The POWHEG BOX


Project

The POWHEG BOX is a general computer framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. It is also a library, where previously included processes are made available to the users. It can be interfaced with all modern shower Monte Carlo programs that support the Les Houches Interface for User Generated Processes.

Index:

• Available NLO+PS processes


• NNLOps using MiNNLOps


• Proper references


• Downloads


• Version 2


• Version RES


• Bugs


• Licence


• Contributing Authors

Available NLO+PS Processes back to Index

• Single vector-boson production with decay, S. Alioli, P. Nason, C. Oleari and E. Re, JHEP 0807 (2008) 060, arXiv:0805.4802 [paper]

       POWHEG-BOX/W
       POWHEG-BOX/Z

• Vector boson plus one jet production with decay, S. Alioli, P. Nason, C. Oleari and E. Re, JHEP 1101 (2011) 095, arXiv:1009.5594 [paper]

        POWHEG-BOX/Zj
        POWHEG-BOX/Wj

• Single-top production in the s- and t-channel, S. Alioli, P. Nason, C. Oleari and E. Re, JHEP 0909 (2009) 111, arXiv:0907.4076 [paper]

        POWHEG-BOX/ST_sch
        POWHEG-BOX/ST_tch

• Single-top production associated with a W boson, E. Re, Eur. Phys. J. C71 (2011) 1547, arXiv:1009.2450 [paper]

        POWHEG-BOX/ST_wtch_DR
        POWHEG-BOX/ST_wtch_DS

• Higgs boson production in gluon fusion, S. Alioli, P. Nason, C. Oleari and E. Re, JHEP 0904 (2009) 002, arXiv:0812.0578 [paper]

        POWHEG-BOX/gg_H

• Higgs boson production in vector boson fusion, P. Nason and C. Oleari, JHEP 1002 (2010) 037, arXiv:0911.5299 [paper] 
From rev. 2940, the code is under the V2 version. Only this version will be maintened

        POWHEG-BOX/VBF_H
        User-Processes-V2/VBF_H

• Jet pair production , S. Alioli, K. Hamilton, P. Nason, C. Oleari and E. Re, JHEP 1104 (2011) 081, arXiv:1012.3380 [paper] ;  see also note on dijet upgrade 

        POWHEG-BOX/Dijet

        POWHEG-BOX/dijet (under ver 2)

• Heavy-quark pair production, S. Frixione, P. Nason and G. Ridolfi, JHEP 0709 (2007) 126, arXiv:0707.3088 [paper]

        POWHEG-BOX/hvq

• W+ W+ plus dijet production, T. Melia, P. Nason, R. Rontsch, G. Zanderighi, Eur. Phys. J. C71 (2011) 1670, arXiv:1102.4846 [paper]

        POWHEG-BOX/Wp_Wp_J_J

• NLO corrections merged with parton showers for Z+2 jets production using the POWHEG method, E. Re, arXiv:1204.5433, [paper]

        POWHEG-BOX/Zjj
        (Needs to be linked with an external program to compute virtual corrections. Detailed instructions are in the manual)

• ZZ, WZ and W+W- production, including Gamma/Z interference, singly resonant contributions and interference for identical leptons, T. Melia, P. Nason, R. Rontsch, G. Zanderighi, JHEP 1111 (2011) 078, arXiv:1107.5051 [paper]

POWHEG-BOX/WW
POWHEG-BOX/WZ
POWHEG-BOX/ZZ

For the same processes in POWHEG-BOX-V2 quote also:
W+W− , WZ and ZZ production in the POWHEG-BOX-V2, P. Nason and G. Zanderighi, Eur.Phys.J. C74 (2014) 2702, arXiv:1311.1365 [paper]

• W b bbar production, C. Oleari and L. Reina, JHEP 1108 (2011) 061, arXiv:1105.4488 [paper]. Available also under version 2

POWHEG-BOX/Wbb
User-Processes-V2/Wbb_nodec

• NLO corrections to electroweak and QCD production of W+W+ plus two jets, B. Jäger and G. Zanderighi, JHEP 1111 (2011) 055, arXiv:1108.0864 [paper]
  

