Welcome to Sherpa, Daniel Reichelt on ip3-cpu4.phyip3.dur.ac.uk. Initialization of framework underway ... Local time: Wed Jan 29 08:57:26 2025 Seed mode: '*' Memory limit: 502.838 GB Seed: 1100 ┌──────────────────────────────────────────────────────────────────────────────┐ │  ._ │ │  .-#. │ │  .--+@. . │ │  .----@@. +#- │ │  .-----+@@. +**@- SHERPA v3.1.x (Erebus) │ │  :- .-------@@@+***#@- │ │  :=#* .--------+@+*****@@- Monte Carlo event generator │ │  :===@* .----------+******#@@- │ │  :====#@*----------+********@@@- https://sherpa-team.gitlab.io │ │  :======@@*--------+*********#@@@- │ │ │ │ Authors: Enrico Bothmann, Lois Flower, Christian Gutschow, │ │ Stefan Hoeche, Mareen Hoppe, Joshua Isaacson, │ │ Max Knobbe, Frank Krauss, Peter Meinzinger, │ │ Davide Napoletano, Alan Price, Daniel Reichelt, │ │ Marek Schoenherr, Steffen Schumann, Frank Siegert │ │ Former Authors: Gurpreet Singh Chahal, Timo Fischer, Tanju Gleisberg, │ │ Hendrik Hoeth, Johannes Krause, Silvan Kuttimalai, │ │ Ralf Kuhn, Thomas Laubrich, Sebastian Liebschner, │ │ Andreas Schaelicke, Holger Schulz, Jan Winter │ │ │ │ Users are kindly asked to cite SciPost Phys 7 (2019) 3, 034. │ │ │ │ This program uses a lot of genuine and original research work by others. │ │ Users are encouraged to also cite the various original publications. │ │ │ └──────────────────────────────────────────────────────────────────────────────┘ WARNING: You are using an unsupported development branch. Git branch: master Revision: bbdb0a3424e31c55cb7d4b228e23d79fce6682a7. -> CSSHOWER++/Calculators has local modifications: 4bc13e170c26ca5801c20bccc1055904 -> CSSHOWER++/Showers has local modifications: a109c7fbf0673af17f111093a5ee6d42 Initializing hadron particle information ... Initializing beam spectra ... Type: Collider Setup Beam 1: P+ (enabled = 0, momentum = (6800,0,0,6800)) Beam 2: P+ (enabled = 0, momentum = (6800,0,0,-6800)) Initializing PDFs ... Hard scattering: PDF4LHC21_40_pdfas + PDF4LHC21_40_pdfas MPI: PDF4LHC21_40_pdfas + PDF4LHC21_40_pdfas Fixed electroweak parameters Input scheme: Gmu scheme, input: GF, m_W, m_Z, m_h, widths Ren. scheme: Gmu Parameters: sin^2(\theta_W) = 0.223043 - 0.00110541 i vev = 246.22 Set \alpha according to EW scheme 1/\alpha(0) = 137.036 1/\alpha(def) = 132.12 Particle data: ┌─────────────────────────────────────────────────────────────────────────────────────────┐ │ Name Kf-code Mass Width Stable Massive Active Yukawa │ ├─────────────────────────────────────────────────────────────────────────────────────────┤ │ d 1 0.01 0 1 0 1 0 │ │ u 2 0.005 0 1 0 1 0 │ │ s 3 0.2 0 1 0 1 0 │ │ c 4 1.42 0 1 0 1 0 │ │ b 5 4.92 0 1 0 1 0 │ │ t 6 172.5 1.32 0 1 1 172.5 │ │ e- 11 0.000511 0 1 0 1 0 │ │ ve 12 0 0 1 0 1 0 │ │ mu- 13 0.105 0 1 0 1 0 │ │ vmu 14 0 0 1 0 1 0 │ │ tau- 15 1.777 2.26735e-12 0 0 1 0 │ │ vtau 16 0 0 1 0 1 0 │ │ G 21 0 0 1 0 1 0 │ │ P 22 0 0 1 0 1 0 │ │ Z 23 91.1876 2.4952 0 1 1 91.1876 │ │ W+ 24 80.379 2.085 0 1 1 80.379 │ │ h0 25 125 0 0 1 1 125 │ │ Instanton 999 0 0 0 0 1 0 │ └─────────────────────────────────────────────────────────────────────────────────────────┘ Particle containers: ┌─────────────────────────────────────────────────────────────────────────────────────────┐ │ Name Kf-code Constituents │ ├─────────────────────────────────────────────────────────────────────────────────────────┤ │ l 90 e-, e+, mu-, mu+, tau-, tau+ │ │ v 91 ve, veb, vmu, vmub, vtau, vtaub │ │ f 92 d, db, u, ub, s, sb, c, cb, b, bb, e-, e+, mu-, mu+, │ │ tau-, tau+, ve, veb, vmu, vmub, vtau, vtaub │ │ j 93 d, db, u, ub, s, sb, c, cb, b, bb, G │ │ Q 94 d, db, u, ub, s, sb, c, cb, b, bb │ │ ewj 98 d, db, u, ub, s, sb, c, cb, b, bb, G, P │ └─────────────────────────────────────────────────────────────────────────────────────────┘ Reading in parameters for P+ yields: Primordial k_T Form = None Primordial k_T Recoil = Beam_vs_Shower Matter Form = Single_Gaussian BEAM_SPECTATOR_KTEXPO = 5 BEAM_SPECTATOR_KTMAX = 1 BEAM_SPECTATOR_MEAN = 0 BEAM_SPECTATOR_Q2 = 0.77 