19 NLO QCD & BSM with WHIZARDreuter/downloads/LCWS2019_WHIZARD.pdf · J.R.Reuter NLO QCD & BSM with WHIZARD LCWS 2019, Sendai, 31.10.19 WHIZARD: Introduction / Technical Facts 3

J.R.Reuter NLO QCD & BSM with WHIZARD LCWS 2019, Sendai, 31.10.19

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Jürgen R. Reuter, DESY

NLO QCD & BSM withWHIZARD

1


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WHIZARD Team: Wolfgang Kilian, Thorsten Ohl, JRRSimon Braß / Pia Bredt / Nils Kreher / Vincent Rothe / So Young Shim / Pascal Stienemeier

General WHIZARD reference: EPJ C71 (2011) 1742, arXiv:0708.4241

O’Mega (ME generator): LC-TOOL (2001) 040; arXiv:hep-ph/0102195

VAMP (MC integrator): CPC 120 (1999) 13; arXiv:hep-ph/9806432

CIRCE (beamstrahlung): CPC 101 (1997) 269; arXiv:hep-ph/9607454

Parton shower: JHEP 1204 (2012) 013; arXiv:1112.1039

Color flow formalism: JHEP 1210 (2012) 022; arXiv:1206.3700

NLO capabilities: JHEP 1612 (2016) 075; arXiv: 1609.03390

Parallelization of MEs: CPC 196 (2015) 58; arXiv:1411.3834

POWHEG matching: EPS-HEP (2015) 317; arXiv: 1510.02739

<[email protected]>

PUBLICATIONS

Programming Languanges: Fortran2008 (gfortran ≥5.1.0), OCaml (≥4.02.3) Standard installation: configure <FLAGS>, make, [make check], make installInstalled centrally, production runs in specific workspacesLarge self test suite, unit tests [module tests], regression testingContinous integration system (gitlab CI @ Siegen)

WHIZARD: Introduction / Technical Facts

WHIZARD v2.8.2 (24.10.2019) http://whizard.hepforge.org

http://desy.de

http://whizard.hepforge.org


/ 193WHIZARD: Introduction / Technical Facts• Universal event generator for lepton and hadron colliders (SM and BSM physics)

• Tree ME generator O’Mega optimized ME generator

Interfaces to external packages: FastJet, GoSam, GuineaPig(++), HepMC2/3, HOPPET, LCIO, LHAPDF(5/6), LoopTools, OpenLoops, PYTHIA6 [internal], PYTHIA8, Recola, StdHep [internal], Tauola [internal]

• Generator/simulation tool for lepton collider beam spectra: CIRCE1/2

Scattering processes (2→10 etc.) and [auto-] decays, factorized processes

Scripting language for the steering: SINDARIN

Beam structure: polarization, asymmetric beams, crossing angle, structured beams, decays

beams = e1, E1 beams_pol_density = @(-1), @(+1) beams_pol_fraction = 80%, 30%

beams = p, p => lhapdf $lhapdf = “NNPDF3”

beams = e1, E1 => circe2 => isr => ewa

• Two different parton shower implementations


/ 194WHIZARD: Introduction / Technical Facts

WHIZARD v2.8.2 (24.10.2019) http://launchpad.net/whizard

User questions & bug reports channeled through Launchpad sitehttp://launchpad.net/whizard

http://launchpad.net/whizard

http://launchpad.net/whizard


/ 195Inclusive Lepton Collider ISR includedSoft exponentiation to all orders

Gribov/Lipatov, 1971✏ =

↵

⇡q2e ln

⇣ s

m2

⌘

f0(x) = ✏ · (1� x)�1+✏

Hard-collinear photons up to 3rd QED orderKuraev/Fadin, 1983; Skrzypek/Jadach, 1991

f3(x) = g3(✏) f0(x)�✏

2(1 + x)

� ✏2

8

✓1 + 3x2

1� xlnx+ 4(1 + x) ln(1� x) + 5 + x

◆

� ✏3

48

✓(1 + x)

⇥6Li2(x) + 12 ln2(1� x)� 3⇡2

⇤+ 6(x+ 5) ln(1� x)

+1

1� x

3

2(1 + 8x+ 3x2) lnx+ 12(1 + x2) lnx ln(1� x)

�1

2(1 + 7x2) ln2 x+

1

4(39� 24x� 15x2)

�◆

g3(✏) = 1 +3

4✏+

27� 8⇡2

96✏2 +

27� 24⇡2 + 128⇣(3)

384✏3 ⇣(3) = 1.20205690315959428539973816151 . . .




↵

⇡q2e ln

⇣ s

m2

⌘

f0(x) = ✏ · (1� x)�1+✏


f3(x) = g3(✏) f0(x)�✏

2(1 + x)

� ✏2

8

✓1 + 3x2

1� xlnx+ 4(1 + x) ln(1� x) + 5 + x

◆

� ✏3

48

✓(1 + x)

⇥6Li2(x) + 12 ln2(1� x)� 3⇡2

⇤+ 6(x+ 5) ln(1� x)

+1

1� x

3

2(1 + 8x+ 3x2) lnx+ 12(1 + x2) lnx ln(1� x)

�1

2(1 + 7x2) ln2 x+

1

4(39� 24x� 15x2)

�◆

g3(✏) = 1 +3

4✏+

27� 8⇡2

96✏2 +

27� 24⇡2 + 128⇣(3)

384✏3 ⇣(3) = 1.20205690315959428539973816151 . . .

[from J.-J. Blaising]




↵

⇡q2e ln

⇣ s

m2

⌘

f0(x) = ✏ · (1� x)�1+✏


f3(x) = g3(✏) f0(x)�✏

2(1 + x)

� ✏2

8

✓1 + 3x2

1� xlnx+ 4(1 + x) ln(1� x) + 5 + x

◆

� ✏3

48

✓(1 + x)

⇥6Li2(x) + 12 ln2(1� x)� 3⇡2

⇤+ 6(x+ 5) ln(1� x)

+1

1� x

3

2(1 + 8x+ 3x2) lnx+ 12(1 + x2) lnx ln(1� x)

�1

2(1 + 7x2) ln2 x+

1

4(39� 24x� 15x2)

�◆

g3(✏) = 1 +3

4✏+

27� 8⇡2

96✏2 +

27� 24⇡2 + 128⇣(3)

384✏3 ⇣(3) = 1.20205690315959428539973816151 . . .

[from J.-J. Blaising]

One explicit ISR photon / beam: ISR/EPA handler generates physical pT distributions Collinear factorizarton, explicit matching: heuristic procedures LO — tbd for NLO ! Preparation for EW corrections w. NLO structure functions [Frixione, 1909.03886;

Plans for YFS / different schemes Bertone/Cacciari/Frixione/Stagnitto, in prep.]


