You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
378 lines
13 KiB
378 lines
13 KiB
###############################################################################
|
|
# (c) Copyright 2020 CERN for the benefit of the LHCb Collaboration #
|
|
# #
|
|
# This software is distributed under the terms of the GNU General Public #
|
|
# Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING". #
|
|
# #
|
|
# In applying this licence, CERN does not waive the privileges and immunities #
|
|
# granted to it by virtue of its status as an Intergovernmental Organization #
|
|
# or submit itself to any jurisdiction. #
|
|
###############################################################################
|
|
"""
|
|
Lines to select the decay D*+ -> D0 pi+ with D0 -> KS0 KS0 and KS0 -> pi+ pi-.
|
|
The KS0 can be reconstructed either from long, downstream or upstream track, resulting
|
|
in the combinations LLLL, LLLD, LLDD, LDDD, DDDD, ULLL, ULDD.
|
|
|
|
"""
|
|
|
|
import Functors as F
|
|
from Functors.math import in_range
|
|
from GaudiKernel.SystemOfUnits import MeV, mm, GeV
|
|
from Moore.config import register_line_builder
|
|
from Moore.lines import Hlt2Line
|
|
from RecoConf.reconstruction_objects import make_pvs
|
|
from Hlt2Conf.standard_particles import make_down_pions, make_long_pions, make_up_pions
|
|
from Hlt2Conf.algorithms import ParticleContainersMerger
|
|
from Hlt2Conf.algorithms_thor import (ParticleCombiner, ParticleFilter)
|
|
from Hlt2Conf.lines.charm.particle_properties import _KS_M
|
|
from Hlt2Conf.lines.charm.prefilters import charm_prefilters
|
|
|
|
|
|
#####################################################################
|
|
### Shortcuts for filters and builders used throughout the module ###
|
|
#####################################################################
|
|
|
|
|
|
def make_tagging_pions():
|
|
return ParticleFilter(
|
|
make_long_pions(),
|
|
F.FILTER(F.require_all(F.PT > 200 * MeV, F.P > 1 * GeV)),
|
|
)
|
|
|
|
|
|
def _make_long_pions_from_ks():
|
|
return ParticleFilter(
|
|
make_long_pions(),
|
|
F.FILTER(F.MINIPCHI2CUT(IPChi2Cut=36., Vertices=make_pvs())))
|
|
|
|
|
|
def _make_down_pions_from_ks():
|
|
return ParticleFilter(
|
|
make_down_pions(),
|
|
F.FILTER(F.require_all(F.PT > 175 * MeV, F.P > 3000 * MeV)))
|
|
|
|
|
|
def _make_down_pions_from_ks_LD():
|
|
return ParticleFilter(
|
|
make_down_pions(),
|
|
F.FILTER(F.require_all(F.PT > 100 * MeV, F.P > 2000 * MeV)))
|
|
|
|
|
|
def _make_up_pions_from_ks():
|
|
return ParticleFilter(
|
|
make_up_pions(),
|
|
F.FILTER(F.MINIPCHI2CUT(IPChi2Cut=10., Vertices=make_pvs())))
|
|
|
|
|
|
def _make_ll_ks(descriptor="KS0 -> pi+ pi-"):
|
|
"""Returns maker for KS0 -> pi+ pi- constructed with two long pions."""
|
|
return ParticleCombiner(
|
|
[_make_long_pions_from_ks(),
|
|
_make_long_pions_from_ks()],
|
|
DecayDescriptor=descriptor,
|
|
name='Charm_D0ToKsKs_Ks_LL_{hash}',
|
|
CombinationCut=F.require_all(
|
|
in_range(_KS_M - 50 * MeV, F.MASS, _KS_M + 50 * MeV),
|
|
F.PT > 450 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(_KS_M - 30 * MeV, F.MASS, _KS_M + 30 * MeV),
|
|
F.CHI2DOF < 7,
|
|
in_range(-100 * mm, F.END_VZ, 500 * mm),
|
|
F.PT > 500 * MeV,
|
|
),
|
|
)
|
|
|
|
|
|
def _make_ll_ks_ULLL(descriptor="KS0 -> pi+ pi-"):
|
|
"""Returns maker for KS0 -> pi+ pi- constructed with two long pions only for ULLL."""
