Overview - Classification of Benchmark Points

Overall feature Signature Benchmark Points
I. Exotic decay of Higgses
Neutral Higgs to neutral Higgs + Z
H->AZ bbll, tautaull BP1_D, BP2_2, BP2_3, BP2_4
A->HZ bbll, tautaull, WWZ, ZZZ BP2_1, BP2_8, BP3_A1, BP3_A2, BP3_B1, BP3_B2
A->hZ bbll, tautaull, gagall, WWll, ZZll BP1_B, BP2_9, BP2_10
comment The heavy CP-even Higgs H being the 125 GeV SM-like Higgs or non-alignment
h->ZA Zmumu, Ztautau, Zbb BP4_ABCD
comment SM Higgs decay
Neutral Higgs to neutral Higgs + neutral Higgs
H->AA bbbb, 4tau, bbtautau, bbgaga BP2_3, BP2_3, BP2_5
H->hh bbbb, bbtautau, bbWW, bbZZ, bbgaga BP1_A, BP2_9
comment The heavy CP-even Higgs H being the 125 GeV SM-like Higgs or non-alignment
Neutral Higgs to Hpm Wmp
H->Hpm Wmp tblnu BP1_D, BP2_6, BP2_8
A->Hpm Wmp tblnu, taunulnu BP1_D, BP2_6, BP2_7, BP3_A2, BP3_B2
Neutral Higgs to H+H-
H->H+H- ttbb BP2_8
Hpm to neutral Higgs + Wpm, Hpm produced with tbHpm channel
Hpm->AW bbbbWW, tautaubbWW BP1_D, BP2_2, BP2_3, BP2_4, BP2_5
Hpm->HW bbbbWW, tautaubbWW BP2_1
Hpm->hW bbbbWW, tautaubbWW,bbZZWW, bbWWWW, bbgagaWW BP2_9, BP2_10
comment The heavy CP-even Higgs H being the 125 GeV SM-like Higgs
Long cascade
Hpm->AW->HZW bbWZ, tautauWZ BP1_E
A->Hpm Wmp ->WWH bbWW, tautauWW BP1_E
comment Small branching fraction, <5%
II. Decay of Higgses to WW, ZZ, gaga, bb, tautau
Fermiophobic heavy H, produced via H+H-, HA, H+A, H+H
H+->HW, A->HZ H->WW,ZZ, multigauge boson final states BP6
comment Small production cross section, difficult to search, a rather light, yet very elusive, non-SM scalar.
Non-alignment/H being the SM-like 125 GeV Higgs/mA~mh~125/flipped Yukawa/MSSM-like
H/h to SM final states usual SM-like Higgs search channel, higher mass BP1_A, BP1_B, BP1_C, BP1_F, BP1_G
III. One neutral Higgs being MET
H in the Inert Doublet Model, produced via H+H-, HA, H+A, H+H
H+->HW (or AW), A->HZ W/Z/WW/WZ+MET final states BP5
comment Small production cross section for some benchmarks [masses > 300 GeV], H is dark matter candidate [mass> 50 GeV], unique signal of MET. W,Z decays as in SM.. SM gauge couplings and kinematics determine production cross sections and decays

2HDM Benchmarks

This is the working page for the discussion on CP-conserving 2HDM benchmarks. Note that the list of submitted proposals below is not necessarily (yet) complete.

BP1: Howard Haber, Oscar Stål
Phenomenological benchmarks for the CP-conserving 2HDM with softly-broken Z_2-symmetry. https://twiki.cern.ch/twiki/pub/LHCPhysics/LHCHWG3Benchmarks2HDM/HH_OS_2HDM_Benchmarks.pdf

BP2: Felix Kling, Shufang Su
Benchmark points for exotic Higgs decays. https://twiki.cern.ch/twiki/pub/LHCPhysics/LHCHWG3Benchmarks2HDM/Exotic_Benchmarks.pdf

BP3: Glauber Dorsch, Stephan Huber, Ken Mimasu, Jose Miguel No
We attach our 2HDM benchmarks for LHC searches, based on our recent work 1405.5537, together with some discussion on their salient features and motivation. https://twiki.cern.ch/twiki/pub/LHCPhysics/LHCHWG3Benchmarks2HDM/2HDM_Cosmic_Benchmarks.pdf

BP4: Robin Aggleton, Daniele Barducci, Alexandre Nikitenko, Stefano Moretti, Claire Shepherd-Themistocleous
Here in attach a brief note explaining the benchmark scenarios we chose (.pdf and .tex), together with a file with the definition of the benchmarks in terms of 2HDM parameter. We are still working on other benchmark scenarios mentioned in a previous mail (higgs-to-2-Higgs topologies) and we will provide them shortly. https://twiki.cern.ch/twiki/pub/LHCPhysics/LHCHWG3Benchmarks2HDM/2HDM_WG-final.pdf