/ 196Phase Space Integration

WHIZARD algorithm: heuristics to classify phase-space topology, adaptive multi-channel mapping ⟹ resonant, t-channel, radiation, infrared, collinear, off-shell

Complicated processes: factorization into production/decay with unstable option (also polarized)

Resonance-aware factorization for NLO processes and parton showers (e.g. e+e− → jjjj)

Integration display

?vis_history = true

- VAMP: adaptive multi-channel Monte Carlo integrator - VAMP2: fully MPI-parallelized version, using RNG stream generator


/ 197MPI Parallelization Event generation trivially parallelizable Major bottleneck: adaptive phase space integration (generation of grids) Parallelization of integration: OMP multi-threading for different helicities since long v2.5.0/2.6.4/2.7.1: MPI parallelization (using OpenMPI or MPICH) Distributes workers over multiple cores, grid adaption needs non-trivial communication Amdahl’s law:

Speedups of 10 to 30, saturation at O(100) tasks Integration times go down from weeks to hours! [can do also parallel event generation]

Load balancer is being implemented [expected for v2.8.3]

s = 11�p+ p

N

Braß/Kilian/JRR, 1811.09711 [EPJC]


/ 198Event FormatsEvent formats: conventions for outputting details of the events

sample_format = hepmc sample_format = lhef {$lhef_version = “3.0”} sample_format = stdhep, stdhep_up, stdhep_ev4 sample_format = ascii,debug,mokka,lha sample_format = lcio simulate (<process>)

• External format, ASCII: HepMC [Dobbs/Hansen, 2001]

• External format, binary: LCIO [Gaede, 2003]

• Internal formats, binary: StdHEP [Lebrun, 1990]

• Internal formats, ASCII: LHA, LHEF [Alwall et al. , 2006]








LCIO Format (LC I/O; particle-flow motivated): (ASCII transcription of binary)============================================================================ Event : 1 - run: 0 - timestamp [...] ============================================================================ date: [...] detector : unknown event parameters: parameter Event Number [int]: 1, parameter ProcessID [int]: 1, parameter Run ID [int]: 0, parameter beamPDG0 [int]: 11, parameter beamPDG1 [int]: -11, parameter Energy [float]: 500, parameter Pol0 [float]: 0, parameter Pol1 [float]: 0, parameter _weight [float]: 1, parameter alphaQCD [float]: 0.1178, parameter crossSection [float]: 338.482, parameter crossSectionError [float]: 7.2328, parameter scale [float]: 500, parameter BeamSpectrum [string]: , parameter processName [string]: lcio_5_p, collection name : MCParticle parameters: --------------- print out of MCParticle collection --------------- flag: 0x0 simulator status bits: [sbvtcls] s: created in simulation b: backscatter v: vertex is not endpoint of parent t: decayed in tracker c: decayed in calorimeter l: has left detector s: stopped o: overlay [ id ]index| PDG | px, py, pz | energy |gen|[simstat]| vertex x,y,z | mass | charge | spin | colorflow | [par] - [dau] [00000004] 0| 11| 0.00e+00, 0.00e+00, 2.50e+02| 2.50e+02| 3 |[ 0 ]| 0.0, 0.0, 0.0| 5.11e-04|-1.00e+00| 0.0, 0.0, 0.0| (0, 0) | [] - [2,3] [00000005] 1| -11| 0.00e+00, 0.00e+00,-2.50e+02| 2.50e+02| 3 |[ 0 ]| 0.0, 0.0, 0.0| 5.11e-04| 1.00e+00| 0.0, 0.0, 0.0| (0, 0) | [] - [2,3] [00000006] 2| 13| 1.42e+02, 1.99e+02,-5.22e+01| 2.50e+02| 1 |[ 0 ]| 0.0, 0.0, 0.0| 1.06e-01|-1.00e+00| 0.0, 0.0, 1.0| (0, 0) | [0,1] - [] [00000007] 3| -13|-1.42e+02,-1.99e+02, 5.22e+01| 2.50e+02| 1 |[ 0 ]| 0.0, 0.0, 0.0| 1.06e-01| 1.00e+00| 0.0, 0.0,-1.0| (0, 0) | [0,1] - []

LCIO Format: (ASCII transcription from binary)

Event header information as agreed upon with LC Gen Group








HepMC3 Format: modern implementation

NEW in WHIZARD v2.8.1


/ 199

Scanning parameter space of BSM models (or SM templates)

Major bottleneck: MC samples have to be produced over and over again

Feature: rescanning of event files with different setup

Assumption: phase space is identical, sampling can be done in the same way

works also w/ differently concatenated structure functions (e.g. ISR + beamstr.)

Open issues: rescanning with resonance matching in showered events

process reweight_8_p1 = e1, E1 => e2, E2

sqrts = 1000 n_events = 10000

?unweighted = false sample_format = weight_stream

simulate (reweight_8_p1) { $sample = "reweight_8a" iterations = 1:1000 }

?update_sqme = true rescan "reweight_8a" (reweight_8_p1) { $sample = "reweight_8c" ee = 3 * ee ! should update sqme } ?update_weight = true rescan "reweight_8a" (reweight_8_p1) { $sample = "reweight_8d" ee = 3 * ee ! should update sqme and event weight

Rescanning of Event Files

Rescan now also works with LCIO

Alternative weights/ cross sections can be written to LCIO

WHIZARD v2.8.2


/ 199

Scanning parameter space of BSM models (or SM templates)

Major bottleneck: MC samples have to be produced over and over again

Feature: rescanning of event files with different setup

Assumption: phase space is identical, sampling can be done in the same way

works also w/ differently concatenated structure functions (e.g. ISR + beamstr.)

Open issues: rescanning with resonance matching in showered events

process reweight_8_p1 = e1, E1 => e2, E2

sqrts = 1000 n_events = 10000

?unweighted = false sample_format = weight_stream

simulate (reweight_8_p1) { $sample = "reweight_8a" iterations = 1:1000 }

?update_sqme = true rescan "reweight_8a" (reweight_8_p1) { $sample = "reweight_8c" ee = 3 * ee ! should update sqme } ?update_weight = true rescan "reweight_8a" (reweight_8_p1) { $sample = "reweight_8d" ee = 3 * ee ! should update sqme and event weight

Rescanning of Event Files

Rescan now also works with LCIO

Alternative weights/ cross sections can be written to LCIO

WHIZARD v2.8.2

Alternative weights / cross sectionsentries in the LCIO event header


/ 19

Hard-coded models:

