940*bg) - bg2/(1.+ bg2));
   return bethe/11.091;
 }