Пример #1
0
 def __init__(self, codename, title, ngenerator, e_decprodcut, br, colour=1, extracuts="(1 > 0)"):
     self.codename = codename
     self.title = title
     self.ngenerator = poisson_counted(ngenerator)
     self.decprodcut = e_decprodcut
     self.br = br
     self.rootcolour = colour
     self.excut = extracuts
Пример #2
0
    def expected_yield(self, nsurvive):
        """Calculate the expected yield of events in 3/fb"""
        from kstmm.lumidata import FULLDATALUMI, FD, FS, FLAMBDA, SIGMABBBAR

        # work out which fraction
        if self.codename.count("Bs"):
            hadrF = FS
        elif self.codename.count("Bu") or self.codename.count("Bd"):
            hadrF = FD
        elif self.codename.count("Lb"):
            hadrF = FLAMBDA
        else:
            print "ERROR"
            return real("-1 +/- 0")

        # calculate expected events
        nBHadrons = FULLDATALUMI * 2 * hadrF * SIGMABBBAR
        return self.br * nBHadrons * poisson_counted(nsurvive) * self.decprodcut / self.ngenerator