        POWHEG-BOX/VBF_Wp_Wp

• Higgs boson production in gluon fusion with quark mass and EW effects, E. Bagnaschi, G. Degrassi, P. Slavich, A. Vicini, arXiv:1111.2854 [paper]

        POWHEG-BOX/gg_H_quark-mass-effects

• Scalar and Pseudoscalar Higgs production in gluon fusion in the MSSM, E. Bagnaschi, G. Degrassi, P. Slavich, A. Vicini, arXiv:1111.2854 [paper]

        POWHEG-BOX/gg_H_MSSM

• Scalar and Pseudoscalar Higgs production in gluon fusion in 2HDM, E. Bagnaschi, G. Degrassi, P. Slavich, A. Vicini,

        POWHEG-BOX/gg_H_2HDM

• Combining NLO QCD and electroweak radiative corrections to W-boson production at hadron colliders in the POWHEG framework, C. Bernaciak and D. Wackeroth, arXiv:1201.4804 [paper]

POWHEG-BOX/W_ew_BW

• Electroweak corrections in single W production, L. Barzé, G. Montagna, P. Nason, O. Nicrosini, F. Piccinini, arXiv:1202.0465 [paper]

POWHEG-BOX/W_ew_BMNNP

• NLO Higgs boson production plus one and two jets using the POWHEG BOX, MadGraph4 and MCFM, J.M. Campbell, R.K. Ellis, R. Frederix, P. Nason, C. Oleari, C. Williams, JHEP 1207 (2012) 092, arXiv:1202.5475 [paper] From rev. 2942, code in version 2.

POWHEG-BOX/HJ
POWHEG-BOX/HJJ
User-Processes-V2/HJJ

• Associated production of charged Higgs bosons and top quarks with POWHEG, M. Klasen, K. Kovarik, P. Nason, C. Weydert, arXiv:1203.1341 [paper]

NOT YET ADDED to the POWHEG BOX repository. Please contact the authors.

• Next-to-leading order QCD corrections to electroweak Zjj production in the POWHEG BOX, B. Jäger, S. Schneider, G. Zanderighi, arXiv:1207.2626 [paper]

POWHEG-BOX/VBF_Z

• Single-top t-channel hadroproduction in the four-flavour scheme with POWHEG and aMC@NLO, R. Frederix, E. Re, P. Torrielli, arXiv:1207.5391 [paper]
From rev. 2954, it is under the V2 version. Only this version will be maintened.

POWHEG-BOX/ST_tch_4f
User-Processes-V2/ST_tch_4f

• Slepton pair production in the POWHEG BOX, B. Jäger, A. von Manteuffel, S. Thier, arXiv:1208.2953 [paper]

POWHEG-BOX/dislepton

• Electroweak W+W- j j production, B. Jäger, and G. Zanderighi, arXiv:1301.1695 [paper]

POWHEG-BOX/VBF_Wp_Wm

• Neutral current Drell-Yan with combined QCD and electroweak corrections in the POWHEG BOX, L. Barzè, G. Montagna, P. Nason, O. Nicrosini, F. Piccinini, A. Vicini, arXiv:1302.4606 [paper]

POWHEG-BOX/Z_ew_BMNNPV

• Parton shower effects on W and Z production via vector boson fusion at NLO QCD, F. Schissler, D. Zeppenfeld, arXiv:1302.2884 [paper]

POWHEG-BOX/VBF_W-Z

• W and Z bosons in association with two jets using the POWHEG method, J.M. Campbell, R.K. Ellis, P. Nason and G. Zanderighi, arXiv:1303.5447 [paper]

POWHEG-BOX/W2jet
POWHEG-BOX/Z2jet

• Hadronic top-quark pair-production with one jet and parton showering, S. Alioli, S.O. Moch and P. Uwer, JHEP 1201 (2012) 137, arXiv:1110.5251 [paper]

POWHEG-BOX/ttJ
User-Processes-V2/ttbarj

• HW/HZ + 0 and 1 jet at NLO with the POWHEG BOX interfaced to GoSam and their merging within MiNLO, G. Luisoni, P. Nason, C. Oleari, F. Tramontano, JHEP 1310 (2013) 083, arXiv:1306.2542 [paper]. From rev. 2940, virtual contributions in HVJ are computed analytically. Exact top- and bottom-quark mass effects are included in the virtual diagrams. Hadronic and inclusive decays added. Code in version 2.