10BSM Models in WHIZARD

MODEL TYPE with CKM matrix trivial CKM

Yukawa test model --- Test

QED with e, µ, ⌧, � --- QED

QCD with d, u, s, c, b, t, g --- QCD

Standard Model SM CKM SM

SM with anomalous gauge couplings SM ac CKM SM ac

SM with Hgg, H��, Hµµ, He+e�

SM Higgs CKM SM Higgs

SM with bosonic dim-6 operators --- SM dim6

SM with charge 4/3 top --- SM top

SM with anomalous top couplings --- SM top anom

SM with anomalous Higgs couplings --- SM rx/NoH rx/SM ul

SM extensions for V V scattering --- SSC/AltH/SSC 2/SSC AltT

SM with Z0

--- Zprime

Two-Higgs Doublet Model THDM CKM THDM

Higgs Singlet Extension --- HSExt

MSSM MSSM CKM MSSM

MSSM with gravitinos --- MSSM Grav

NMSSM NMSSM CKM NMSSM

extended SUSY models --- PSSSM

Littlest Higgs --- Littlest

Littlest Higgs with ungauged U(1) --- Littlest Eta

Littlest Higgs with T parity --- Littlest Tpar

Simplest Little Higgs (anomaly-free) --- Simplest

Simplest Little Higgs (universal) --- Simplest univ

SM with graviton --- Xdim

UED --- UED

“SQED” with gravitino --- GravTest

Augmentable SM template --- Template<latexit 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/ 19

Hard-coded models:















SM with Z0

--- Zprime



MSSM MSSM CKM MSSM










UED --- UED



(external) UFO models:

WHIZARD 2.8.2 Full UFO support

well, almost full ….

New version demands OCaml ≥4.02.3

LO externals UFO models Spin 0, 1/2, 1, 2 supported, 3/2 in 2.8.3

Arbitrary Lorentz structures supported

5-, 6-point vertices (and even higher)

Missing: Majorana statistics (2.8.3) BSM SLHA input (2.8.4) crazy color structures (parsing works)


/ 19

Hard-coded models:















SM with Z0

--- Zprime



MSSM MSSM CKM MSSM










UED --- UED



Old FeynRules / SARAH interface is deprecated

kept at the moment for user backwards compatibility

(external) UFO models:

WHIZARD 2.8.2 Full UFO support

well, almost full ….

New version demands OCaml ≥4.02.3

LO externals UFO models Spin 0, 1/2, 1, 2 supported, 3/2 in 2.8.3

Arbitrary Lorentz structures supported

5-, 6-point vertices (and even higher)

Missing: Majorana statistics (2.8.3) BSM SLHA input (2.8.4) crazy color structures (parsing works)


/ 1911Models from UFO Files in WHIZARDmodel = SM (ufo) UFO file is assumed to be in working directory OR

All the setup works the same as for intrinsic models

model = SM (ufo (“<my UFO path>”)) UFO file is in user-specified directory









Minimal Mirror Twin Higgs: Lipp / JRR , in preparation


/ 19

FKS subtraction [Frixione/Kunszt/Signer, hep-ph/9512328]

Resonance-aware treatment [Ježo/Nason, 1509.09071]

Virtual MEs external

Real and virtual subtraction terms internal

NLO decays available for the NLO processes

Fixed order events for plotting (weighted)

Automated POWHEG damping and matching

Exclusive matched NLO/NLL top threshold [talk JRR, today]

NLO QCD: final clean-up NLO EW started

Approaching WHIZARD 3.0.0α (ca. end 2019)

12NLO Automation in WHIZARD

Working NLO interfaces to: ★ GoSam [N. Greiner, G. Heinrich, J. v. Soden-Fraunhofen et al.] ★ OpenLoops [F. Cascioli, J. Lindert, P. Maierhöfer, S. Pozzorini] ★ Recola [A. Denner, L. Hofer, J.-N. Lang, S. Uccirati]

NLO QCD (massless & massive) fully supported

alpha_power = 2 alphas_power = 1

process eejjj = e1,E1 => j, j, j { nlo_calculation = full }


/ 1913Validation of NLO QCD for ee CollisionsMG5 aMC WHIZARD

Process �LO[fb] �

NLO[fb] K �LO[fb] �

NLO[fb] K

e+e� ! jj 622.3(5) 639.3(1) 1.02733 622.73(4) 639.41(9) 1.02678

e+e� ! jjj 340.1(2) 317.3(8) 0.93297 342.4(5) 318.6(7) 0.9305

e+e� ! jjjj 104.7(1) 103.7(3) 0.99045 105.1(4) 103.0(6) 0.98003

e+e� ! jjjjj 22.11(6) 24.65(4) 1.11488 22.80(2) 24.35(15) 1.06798

e+e� ! jjjjjj N/A N/A N/A 6.0(2) 0.0(0) 0.0

e+e� ! bb̄ 92.37(6) 94.89(1) 1.02728 92.32(1) 94.78(7) 1.02664

e+e� ! bb̄bb̄ 1.644(3) · 10�1 3.60(1) · 10�1 2.1897 1.64(2) · 10�1 3.67(4) · 10�1 2.2378

e+e� ! tt̄ 166.2(2) 174.5(3) 1.04994 166.4(1) 174.53(6) 1.04886

e+e� ! tt̄j 48.13(5) 53.36(1) 1.10867 48.3(2) 53.25(6) 1.10248

e+e� ! tt̄jj 8.614(9) 10.49(3) 1.21777 8.612(8) 10.46(6) 1.21458

e+e� ! tt̄jjj 1.044(2) 1.420(4) 1.3601 1.040(1) 1.414(10) 1.3595

e+e� ! tt̄tt̄ 6.45(1) · 10�4 11.94(2) · 10�4 1.85117 6.463(2) · 10�4 11.91(2) · 10�4 1.8428

e+e� ! tt̄tt̄j 2.719(5) · 10�5 5.264(8) · 10�5 1.93602 2.722(1) · 10�5 5.250(14) · 10�5 1.92873

e+e� ! tt̄bb̄ 0.1819(3) 0.292(1) 1.60533 0.186(1) 0.293(2) 1.57527

e+e� ! tt̄H 2.018(3) 1.909(3) 0.94601 2.022(3) 1.912(3) 0.9456

e+e� ! tt̄Hj 0.2533(3) · 10�0 0.2665(6) · 10�0 1.05212 0.2540(9) 0.2664(5) 1.04889

e+e� ! tt̄Hjj 2.663(4) · 10�2 3.141(9) · 10�2 1.1795 2.666(4) · 10�2 3.144(9) · 10�2 1.17928

e+e� ! tt̄� 12.7(2) 13.3(4) 1.04726 12.71(4) 13.78(4) 1.08418

e+e� ! tt̄Z 4.642(6) 4.95(1) 1.06636 4.64(1) 4.94(1) 1.06467

e+e� ! tt̄Zj 0.6059(6) 0.6917(24) 1.14168 0.610(4) 0.6927(14) 1.13565

e+e� ! tt̄Zjj 6.251(28) · 10�2 8.181(21) · 10�2 1.30875 6.233(8) · 10�2 8.201(14) · 10�2 1.31573

