Φ T P 2 WHIZARD Version 2.2.0 V Thorsten Ohl Ω http://whizard.hepforge.org http://physik.uni-wuerzburg.de/ohl Institute for Theoretical Physics and Astrophysics Würzburg University Americas Workshop on Linear Colliders 2014 Fermilab / May 12-16, 2014 Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 1
Φ T WHIZARD . . . in a Nutshell P 2 WHIZARD ◮ . . . is a universal event generator for elementary processes at colliders: ◮ e + e − : LEP and TESLA/NLC ⇒ ILC, CLIC, . . . ◮ pp : Tevatron ⇒ LHC, . . . Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 2
Φ T WHIZARD . . . in a Nutshell P 2 WHIZARD ◮ . . . is a universal event generator for elementary processes at colliders: ◮ e + e − : LEP and TESLA/NLC ⇒ ILC, CLIC, . . . ◮ pp : Tevatron ⇒ LHC, . . . ◮ . . . contains 1. O’Mega: optimized automatic LO matrix elements for arbitrary elementary processes, supports SM and many BSM extensions 2. Phase-space parameterization module 3. VAMP: Generic adaptive integration and (unweighted) event generation 4. Intrinsic support or external interfaces for: Feynman rules, beam properties, cascade decays, shower, hadronization, analysis, event file formats, etc., etc. 5. Free-format steering language SINDARIN Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 2
Φ T WHIZARD Highlights P 2 ◮ Multi-Channel Monte-Carlo integration Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 3
Φ T WHIZARD Highlights P 2 ◮ Multi-Channel Monte-Carlo integration ◮ Efficient phase space and event generation (weighted & unweighted) Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 3
Φ T WHIZARD Highlights P 2 ◮ Multi-Channel Monte-Carlo integration ◮ Efficient phase space and event generation (weighted & unweighted) ◮ Optimized tree-level matrix elements (O’Mega) ◮ e + e − → t ¯ tH → b ¯ bb ¯ bjjℓν (110,000 diagrams) ◮ e + e − → ZHH → ZWWWW → bb + 8 j (12,000,000 diagrams) ◮ pp → ℓℓ + nj , n = 0, 1, 2, 3, 4, . . . (2,100,000 d/s with 4 jets + flavors) ◮ pp → ˜ χ 0 χ 0 1 ˜ 1 bbbb (32,000 d/s, 22 color flows, ∼ 10, 000 PS channels) ◮ pp → VVjj → jjℓℓνν incl. anomalous TGC/QGC ◮ Test case gg → 9 g (224,000,000 d/s) Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 3
Φ T WHIZARD Highlights P 2 ◮ Multi-Channel Monte-Carlo integration ◮ Efficient phase space and event generation (weighted & unweighted) ◮ Optimized tree-level matrix elements (O’Mega) ◮ e + e − → t ¯ tH → b ¯ bb ¯ bjjℓν (110,000 diagrams) ◮ e + e − → ZHH → ZWWWW → bb + 8 j (12,000,000 diagrams) ◮ pp → ℓℓ + nj , n = 0, 1, 2, 3, 4, . . . (2,100,000 d/s with 4 jets + flavors) ◮ pp → ˜ χ 0 χ 0 1 ˜ 1 bbbb (32,000 d/s, 22 color flows, ∼ 10, 000 PS channels) ◮ pp → VVjj → jjℓℓνν incl. anomalous TGC/QGC ◮ Test case gg → 9 g (224,000,000 d/s) ◮ active WHIZARD developers (as of 2014): F . Bach, B. Chokoufe, W. Kilian, TO, J. Reuter, M. Sekulla, C. Weiss, D. Wiesler Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 3
Φ T WHIZARD Highlights P 2 ◮ Multi-Channel Monte-Carlo integration ◮ Efficient phase space and event generation (weighted & unweighted) ◮ Optimized tree-level matrix elements (O’Mega) ◮ e + e − → t ¯ tH → b ¯ bb ¯ bjjℓν (110,000 diagrams) ◮ e + e − → ZHH → ZWWWW → bb + 8 j (12,000,000 diagrams) ◮ pp → ℓℓ + nj , n = 0, 1, 2, 3, 4, . . . (2,100,000 d/s with 4 jets + flavors) ◮ pp → ˜ χ 0 χ 0 1 ˜ 1 bbbb (32,000 d/s, 22 color flows, ∼ 10, 000 PS channels) ◮ pp → VVjj → jjℓℓνν incl. anomalous TGC/QGC ◮ Test case gg → 9 g (224,000,000 d/s) ◮ active WHIZARD developers (as of 2014): F . Bach, B. Chokoufe, W. Kilian, TO, J. Reuter, M. Sekulla, C. Weiss, D. Wiesler ◮ One Stop Shop (tarballs, svn, bugtracker, etc.): http://whizard.hepforge.org Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 3
Φ T WHIZARD Highlights P 2 ◮ Multi-Channel Monte-Carlo integration ◮ Efficient phase space and event generation (weighted & unweighted) ◮ Optimized tree-level matrix elements (O’Mega) ◮ e + e − → t ¯ tH → b ¯ bb ¯ bjjℓν (110,000 diagrams) ◮ e + e − → ZHH → ZWWWW → bb + 8 j (12,000,000 diagrams) ◮ pp → ℓℓ + nj , n = 0, 1, 2, 3, 4, . . . (2,100,000 d/s with 4 jets + flavors) ◮ pp → ˜ χ 0 χ 0 1 ˜ 1 bbbb (32,000 d/s, 22 color flows, ∼ 10, 000 PS channels) ◮ pp → VVjj → jjℓℓνν incl. anomalous TGC/QGC ◮ Test case gg → 9 g (224,000,000 d/s) ◮ active WHIZARD developers (as of 2014): F . Bach, B. Chokoufe, W. Kilian, TO, J. Reuter, M. Sekulla, C. Weiss, D. Wiesler ◮ One Stop Shop (tarballs, svn, bugtracker, etc.): http://whizard.hepforge.org ◮ Standard Reference: Kilian/TO/Reuter, EPJC 71 (2011) 1742, arXiv:0708.4233 Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 3
