From 24c8bcfe7f76b20124e2862ea050f815c0f768e7 Mon Sep 17 00:00:00 2001 From: tlatorre Date: Tue, 14 Aug 2018 10:08:27 -0500 Subject: move everything to src directory --- pdg.c | 23 ----------------------- 1 file changed, 23 deletions(-) delete mode 100644 pdg.c (limited to 'pdg.c') diff --git a/pdg.c b/pdg.c deleted file mode 100644 index d6a2161..0000000 --- a/pdg.c +++ /dev/null @@ -1,23 +0,0 @@ -#include "pdg.h" -#include "math.h" - -double get_scattering_rms(double x, double p, double beta, double z, double rho) -{ - /* Returns the RMS width of the scattering angle for a particle deflected - * by many small-angle scatters after a distance `x`. `p` is the momentum - * of the particle in MeV, `beta` is the speed of the particle in units of - * the speed of light, `z` is the charge of the particle in units of the - * electron charge, and `rho` is the density of the water in units of - * g/cm^3. - * - * `x` should be in cm. - * - * Note: I'm not sure if this will work for particles other than electrons - * since the radiation length is only discussed in terms of an - * electromagnetic shower induced by electrons (see Section 33.4.2). - * - * See Equation 33.15 in - * http://pdg.lbl.gov/2018/reviews/rpp2018-rev-passage-particles-matter.pdf. */ - if (x == 0.0) return 0.0; - return (13.6/(beta*p))*z*sqrt(x*rho/RADIATION_LENGTH)*(1+0.038*log((x*z*z)/(RADIATION_LENGTH*beta*beta/rho))); -} -- cgit