JHUGen MELA  v2.4.1
Matrix element calculations as used in JHUGen. MELA is an important tool that was used for the Higgs boson discovery and for precise measurements of its structure and interactions. Please see the website https://spin.pha.jhu.edu/ and papers cited there for more details, and kindly cite those papers when using this code.
Classes | Functions | Variables
mela Namespace Reference

Classes

class  Mela
 

Functions

def SimpleParticleCollection_t (iterable=None)
 
def SimpleParticle_t (lineorid, pxortlv=None, py=None, pz=None, e=None)
 

Variables

 basestring = str
 
 m = Mela()
 
string event1
 
string event2
 
string event3
 
string daughters
 
string associated
 
string mothers
 
tuple couplings
 
 ghz1_prime2
 
 dec = m.computeP(False)
 
 prod = m.computeProdP(False)
 

Function Documentation

◆ SimpleParticle_t()

def mela.SimpleParticle_t (   lineorid,
  pxortlv = None,
  py = None,
  pz = None,
  e = None 
)

Definition at line 690 of file mela.py.

690 def SimpleParticle_t(lineorid, pxortlv=None, py=None, pz=None, e=None):
691  if pxortlv is py is pz is e is None:
692  if isinstance(lineorid, ROOT.SimpleParticle_t): return lineorid
693  if isinstance(lineorid, basestring):
694  lineorid = lineorid.split()
695  if len(lineorid) == 13:
696  id, status, mother1, mother2, color1, color2, px, py, pz, e, m, lifetime, spin = (f(_) for f, _ in zip((int, int, int, int, int, int, float, float, float, float, float, float, float), lineorid))
697  elif len(lineorid) == 5:
698  id, px, py, pz, e = (f(_) for f, _ in zip((int, float, float, float, float), lineorid))
699  elif len(lineorid) == 2:
700  id, pxortlv = lineorid
701  else:
702  raise ValueError("len(lineorid) has to be 5 or 13, not {}".format(len(lineorid)))
703  else:
704  id = lineorid
705  px = pxortlv
706 
707  if py is pz is e is None:
708  tlv = pxortlv
709  else:
710  tlv = ROOT.TLorentzVector(px, py, pz, e)
711 
712  return ROOT.SimpleParticle_t(id, tlv)
713 

◆ SimpleParticleCollection_t()

def mela.SimpleParticleCollection_t (   iterable = None)

Definition at line 683 of file mela.py.

683 def SimpleParticleCollection_t(iterable=None):
684  if iterable is None: return ROOT.SimpleParticleCollection_t()
685  result = ROOT.SimpleParticleCollection_t()
686  for _ in iterable:
687  result.push_back(SimpleParticle_t(_))
688  return result
689 

Variable Documentation

◆ associated

string mela.associated
Initial value:
1 = """
2  -1 211.33318543799998679 -14.90577872979999974 3.74371777679000006 211.89127619999999297
3  2 31.22409920730000010 -37.83127789369999761 1.23465418111000003 49.06805813689999951
4  """

Definition at line 773 of file mela.py.

◆ basestring

mela.basestring = str

Definition at line 47 of file mela.py.

◆ couplings

tuple mela.couplings
Initial value:
1 = (
2  (1, 0, 0, 0),
3  (0, 1, 0, 0),
4  (0, 0, 1, 0),
5  (0, 0, 0, 1),
6  (1, 1.663195, 0, 0),
7  (1, 0, 2.55502, 0),
8  (1, 0, 0, -12110.20),
9  )

Definition at line 791 of file mela.py.

◆ daughters

string mela.daughters
Initial value:
1 = """
2  11 -71.89077865749999319 30.50307494750000004 -47.20025487019999844 91.25012710839999386
3  -11 -25.13451734110000046 -18.85931656560000036 -81.42283896300000379 87.27597887359999618
4  11 -51.80274100940000181 1.64269040236999997 -41.79162596869999646 66.57899375339999892
5  -11 -93.72924763700000028 39.45060783929999815 -92.98363978320000456 137.79506373300000632
6  """

Definition at line 767 of file mela.py.

◆ dec

mela.dec = m.computeP(False)

Definition at line 803 of file mela.py.