e+e� ! tt̄W

±jj 2.400(4) · 10�4 3.714(8) · 10�4 1.54747 2.41(1) · 10�4 3.695(9) · 10�4 1.5332

e+e� ! tt̄�� 0.383(5) 0.416(2) 1.08618 0.382(3) 0.420(3) 1.09952

e+e� ! tt̄�Z 0.2212(3) 0.2364(6) 1.06873 0.220(1) 0.240(2) 1.09094

e+e� ! tt̄�H 9.75(1) · 10�2 9.42(3) · 10�2 0.96614 9.748(6) · 10�2 9.58(7) · 10�2 0.98277

e+e� ! tt̄ZZ 3.788(4) · 10�2 4.00(1) · 10�2 1.05597 3.756(4) · 10�2 4.005(2) · 10�2 1.0663

e+e� ! tt̄W

+W

� 0.1372(3) 0.1540(6) 1.1225 0.1370(4) 0.1538(4) 1.12257e+e� ! tt̄HH 1.358(1) · 10�2 1.206(3) · 10�2 0.888 1.367(1) · 10�2 1.218(1) · 10�2 0.8909

e+e� ! tt̄HZ 3.600(6) · 10�2 3.58(1) · 10�2 0.99445 3.596(1) · 10�2 3.581(2) · 10�2 0.9958

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1 TeV


/ 1914Validation of NLO QCD for pp CollisionsPOWHEG WHIZARD

Process �LO[nb] �NLO[nb] K �LO[nb] �NLO[nb] K

pp ! e+e� 0.9629(3) 1.0961(3) 1.13829 0.9637(1) 1.0962(2) 1.13742pp ! e+⌫e 5.808(1) 6.657(1) 1.14616 5.808(1) 6.649(1) 1.1448

pp ! e+e�j 1.824(3) 2.210(2) 1.2116 1.823(2) 2.920(5) 1.6017<latexit sha1_base64="cC1baTi9fsnfW3vfk8izGa5/+EE=">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</latexit>

MG5 aMC WHIZARD

Process �LO[pb] �NLO[pb] K �LO[pb] �NLO[pb] K

pp ! jj 1.162(1) · 106 1.580(7) · 106 1.3596 1.157(2) · 106 1.604(7) · 106 1.3863

pp ! Zj 7.209(5) · 103 9.745(32) · 103 1.35178 7.207(2) · 103 9.720(17) · 103 1.3487pp ! Zjj 2.348(6) · 103 2.684(5) · 103 1.14307 2.352(8) · 103 2.735(9) · 103 1.16286pp ! W±j 2.045(1) · 104 2.839(9) · 104 1.3882 2.043(1) · 104 2.845(6) · 104 1.3925pp ! W±jj 6.805(15) · 103 7.780(13) · 103 1.14326 6.798(7) · 103 7.93(3) · 103 1.1665

pp ! ZZ 1.097(3) · 101 1.4190(25) · 101 1.2935 1.094(2) · 101 1.4192(32) · 101 1.2972pp ! ZW± 2.777(3) · 101 4.485(12) · 101 1.61507 2.775(2) · 101 4.488(4) · 101 1.6173pp ! ZW±j 1.605(5) · 105 2.100(2) · 105 1.3084 1.604(6) · 101 2.103(4) · 101 1.3111

pp ! tt̄ 4.584(3) · 102 6.746(14) · 102 1.47163 4.588(2) · 102 6.740(9) · 102 1.46902pp ! tt̄j 3.135(2) · 102 4.095(8) · 102 1.30621 3.131(3) · 102 4.194(9) · 102 1.33951pp ! tt̄tt̄ 4.505(5) · 10�3 9.076(13) · 10�3 2.01466 4.511(2) · 10�3 9.070(9) · 10�3 2.01064pp ! tt̄Z 5.273(4) · 10�1 7.625(25) · 10�1 1.44604 5.281(8) · 10�1 7.639(9) · 10�1 1.4465

<latexit sha1_base64="3jJNrBZ34455IVu2PETpBBCcxMM=">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</latexit>

13 TeV


/ 1914Validation of NLO QCD for pp CollisionsPOWHEG WHIZARD

Process �LO[nb] �NLO[nb] K �LO[nb] �NLO[nb] K

pp ! e+e� 0.9629(3) 1.0961(3) 1.13829 0.9637(1) 1.0962(2) 1.13742pp ! e+⌫e 5.808(1) 6.657(1) 1.14616 5.808(1) 6.649(1) 1.1448

pp ! e+e�j 1.824(3) 2.210(2) 1.2116 1.823(2) 2.920(5) 1.6017<latexit sha1_base64="cC1baTi9fsnfW3vfk8izGa5/+EE=">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</latexit>

MG5 aMC WHIZARD

Process �LO[pb] �NLO[pb] K �LO[pb] �NLO[pb] K

pp ! jj 1.162(1) · 106 1.580(7) · 106 1.3596 1.157(2) · 106 1.604(7) · 106 1.3863

pp ! Zj 7.209(5) · 103 9.745(32) · 103 1.35178 7.207(2) · 103 9.720(17) · 103 1.3487pp ! Zjj 2.348(6) · 103 2.684(5) · 103 1.14307 2.352(8) · 103 2.735(9) · 103 1.16286pp ! W±j 2.045(1) · 104 2.839(9) · 104 1.3882 2.043(1) · 104 2.845(6) · 104 1.3925pp ! W±jj 6.805(15) · 103 7.780(13) · 103 1.14326 6.798(7) · 103 7.93(3) · 103 1.1665

pp ! ZZ 1.097(3) · 101 1.4190(25) · 101 1.2935 1.094(2) · 101 1.4192(32) · 101 1.2972pp ! ZW± 2.777(3) · 101 4.485(12) · 101 1.61507 2.775(2) · 101 4.488(4) · 101 1.6173pp ! ZW±j 1.605(5) · 105 2.100(2) · 105 1.3084 1.604(6) · 101 2.103(4) · 101 1.3111

pp ! tt̄ 4.584(3) · 102 6.746(14) · 102 1.47163 4.588(2) · 102 6.740(9) · 102 1.46902pp ! tt̄j 3.135(2) · 102 4.095(8) · 102 1.30621 3.131(3) · 102 4.194(9) · 102 1.33951pp ! tt̄tt̄ 4.505(5) · 10�3 9.076(13) · 10�3 2.01466 4.511(2) · 10�3 9.070(9) · 10�3 2.01064pp ! tt̄Z 5.273(4) · 10�1 7.625(25) · 10�1 1.44604 5.281(8) · 10�1 7.639(9) · 10�1 1.4465

