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tt.py
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1# Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
2
3from ... import Logging
4from ...parameters import powheg_atlas_common
5from ..powheg_V2 import PowhegV2
6from ..external import ExternalMadSpin
7
8
9logger = Logging.logging.getLogger("PowhegControl")
10
11
12class tt(PowhegV2):
13 """! Default Powheg configuration for top-pair production.
14
15 Create a configurable object with all applicable Powheg options.
16
17 @author James Robinson <james.robinson@cern.ch>
18 """
19
20 def __init__(self, base_directory, **kwargs):
21 """! Constructor: all process options are set here.
22
23 @param base_directory: path to PowhegBox code.
24 @param kwargs dictionary of arguments from Generate_tf.
25 """
26 super(tt, self).__init__(base_directory, "hvq", **kwargs)
27
28 # Add algorithms to the sequence
29 self.add_algorithm(ExternalMadSpin(process="generate p p > t t~ [QCD]"))
30
31 # Add parameter validation functions
32 self.validation_functions.append("validate_decays")
33
34
35 self.allowed_decay_modes = ["t t~ > all", "t t~ > b j j b~ j j", "t t~ > b l+ vl b~ l- vl~", "t t~ > b emu+ vemu b~ emu- vemu~", "t t~ > semileptonic", "t t~ > undecayed"]
36
37 # Add all keywords for this process, overriding defaults if required
38 self.add_keyword("bmass_lhe")
39 self.add_keyword("bornktmin", 5.0)
40 self.add_keyword("bornonly")
41 self.add_keyword("bornsuppfact")
42 self.add_keyword("bornzerodamp")
43 self.add_keyword("bottomthr")
44 self.add_keyword("bottomthrpdf")
45 self.add_keyword("btildeborn")
46 self.add_keyword("btildecoll")
47 self.add_keyword("btildereal")
48 self.add_keyword("btildevirt")
49 self.add_keyword("btlscalect")
50 self.add_keyword("btlscalereal")
51 self.add_keyword("charmthr")
52 self.add_keyword("charmthrpdf")
53 self.add_keyword("check_bad_st1")
54 self.add_keyword("check_bad_st2")
55 self.add_keyword("clobberlhe")
56 self.add_keyword("cmass_lhe")
57 self.add_keyword("colltest")
58 self.add_keyword("compress_lhe")
59 self.add_keyword("compress_upb")
60 self.add_keyword("compute_rwgt")
61 self.add_keyword("doublefsr")
62 self.add_keyword("evenmaxrat")
63 self.add_keyword("facscfact", self.default_scales[0])
64 self.add_keyword("fastbtlbound")
65 self.add_keyword("fixedgrid")
66 self.add_keyword("fixedscale")
67 self.add_keyword("flg_debug")
68 self.add_keyword("foldcsi")
69 self.add_keyword("foldphi")
70 self.add_keyword("foldy")
71 self.add_keyword("fullrwgt")
72 self.add_keyword("fullrwgtmode")
73 self.add_keyword("hdamp")
74 self.add_keyword("hfact")
75 self.add_keyword("icsimax")
76 self.add_keyword("ih1")
77 self.add_keyword("ih2")
78 self.add_keyword("itmx1")
79 self.add_keyword("itmx1rm")
80 self.add_keyword("itmx2", 8)
81 self.add_keyword("itmx2rm")
82 self.add_keyword("iupperfsr")
83 self.add_keyword("iupperisr")
84 self.add_keyword("iymax")
85 self.add_keyword("lhans1", self.default_PDFs)
86 self.add_keyword("lhans2", self.default_PDFs)
87 self.add_keyword("lhapdf6maxsets")
88 self.add_keyword("lhrwgt_descr")
89 self.add_keyword("lhrwgt_group_combine")
90 self.add_keyword("lhrwgt_group_name")
91 self.add_keyword("lhrwgt_id")
92 self.add_keyword("LOevents")
93 self.add_keyword("manyseeds")
94 self.add_keyword("max_io_bufsize")
95 self.add_keyword("maxseeds")
96 self.add_keyword("minlo")
97 self.add_keyword("mintupbratlim")
98 self.add_keyword("mintupbxless")
99 self.add_keyword("ncall1", 10000)
100 self.add_keyword("ncall1rm")
101 self.add_keyword("ncall2", 50000)
102 self.add_keyword("ncall2rm")
103 self.add_keyword("ncallfrominput")
104 self.add_keyword("noevents")
105 self.add_keyword("novirtual")
106 self.add_keyword("nubound", 800000)
107 self.add_keyword("olddij")
108 self.add_keyword("par_2gsupp")
109 self.add_keyword("par_diexp")
110 self.add_keyword("par_dijexp")
111 self.add_keyword("parallelstage")
112 self.add_keyword("pdfreweight")
113 self.add_keyword("ptsqmin")
114 self.add_keyword("ptsupp")
115 self.add_keyword("qmass", powheg_atlas_common.mass.t, name="mass_t", description="top quark mass in GeV")
116 self.add_keyword("radregion")
117 self.add_keyword("rand1")
118 self.add_keyword("rand2")
119 self.add_keyword("renscfact", self.default_scales[1])
120 self.add_keyword("rwl_add")
121 self.add_keyword("rwl_file")