◆ event1

string mela.event1
Initial value:
1 = """
2 <event>
3 12 50 1.0000000E+00 1.2500000E+02 7.8125000E-03 1.2380607E-01
4  2 -1 0 0 503 0 0.00000000000E+00 0.00000000000E+00 1.65430825479E+03 1.65430825479E+03 0.00000000000E+00 0.00000000000E+00 1.
5  -1 -1 0 0 0 503 0.00000000000E+00 0.00000000000E+00 -1.42857195999E+01 1.42857195999E+01 0.00000000000E+00 0.00000000000E+00 1.
6  24 2 1 2 0 0 -2.29473352103E+00 -1.04804828491E+02 4.95291431378E+02 5.12296652853E+02 7.83896718395E+01 0.00000000000E+00 1.
7  25 2 1 2 0 0 2.29473352103E+00 1.04804828491E+02 1.14473110382E+03 1.15629732154E+03 1.24999511524E+02 0.00000000000E+00 1.
8  14 1 3 3 0 0 4.42035961901E+00 -5.60456350211E+01 4.09886160671E+02 4.13723721213E+02 8.42936970218E-06 0.00000000000E+00 1.
9  -13 1 3 3 0 0 -6.71509314004E+00 -4.87591934698E+01 8.54052707068E+01 9.85729316407E+01 1.05660000144E-01 0.00000000000E+00 1.
10  23 2 4 4 0 0 -2.00748771644E+01 3.21702667586E+01 3.27018956548E+02 3.30034988785E+02 2.33188576920E+01 0.00000000000E+00 1.
11  23 2 4 4 0 0 2.23696106855E+01 7.26345617324E+01 8.17712147272E+02 8.26262332755E+02 9.09950970840E+01 0.00000000000E+00 1.
12  -11 1 7 7 0 0 -1.74223737299E+01 9.11950220870E+00 1.06644211152E+02 1.08442114510E+02 5.11001208360E-04 0.00000000000E+00 1.
13  11 1 7 7 0 0 -2.65250343458E+00 2.30507645499E+01 2.20374745396E+02 2.21592874275E+02 5.10994690391E-04 0.00000000000E+00 1.
14  -13 1 8 8 0 0 8.81223774828E+00 8.87930337607E+01 5.03683096793E+02 5.11525690007E+02 1.05660000328E-01 0.00000000000E+00 1.
15  13 1 8 8 0 0 1.35573729372E+01 -1.61584720283E+01 3.14029050479E+02 3.14736642748E+02 1.05659999907E-01 0.00000000000E+00 1.
16 </event>
17  """

Definition at line 716 of file mela.py.

◆ event2

string mela.event2
Initial value:
1 = """
2 <event>
3 12 50 1.0000000E+00 1.2500000E+02 7.8125000E-03 1.2380607E-01
4  1 -1 0 0 503 0 0.00000000000E+00 0.00000000000E+00 1.58591490197E+03 1.58591490197E+03 0.00000000000E+00 0.00000000000E+00 1.
5  -1 -1 0 0 0 503 0.00000000000E+00 0.00000000000E+00 -8.99084923758E+00 8.99084923758E+00 0.00000000000E+00 0.00000000000E+00 1.
6  23 2 1 2 0 0 4.31808951699E+01 1.18843550193E+01 8.22005355890E+02 8.28398612649E+02 9.24425698805E+01 0.00000000000E+00 1.
7  25 2 1 2 0 0 -4.31808951699E+01 -1.18843550193E+01 7.54918696840E+02 7.66507138556E+02 1.25000508063E+02 0.00000000000E+00 1.
8  11 1 3 3 0 0 -1.35803884002E+01 -5.28931958672E+00 5.41360784563E+02 5.41556924907E+02 5.11072900539E-04 0.00000000000E+00 1.
9  -11 1 3 3 0 0 5.67612835701E+01 1.71736746060E+01 2.80644571326E+02 2.86841687743E+02 5.11012071458E-04 0.00000000000E+00 1.
10  23 2 4 4 0 0 -2.43038338852E+01 5.06442605250E+00 2.48359236741E+02 2.53284239962E+02 4.30612469142E+01 0.00000000000E+00 1.
11  23 2 4 4 0 0 -1.88770612847E+01 -1.69487810718E+01 5.06559460099E+02 5.13222898594E+02 7.84324703350E+01 0.00000000000E+00 1.
12  -13 1 7 7 0 0 -3.25370809281E+01 -6.79837669312E+00 2.02354268485E+02 2.05066186143E+02 1.05659999991E-01 0.00000000000E+00 1.
13  13 1 7 7 0 0 8.23324704291E+00 1.18628027456E+01 4.60049682560E+01 4.82180538193E+01 1.05659999989E-01 0.00000000000E+00 1.
14  -13 1 8 8 0 0 4.59433181687E+00 -3.18015647781E+01 4.39027117172E+02 4.40201395027E+02 1.05659999655E-01 0.00000000000E+00 1.
15  13 1 8 8 0 0 -2.34713931016E+01 1.48527837063E+01 6.75323429266E+01 7.30215035668E+01 1.05660000010E-01 0.00000000000E+00 1.
16 </event>
17  """