User-Processes-V2/HW
User-Processes-V2/HZ
User-Processes-V2/HWJ
User-Processes-V2/HZJ

• gg → HZ at LO, G. Luisoni, C. Oleari, F. Tramontano. Exact top- and bottom-quark mass effects included.Code in version 2.

User-Processes-V2/ggHZ

• Dark-Matter + Monojet with POWHEG, U. Haisch, F, Kahlhoefer, E. Re, arXiv:1310.4491 [paper]. Code in version 2.

User-Processes-V2/DMV
User-Processes-V2/DMGG
User-Processes-V2/DMS

• Scalar and pseudoscalar monojet production, exact top-quark mass effects included (at LO). U. Haisch, E. Re, arXiv:1503.00691 [paper]. Code in version 2.

User-Processes-V2/DMS_tloop

• W+W-, WZ and ZZ production in the POWHEG BOX V2, P. Nason and G. Zanderighi, arXiv:1311.1365 [paper]. Code in version 2.

User-Processes-V2/ZZ
User-Processes-V2/WZ
User-Processes-V2/WW

• Electroweak ZZjj production in the Standard Model and beyond in thePOWHEG-BOX V2, Barbara Jager, Alexander Karlberg and Giulia Zanderighi, arXiv:1312.3252 [paper]. Code in version 2.

User-Processes-V2/VBF_Z_Z

• Three-jet production in POWHEG, Adam Kardos, Paolo Nason and Carlo Oleari, arXiv:1402.4001 [paper]. Code in version 2.

User-Processes-V2/trijet

• VBF Higgs boson production + 3 jets, B. Jager, F. Schissler, D. Zeppenfeld, arXiv:1405.6950 [paper]. Code in version 2.

User-Processes-V2/VBF_HJJJ

• Squark production and decay, R. Gavin, C. Hangst, M. Krämer, M. Mühlleitner, M. Pellen, E. Popenda, M. Spira, arXiv:1305.4061 [paper] and arXiv:1407.7971 [paper]. Code in version 2.

User-Processes-V2/disquark

• Wγ production in hadronic collisions using the POWHEG+MiNLO method, L. Barzé, M. Chiesa, G. Montagna, P. Nason, O. Nicrosini, F. Piccinini and V. Prosperi, JHEP 1412 (2014) 039, arXiv:1408.5766 [paper] Code in version 2.

User-Processes-V2/Wgamma

• Slepton pair production in association with a jet, B. Jäger, A. von Manteuffel, S. Thier, arXiv:1410.3802 [paper]. Code in version 2.

User-Processes-V2/dislepton-jet

• Higgs boson production in association with top quarks in the POWHEG BOX, H. B. Hartanto, B. Jäger, L. Reina, D. Wackeroth, arXiv:1501.04498 [paper]. Code in version 2.

User-Processes-V2/ttH

• Higgs boson production in association with bottom quarks in the POWHEG BOX, B. Jäger, L. Reina, D. Wackeroth, arXiv:1509.05843 [paper]. Code in version 2.

User-Processes-V2/bbH

• Wbbj and Wbb production with W → l vu, G. Luisoni, C. Oleari, F. Tramontano, arXiv:1502.01213 [paper]. Code in version 2.

User-Processes-V2/Wbbj
User-Processes-V2/Wbb_dec

• t tbar production and decays, with NLO correction to the decays also treated, and off-shell effects treated at leading order, J.M. Campbell, R.K. Ellis, P. Nason and E. Re, arXiv:1412.1828 [paper]. Code in version 2.

