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HepPDT Reference DocumentationHepPDT |
00001 // ---------------------------------------------------------------------- 00002 // 00003 // TempParticleData.cc 00004 // Author: Lynn Garren 00005 // 00006 // ---------------------------------------------------------------------- 00007 00008 #include "HepPDT/defs.h" 00009 #include "HepPDT/TempParticleData.hh" 00010 00011 namespace HepPDT { 00012 00013 double calculateWidthFromLifetime( double lt ) 00014 { 00015 // totalwidth = hbar / lifetime 00016 static double epsilon = 1.0e-20; 00017 static double hbar = 6.58211889e-25; // in GeV s 00018 if( lt < epsilon ) { return 0.; } 00019 return hbar/lt; 00020 } 00021 00022 } // HepPDT