GeomConverter/src/org/lcsim/material
diff -u -r1.12 -r1.13
--- MaterialCalculator.java 21 Jan 2006 19:27:50 -0000 1.12
+++ MaterialCalculator.java 21 Jan 2006 23:44:03 -0000 1.13
@@ -103,14 +103,14 @@
/* Avogadro's number */
public static final double N_A = 6.0221415e23;
- /* classical electron radius in centimeters */
- public static final double r_e = 2.817940325e-13;
+ /* classical electron radius in cm */
+ public static final double r_e = 2.81794032528e-13;
//public static final double clight = 2.99792458e08; // m/s
/*
* @param material org.lcsim.material.Material to be used for A, Z, density, etc.
- * @param pT particle momentum -CarolineMilstene- !!! UNITS!!! we use GeV, it should be in MeV
+ * @param p particle momentum -CarolineMilstene- !!! UNITS!!! we use GeV, it should be in MeV
* @param mass particle mass (MeV/c)
* @param charge particle charge
* @param distance path length in cm to scale the dEdx result
@@ -123,8 +123,6 @@
double zeff = material.getZeff();
double aeff = material.getAeff();
double ZoverA = zeff / aeff;
- double M_e = 0.510998918 ;// in (MeV) -CarolineMilstene (Ja nuary 06)-Jeremy I did not find it elswhere !!!
- double r_e = 2.81794032528E-13; // in (cm) - CarolinneMilstene (January 06)
/* K matches PDG, pg. 238 --> 0.307075 in MeV g-1 cm2 */
double K = ( (4*PI) * N_A * (r_e * r_e) * M_e );