Φ T WHIZARD Milestones P 2 1.0 Project started around 1999: Studies for electroweak multi-particle processes at TESLA (W, Higgs, Z) Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 4
Φ T WHIZARD Milestones P 2 1.0 Project started around 1999: Studies for electroweak multi-particle processes at TESLA (W, Higgs, Z) Event samples for LC studies at SLAC Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 4
Φ T WHIZARD Milestones P 2 1.0 Project started around 1999: Studies for electroweak multi-particle processes at TESLA (W, Higgs, Z) Event samples for LC studies at SLAC 1.9 Full SM w/ QCD, beam properties, SUSY/BSM, event formats Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 4
Φ T WHIZARD Milestones P 2 1.0 Project started around 1999: Studies for electroweak multi-particle processes at TESLA (W, Higgs, Z) Event samples for LC studies at SLAC 1.9 Full SM w/ QCD, beam properties, SUSY/BSM, event formats 2.1 QCD shower+matching, FeynRules support, internal density-matrix formalism (cascade decays), language SINDARIN as user interface, OpenMP parallelization, . . . (this week’s production version) Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 4
Φ T WHIZARD Milestones P 2 1.0 Project started around 1999: Studies for electroweak multi-particle processes at TESLA (W, Higgs, Z) Event samples for LC studies at SLAC 1.9 Full SM w/ QCD, beam properties, SUSY/BSM, event formats 2.1 QCD shower+matching, FeynRules support, internal density-matrix formalism (cascade decays), language SINDARIN as user interface, OpenMP parallelization, . . . (this week’s production version) 2.2 Major refactoring of internals (same user interface), event sample reweighting, inclusive processes, improved LC beam description (currently polishing, updating manual, official release on May 17, 2014) Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 4
Φ T WHIZARD Milestones P 2 1.0 Project started around 1999: Studies for electroweak multi-particle processes at TESLA (W, Higgs, Z) Event samples for LC studies at SLAC 1.9 Full SM w/ QCD, beam properties, SUSY/BSM, event formats 2.1 QCD shower+matching, FeynRules support, internal density-matrix formalism (cascade decays), language SINDARIN as user interface, OpenMP parallelization, . . . (this week’s production version) 2.2 Major refactoring of internals (same user interface), event sample reweighting, inclusive processes, improved LC beam description (currently polishing, updating manual, official release on May 17, 2014) Plan Further improve ILC support; NLO + matching; improve user interface ⇒ adapt to specific needs of user groups Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 4
Φ T Hard matrix elements particle types P 2 ◮ Spin 0 particles ◮ Spin 1/2 fermions (Majorana and Dirac) correct Fermi statistics for both fermion-number conserving and violating cases ◮ Spin 1 particles ◮ massive and massless ◮ Unitarity, Feynman and arbitrary R ξ gauges ◮ Spin 3/2 particles (Majorana only, gravitinos) ◮ Spin 2 particles (massless and massive, gravitons) Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 5
Φ T Hard matrix elements particle types P 2 ◮ Spin 0 particles ◮ Spin 1/2 fermions (Majorana and Dirac) correct Fermi statistics for both fermion-number conserving and violating cases ◮ Spin 1 particles ◮ massive and massless ◮ Unitarity, Feynman and arbitrary R ξ gauges ◮ Spin 3/2 particles (Majorana only, gravitinos) ◮ Spin 2 particles (massless and massive, gravitons) ◮ both propagating particles and insertions of external currents ◮ unphysical particles for Ward- and Slavnov-Taylor identities Thorsten Ohl (Würzburg) WHIZARD Version 2.2.0 AWLC14 5
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