User-Processes-V2/ttb_NLO_dec

• Electroweakino pair production at the LHC: NLO SUSY-QCD corrections and parton-shower effects, J. Baglio, B. Jäger, M. Kesenheimer, JHEP 1607 (2016) 083, arXiv:1605.06509 [paper]. Code in version 2.

User-Processes-V2/weakinos

• Precise predictions for electroweakino-pair production in association with a jet at the LHC, J. Baglio, B. Jäger, M. Kesenheimer, JHEP 1807 (2018) 055, arXiv:1711.00730 [paper]. Code in version 2.

User-Processes-V2/weakinos-jet

• Higgs production in association with a vector boson at NLO QCD including SM EFT effects, K. Mimasu, V. Sanz and C. Williams, JHEP 1608 (2016) 039, arXiv:1512.02572 [paper]. Code in version 2.

User-Processes-V2/WHanom
User-Processes-V2/ZHanom

• Higgs boson pair production with full top quark mass dependence, G. Heinrich, S.P. Jones, M. Kerner, G. Luisoni, E. Vryonidou, arXiv:1703.09252 [paper]. Code in version 2.
  G. Heinrich, S.P. Jones, M. Kerner, G. Luisoni, L.Scyboz, arxiv:1903.08137 [paper], allows to vary the trilinear Higgs coupling (and top-Higgs Yukawa coupling).
  G. Heinrich, S.P. Jones, M. Kerner, L. Scyboz, arXiv:2006.16877 [paper], allows variation of 5 anomalous couplings within a non-linear EFT

A bug in the 2-loop virtual part was corrected from svn revision 4038

User-Processes-V2/ggHH

• Higgs boson pair production at full NLO QCD in SMEFT. SMEFT in Warsaw basis, choice of Wilson coefficients, new physics scale and different truncation options available, G. Heinrich, J. Lang, L. Scyboz, arxiv:2204.13045 [paper].
  Chromomagnetic operator and 4-top operators included since revision 4042, G. Heinrich, J. Lang, arxiv:2311.15004 [paper].
  Running Wilson Coefficients available since revision 4079, G. Heinrich, J. Lang, arxiv:2409.19578 [paper].
  
  A bug in the 2-loop virtual part was corrected from svn revision 4037
  
  Code in version 2
  
  User-Processes-V2/ggHH_SMEFT
  

• An NLO+PS generator for t tbar and Wt production and decay including non-resonant and interference effects, T. Ježo, J.M. Lindert, P. Nason, C. Oleari, S. Pozzorini, arXiv:1607.04538 [paper]. Code in version RES.

User-Processes-RES/b_bbar_4l, first released at svn revision 3239.

• NLO QCD+EW predictions for HV and HV +jet production including parton-shower effects, F. Granata, J.M. Lindert, C. Oleari, S. Pozzorini, arXiv:1706.03522 [paper]. Code in version RES.

User-Processes-RES/HW_ew
User-Processes-RES/HWJ_ew
User-Processes-RES/HZ_ew
User-Processes-RES/HZJ_ew

• NLO QCD+NLO EW corrections to diboson production matched to parton shower, M. Chiesa, C. Oleari, E. Re, arXiv:2005.12146 [paper]. Code in version RES.

User-Processes-RES/VV_dec_ew

• Prompt photon production and photon-hadron jet correlations with POWHEG, T. Ježo, M. Klasen, C. Klein-Bösing, F. König, H. Poppenborg, arXiv:1610.02275, arXiv:1709.04154, paper 1, paper 2.
Code in version 2.

User-Processes-V2/directphoton

• Merging WW and WW+jet with MINLO, K. Hamilton, T. Melia, P. F. Monni, E. Re, G. Zanderighi, arXiv:1606.07062 [paper].
NNLOPS accurate predictions for W+W− production, E. Re, M. Wiesemann, G. Zanderighi, arXiv:1805.09857 [paper]. [refer to the manual to cite all relevant papers when NNLOPS-accurate events are generated]
Code in version 2.

