VBF_Z.py

# Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration

from ..external import ExternalVBFNLO
from ..powheg_V2 import PowhegV2


class VBF_Z(PowhegV2):
    """! Default Powheg configuration for Z-boson production through vector boson fusion.

    Create a configurable object with all applicable Powheg options.

    @author James Robinson  <james.robinson@cern.ch>
    """

    def __init__(self, base_directory, **kwargs):
        """! Constructor: all process options are set here.

        @param base_directory: path to PowhegBox code.
        @param kwargs          dictionary of arguments from Generate_tf.
        """
        super(VBF_Z, self).__init__(base_directory, "VBF_W-Z", **kwargs)

        # Add algorithms to the sequence
        self.add_algorithm(ExternalVBFNLO("Z", ["z > e+ e-", "z > mu+ mu-"]))

        # Add all keywords for this process, overriding defaults if required
        self.add_keyword("bornktmin")
        self.add_keyword("bornonly")
        self.add_keyword("bornsuppfact")
        self.add_keyword("bornzerodamp")
        self.add_keyword("bottomthr")
        self.add_keyword("bottomthrpdf")
        self.add_keyword("btlscalect")
        self.add_keyword("btlscalereal")
        self.add_keyword("charmthr")
        self.add_keyword("charmthrpdf")
        self.add_keyword("clobberlhe")
        self.add_keyword("colltest")
        self.add_keyword("facscfact", self.default_scales[0])
        self.add_keyword("fakevirt")
        self.add_keyword("flg_debug")
        self.add_keyword("foldcsi")
        self.add_keyword("foldphi")
        self.add_keyword("foldy")
        self.add_keyword("hdamp")
        self.add_keyword("hfact")
        self.add_keyword("icsimax")
        self.add_keyword("ih1")
        self.add_keyword("ih2")
        self.add_keyword("itmx1", 3)
        self.add_keyword("itmx2", 15)
        self.add_keyword("iupperfsr")
        self.add_keyword("iupperisr")
        self.add_keyword("iymax")
        self.add_keyword("lhans1", self.default_PDFs)
        self.add_keyword("lhans2", self.default_PDFs)
        self.add_keyword("manyseeds")
        self.add_keyword("mll_gencut", 20)
        self.add_keyword("ncall1", 1000000)
        self.add_keyword("ncall2", 3000000)
        self.add_keyword("nubound", 1500000)
        self.add_keyword("par_2gsupp")
        self.add_keyword("par_diexp")
        self.add_keyword("par_dijexp")
        self.add_keyword("pdfreweight")
        self.add_keyword("Phasespace")
        self.add_keyword("ptj_gencut")
        self.add_keyword("ptsqmin")
        self.add_keyword("ptsupp")
        self.add_keyword("ptsuppfact", 10)
        self.add_keyword("radregion")
        self.add_keyword("rand1")
        self.add_keyword("rand2")
        self.add_keyword("renscfact", self.default_scales[1])
        self.add_keyword("rwl_add")
        self.add_keyword("rwl_file")
        self.add_keyword("rwl_format_rwgt")
        self.add_keyword("rwl_group_events")
        self.add_keyword("smartsig")
        self.add_keyword("softtest")
        self.add_keyword("storeinfo_rwgt")
        self.add_keyword("testplots")
        self.add_keyword("testsuda")
        self.add_keyword("ubsigmadetails")
        self.add_keyword("use-old-grid")
        self.add_keyword("use-old-ubound")
        self.add_keyword("withdamp", 1)
        self.add_keyword("withnegweights")
        self.add_keyword("withsubtr")
        self.add_keyword("xupbound", 2)