<latexit sha1_base64="3jJNrBZ34455IVu2PETpBBCcxMM=">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</latexit>

b-jet selectionc-jet selection

alias ljet = u:U:d:D:s:S:gl alias jet = ljet:c:C

process charm_selec = e1, E1 => c, C, ljet, ljet, ljet, ljet

jet_algorithm = antikt_algorithm jet_r = 0.5

cuts = let subevt @clustered = cluster [jet] in let subevt @cjets = select_c_jet if Pt > 30 GeV [@clustered] in count [@selected] >= 4 and count [@cjets] == 2

13 TeV


/ 1915Photon isolation in WHIZARD

Frixione, hep-ph/9706545; hep-ph/9801442; hep-ph/9809397

• Isolate perturbative and fragmentation contributions to photons• Partons must be allowed inside isolation cone (IR-safe observables!)• Otherwise: soft-collinear IR cancellations would be spoiled • Define isolation cone around each photon: Radius δ (η–Φ space)





R distance (photon-parton): Ri� =q

�⌘2i� +��2i�

<latexit sha1_base64="5Q8Rq/ITPMNFi1Gw/tGg2LIvoF8=">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</latexit>

Reject event if partons inside δ0 -cone don’t fulfill jet isolation criterion: P

i2partons Ei✓(� �Ri�) X (�) for all � �0<latexit sha1_base64="qK7gn7xUoaT1pAYffxP4nGBrY0M=">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</latexit>

X (�) = E�✏�

✓1� cos �

1� cos �0

◆n

lim�!1

X (�) = 0<latexit sha1_base64="+sRBh1pH4WUdXoz0xe2PhJUTjio=">AAACsHicbVFNi9RAEO3ErzV+jXr0UjgIs8IOyXhQEGFRBI8rOrsD0zF0OpWZdjudbHdFGEJ+n3dv/ht7PoRx1oKGV6/qdb2uzhutHMXx7yC8cfPW7TtHd6N79x88fDR4/OTc1a2VOJW1ru0sFw61MjglRRpnjUVR5Rov8ssP6/rFD7RO1eYrrRpMK7EwqlRSkKeywU+e40KZDq/aDfOyjwB4JWgphe5mPYx4gZrEMbyDjxlfiKoSwLFxSnv531xjSSPgpRWyS+AEuKzdVtcf5FncA7dqsaTjbwb8qLfAr/zswl+iqqzbdnGquTIlrfp9L3tW4oijKfZcZ4NhPI43AddBsgNDtouzbPCLF7VsKzQktXBunsQNpZ2wpKTGPuKtw0bIS7HAuYdGVOjSbrPwHl54poCytv4Ygg27r+hE5dyqyn3n2r47rK3J/9XmLZVv0k6ZpiU0cjuobDVQDevfg0JZlKRXHghplfcKcin82sn/ceSXkBw++To4n4yTV+PJ58nw9P1uHUfsGXvORixhr9kp+8TO2JTJ4CT4EvAgDSfhLMxCsW0Ng53mKfsnwu9/AKFQ0n0=</latexit>





R distance (photon-parton): Ri� =q

�⌘2i� +��2i�

<latexit sha1_base64="5Q8Rq/ITPMNFi1Gw/tGg2LIvoF8=">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</latexit>

Reject event if partons inside δ0 -cone don’t fulfill jet isolation criterion: P

i2partons Ei✓(� �Ri�) X (�) for all � �0<latexit sha1_base64="qK7gn7xUoaT1pAYffxP4nGBrY0M=">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</latexit>

X (�) = E�✏�

✓1� cos �

1� cos �0

◆n

lim�!1

X (�) = 0<latexit sha1_base64="+sRBh1pH4WUdXoz0xe2PhJUTjio=">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</latexit>

alias ljet = u:U:d:D:s:S:gl jet_algorithm = antikt_algorithm jet_r = 0.5

process ee_aajj = e1, E1 => A, A, ljet, ljet

cuts = let subevt @clustered = cluster [jet] in photon_isolation [A, @clustered]

process ee_mmaa = e1, E1 => e2, E2, A, A

cuts = photon_isolation if Pt > 5 GeV [A, e2:E2:A]

photon_iso_eps = 1.0 photon_iso_n = 1 photon_iso_r0 = 0.4


/ 1916NLO QCD for semi-leptonic e+e− → WWBredt/Niedermeier/JRR/Rothe/Stienemeier, work in progress

K factor mostly↵s

⇡<latexit sha1_base64="cTE6DSilCoqZCT6wPQZU60n9AiI=">AAACAHicdVDLSsNAFJ3UV62vqAsXbgZbwVVJiqDLohuXFewDmhAmk0k7dDIZZiZCCdn4K25cKOLWz3Dn3zhpK/g8cLmHc+5l5p5QMKq047xblaXlldW16nptY3Nre8fe3eupNJOYdHHKUjkIkSKMctLVVDMyEJKgJGSkH04uS79/S6SiKb/RU0H8BI04jSlG2kiBfdDwolginHuIiTEKVJF7ghaNwK47zVOnBPxN3OasO3WwQCew37woxVlCuMYMKTV0HaH9HElNMSNFzcsUEQhP0IgMDeUoIcrPZwcU8NgoEYxTaYprOFO/buQoUWqahGYyQXqsfnql+Jc3zHR87ueUi0wTjucPxRmDOoVlGjCikmDNpoYgLKn5K8RjZPLQJrOaCeHzUvg/6bWaruHXrXr7YhFHFRyCI3ACXHAG2uAKdEAXYFCAe/AInqw768F6tl7moxVrsbMPvsF6/QDobJaY</latexit><latexit sha1_base64="cTE6DSilCoqZCT6wPQZU60n9AiI=">AAACAHicdVDLSsNAFJ3UV62vqAsXbgZbwVVJiqDLohuXFewDmhAmk0k7dDIZZiZCCdn4K25cKOLWz3Dn3zhpK/g8cLmHc+5l5p5QMKq047xblaXlldW16nptY3Nre8fe3eupNJOYdHHKUjkIkSKMctLVVDMyEJKgJGSkH04uS79/S6SiKb/RU0H8BI04jSlG2kiBfdDwolginHuIiTEKVJF7ghaNwK47zVOnBPxN3OasO3WwQCew37woxVlCuMYMKTV0HaH9HElNMSNFzcsUEQhP0IgMDeUoIcrPZwcU8NgoEYxTaYprOFO/buQoUWqahGYyQXqsfnql+Jc3zHR87ueUi0wTjucPxRmDOoVlGjCikmDNpoYgLKn5K8RjZPLQJrOaCeHzUvg/6bWaruHXrXr7YhFHFRyCI3ACXHAG2uAKdEAXYFCAe/AInqw768F6tl7moxVrsbMPvsF6/QDobJaY</latexit><latexit sha1_base64="cTE6DSilCoqZCT6wPQZU60n9AiI=">AAACAHicdVDLSsNAFJ3UV62vqAsXbgZbwVVJiqDLohuXFewDmhAmk0k7dDIZZiZCCdn4K25cKOLWz3Dn3zhpK/g8cLmHc+5l5p5QMKq047xblaXlldW16nptY3Nre8fe3eupNJOYdHHKUjkIkSKMctLVVDMyEJKgJGSkH04uS79/S6SiKb/RU0H8BI04jSlG2kiBfdDwolginHuIiTEKVJF7ghaNwK47zVOnBPxN3OasO3WwQCew37woxVlCuMYMKTV0HaH9HElNMSNFzcsUEQhP0IgMDeUoIcrPZwcU8NgoEYxTaYprOFO/buQoUWqahGYyQXqsfnql+Jc3zHR87ueUi0wTjucPxRmDOoVlGjCikmDNpoYgLKn5K8RjZPLQJrOaCeHzUvg/6bWaruHXrXr7YhFHFRyCI3ACXHAG2uAKdEAXYFCAe/AInqw768F6tl7moxVrsbMPvsF6/QDobJaY</latexit><latexit sha1_base64="cTE6DSilCoqZCT6wPQZU60n9AiI=">AAACAHicdVDLSsNAFJ3UV62vqAsXbgZbwVVJiqDLohuXFewDmhAmk0k7dDIZZiZCCdn4K25cKOLWz3Dn3zhpK/g8cLmHc+5l5p5QMKq047xblaXlldW16nptY3Nre8fe3eupNJOYdHHKUjkIkSKMctLVVDMyEJKgJGSkH04uS79/S6SiKb/RU0H8BI04jSlG2kiBfdDwolginHuIiTEKVJF7ghaNwK47zVOnBPxN3OasO3WwQCew37woxVlCuMYMKTV0HaH9HElNMSNFzcsUEQhP0IgMDeUoIcrPZwcU8NgoEYxTaYprOFO/buQoUWqahGYyQXqsfnql+Jc3zHR87ueUi0wTjucPxRmDOoVlGjCikmDNpoYgLKn5K8RjZPLQJrOaCeHzUvg/6bWaruHXrXr7YhFHFRyCI3ACXHAG2uAKdEAXYFCAe/AInqw768F6tl7moxVrsbMPvsF6/QDobJaY</latexit>