User-Processes-V2/WWJ

• Next-To-Leading Order QCD Corrections to Associated Production of a SM Higgs Boson with a Pair of Weak Bosons in the POWHEG-BOX, Julien Baglio, Phys.Rev. D93 (2016) 054010, arXiv:1512.05787 [paper] and
  Gluon fusion and b-bbar corrections to H W+ W- / H Z Z production in the POWHEG-BOX, Julien Baglio, Phys.Lett. B764 (2017) 54-59, arXiv:1609.05907 [paper].
  Code in version 2.

User-Processes-V2/HVV

• NLO QCD corrections to SM-EFT dilepton and electroweak Higgs boson production, matched to parton shower in POWHEG, S. Alioli, W. Dekens, M.Girard, E. Mereghetti, JHEP 1808 (2018) 205, arXiv:1804.07407 [paper] and
  Right-handed charged currents in the era of the Large Hadron Collider, S. Alioli, V. Cirigliano, W. Dekens, J. de Vries, E. Mereghetti, arXiv:1703.04751 [paper].
  Code in version 2.

User-Processes-V2/Z_smeft
User-Processes-V2/W_smeft
User-Processes-V2/HZ_smeft
User-Processes-V2/HW_smeft
User-Processes-V2/VBF_H_smeft

• NLO Effects in EFT Fits to W+W- Production at the LHC, J. Baglio, S. Dawson, I.M. Lewis, Phys. Rev. D 99, 035029 (2019), arXiv:1812.00214 [paper]
  Code in version 2.

User-Processes-V2/WWanomal

• QCD Corrections in SMEFT Fits to WZ and WW Production, J. Baglio, S. Dawson, and S. Homiller, arXiv:1909.11576 [paper]
  Code in version 2.

User-Processes-V2/WZanomal

• Parton-shower effects in electroweak WZjj production at the next-to-leading order of QCD, B. Jager, A. Karlberg, J. Scheller, Eur. Phys.J. C79 (2019) no.3, 226, arXiv:1812.05118 [paper]. Code in version 2. Both W+Z and W-Z available.

User-Processes-V2/VBF-WZ

• Same-sign W-boson scattering at NLO EW, M. Chiesa, A. Denner, J. Lang, M. Pellen, Eur.Phys.J. C79 (2019) no.9, 788, arXiv:1906.01863 [paper].
  Code in version RES.

User-Processes-RES/vbs-ssww-nloew

• NNLOPS description of the H -> bb decay with MiNLO, W. Bizon, E. Re, and G. Zanderighi, arxiv 1912.09982 [paper].
  Code in version 2.

User-Processes-V2/h_bbg

• An interface between the POWHEG BOX and MadGraph5_aMC@NLO, P. Nason, C. Oleari, M. Rocco, M. Zaro, arXiv:2008.06364 [paper].
  
  Code for version 2.

• Scalar X0 production plus two jets: Higgs-like boson production + 2 jets with CP-violating couplings, P. Nason, C. Oleari, M. Rocco, M. Zaro, arXiv:2008.06364 [paper].
  
  INSTALLATION instructions can be found here.
  
  Script to clean the directory BEFORE the svn checkout (see the INSTALLATION instructions) can be found here.
  
  User-Processes-V2/X0jj
  

• Top-quark pair production in association with a W± gauge boson in the POWHEG-BOX, F. Febres Cordero, M. Kraus, L. Reina, arXiv:2101.11808 [paper]
  
  User-Processes-V2/Wtt_dec
  

• Hadroproduction of four top quarks in POWHEG BOX, T. Ježo, M. Kraus, arXiv:2110.15159 [paper]
  
  User-Processes-V2/fourtops
  

• Next-to-leading-order QCD corrections and parton-shower effects for weakino+squark production at the LHC, J. Baglio, G. Coniglio, B. Jäger, M. Spira, JHEP 12 (2021) 020, arXiv:2110.04211 [paper].
  Code in version 2.
  