Definition at line 733 of file mela.py.

◆ event3

string mela.event3
Initial value:
1 = """
2 <event>
3 11 60 1.0000000E+00 1.2500000E+02 7.8125000E-03 1.2380607E-01
4  1 -1 0 0 501 0 0.00000000000E+00 0.00000000000E+00 8.38349783822E+01 8.38349783822E+01 0.00000000000E+00 0.00000000000E+00 1.
5  2 -1 0 0 502 0 0.00000000000E+00 0.00000000000E+00 -8.69647303563E+02 8.69647303563E+02 0.00000000000E+00 0.00000000000E+00 1.
6  4 1 1 2 501 0 4.93534233194E+01 -7.45486758049E+00 2.54822242213E+01 5.60417629563E+01 0.00000000000E+00 0.00000000000E+00 1.
7  1 1 1 2 502 0 -4.29482465415E+01 4.39907893858E+01 -7.51475061906E+02 7.53985749267E+02 0.00000000000E+00 0.00000000000E+00 1.
8  25 2 1 2 0 0 -6.40517677787E+00 -3.65359218053E+01 -5.98194874970E+01 1.43454769722E+02 1.25000000000E+02 0.00000000000E+00 1.
9  23 2 5 5 0 0 -1.61638014503E+01 -3.55963825472E+01 -2.51394501445E+01 1.03431837860E+02 9.24001201399E+01 0.00000000000E+00 1.
10  23 2 5 5 0 0 9.75862467247E+00 -9.39539258134E-01 -3.46800373525E+01 4.00229318615E+01 1.74073718437E+01 0.00000000000E+00 1.
11  -11 1 6 6 0 0 3.37109433312E+01 -2.97615359833E+01 4.38251799494E+00 4.51816687231E+01 5.11000134768E-04 0.00000000000E+00 1.
12  11 1 6 6 0 0 -4.98747447816E+01 -5.83484656388E+00 -2.95219681394E+01 5.82501691374E+01 5.11001208360E-04 0.00000000000E+00 1.
13  -13 1 7 7 0 0 1.46596263059E+01 5.33582780943E-01 -2.31337995488E+01 2.73929406894E+01 1.05660000000E-01 0.00000000000E+00 1.
14  13 1 7 7 0 0 -4.90100163341E+00 -1.47312203908E+00 -1.15462378037E+01 1.26299911721E+01 1.05660000000E-01 0.00000000000E+00 1.
15 </event>
16  """

Definition at line 750 of file mela.py.

◆ ghz1_prime2

mela.ghz1_prime2

Definition at line 801 of file mela.py.

◆ m

mela.m = Mela()

Definition at line 715 of file mela.py.

◆ mothers

string mela.mothers
Initial value:
1 = """
2  -1 0.00000000000000000 0.00000000000000000 192.71975508899998886 192.71975508899998886
3  2 0.00000000000000000 0.00000000000000000 -451.13974271600000066 451.13974271600000066
4  """

Definition at line 777 of file mela.py.

◆ prod

mela.prod = m.computeProdP(False)

Definition at line 806 of file mela.py.

SimpleParticle_t
std::pair< int, TLorentzVector > SimpleParticle_t
Definition: TVar.hh:24
SimpleParticleCollection_t
std::vector< SimpleParticle_t > SimpleParticleCollection_t
Definition: TVar.hh:25
globalc::f
double complex, dimension(2) f
Definition: reductionC.F90:50
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