e+e� ! µ⌫jj<latexit sha1_base64="(null)">(null)</latexit><latexit sha1_base64="(null)">(null)</latexit><latexit sha1_base64="(null)">(null)</latexit><latexit sha1_base64="(null)">(null)</latexit>



K factor mostly↵s





K factor mostly↵s




/ 1917Interface between WHIZARD — PYTHIA8

• Intention: directly communicate between event records of WHIZARD and PYTHIA8 • No intermediate files: direct communication between event records• Allows for using all the machinery for matching and merging from PYTHIA8


/ 1917Interface between WHIZARD — PYTHIA8

• Intention: directly communicate between event records of WHIZARD and PYTHIA8 • No intermediate files: direct communication between event records• Allows for using all the machinery for matching and merging from PYTHIA8

$shower_method = “PYTHIA8” $hadronization_method = “PYTHIA8”

Allows to use the PYTHIA8 toolbox for matching


/ 1918Gridpack functionality in WHIZARD

Workspace subdirectory for GRID communication: job ID

Pack and unpack features: transfers whole directories, relies on tar

./whizard --job_id “42”

$grid_path = “<afs/…/…>”

[actually for the integration grids!]

./whizard -J “42”

or

./whizard script1_tar.sin --pack my_workspace

$compile_workspace = “my_workspace”script1_tar.sin contains

On the remote machine, you can run this with

./whizard script2_tar.sin --unpack my_workspace.tgz


/ 1919Summary & Outlook

WHIZARD 2.8.2 brings many new features

Full-fledged parallel MPI integration [Load balancer WHIZARD 2.8.3]

Full-fledged UFO interface [Majorana fermions & SLHA WHIZARD 2.8.3]

Old goodies of e+e− physics: beam spectra, e+e− ISR, LCIO, polarizations

NLO QCD done ➝ WHIZARD 3.0.0α [EW validation started]

Dedicated setup for NLO/NLL (NR)QCD top threshold matching

NEW: UFO models: [Majorana fermions & SLHA WHIZARD 2.8.3] Bottom-/Charm jet selection; photon fragmentation isolation Resonance matching to parton shower Fully integrated PYTHIA8 interface Batch mode / gridpack functionality


/ 1919Summary & Outlook

WHIZARD 2.8.2 brings many new features

Full-fledged parallel MPI integration [Load balancer WHIZARD 2.8.3]

Full-fledged UFO interface [Majorana fermions & SLHA WHIZARD 2.8.3]

Old goodies of e+e− physics: beam spectra, e+e− ISR, LCIO, polarizations

NLO QCD done ➝ WHIZARD 3.0.0α [EW validation started]

Dedicated setup for NLO/NLL (NR)QCD top threshold matching

NEW: UFO models: [Majorana fermions & SLHA WHIZARD 2.8.3] Bottom-/Charm jet selection; photon fragmentation isolation Resonance matching to parton shower Fully integrated PYTHIA8 interface Batch mode / gridpack functionality

WE’re Happy TO ACCOMODATE well-posed user requests Please use: http://launchpad.net/whizard


/ 1920

BACKUP


/ 1921Resonance mappings for NLO processes

Amplitudes (except for pure QCD/QED) contain resonances (Z, W, H, t) In general: resonance masses not respected by modified kinematics of subtraction terms Collinear (and soft) radiation can lead to mismatch between Born and subtraction terms

Algorithm to include resonance histories [Ježo/Nason, 1509.09071]

Avoids double logarithms in the resonances’ width Most important for narrow resonances (H ➝ bb) Separate treatment of Born and real terms, soft mismatch [, collinear mismatch]









WHIZARD complete automatic implementation: example e+ e− ➝ μμbb (ZZ, ZH histories)

standard FKS






WHIZARD complete automatic implementation: example e+ e− ➝ μμbb (ZZ, ZH histories)

standard FKS FKS with resonance mappings




/ 1922Top Threshold/Continuum in WHIZARD

Top threshold scan best-known method to measure top quark mass, ΔΜ ~ 30-70 MeV

Continuum top production best-known method to measure top couplings

WHIZARD provides special model for top threshold

Matches threshold resummation with NLO QCD

Allows for (almost) fully exclusive final states

Chokoufé/Hoang/Kilian/JRR/Stahlhofen/Teubner/Weiss, 1712.02220 [JHEP 1803(2018)184]