  User-Processes-V2/weakino-squark
  

• NLO QCD corrections to 4 lepton production in gluon fusion, including the Higgs-mediated contribution, the diboson background and their interference, S. Alioli, S. Ferrario Ravasio, J. Lindert, R. Roentsch, arXiv:2102.07783 [paper].
  Code in version RES.

User-Processes-RES/gg4l

• Hadronic production of top-quark pairs in association with a pair of leptons in the POWHEG BOX framework, M. Ghezzi, B. Jager, S. Lopez Portillo Chavez, L. Reina, D. Wackeroth, arXiv:2112.08892 [paper].
  Code in version 2.
  
  User-Processes-V2/ttZ
  User-Processes-V2/ttll
  

• Dilepton Drell-Yan production in scalar leptoquark models at NLO in QCD, U. Haisch, L. Schnell and S. Schulte, arXiv:2207.00356 [paper].
  Code in version 2.
  
  User-Processes-V2/DY_SLQ_NLO/
  

• Drell-Yan production in third-generation gauge vector leptoquark models at NLO+PS in QCD, U. Haisch, L. Schnell and S. Schulte, arXiv:2209.12780 [paper].
  Code in version 2.
  
  User-Processes-V2/DY_VLQ_NLO/
  

• Resonant leptoquark at NLO with POWHEG, L. Buonocore, A. Greljo, P. Krack, P. Nason, N. Selimovic, F. Tramontano and G. Zanderighi, arXiv:2209.02599, [paper].
  Code in version RES.
  
  User-Processes-RES/LQ-s-chan/
  

• Electroweak corrections and shower effects to Higgs production in association with two jets at the LHC, B. Jäger and J. Scheller, JHEP 09 (2022) 191, arXiv:2208.00013 [paper].
  Code in version RES.
  
  User-Processes-RES/HJJ_ew
  

• NNLO+PS Monte Carlo simulation of photon pair production with MiNNLO_PS​, A. Gavardi, C. Oleari and E. Re, JHEP 09 (2022) 061, arXiv:2204.12602 [paper].
  Code in version RES. Ask the authors for the code.
  
  User-Processes-RES/diphotonjet
  

• NLO + parton-shower generator for Wc production in the POWHEG BOX RES, S. Ferrario Ravasio and C. Oleari, Eur.Phys.J.C 83 (2023) 7, 684, arXiv:2304.13791 [paper].
  Code in version RES.
  
  User-Processes-RES/Wc
  

• New NLOPS predictions for tt~ + b-jet production at the LHC, T. Ježo, J. Lindert and S. Pozzorini, arXiv:1802.00426 [paper].
  Code in version RES.
  
  https://gitlab.cern.ch/tjezo/powheg-box-res_ttbb (follow the link for installation instructions)
  

• A POWHEG generator for deep inelastic scattering, A. Banfi, S. Ferrario Ravasio, B. Jager, A. Karlberg, F. Reichenbach and G. Zanderighi, arXiv:2309.02127 [paper], JHEP 02 (2024), 023. Parton-shower effects in polarized deep inelastic scattering, I. Borsa and B. Jäger, arXiv:2404.07702 [paper]. An event generator for neutrino-induced Deep Inelastic Scattering and applications to neutrino astronomy, S. Ferrario Ravasio, R. Gauld, B. Jager, A. Karlberg, G. Zanderighi, arXiv:2407.03894 [paper] .
  Code in version RES.
  
  User-Processes-RES/DIS
  

• A POWHEG generator for deep inelastic scattering, including neutrino scattering and massive final states (i.e. tau leptons and/or charm quarks) L. Buonocore, G. Limatola, P. Nason and F. Tramontano arXiv:2406.05115 [paper],
  Code in version V2.
  
  User-Processes-V2/nu-DIS
  

• Higgs boson pair production at full NLO QCD with arbitrary modification of the trilinear and quartic coupling, W. Bizon, U. Haisch and L. Rottoli, arXiv:1810.04665 [paper], Z. Gillis, B. Moser, L. Rottoli and P. Windischhofer, arXiv:2402.03463 [paper].
  Based on svn revision 4038 of User-Processes-V2/ggHH. Please cite also arXiv:1703.09252 and arXiv:1903.08137 when using the code.
  Code in version 2.
  
