New SimBeamSpotHLLHC tags in Phase-2 MC GT and make Phase-2 workflows consume it

Configuration/AlCa/python/autoCond.py

@@ -100,7 +100,7 @@
     # GlobalTag for MC production with realistic conditions for Phase1 2024 detector for Heavy Ion
     'phase1_2024_realistic_hi'     :    '141X_mcRun3_2024_realistic_HI_v4',
     # GlobalTag for MC production with realistic conditions for Phase2
-    'phase2_realistic'             :    '140X_mcRun4_realistic_v4'
+    'phase2_realistic'             :    '141X_mcRun4_realistic_v1'
 }
 
 aliases = {
@@ -126,6 +126,10 @@
 from Configuration.AlCa.autoCondPhase2 import autoCondPhase2
 autoCond = autoCondPhase2(autoCond)
 
+# special GTs for phase-2 with BeamSpot at 13 TeV (instead of 14 TeV)
+from Configuration.AlCa.autoCondModifiers import autoCondBSHLLHC13TeV
+autoCond = autoCondBSHLLHC13TeV(autoCond)
+
 # special cases modifier for autoCond GTs
 from Configuration.AlCa.autoCondModifiers import autoCond0T
 autoCond = autoCond0T(autoCond)

Configuration/AlCa/python/autoCondModifiers.py

@@ -125,3 +125,20 @@ def autoCondRelValForRun3(autoCond):
     autoCond.update(GlobalTagRelValForRun3)
     return autoCond
 
+def autoCondBSHLLHC13TeV(autoCond):
+
+    GlobalTagBSHLLHC13TeV = {}
+    SimBeamSpotForHLLHC13TeV = ','.join( ['SimBeamSpotHLLHCObjects_z4p3cm_t193ns_13TeV_nominal_mc_v1', "SimBeamSpotHLLHCObjectsRcd", connectionString, "", "2024-07-04 15:00:00.000"] )
+
+    for key,val in autoCond.items():
+        if 'phase2_realistic' in key:
+            # If 'phase2_realistic_T' is in key, it means it was already modified
+            # by autoCondPhase2: simply add to the already existing tuple
+            if 'phase2_realistic_T' in key:
+                GlobalTagBSHLLHC13TeV[key+'_13TeV'] = autoCond[key] + (SimBeamSpotForHLLHC13TeV,)
+            # Else, build the tuple as done in the rest of the autoCondModifiers
+            else:
+                GlobalTagBSHLLHC13TeV[key+'_13TeV'] = (autoCond[key], SimBeamSpotForHLLHC13TeV)
+
+    autoCond.update(GlobalTagBSHLLHC13TeV)
+    return autoCond

Configuration/PyReleaseValidation/python/relval_steps.py

@@ -1148,7 +1148,7 @@ def genS(fragment,howMuch):
                                 '--scenario':'cosmics',
                                 '--era': phase2CosInfo['Era'],
                                 '--geometry': phase2CosInfo['Geom'],
-                                '--beamspot':'HLLHC14TeV'},Kby(666,100000),step1Defaults])
+                                '--beamspot':'DBrealisticHLLHC'},Kby(666,100000),step1Defaults])
 
 steps['BeamHalo']=merge([{'cfg':'BeamHalo_cfi.py','--scenario':'cosmics'},Kby(9,100),step1Defaults])
 steps['BeamHalo_13']=merge([{'cfg':'BeamHalo_13TeV_cfi.py','--scenario':'cosmics'},Kby(9,100),step1Up2015Defaults])
@@ -4311,8 +4311,8 @@ def gen2023HiMix(fragment,howMuch):
 
     upgradeStepDict['GenSimHLBeamSpot'][k]= {'-s' : 'GEN,SIM',
                                        '-n' : 10,
-                                       '--conditions' : gt,
-                                       '--beamspot' : 'HLLHC',
+                                       '--conditions' : gt+'_13TeV',
+                                       '--beamspot' : 'DBrealisticHLLHC',
                                        '--datatier' : 'GEN-SIM',
                                        '--eventcontent': 'FEVTDEBUG',
                                        '--geometry' : geom
@@ -4321,7 +4321,7 @@ def gen2023HiMix(fragment,howMuch):
     upgradeStepDict['GenSimHLBeamSpot14'][k]= {'-s' : 'GEN,SIM',
                                        '-n' : 10,
                                        '--conditions' : gt,
-                                       '--beamspot' : 'HLLHC14TeV',
+                                       '--beamspot' : 'DBrealisticHLLHC',
                                        '--datatier' : 'GEN-SIM',
                                        '--eventcontent': 'FEVTDEBUG',
                                        '--geometry' : geom

Configuration/StandardSequences/python/VtxSmeared.py

@@ -1,6 +1,7 @@
 VtxSmeared = {
     'DBdesign':                      'IOMC.EventVertexGenerators.VtxSmearedDesign_cfi',
     'DBrealistic':                   'IOMC.EventVertexGenerators.VtxSmearedRealistic_cfi',
+    'DBrealisticHLLHC':              'IOMC.EventVertexGenerators.VtxSmearedRealisticHLLHC_cfi',
     'NoSmear':                       'Configuration.StandardSequences.VtxSmearedNoSmear_cff',              
     'BetafuncEarlyCollision':        'IOMC.EventVertexGenerators.VtxSmearedBetafuncEarlyCollision_cfi',    
     'BeamProfile':                   'IOMC.EventVertexGenerators.VtxSmearedBeamProfile_cfi',               

IOMC/EventVertexGenerators/python/VtxSmearedRealisticHLLHC_cfi.py

@@ -0,0 +1,8 @@
+import FWCore.ParameterSet.Config as cms
+
+# Load HLLHCEvtVtxGenerator and read parameters from GT (SimBeamSpotHLLHCObjectsRcd)
+from IOMC.EventVertexGenerators.HLLHCEvtVtxGenerator_cfi import HLLHCEvtVtxGenerator
+VtxSmeared = HLLHCEvtVtxGenerator.clone(
+    src = "generator:unsmeared",
+    readDB = True
+)