RK --- stand in lines

Hlt/Hlt2Conf/python/Hlt2Conf/lines/rd/__init__.py

@@ -26,6 +26,7 @@ from . import b_to_ll_LFV
 from . import b_to_kstarmumu
 from . import hlt2_btosmutau_exclusive
 from . import hlt2_btostautau_exclusive
+from . import bu_to_xll
 
 # provide "all_lines" for correct registration by the overall HLT2 lines module
 all_lines = {}
@@ -43,6 +44,7 @@ all_lines.update(b_to_ll_LFV.hlt2_lines)
 all_lines.update(b_to_kstarmumu.all_lines)
 all_lines.update(hlt2_btosmutau_exclusive.all_lines)
 all_lines.update(hlt2_btostautau_exclusive.all_lines)
+all_lines.update(bu_to_xll.all_lines)
 
 sprucing_lines = {}
 sprucing_lines.update(spruce_beauty2xtaul.sprucing_lines)

Hlt/Hlt2Conf/python/Hlt2Conf/lines/rd/bu_to_xll.py

+###############################################################################
+# (c) Copyright 2022 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.                                       #
+###############################################################################
+from Moore.lines import Hlt2Line
+from Moore.config import register_line_builder
+from .builders.rd_prefilters import rd_prefilter
+from RecoConf.reconstruction_objects import make_pvs_v2 as make_pvs
+from .builders import rdbuilder_thor
+from .builders import bu_to_xll_builders
+
+all_lines = {}
+"""
+Definition of the b -> X ll exclusive lines 
+
+Migration of selections from  StrippingBu2LLK
+
+Includes:
+    B+ -> J/psi(1S) K+  (cc)
+for J/psi = e+ e- or mu+ mu-
+
+Contact: Richard Williams (rmw68@cam.ac.uk)
+"""
+
+
+@register_line_builder(all_lines)
+def BuToKpEE_line(name="Hlt2RD_BuToKpEE_Line", prescale=1):
+
+    pvs = make_pvs()
+    dielectrons = rdbuilder_thor.make_rd_detached_dielectron(
+        opposite_sign=True)
+    kaons = rdbuilder_thor.make_rd_detached_kaons()
+
+    Bu = bu_to_xll_builders.make_rd_BToXll(
+        dielectrons,
+        kaons,
+        pvs,
+        Descriptor="[B+ -> J/psi(1S) K+]cc",
+        name="make_rd_BToXll_for_" + name,
+    )
+
+    return Hlt2Line(
+        name=name,
+        algs=rd_prefilter() + [dielectrons, Bu],
+        prescale=prescale,
+    )
+
+
+@register_line_builder(all_lines)
+def BuToKpMuMu_line(name="Hlt2RD_BuToKpMuMu_Line", prescale=1):
+
+    pvs = make_pvs()
+    dimuons = rdbuilder_thor.make_rd_detached_dimuon(same_sign=False)
+    kaons = rdbuilder_thor.make_rd_detached_kaons()
+
+    Bu = bu_to_xll_builders.make_rd_BToXll(
+        dimuons,
+        kaons,
+        pvs,
+        Descriptor="[B+ -> J/psi(1S) K+]cc",
+        name="make_rd_BToXll_for_" + name,
+    )
+
+    return Hlt2Line(
+        name=name,
+        algs=rd_prefilter() + [dimuons, Bu],
+        prescale=prescale,
+    )

Hlt/Hlt2Conf/python/Hlt2Conf/lines/rd/builders/bu_to_xll_builders.py

+###############################################################################
+# (c) Copyright 2022 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.                                       #
+###############################################################################
+
+from Functors.math import in_range
+from GaudiKernel.SystemOfUnits import MeV
+import Functors as F
+from Hlt2Conf.algorithms_thor import ParticleCombiner
+from Hlt2Conf.algorithms_thor import require_all
+from PyConf import configurable
+
+
+@configurable
+def make_rd_BToXll(
+        dileptons,
+        hadrons,
+        pvs,
+        Descriptor,
+        name="rd_BToXll",
+        am_min=4000 * MeV,
+        am_max=6500 * MeV,
+        B_pt_min=500 * MeV,
+        adocachi2cut=30.,
+        bpvipchi2_max=16,
+        min_cosine=0.9995,
+        FDchi2_min=144,
+        vchi2pdof_max=25.,
+):
+
+    ### Make the Bu or Bs -> hadron l+ l- candidate ###
+
+    combination_code = require_all(
+        in_range(am_min, F.MASS, am_max),
+        F.SUM(F.PT) > B_pt_min,
+        F.MAXDOCACHI2CUT(adocachi2cut),
+    )
+
+    vertex_code = require_all(
+        F.BPVIPCHI2(pvs) < bpvipchi2_max,
+        F.BPVDIRA(pvs) > min_cosine,
+        F.BPVFDCHI2(pvs) > FDchi2_min,
+        F.CHI2DOF < vchi2pdof_max,
+    )
+
+    return ParticleCombiner(
+        [dileptons, hadrons],
+        DecayDescriptor=Descriptor,
+        CombinationCut=combination_code,
+        name=name,
+        CompositeCut=vertex_code,
+    )