Changeset 974f5bc in git
 Timestamp:
 04/17/20 09:53:31 (5 weeks ago)
 Branches:
 master
 Children:
 5c716fa
 Parents:
 09ffaee (diff), a07b54c (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.  gitauthor:
 Pavel Demin <paveldemin@…> (04/17/20 09:53:31)
 gitcommitter:
 GitHub <noreply@…> (04/17/20 09:53:31)
 File:

 1 edited
Legend:
 Unmodified
 Added
 Removed

modules/ParticlePropagator.cc
r09ffaee r974f5bc 135 135 Double_t l, d0, dz, p, ctgTheta, phip, etap, alpha; 136 136 Double_t bsx, bsy, bsz; 137 137 Double_t s0, s1, sd; 138 138 139 const Double_t c_light = 2.99792458E8; 139 140 … … 297 298 zd = z + (TMath::Sqrt(xd * xd + yd * yd)  TMath::Sqrt(x * x + y * y)) * pz / pt; 298 299 300 // proper calculation of the DCAz coordinate 301 // s0: track circle parameter at the track origin 302 // s1: track circle parameter at the closest approach to beam pipe 303 // sd: s1s0 signed angular difference 304 s0 = atan2(y  y_c, x  x_c); 305 s1 = atan2(yd  y_c, xd  x_c); 306 sd = atan2(sin(s1  s0), cos(s1  s0)); 307 zd = z  r * pz / pt * sd; 308 299 309 // use perigee momentum rather than original particle 300 310 // momentum, since the orignal particle momentum isn't known
Note: See TracChangeset
for help on using the changeset viewer.