|
|
return ParticleCombiner(
|
|
[_make_long_pions_from_ks(),
|
|
_make_long_pions_from_ks()],
|
|
DecayDescriptor=descriptor,
|
|
name='Charm_D0ToKsKs_Ks_LL_ULLL_{hash}',
|
|
CombinationCut=F.require_all(
|
|
in_range(_KS_M - 50 * MeV, F.MASS, _KS_M + 50 * MeV),
|
|
F.PT > 250 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(_KS_M - 30 * MeV, F.MASS, _KS_M + 30 * MeV),
|
|
F.CHI2DOF < 7,
|
|
in_range(-100 * mm, F.END_VZ, 500 * mm),
|
|
F.PT > 300 * MeV,
|
|
),
|
|
)
|
|
|
|
|
|
def _make_ld_ks(descriptor="KS0 -> pi+ pi-"):
|
|
"""Returns maker for KS0 -> pi+ pi- constructed with a long and downstream pion."""
|
|
return ParticleCombiner(
|
|
[_make_long_pions_from_ks(),
|
|
_make_down_pions_from_ks_LD()],
|
|
DecayDescriptor=descriptor,
|
|
name='Charm_D0ToKsKs_Ks_LD_{hash}',
|
|
CombinationCut=F.require_all(
|
|
in_range(_KS_M - 85 * MeV, F.MASS, _KS_M + 85 * MeV),
|
|
F.PT > 450 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(_KS_M - 65 * MeV, F.MASS, _KS_M + 65 * MeV),
|
|
F.CHI2DOF < 10,
|
|
in_range(50 * mm, F.END_VZ, 500 * mm),
|
|
F.PT > 500 * MeV,
|
|
),
|
|
)
|
|
|
|
|
|
def _make_dd_ks(descriptor="KS0 -> pi+ pi-"):
|
|
"""Returns maker for KS0 -> pi+ pi- constructed with two downstream pions."""
|
|
return ParticleCombiner(
|
|
[_make_down_pions_from_ks(),
|
|
_make_down_pions_from_ks()],
|
|
DecayDescriptor=descriptor,
|
|
name='Charm_D0ToKsKs_Ks_DD_{hash}',
|
|
CombinationCut=F.require_all(
|
|
in_range(_KS_M - 80 * MeV, F.MASS, _KS_M + 80 * MeV),
|
|
F.PT > 450 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(_KS_M - 60 * MeV, F.MASS, _KS_M + 60 * MeV),
|
|
F.CHI2DOF < 10,
|
|
in_range(300 * mm, F.END_VZ, 2275 * mm),
|
|
F.PT > 500 * MeV,
|
|
),
|
|
)
|
|
|
|
|
|
def _make_ul_ks(descriptor="KS0 -> pi+ pi-"):
|
|
"""Returns maker for KS0 -> pi+ pi- constructed with one long and one upstream pion."""
|
|
return ParticleCombiner(
|
|
[_make_up_pions_from_ks(),
|
|
_make_long_pions_from_ks()],
|
|
DecayDescriptor=descriptor,
|
|
name='Charm_D0ToKsKs_Ks_UL_{hash}',
|
|
CombinationCut=F.require_all(
|
|
in_range(_KS_M - 90 * MeV, F.MASS, _KS_M + 90 * MeV),
|
|
F.PT < 5050 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(_KS_M - 70 * MeV, F.MASS, _KS_M + 70 * MeV),
|
|
F.CHI2DOF < 10,
|
|
in_range(-100 * mm, F.END_VZ, 500 * mm),
|
|
F.PT > 400 * MeV,
|
|
),
|
|
)
|
|
|
|
|
|
def _make_dstars(dzeros, pions, descriptor):
|
|
"""Returns maker for D*+- -> D0 pi+-."""