  User-Processes-V2/ggHH_quartic
  

Available NNLO+PS Processes using MiNNLO_PS back to Index

(References of the MiNNLO_PS procedure: P. Monni, P. Nason, E. Re, M. Wiesemann and G. Zanderighi, JHEP 05 (2020) 143, arXiv:1908.06987 [paper], P. Monni, E. Re and M. Wiesemann, Eur. Phys. J. C80 (2020), no.11, 1075, arXiv:2006.04133 [paper])

• Single vector-boson production with decay, P. Monni, P. Nason, E. Re, M. Wiesemann and G. Zanderighi, JHEP 05 (2020) 143, arXiv:1908.06987 [paper], P. Monni, E. Re and M. Wiesemann, Eur. Phys. J. C80 (2020), no.11, 1075, arXiv:2006.04133 [paper]

       POWHEG-BOX-V2/Zj    (inside ZjMiNNLO subfolder)
       POWHEG-BOX-V2/Wj    (inside WjMiNNLO subfolder)

• Higgs boson production in gluon fusion, P. Monni, P. Nason, E. Re, M. Wiesemann and G. Zanderighi, JHEP 05 (2020) 143, arXiv:1908.06987 [paper], P. Monni, E. Re and M. Wiesemann, Eur. Phys. J. C80 (2020), no.11, 1075, arXiv:2006.04133 [paper]

       POWHEG-BOX-V2/HJ    (inside HJMiNNLO subfolder)

• Next-to-Next-to-Leading Order Event Generation for Top-Quark Pair Production, J. Mazzitelli, P. Monni, P. Nason, E. Re, M. Wiesemann and G. Zanderighi, Phys.Rev.Lett. 127 (2021) 062001, arXiv:2012.14267 [paper], Top-pair production at the LHC with MiNNLO_PS, J. Mazzitelli, P. Monni, P. Nason, E. Re, M. Wiesemann and G. Zanderighi, arXiv:2112.XXXXX [paper]

        POWHEG-BOX-V2/ttJ_MiNNLO

• Advancing MiNNLO_PS to diboson processes: Zγ production at NNLO+PS, D. Lombardi, M. Wiesemann and G. Zanderighi, JHEP 2106 (2021) 095, arXiv:2010.10478 [paper], Anomalous couplings in Zγ events at NNLO+PS and improving ννγ backgrounds in dark-matter searches, D. Lombardi, M. Wiesemann and G. Zanderighi, Phys.Lett. B XX (2021) XXX, arXiv:2108.11315 [paper]

        POWHEG-BOX-RES/ZgamJ

• W⁺W^- production at NNLO+PS with MINNLO_PS, D. Lombardi, M. Wiesemann and G. Zanderighi, JHEP 2111 (2021) 230, arXiv:2103.12077 [paper]

        POWHEG-BOX-RES/WWJ

• ZZ production at nNNLO+PS with MINNLO_PS, L. Buonocore, G. Koole, D. Lombardi, L. Rottoli, M. Wiesemann, G. Zanderighi, arXiv:2108.05337 [paper]

        POWHEG-BOX-RES/ZZJ

• WZ production at NNLO QCD and NLO EW matched to parton showers with MiNNLO_PS, J. Lindert, D. Lombardi, M. Wiesemann, G. Zanderighi, S. Zanoli, arXiv:2208.12660 [paper]

        POWHEG-BOX-RES/WZJ







Proper references back to Index

In addition to the specific subprocess reference, the following papers should always be cited while using the POWHEG BOX:

• P. Nason, JHEP 0411 (2004) 040, hep-ph/0409146 [paper]
• S. Frixione, P. Nason and C. Oleari, JHEP 0711 (2007) 070, arXiv:0709.2092 [paper]
• S. Alioli, P. Nason, C. Oleari and E. Re, JHEP 1006 (2010) 043, arXiv:1002.2581 [paper]

If you use the RES package, please quote also

• Tomáš Ježo and Paolo Nason, JHEP 1512 (2015) 065, arXiv:1509.09071 [paper]

For a pedagogical introduction to the underlying theory, look at Next-to-Leading-Order Event Generators, P. Nason and B. Webber, 2012




Download back to Index


The POWHEG BOX is made available only via SVN, with the command:

$ svn checkout [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/trunk/POWHEG-BOX

The optional argument --revision n is used to specify which svn version to get. Omitting the argument, one gets the latest version.