BP5: Agnieszka Ilnicka, Maria Krawczyk, Tania Robens
Please find attached a short writeup containing benchmarks for the IDM. This note should be seen as a preview of a full publication which should then be used as a reference. https://twiki.cern.ch/twiki/pub/LHCPhysics/LHCHWG3Benchmarks2HDM/IDM_benchmarks.pdf

BP6: David Lopez-Val
Following your call for 2HDM benchmark suggestions, I'd like to contribute with one of the scenarios we devised for our Higgs pair study [arXiv:1407.0281]. Please find attached all the details, hopefully complying with the indications given in your email. https://twiki.cern.ch/twiki/pub/LHCPhysics/LHCHWG3Benchmarks2HDM/fermiophobic.pdf

Description of Benchmark Points

BP2: Authors: Felix Kling, Shufang Su, "Benchmark points for exotic Higgs decays"

BP2_P1
Main Features Type II 2HDM, exotic decay of non-SM Higgses
Spectrum/input parameters mh (SM-like) = 125 GeV, mH=200 GeV, mA=350 GeV, mHpm=400 GeV, SBA=1, TB=2, m12=0 GeV
Signatures/Rates  
sigma(gg->A)*Br(A->HZ) sigma(ggA)*0.776
sigma(tbHpm)*Br(Hpm->HW) sigma(tbHpm)*0.617
Br(H -> bb) 0.877
Br(H -> tautau) 0.093
Br(H -> gaga) 0.00412
Br(H -> mumu) 0.000332
comment

BP3: Authors: Glauber Dorsch, Stephan Huber, Ken Mimasu, Jose Miguel No, "EW Cosmology Benchmarks for A -> HZ decays"

BP3_A1
Main Features Type I-II 2HDM in alignment limit, decay of non-SM Higgses: A -> HZ, Hpm -> HW
Spectrum/input parameters mh (SM-like) = 125 GeV, mH=180 GeV, mA=420 GeV, mHpm=420 GeV, SBA=1, TB=3, m12=100 GeV
sigma(gg->A)*Br(A->HZ) Type I: 2.795*0.843 [pb] Type II: 2.837*0.838 [pb]
sigma(tbHpm)*Br(Hpm->HW) Type I: sigma(tbHpm)*0.857 Type II: sigma(tbHpm)*0.854
Relevant H decay branching fraction(s) Type I: Br(H ->bb) = 0.711 Type II: Br(H ->bb) = 0.899
comment
BP3_A1_Bis
Main Features Type I-II 2HDM in alignment limit, decay of non-SM Higgses: A -> HZ
Spectrum/input parameters mh (SM-like) = 125 GeV, mH=400 GeV, mA=550 GeV, mHpm=550 GeV, SBA=1, TB=3, m12=210 GeV
sigma(gg->A)*Br(A->HZ) Type I: 0.657*0.498 [pb] Type II: 0.684*0.486 [pb]
Relevant H decay branching fraction(s) Type I: Br(H ->tt) = 0.992 Type II: Br(H ->tt) = 0.866, Br(H ->bb) = 0.115
comment Benchmark similar to BP3_A1 (sizable A-H mass splitting), but higher mH
Dominant H -> tt makes H discovery challenging via direct (ggH) production
Width_H < 1 GeV
BP3_B1
Main Features Type I 2HDM away from alignment, decay of non-SM Higgses: A -> HZ
Spectrum/input parameters mh (SM-like) = 125 GeV, mH=180 GeV, mA=400 GeV, mHpm=400 GeV, SBA=0.95, TB=2, m12=100 GeV
sigma(gg->A)*Br(A->HZ) 8.158*0.584 [pb]
Relevant H decay branching fraction(s) Type I: Br(H ->WW) = 0.715 Type II: Br(H ->ZZ) = 0.285
comment Multilepton (2,3,4) Final State
Direct H Production (ggH) suppressed for CBA>0
4-lepton Final State: m_4l does not reconstruct mH -> Heavy Higgs di-boson searches not as sensitive

BP4: Authors: R. Aggleton, D. Barducci, S. Moretti, A. Nikitenko and C. Shepherd-Themistocleous, "Benchmark points for Exotic decays of SM-like Higgs"