122 self.add_keyword("rwl_format_rwgt")
123 self.add_keyword("rwl_group_events")
124 self.add_keyword("semileptonic", hidden=True)
125 self.add_keyword("skipextratests")
126 self.add_keyword("smartsig")
127 self.add_keyword("softtest")
128 self.add_keyword("stage2init")
129 self.add_keyword("storeinfo_rwgt")
130 self.add_keyword("storemintupb")
131 self.add_keyword("tdec/bmass")
132 self.add_keyword("tdec/cmass")
133 self.add_keyword("tdec/dmass")
134 self.add_keyword("tdec/elbranching")
135 self.add_keyword("tdec/emass")
136 self.add_keyword("tdec/mumass")
137 self.add_keyword("tdec/sin2cabibbo")
138 self.add_keyword("tdec/smass")
139 self.add_keyword("tdec/taumass")
140 self.add_keyword("tdec/twidth")
141 self.add_keyword("tdec/umass")
142 self.add_keyword("tdec/wmass")
143 self.add_keyword("tdec/wwidth")
144 self.add_keyword("testplots")
145 self.add_keyword("testsuda")
146 self.add_keyword("topdecaymode", self.allowed_decay_modes[0], name="decay_mode")
147 self.add_keyword("ubexcess_correct")
148 self.add_keyword("ubsigmadetails")
149 self.add_keyword("use-old-grid")
150 self.add_keyword("use-old-ubound")
151 self.add_keyword("withdamp")
152 self.add_keyword("withnegweights")
153 self.add_keyword("withsubtr")
154 self.add_keyword("xgriditeration")
155 self.add_keyword("xupbound", 10)
156
157 def validate_decays(self):
158 """! Validate semileptonic and topdecaymode keywords."""
159 self.expose() # convenience call to simplify syntax
160 if self.decay_mode not in self.allowed_decay_modes:
161 logger.warning("Decay mode {} not recognised!".format(self.decay_mode))
162 raise ValueError("Decay mode {} not recognised!".format(self.decay_mode))
163 # Let MadSpin know whether tops have been decayed
164 if "undecayed" in self.decay_mode:
165 list(self.externals["MadSpin"].parameters_by_keyword("powheg_top_decays_enabled"))[0].value = False
166 # Calculate appropriate decay mode numbers
167 __decay_mode_lookup = {"t t~ > all": "22222", "t t~ > b j j b~ j j": "00022", "t t~ > b l+ vl b~ l- vl~": "22200", "t t~ > b emu+ vemu b~ emu- vemu~": "22000", "t t~ > semileptonic": "11111", "t t~ > undecayed": "00000"}
168 list(self.parameters_by_keyword("topdecaymode"))[0].value = __decay_mode_lookup[self.decay_mode]
169 if self.decay_mode == "t t~ > semileptonic":
170 list(self.parameters_by_keyword("semileptonic"))[0].value = 1
python.processes.configurable.Configurable.add_keyword
add_keyword(self, keyword, value=None, name=None, frozen=None, hidden=None, description=None, **kwargs)
Register configurable parameter that is exposed to the user.
Definition configurable.py:21
python.processes.configurable.Configurable.expose
expose(self)
Add all names to the interface of this object.
Definition configurable.py:46
python.processes.configurable.Configurable.parameters_by_keyword
parameters_by_keyword(self, keyword)
Retrieve all parameters that use a given keyword.
Definition configurable.py:57
python.processes.external.external_madspin.ExternalMadSpin
Class for running external MadSpin process.
Definition external_madspin.py:11
python.processes.powheg.tt.tt
Default Powheg configuration for top-pair production.
Definition tt.py:12
python.processes.powheg.tt.tt.allowed_decay_modes
list allowed_decay_modes
List of allowed decay modes.
Definition tt.py:35
python.processes.powheg.tt.tt.__init__
__init__(self, base_directory, **kwargs)
Constructor: all process options are set here.
Definition tt.py:20
python.processes.powheg.tt.tt.validate_decays
validate_decays(self)
Validate semileptonic and topdecaymode keywords.
Definition tt.py:157
python.processes.powheg_V2.PowhegV2
Base class for PowhegBox V2 processes.
Definition powheg_V2.py:6
python.processes.powheg_base.PowhegBase.externals
dict externals
List of external processes to schedule.
Definition powheg_base.py:124
python.processes.powheg_base.PowhegBase.validation_functions
list validation_functions
List of validation functions to run before preparing runcard.
Definition powheg_base.py:127
python.processes.powheg_base.PowhegBase.add_algorithm
add_algorithm(self, alg_or_process)
Add an algorithm or external process to the sequence.
Definition powheg_base.py:156
python.processes.powheg_base.PowhegBase.default_scales
default_scales(self)
Default scale variations for this process.
Definition powheg_base.py:194
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