#!/usr/bin/env python3
##########################################################################
# basf2 (Belle II Analysis Software Framework) #
# Author: The Belle II Collaboration #
# #
# See git log for contributors and copyright holders. #
# This file is licensed under LGPL-3.0, see LICENSE.md. #
##########################################################################
"""(Semi-)Leptonic Working Group Skims for leptonic analyses.
"""
import modularAnalysis as ma
from skim import BaseSkim, fancy_skim_header
from stdCharged import stdE, stdMu
from variables import variables as vm
__liaison__ = "Cameron Harris <cameron.harris@adelaide.edu.au>, Tommy Martinov <tommy.martinov@desy.de>"
_VALIDATION_SAMPLE = "mdst16.root"
[docs]
@fancy_skim_header
class LeptonicUntagged(BaseSkim):
"""
Reconstructed decays
* :math:`B^- \\to e^-`
* :math:`B^- \\to \\mu^-`
Cuts applied
* :math:`p_{\\ell}^{*} > 1.8\\,\\text{GeV}` in CMS Frame
* :math:`\\text{electronID} > 0.5`
* :math:`\\text{muonID} > 0.5`
* :math:`n_{\\text{tracks}} \\geq 3`
"""
__authors__ = ["Daniel Jacobi"]
__contact__ = __liaison__
__description__ = (
"Skim for leptonic analyses, "
":math:`B_{\\text{sig}}^-\\to\\ell\\nu`, where :math:`\\ell=e,\\mu`"
)
__category__ = "physics, leptonic"
validation_sample = _VALIDATION_SAMPLE
ApplyHLTHadronCut = False
[docs]
def load_standard_lists(self, path):
stdE("all", path=path)
stdMu("all", path=path)
[docs]
def build_lists(self, path):
ma.cutAndCopyList(
"e-:LeptonicUntagged",
"e-:all",
"useCMSFrame(p) > 1.8 and electronID > 0.5",
True,
path=path,
)
ma.cutAndCopyList(
"mu-:LeptonicUntagged",
"mu-:all",
"useCMSFrame(p) > 1.8 and muonID > 0.5",
True,
path=path,
)
ma.reconstructDecay("B-:LeptonicUntagged_0 -> e-:LeptonicUntagged", "", 1, path=path)
ma.reconstructDecay("B-:LeptonicUntagged_1 -> mu-:LeptonicUntagged", "", 2, path=path)
ma.applyCuts("B-:LeptonicUntagged_0", "nTracks>=3", path=path)
ma.applyCuts("B-:LeptonicUntagged_1", "nTracks>=3", path=path)
return ["B-:LeptonicUntagged_0", "B-:LeptonicUntagged_1"]
[docs]
def validation_histograms(self, path):
# NOTE: the validation package is not part of the light releases, so this import
# must be made here rather than at the top of the file.
from validation_tools.metadata import create_validation_histograms
ma.cutAndCopyLists("B-:LeptonicUntagged", ["B-:LeptonicUntagged_0", "B-:LeptonicUntagged_1"], "", path=path)
ma.buildRestOfEvent("B-:LeptonicUntagged", path=path)
ma.appendROEMask(
"B-:LeptonicUntagged",
"basic",
"pt>0.05 and -2<dr<2 and -4.0<dz<4.0",
"E>0.05",
path=path,
)
vm.addAlias("d0_p", "daughter(0,p)")
vm.addAlias("d0_electronID", "daughter(0,electronID)")
vm.addAlias("d0_muonID", "daughter(0,muonID)")
vm.addAlias("MissP", "weMissP(basic,0)")
histogramFilename = f"{self}_Validation.root"
contact = __liaison__
create_validation_histograms(
rootfile=histogramFilename,
particlelist="B-:LeptonicUntagged",
variables_1d=[
("Mbc", 100, 4.0, 5.3, "Mbc", contact, "", ""),
("d0_p", 100, 0, 5.2, "Signal-side lepton momentum", contact, "", ""),
("d0_electronID", 100, 0, 1, "electronID of signal-side lepton",
contact, "", ""),
("d0_muonID", 100, 0, 1, "muonID of signal-side lepton", contact,
"", ""),
("MissP", 100, 0, 5.3, "Missing momentum of event (CMS frame)", contact,
"", ""),
],
variables_2d=[
("deltaE", 100, -5, 5, "Mbc", 100, 4.0, 5.3, "Mbc vs deltaE", contact,
"", "")
],
path=path,
)