BP4_A
Main Features Type I 2HDM, Decay of SM Higgses into Z boson and light A=20 GeV
Spectrum/input parameters(A) mh (SM-like) = 125.97 GeV, mH=165.50 GeV, mA=20.25 GeV, mHpm=444.72 GeV, SBA=-0.99, TB=1.86, m12=62.38 GeV  
sigma(gg->h1)*Br(h1->ZA) 38.82*0.0971 [pb]
Br(A->mumu) 0.0002101
Br(A->tautau) 0.0585
Br(A->bb) 0.8496
BP4_B
Main Features Type I 2HDM, Decay of SM Higgses into Z boson and light A=63 GeV
Spectrum/input parameters(A) mh (SM-like) = 125.93 GeV, mH=153.37 GeV, mA=63.42 GeV, mHpm=444.72 GeV, SBA=-0.85, TB=6.20, m12=52.85 GeV  
sigma(gg->h1)*Br(h1->ZA) 26.59*0.0268 [pb]
Br(A->mumu) 0.0002318
Br(A->tautau) 0.0655
Br(A->bb) 0.7908
BP4_C
Main Features Type II 2HDM, Decay of SM Higgses into Z boson and light A=6 GeV
Spectrum/input parameters(A) mh (SM-like) = 125.85 GeV, mH=263.67 GeV, mA=6.28 GeV, mHpm=308.25 GeV, SBA=0.99, TB=1.89, m12=52.32 GeV  
sigma(gg->h1)*Br(h1->ZA) 52.32*0.3063 [pb]
Br(A->mumu) 0.003348
Br(A->tautau) 0.7813
Br(A->bb) 0
BP4_D
Main Features Type II 2HDM, Decay of SM Higgses into Z boson and light A=25 GeV
Spectrum/input parameters(A) mh (SM-like) = 126.27 GeV, mH=227.08 GeV, mA=24.71GeV, mHpm=226.80 GeV, SBA=0.99, TB=1.76, m12=58.37 GeV  
sigma(gg->h1)*Br(h1->ZA) 52.46*0.1526 [pb]
Br(A->mumu) 0.000224
Br(A->tautau) 0.0627
Br(A->bb) 0.9175
BP4_E
Main Features Type II 2HDM, Decay of SM Higgses into Z boson and light A=63 GeV
Spectrum/input parameters(A) mh (SM-like) = 125.19 GeV, mH=210.20 GeV, mA=63.06 GeV, mHpm=333.50 GeV, SBA=0.78, TB=2.38, m12=69.22 GeV  
sigma(gg->h1)*Br(h1->ZA) 53.46*0.03818 [pb]
Br(A->mumu) 0.000265
Br(A->tautau) 0.0747
Br(A->bb) 0.9191

BP5: Authors: Agnieszka Ilnicka, Maria Krawczyk, Tania Robens, "Benchmark planes for Inert Doublet Model"

BP5
Main Features IDM, Two Higgs doublet model with dark matter candidate (labelled H)
Benchmark planes
Floating parameters masses of scalars mH,mA, mH+
mH > 50 GeV, mass degeneracy (see plots)
Fixed parameters mh=125 GeV
Irrelevant parameters lambda2; lambda345 (if kept within allowed ranges, ~ [0.02;0.02])
BR (A -> ZH) 1
BR (H+ -> W+ H) dominant
comment only pair-production of H,A,H+ possible
signature: always missing ET from HH in final states
Z,W decay as in SM
production and decay modes determined by SM gauge couplings and kinematics
for mH< mh/2: lam345 becomes important; parameter space extremely constrained
BP5_A
Main Features Low mass H [mH < mh/2]
Spectrum/input parameters mh (SM-like) = 125.1 GeV, mH=57.5 GeV, mA=113.0 GeV, mH+=123.0 GeV, abs(lambda345) in [0.002,0.015]
sigma(pp->HA) 0.371(4) [pb]
sigma(pp->H+H-) 0.097(1) [pb]
Br(H+->W+H) >0.99
Br(H+->W+A) <0.01
BP5_B
Main Features Low mass H [mh/2 < mH < mh]
Spectrum/input parameters mh (SM-like) = 125.1 GeV, mH=85.5 GeV, mA=111.0 GeV, mH+=140.0 GeV, abs(lambda345) < 0.015
sigma(pp->HA) 0.226(2) [pb]
sigma(pp->H+H-) 0.0605(9) [pb]
Br(H+->W+H) ~0.96
Br(H+->W+A) ~0.04
BP5_C
Main Features Intermediate mass H [mH ~ mh]
Spectrum/input parameters mh (SM-like) = 125.1 GeV, mH=128.0 GeV, mA=134.0 GeV, mH+=176.0 GeV, abs(lambda345) < 0.05
sigma(pp->HA) 0.0765(7) [pb]
sigma(pp->H+H-) 0.0259(3) [pb]
Br(H+->W+H) ~0.66
Br(H+->W+A) ~0.34
BP5_D
Main Features High mass H [mH>mh]; degeneracy
Spectrum/input parameters mh (SM-like) = 125.1 GeV, mH=363.0 GeV, mA=374.0 GeV, mH+=374.0 GeV, abs(lambda345) <0.25]
sigma(pp->HA) 0.00122(1) [pb]
sigma(pp->H+H-) 0.00124(1) [pb]
Br(H+->W+H) 1.0
BP5_E
Main Features High mass H [mH>mh]
Spectrum/input parameters mh (SM-like) = 125.1 GeV, mH=311.0 GeV, mA=415.0 GeV, mHpm=447.0 GeV, abs(lambda345) <0.19
sigma(pp->HA) 0.00129(1) [pb]
sigma(pp->H+H-) 0.000553(7) [pb]
Br(H+->W+H) >0.99
Br(H+->W+A) <0.01

