4.3.13 SUBROUTINE ZDMBRM(P, PMINBR, ATMNB, NEWTRK, ERROR) : Make BReMsstrahlung

This routine generates a brems-strahlung gamma off the electron with momentum P, and returns the momenta of gamma and of the electron after radiation in NEWTRK.

ARGUMENTS:

INPUT :

    P : 3-momentum of the incomming electron (in GeV/c)
    PMINBR : Minimum P of electron to consider brems.
    ATMNB : Atom-number of the material

OUTPUT :

    NEWTRK(1-3,1) : 4-momentum of the out-going photon (in GeV/c)
    NEWTRK(1-3,2) :     "      "   "   "    "   electron (in GeV/c)
    ERROR : Error-flag : 0 -> OK
                         1 -> Below cutoff
                         2 -> Exhausted number of iterations

IMPLICIT INPUTS:

    From  /ZTAUX/ : PMINBR : Minimum electron momentum to generate brems.

IMPLICIT OUTPUTS:

    none.

CALLED BY :

ZDBREM, generate BREMsstrahlung (see 4.3.9).

CALLED ROUTINE(S):

ZURECT (see 4.7.14)

(To get a RECTangular random-number)

ZDROPA (see 4.3.15)

(To Rotate the generated Gamma-Electron Pair.)

SIDE EFFECTS:

none

AUTHORS:

M. Berggren, UFRJ (adopted from DELSIM's SXBMS)

CREATION DATE:

31-mar-1996