Allows to study top mass dependence of differential distributions at threshold

0

100

200

300

400

500

600

700

800

900

1000

�[fb

]

matched, no switch-offNLLmatched, combined, symmetrizedNLO

330 340 350 360 370 380ps [GeV]

0.80

0.90

1.00

1.10

1.20

Unc

erta

inti

es

330 340 350 360 370 380ps [GeV]

0

100

200

300

400

500

600

700

800

900

1000

�[fb

]


Matched inclusive W +bW �b̄ cross section, no QED ISR


/ 1923Matching threshold NLL to continuum NLO

Total uncertainty: h-f variation band and matching [switch-off function]

0

100

200

300

400

500

600

700

800

900

1000

�[fb

]


330 340 350 360 370 380ps [GeV]

0.80

0.90

1.00

1.10

1.20

Unc

erta

inti

es330 340 350 360 370 380p

s [GeV]

0

100

200

300

400

500

600

700

800

900

1000

�[fb

]


Matched inclusive W +bW �b̄ cross section, no QED ISR

Symmetrization of error bands:


/ 1924Matched threshold differential distributions


/ 1925NLO QCD Results for off-shell e+e− → tt

0

175

350

525

700

875

�[fb

]

WHIZARD+OPENLOOPS

LO tt̄NLO tt̄LO W +W �bb̄NLO W +W �bb̄

0.95

1.00

1.05

1.10

1.15

K-fa

ctor

500 1000 1500 2000 2500 3000ps [GeV]

1.0

1.25

1.5

1.75

2.0

�W

+W

�bb̄

/�

tt̄

300 350 400ps [GeV]

1.00

2.00

3.00

K-fa

ctor

e+e� ! tt̄ and e+e� ! W +W �bb̄

0.125 0.25 0.5 1.0 2.0 4.0 8.0µR/mt

0.95

0.975

1.0

1.025

�(µ

R)/

�(µ

R=

µ0)

WHIZARD+OPENLOOPS

NLO tt̄NLO W +W �bb̄, �t = �t(µR)NLO W +W �bb̄, �t = �t(mt)

e+e� ! tt̄ and e+e� ! W +W �bb̄ atp

s = 800 GeV

Chokoufé/Kilian/Lindert/Pozzorini/JRR/Weiss, 1609.03390



0

175

350

525

700

875

�[fb

]

WHIZARD+OPENLOOPS


0.95

1.00

1.05

1.10

1.15

K-fa

ctor

500 1000 1500 2000 2500 3000ps [GeV]

1.0

1.25

1.5

1.75

2.0

�W

+W

�bb̄

/�

tt̄

300 350 400ps [GeV]

1.00

2.00

3.00

K-fa

ctor


0.125 0.25 0.5 1.0 2.0 4.0 8.0µR/mt

0.95

0.975

1.0

1.025

�(µ

R)/

�(µ

R=

µ0)

WHIZARD+OPENLOOPS



s = 800 GeV




0

175

350

525

700

875

�[fb

]

WHIZARD+OPENLOOPS


0.95

1.00

1.05

1.10

1.15

K-fa

ctor

500 1000 1500 2000 2500 3000ps [GeV]

1.0

1.25

1.5

1.75

2.0

�W

+W

�bb̄

/�

tt̄

300 350 400ps [GeV]

1.00

2.00

3.00

K-fa

ctor


0.125 0.25 0.5 1.0 2.0 4.0 8.0µR/mt

0.95

0.975

1.0

1.025

�(µ

R)/

�(µ

R=

µ0)

WHIZARD+OPENLOOPS



s = 800 GeV



/ 1926

0.125 0.25 0.5 1.0 2.0 4.0 8.0µR/mt

0.95

0.975

1.0

1.025

�(µ

R)/

�(µ

R=

µ0)

WHIZARD+OPENLOOPS



s = 800 GeV

NLO QCD Results for off-shell e+e− → ttH


0.00

0.50

1.00

1.50

2.00

2.50

3.00

�[fb

]

WHIZARD+OPENLOOPS

LO tt̄HNLO tt̄HLO W +W �bb̄HNLO W +W �bb̄H

0.75

0.85

0.95

1.05

K-fa

ctor

500 1000 1500 2000 2500 3000ps [GeV]

0.90

1.05

1.20

1.35

�W

+W

�bb̄

H/�

tt̄H

425 500 575ps [GeV]

1.00

1.75

2.50

K-fa

ctor

e+e� ! tt̄H and e+e� ! W +W �bb̄H


/ 1926

0.125 0.25 0.5 1.0 2.0 4.0 8.0µR/mt

0.95

0.975

1.0

1.025

�(µ

R)/

�(µ

R=

µ0)

WHIZARD+OPENLOOPS



s = 800 GeV

NLO QCD Results for off-shell e+e− → ttH

0.125 0.25 0.5 1.0 2.0 4.0 8.0µR/(mt + mH)

0.9

0.95

1.0

1.05

�(µ

R)/

�(µ

R=

µ0)

WHIZARD+OPENLOOPS

NLO tt̄HNLO W +W �bb̄H, �t = �t(µR)NLO W +W �bb̄H, �t = �t(mt)

e+e� ! tt̄H and e+e� ! W +W �bb̄H atp

s = 800 GeV


0.00

0.50

1.00

1.50

2.00

2.50

3.00

�[fb

]

WHIZARD+OPENLOOPS

LO tt̄HNLO tt̄HLO W +W �bb̄HNLO W +W �bb̄H

0.75

0.85

0.95

1.05

K-fa

ctor

500 1000 1500 2000 2500 3000ps [GeV]

0.90

1.05

1.20

1.35

�W

+W

�bb̄

H/�

tt̄H

425 500 575ps [GeV]

1.00

1.75

2.50

K-fa

ctor

e+e� ! tt̄H and e+e� ! W +W �bb̄H


/ 1927Differential Results for off-shell e+e− → tt

m2t = m2

W +2hm2

`jbi

1� hcos ✓`jbi


/ 1928Threshold matching with QED ISR

330 340 350 360 370 380ps [GeV]

0

250

500

750

1000

�[fb

]

matched, no switch-offmatched, combined, symmetrizedNLO

Matched inclusive W +bW �b̄ cross section, with QED ISR

0

200

400

600

800

1000

�[fb

]

h = 1, f = 1h = 1/2, f = 2h = 1/2, f = 1h = 2, f = 1h = 2, f = 1/2envelopeenvelope symmetrized

330 340 350 360ps [GeV]

0.90

0.95

1.00

1.05

1.10

Scal

eva

rs

matched, no switch-off

Bach/Chokoufé/Hoang/Kilian/JRR/Stahlhofen/Teubner/Weiss, 2017


/ 1929 LHC VBS: Comparison LO & LO+PS

Ballestrero et al., 1803.07943

10-4

10-3LO

dσ/d

mj 1j

2 [fb/

GeV

]