Since revision 2801, the POWHEG BOX files, without user processes, have been mirrored in svn://powhegbox.mib.infn.it/trunk/POWHEG-BOX-NoUserProcesses. Further fixes to this version will only be made in this directory. Thus, users should first download

$ svn checkout svn://powhegbox.mib.infn.it/trunk/POWHEG-BOX-NoUserProcesses POWHEG-BOX

then do

$ cd POWHEG-BOX
$ svn checkout svn://powhegbox.mib.infn.it/trunk/POWHEG-BOX/"process-of-interest"

This is to avoid having to download all user processes when we are only interested into one.



VERSION 2 back to Index


Processes may still be developed in V2, although RES is now recommended. Older processes will be ported on V2 upon request to the respective authors.
To get the V2 version do
$ svn checkout [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/trunk/POWHEG-BOX-V2

User processes should be downloaded independently. This is to avoid long downloads from the svn server. They are in the subdirectories in svn://powhegbox.mib.infn.it/trunk/User-Processes-V2.
Do:
$ svn list [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/trunk/User-Processes-V2
to get a list of available processes.

Do:
$ svn co [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/trunk/User-Processes-V2/XXX
to download process XXX. In order to compile XXX you should put it in the POWHEG-BOX-V2 directory.







VERSION RES (first release: svn revision 3239) back to Index



The POWHEG BOX RES (Tomáš Ježo and Paolo Nason, JHEP 1512 (2015) 065, arXiv:1509.09071 [paper]) can deal with radiation in decaying resonaces. To get the RES version do
$ svn checkout [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/trunk/POWHEG-BOX-RES

User processes should be downloaded independently. This is to avoid long downloads from the svn server. They are in the subdirectories in svn://powhegbox.mib.infn.it/trunk/User-Processes-RES.
Do:
$ svn list [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/trunk/User-Processes-RES
to get a list of available processes.

Do:
$ svn co [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/trunk/User-Processes-RES/XXX
to download process XXX. In order to compile XXX you should put it in the POWHEG-BOX-RES directory.

You need a recent version of the gfortran compiler to compile it.
At CERN, do:
source /afs/cern.ch/sw/lcg/contrib/gcc/5.2/x86_64-slc6-gcc52-opt/setup.sh

As a first thing, go to the process directory and do:
$ make check

BUGS back to Index




A list of found bugs in the V1 (trunk/POWHEG-BOX) version can be found here. Bugs are corrected immediately in the trunk version, that can be considered the most up-to-date version of the POWHEG BOX.




A list of found bugs in the V2 (trunk/POWHEG-BOX-V2) version can be found here. Bugs are corrected immediately in the V2 version, that can be considered the most up-to-date version of the POWHEG BOX V2.




A list of found bugs in the RES (trunk/POWHEG-BOX-RES) version can be found here. Bugs are corrected immediately in the RES version, that can be considered the most up-to-date version of the POWHEG BOX RES.






The previous trunk (before 29 March 2011) is made available at

$ svn checkout [--revision n] --username anonymous --password anonymous svn://powhegbox.mib.infn.it/tags/trunk00/POWHEG-BOX


Previous implementations can be found in the old web page.




Licence back to Index



The POWHEG BOX is distributed under the following license, according to the MCNet Guidelines for Event Generators Authors and Users.




Contributing Authors back to Index

Up to now, the following people have contributed to the POWHEG BOX:
Simone Alioli, Keith Hamilton, Paolo Nason, Carlo Oleari, Emanuele Re, Giulia Zanderighi, Tomáš Ježo .