  • XSecHA_MM.pdf: cross sections in pb for HA production at a 13 TeV LHC, for points surviving all bounds, in the MH MA mass plane

  • XSecHpm_MM.pdf: cross sections in pb for H+ H- production at a 13 TeV LHC, for points surviving all bounds, in the MH MH+ mass plane

production cross sections produced using Madgraph5 with a manually inserted ggh vertex in the EFT description [UFO model from http://arxiv.org/abs/1303.3010]

decay widths from 2HDMC/ Madgraph5

BP6: Authors: David Lopez-Val (CP3-Univ. catholique de Louvain), "Fermiophobic heavy Higgs"

BP6
Main Features Fermiophobic heavy Higgs
Reference point
Spectrum/input parameters mh0 (SM-like) = 125 GeV, MHH=200 GeV, MA0=500 GeV, MHp=500 GeV, SA = 0, TB=20, m12=2000 GeV
Leading Signatures/Rates  
sigma(pp->HA)*Br(H->VV) sigma(HA) = 1.91 fb
sigma(pp->Hpm H)*Br(H->VV) sigma(Hpm H) = 0.88 fb
GammaH 3.39 E-03 GeV
Br(H -> ZZ) 0.742
Br(H -> WW) 0.258
Br(H -> gaga) < 10^{-4}
Br(H -> ga Z) < 10^{-4}
Br(H -> ff) 0
comment Sharp resonance into WW/ZZ
  Relatively light, yet very elusive Higgs companion
  Warning sign: lack of signal should not rule out the model too early
Benchmark planes
Floating parameters CP--even heavy Higgs mass [MHH], Mass splitting [DeltaM]
Fixed parameters Neutral Higgs mixing SA=0 (by construction)
  CP--odd Higgs mass MA0 = MHH + DeltaM
  Charged Higgs mass MHp = MA0 + DeltaM
  Z2 Soft-breaking mass $m_{12}^2 = MHH^2/Tan[b]
Fiducial TB choices (by increasing departure from alignment)
  TB=40 (small departure)
  TB=20 (moderate departure)
  TB=10 (large departure)
comment fermiophobic.pdf: Detailed description of parameter plane.

ShufangSu - 2015-07-08

Attachments Attachments
Topic attachments
ISorted ascending Attachment History Action Size Date Who Comment
PDFpdf 2HDM_Cosmic_Benchmarks.pdf r1 manage 172.5 K 2015-04-21 - 10:59 UnknownUser  
PDFpdf 2HDM_WG-final.pdf r1 manage 398.6 K 2015-05-22 - 19:04 UnknownUser  
PDFpdf Exotic_Benchmarks.pdf r1 manage 2032.1 K 2015-05-18 - 15:16 UnknownUser  
PDFpdf HH_OS_2HDM_Benchmarks.pdf r2 r1 manage 87.9 K 2015-06-24 - 21:07 UnknownUser  
PDFpdf IDM_benchmarks.pdf r1 manage 313.6 K 2015-05-18 - 15:16 UnknownUser  
PDFpdf XSecHA_MM.pdf r1 manage 52.8 K 2015-07-08 - 10:54 TaniaNatalieRobens cross sections for HA and H+ H- production at a 13 TeV LHC, for points surviving all bounds, in the respective mass planes
PDFpdf XSecHpm_MM.pdf r1 manage 52.3 K 2015-07-08 - 10:54 TaniaNatalieRobens cross sections for HA and H+ H- production at a 13 TeV LHC, for points surviving all bounds, in the respective mass planes
PDFpdf benchmarks.pdf r1 manage 192.8 K 2015-04-21 - 10:55 UnknownUser  
PDFpdf fermiophobic.pdf r1 manage 273.8 K 2015-07-08 - 11:11 UnknownUser  
PDFpdf outBRHp.pdf r1 manage 45.3 K 2015-07-08 - 12:52 TaniaNatalieRobens BRs for H+ > H W+
This topic: LHCPhysics > LHCHXSWG3 > LHCHWG3Benchmarks2HDM
Topic revision: r19 - 2015-07-13 - TaniaNatalieRobens
 
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