################################################A##############################
# (c) Copyright 2021-2024 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. #
###############################################################################
"""
Definitions of "common particles" very similar to those of Runs 1 & 2.
"""
from GaudiKernel.SystemOfUnits import MeV # type: ignore[import]
import Functors as F # type: ignore[import]
from Functors.math import in_range # type: ignore[import]
from PyConf.tonic import configurable # type: ignore[import]
from Hlt2Conf.standard_particles import ( # type: ignore[import]
make_long_kaons,
make_long_muons,
standard_protoparticle_filter,
)
from Hlt2Conf.algorithms_thor import ParticleFilter, ParticleCombiner # type: ignore[import]
from RecoConf.reconstruction_objects import make_pvs # type: ignore[import]
from DaVinci.filter_selectors import default_particle_cuts
####################################
# Particle makers with loose cut
####################################
@configurable
[docs]
def _make_std_loose_particles(particles, pvs, name):
return ParticleFilter(
Input=particles, name=name, Cut=F.FILTER(default_particle_cuts(pvs))
)
@configurable
[docs]
def make_std_loose_kaons():
with standard_protoparticle_filter.bind(Code=F.PPHASRICH):
return _make_std_loose_particles(
make_long_kaons(), make_pvs(), name="StdLooseKaons"
)
@configurable
[docs]
def make_std_loose_muons():
return _make_std_loose_particles(
make_long_muons(), make_pvs(), name="StdLooseMuons"
)
@configurable
[docs]
def make_std_loose_jpsi2mumu():
M_Jpsi = 3096.9 * MeV
muons = make_std_loose_muons()
descriptor = "J/psi(1S) -> mu+ mu-"
combination_code = (
in_range(M_Jpsi - 100.0 * MeV, F.MASS, M_Jpsi + 100.0 * MeV)
) & F.MAXDOCACHI2CUT(30.0)
vertex_code = F.CHI2 < 5.0
return ParticleCombiner(
name="StdLooseJpsi2MuMu",
Inputs=[muons, muons],
DecayDescriptor=descriptor,
CombinationCut=combination_code,
CompositeCut=vertex_code,
)
@configurable
[docs]
def make_std_loose_d2kk():
D0_M = 1864.84 * MeV # +/- 0.05
kaons = make_std_loose_kaons()
descriptor = "D0 -> K+ K-"
combination_code = (
in_range(D0_M - 100.0 * MeV, F.MASS, D0_M + 100.0 * MeV)
) & F.MAXDOCACHI2CUT(30.0)
vertex_code = F.CHI2 < 25.0
return ParticleCombiner(
name="StdLooseD02KK",
Inputs=[kaons, kaons],
DecayDescriptor=descriptor,
CombinationCut=combination_code,
CompositeCut=vertex_code,
)