BONSAY

MG5_aMC

MoCaNLO+Recola

PHANTOM

POWHEG

VBFNLO

WHIZARD

10-4

10-3

0.9

1

1.1

500 1000 1500 2000 2500 3000 3500 4000Ratio

/MoC

aNLO

+Rec

ola

mj1j2 [GeV]

0.9

1

1.1

500 1000 1500 2000 2500 3000 3500 4000

0

0.1

0.2

0.3

0.4

0.5LO

dσ/d

Δy j 1

j 2 [fb]

BONSAY

MG5_aMC

MoCaNLO+Recola

PHANTOM

POWHEG

VBFNLO

WHIZARD

0

0.1

0.2

0.3

0.4

0.5

0.9

1

1.1

3 4 5 6 7 8 9Ratio

/MoC

aNLO

+Rec

ola

Δyj1j2

0.9

1

1.1

3 4 5 6 7 8 9

LOLO+PS

pT,` > 20 GeV |y`| < 2.5 �R`` > 0.3

pT,miss > 40 GeV

Anti-kT jets with R = 0.4:

pT,j > 30 GeV |yj | < 4.5 �R`j > 0.3

mjj > 500 GeV |�yjj | > 2.5<latexit sha1_base64="0ogN2lf5YUV+jlU4JKdDZXQSBFk=">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</latexit><latexit sha1_base64="0ogN2lf5YUV+jlU4JKdDZXQSBFk=">AAADeHicdVLbbtNAEHUcLiXcUnjsy4i4AiSIbDcVCEFVLhI8lqpJK8WRtV5Pkk3WF7zrQrT1L/BxvPEhvPDE2nELpOlIlkYzZ845e+Qg5UxI2/7ZMJvXrt+4uXGrdfvO3Xv325sPBiLJM4p9mvAkOwmIQM5i7EsmOZ6kGZIo4HgczN+X++NTzARL4iO5SHEUkUnMxowSqUf+ZuO7F+CExYpiLDErWlbqq6NnHnJewB64tgUfcQDel5yEYHkcx/Js4ZdrL2OTqTyD1+B2d60LxAfkksChrypMTWN3d6yW53mnIiUUlRtFF0ISv0kVMSGKEtir9VbBb2PJnltz/8iCGUoBX5mcgnUIbzR1z3q1Cocl+ayk3Fn/hNlf/70r/cPsKvfKq7JXGYYFWJGvZhV0116nBjXrYgk7V96rkitaHsbhef5+u2N37argcuPUTceo68Bv//DChOaRPqecCDF07FSOFMkkoxw1eS5Q256TCQ51G5MIxUhV5gvY1pMQxkmmv1hCNf33QpFIiEUUaGRE5FSs7srhut0wl+OXI8XiNJcY06XQOOcgEyj/QghZhlTyhW4IzZj2CnRKMkJ1BqKlQ3BWn3y5Gbhdx+46n93O/rs6jg1jy3hkPDEc44Wxb3wyDoy+QRu/zC3TMrfN301oPm4+XULNRn3z0Pivmu4f4acOiQ==</latexit><latexit sha1_base64="0ogN2lf5YUV+jlU4JKdDZXQSBFk=">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</latexit><latexit sha1_base64="0ogN2lf5YUV+jlU4JKdDZXQSBFk=">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</latexit>




10-4

10-3LO

dσ/d

mj 1j

2 [fb/

GeV

]

BONSAY

MG5_aMC

MoCaNLO+Recola

PHANTOM

POWHEG

VBFNLO

WHIZARD

10-4

10-3

0.9

1

1.1

500 1000 1500 2000 2500 3000 3500 4000Ratio

/MoC

aNLO

+Rec

ola

mj1j2 [GeV]

0.9

1

1.1

500 1000 1500 2000 2500 3000 3500 4000

0

0.1

0.2

0.3

0.4

0.5LO

dσ/d

Δy j 1

j 2 [fb]

BONSAY

MG5_aMC

MoCaNLO+Recola

PHANTOM

POWHEG

VBFNLO

WHIZARD

0

0.1

0.2

0.3

0.4

0.5

0.9

1

1.1

3 4 5 6 7 8 9Ratio

/MoC

aNLO

+Rec

ola

Δyj1j2

0.9

1

1.1

3 4 5 6 7 8 9

LOLO+PS

pT,` > 20 GeV |y`| < 2.5 �R`` > 0.3

pT,miss > 40 GeV


pT,j > 30 GeV |yj | < 4.5 �R`j > 0.3





10-4

10-3LO

dσ/d

mj 1j

2 [fb/

GeV

]

BONSAY

MG5_aMC

MoCaNLO+Recola

PHANTOM

POWHEG

VBFNLO

WHIZARD

10-4

10-3

0.9

1

1.1

500 1000 1500 2000 2500 3000 3500 4000Ratio

/MoC

aNLO

+Rec

ola

mj1j2 [GeV]

0.9

1

1.1

500 1000 1500 2000 2500 3000 3500 4000

0

0.1

0.2

0.3

0.4

0.5LO

dσ/d

Δy j 1

j 2 [fb]

BONSAY

MG5_aMC

MoCaNLO+Recola

PHANTOM

POWHEG

VBFNLO

WHIZARD

0

0.1

0.2

0.3

0.4

0.5

0.9

1

1.1

3 4 5 6 7 8 9Ratio

/MoC

aNLO

+Rec

ola

Δyj1j2

0.9

1

1.1

3 4 5 6 7 8 9

LOLO+PS

pT,` > 20 GeV |y`| < 2.5 �R`` > 0.3

pT,miss > 40 GeV


pT,j > 30 GeV |yj | < 4.5 �R`j > 0.3


First official use of MPI-parallelized phase space & first published application of WHIZARD & HERWIG showering


/ 1930Keep resonances in ME-PS merging

• Problem: e+e− → jjjj not dominated by highest αs power, but by resonances e+e− → WW/ZZ → (jj)(jj)

• Solution: proper merging with resonant subprocesses by means of resonance histories • WHIZARD v2.6.0: option to set resonance histories

?resonance_history = true resonance_on_shell_limit = 4 resonance_on_shell_turnoff = 1 resonance_background_factor = 1e-10





#jets






#jets

#particles

# vis. particles

#photons

E (photon)

#charged tracks






#jets

#particles

# vis. particles

#photons

E (photon)

#charged tracks

• LC Generator Group first successful tests on e+e− → 6j ; includes tests w/ resonant H → bb


19 NLO QCD & BSM with WHIZARDreuter/downloads/LCWS2019_WHIZARD.pdf · J.R.Reuter NLO QCD & BSM with WHIZARD LCWS 2019, Sendai, 31.10.19 WHIZARD: Introduction / Technical Facts 3

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