|
|
return ParticleCombiner(
|
|
[dzeros, pions],
|
|
DecayDescriptor=descriptor,
|
|
name='Charm_D0ToKsKs_Dstars_{hash}',
|
|
CombinationCut=F.MASS - F.CHILD(1, F.MASS) < 160 * MeV,
|
|
CompositeCut=F.require_all(
|
|
F.MASS - F.CHILD(1, F.MASS) < 150 * MeV,
|
|
F.CHI2DOF < 25, # fix due to control channel
|
|
),
|
|
)
|
|
|
|
|
|
#########################
|
|
### Lines definition ###
|
|
#########################
|
|
|
|
all_lines = {}
|
|
|
|
|
|
@register_line_builder(all_lines)
|
|
def dst_to_d0pi_d0toksks_llll(
|
|
name="Hlt2Charm_DstpToD0Pip_D0ToKsKs_LLLL"):
|
|
pvs = make_pvs()
|
|
kshorts = _make_ll_ks()
|
|
dzeros = ParticleCombiner(
|
|
[kshorts, kshorts],
|
|
DecayDescriptor="D0 -> KS0 KS0",
|
|
name="Charm_D0ToKsKs_D0ToKsKs_LLLL",
|
|
CombinationCut=F.require_all(
|
|
in_range(1730 * MeV, F.MASS, 2000 * MeV),
|
|
F.SUM(F.PT) > 1500 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(1775 * MeV, F.MASS, 1955 * MeV),
|
|
F.BPVFDCHI2(pvs) > 5,
|
|
F.CHI2DOF < 10, # fix
|
|
F.BPVDIRA(pvs) > 0.9994,
|
|
),
|
|
)
|
|
|
|
pitag = make_tagging_pions()
|
|
|
|
dstarp = _make_dstars(dzeros, pitag, "D*(2010)+ -> D0 pi+")
|
|
dstarm = _make_dstars(dzeros, pitag, "D*(2010)- -> D0 pi-")
|
|
dstars = ParticleContainersMerger([dstarp, dstarm])
|
|
|
|
|
|
return Hlt2Line(
|
|
name=name, algs=charm_prefilters() + [kshorts, dzeros, dstars])
|
|
|
|
|
|
@register_line_builder(all_lines)
|
|
def dst_to_d0pi_d0toksks_llld_line(
|
|
name="Hlt2Charm_DstpToD0Pip_D0ToKsKs_LLLD"):
|
|
pvs = make_pvs()
|
|
ll_kshorts = _make_ll_ks()
|
|
ld_kshorts = _make_ld_ks()
|
|
dzeros = ParticleCombiner(
|
|
[ll_kshorts, ld_kshorts],
|
|
DecayDescriptor="D0 -> KS0 KS0",
|
|
name="Charm_D0ToKsKs_D0ToKsKs_LLLD",
|
|
AllowDiffInputsForSameIDChildren=True,
|
|
CombinationCut=F.require_all(
|
|
in_range(1730 * MeV, F.MASS, 2000 * MeV),
|
|
F.SUM(F.PT) > 1500 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(1775 * MeV, F.MASS, 1955 * MeV),
|
|
F.CHI2DOF < 10,
|
|
F.BPVDIRA(pvs) > 0.9994,
|
|
),
|
|
)
|
|
|
|
pitag = make_tagging_pions()
|
|
|
|
dstarp = _make_dstars(dzeros, pitag, "D*(2010)+ -> D0 pi+")
|
|
dstarm = _make_dstars(dzeros, pitag, "D*(2010)- -> D0 pi-")
|
|
dstars = ParticleContainersMerger([dstarp, dstarm])
|
|
|
|
return Hlt2Line(name=name, algs=charm_prefilters() + [ld_kshorts, dzeros, dstars])
|
|
|
|
|
|
@register_line_builder(all_lines)
|
|
def dst_to_d0pi_d0toksks_lldd(
|
|
name="Hlt2Charm_DstpToD0Pip_D0ToKsKs_LLDD"):
|
|
pvs = make_pvs()
|
|
dd_kshorts = _make_dd_ks()
|
|
ll_kshorts = _make_ll_ks()
|
|
dzeros = ParticleCombiner(
|
|
[dd_kshorts, ll_kshorts],
|
|
DecayDescriptor="D0 -> KS0 KS0",
|
|
AllowDiffInputsForSameIDChildren=True,
|
|
name="Charm_D0ToKsKs_D0ToKsKs_LLDD",
|
|
CombinationCut=F.require_all(
|
|
in_range(1730 * MeV, F.MASS, 2000 * MeV),
|
|
F.SUM(F.PT) > 1500 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(1775 * MeV, F.MASS, 1955 * MeV),
|
|
F.CHI2DOF < 10,
|
|
F.BPVDIRA(pvs) > 0.9994,
|
|
),
|
|
)
|
|
|
|
pitag = make_tagging_pions()
|
|
|
|
dstarp = _make_dstars(dzeros, pitag, "D*(2010)+ -> D0 pi+")
|
|
dstarm = _make_dstars(dzeros, pitag, "D*(2010)- -> D0 pi-")
|
|
dstars = ParticleContainersMerger([dstarp, dstarm])
|
|
|
|
|
|
return Hlt2Line(
|
|
name=name, algs=charm_prefilters() + [dd_kshorts, dzeros, dstars])
|
|
|
|
|
|
@register_line_builder(all_lines)
|
|
def dst_to_d0pi_d0toksks_dddd(
|
|
name="Hlt2Charm_DstpToD0Pip_D0ToKsKs_DDDD"):
|
|
pvs = make_pvs()
|
|
dd_kshorts = _make_dd_ks()
|
|
dzeros = ParticleCombiner(
|
|
[dd_kshorts, dd_kshorts],
|
|
DecayDescriptor="D0 -> KS0 KS0",
|
|
name="Charm_D0ToKsKs_D0ToKsKs_DDDD",
|
|
CombinationCut=F.require_all(
|
|
in_range(1730 * MeV, F.MASS, 2000 * MeV),
|
|
F.SUM(F.PT) > 1500 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(1775 * MeV, F.MASS, 1955 * MeV),
|
|
F.CHI2DOF < 10,
|
|
F.BPVDIRA(pvs) > 0.9994,
|
|
),
|
|
)
|
|
|
|
pitag = make_tagging_pions()
|
|
|
|
dstarp = _make_dstars(dzeros, pitag, "D*(2010)+ -> D0 pi+")
|
|
dstarm = _make_dstars(dzeros, pitag, "D*(2010)- -> D0 pi-")
|
|
dstars = ParticleContainersMerger([dstarp, dstarm])
|
|
|
|
|
|
return Hlt2Line(
|
|
name=name, algs=charm_prefilters() + [dd_kshorts, dzeros, dstars])
|
|
|
|
|
|
@register_line_builder(all_lines)
|
|
def dst_to_d0pi_d0toksks_ulll(
|
|
name="Hlt2Charm_DstpToD0Pip_D0ToKsKs_ULLL"):
|
|
pvs = make_pvs()
|
|
ll_kshorts = _make_ll_ks_ULLL()
|
|
ul_kshorts = _make_ul_ks()
|
|
dzeros = ParticleCombiner(
|
|
[ll_kshorts, ul_kshorts],
|
|
DecayDescriptor="D0 -> KS0 KS0",
|
|
name="Charm_D0ToKsKs_D0ToKsKs_ULLL",
|
|
AllowDiffInputsForSameIDChildren=True,
|
|
CombinationCut=F.require_all(
|
|
in_range(1730 * MeV, F.MASS, 2000 * MeV),
|
|
F.SUM(F.PT) > 1500 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(1775 * MeV, F.MASS, 1955 * MeV),
|
|
F.CHI2DOF < 10,
|
|
F.BPVDIRA(pvs) > 0.9994,
|
|
),
|
|
)
|
|
|
|
pitag = make_tagging_pions()
|
|
|
|
dstarp = _make_dstars(dzeros, make_tagging_pions(), "D*(2010)+ -> D0 pi+")
|
|
dstarm = _make_dstars(dzeros, make_tagging_pions(), "D*(2010)- -> D0 pi-")
|
|
dstars = ParticleContainersMerger([dstarp, dstarm])
|
|
|
|
|
|
return Hlt2Line(
|
|
name=name, algs=charm_prefilters() + [ul_kshorts, dzeros, dstars])
|
|
|
|
|
|
@register_line_builder(all_lines)
|
|
def dst_to_d0pi_d0toksks_uldd(
|
|
name="Hlt2Charm_DstpToD0Pip_D0ToKsKs_ULDD"):
|
|
pvs = make_pvs()
|
|
dd_kshorts = _make_dd_ks()
|
|
ul_kshorts = _make_ul_ks()
|
|
dzeros = ParticleCombiner(
|
|
[dd_kshorts, ul_kshorts],
|
|
DecayDescriptor="D0 -> KS0 KS0",
|
|
name="Charm_D0ToKsKs_D0ToKsKs_ULDD",
|
|
AllowDiffInputsForSameIDChildren=True,
|
|
CombinationCut=F.require_all(
|
|
in_range(1730 * MeV, F.MASS, 2000 * MeV),
|
|
F.SUM(F.PT) > 1500 * MeV,
|
|
),
|
|
CompositeCut=F.require_all(
|
|
in_range(1775 * MeV, F.MASS, 1955 * MeV),
|
|
F.CHI2DOF < 10,
|
|
F.BPVDIRA(pvs) > 0.9994,
|
|
),
|
|
)
|
|
|
|
pitag = make_tagging_pions()
|
|
|
|
dstarp = _make_dstars(dzeros, pitag, "D*(2010)+ -> D0 pi+")
|
|
dstarm = _make_dstars(dzeros, pitag, "D*(2010)- -> D0 pi-")
|
|
dstars = ParticleContainersMerger([dstarp, dstarm])
|
|
|
|
|
|
return Hlt2Line(
|
|
name=name, algs=charm_prefilters() + [ul_kshorts, dzeros, dstars])
|