BEAM_SPECTATOR_SIGMA = 0.25 ENERGY_SCALING_EXPO = 0.08 MATTER_FRACTION_1 = 1 MATTER_RADIUS_1 = 0.86 MATTER_RADIUS_2 = 0 REFERENCE_ENERGY = 7000 SHOWER_INITIATOR_KTEXPO = 5.12 SHOWER_INITIATOR_KTMAX = 2.7 SHOWER_INITIATOR_MEAN = 1 SHOWER_INITIATOR_Q2 = 0.77 SHOWER_INITIATOR_SIGMA = 1.1 Initializing primordial transverse momentum ... Initializing remnants ... Hard process: P+ (Hadron) + P+ (Hadron) Initializing showers ... Initializing matrix elements for the hard processes ... Initializing Comix ... Massive PS flavours for Comix: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Massive PS flavours for Amegic: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Massive PS flavours for Internal: (c,cb,b,bb,e-,e+,mu-,mu+,tau-,tau+) Building processes (3 ME generators, 1 process blocks) ... Setting up processes ME_Generators::LoadGenerator(): Try loading 'OpenLoops' from 'libSherpaOpenLoops'. Initialising OpenLoops generator from /mt/home/dreichelt/hepsoftware/src/OpenLoops/. #################################################################### # ___ ___ ____ _ _ __ __ ___ __ ___ # # / \ |__| |__ |\ | | / \ / \ |__| /__ __/ # # \___/ | |___ | \| |__ \__/ \__/ | __/ /__ # # You are using OpenLoops 2 to evaluate loop amplitudes # # F. Buccioni, J.-N. Lang, J. Lindert, P. Maierhoefer, # # S. Pozzorini, M. Zoller, H. Zhang # # Eur.Phys.J. C79 (2019) no.10, 866 # # arXiv:1907.13071 # #################################################################### ......................................................................................................................................................................................................................................................................................................................................................... done (258 MB, 12s/12s) Performing tests ........ Amplitude::GaugeTest(): Large deviation { 5.40240777757e-21 vs 5.4024077776e-21 => -4.87854201481e-12 } . Amplitude::GaugeTest(): Large deviation { 2.18948621504e-21 vs 2.18948621503e-21 => 5.06461539374e-12 } .. Amplitude::GaugeTest(): Large deviation { 4.22546568412e-25 vs 4.22546568409e-25 => 5.39945865796e-12 } ....... Amplitude::GaugeTest(): Large deviation { 9.26325366625e-23 vs 9.26325366632e-23 => -7.21922521763e-12 } ............ Amplitude::GaugeTest(): Large deviation { 1.53961995291e-23 vs 1.53961995291e-23 => -2.07955874743e-12 } . Amplitude::GaugeTest(): Large deviation { 1.47379022554e-21 vs 1.47379022555e-21 => -2.94964053182e-12 } .....WARNING: last allowed error message from 'GaugeTest'  Amplitude::GaugeTest(): Large deviation { 1.31824392501e-20 vs 1.31824392502e-20 => -4.61009008745e-12 } .................................................................................................... done (258 MB, 0s/0s) Initializing scales........................................................................ done (260 MB, 0s/0s) Initializing the beam remnants ... Multiple interactions initialized id = 2, name = None, type = 0 Underlying event/multiple interactions initialized MI[2]: on = 0 (type = 0, None) Initialized fragmentation Initialized soft photons Initialized on-the-fly reweighting ===> AddOns/Rivet has local modifications df7736c863ac2b9155db51c777b9f0c4 <=== Read in channels from directory: Results/Amegic/MC_2_3__j__j__h0__j__j__QCD(BVI) Calculating xs for '2_3__j__j__h0__j__j__QCD(BVI)' (Amegic+OpenLoops) ... 2_3__j__j__h0__j__j__QCD(BVI) : 5.96100664476 pb +- ( 0.0634172095454 pb = 1.06386745268 % )  exp. eff: 0.104225558705 % Read in channels from directory: Results/Comix/MC_2_4__j__j__h0__j__j__j__QCD(RS) Calculating xs for '2_4__j__j__h0__j__j__j__QCD(RS)' (Comix) ... 2_4__j__j__h0__j__j__j__QCD(RS) : 0.156547087194 pb +- ( 0.0550446800857 pb = 35.1617401973 % )  exp. eff: 0.000272710578471 % reduce max for 2_3__j__j__h0__j__j__QCD(BVI) to 0.39657075534 ( eps = 0.001 -> exp. eff 0.00262817056735 ) reduce max for 2_4__j__j__h0__j__j__j__QCD(RS) to 0.456062791903 ( eps = 0.001 -> exp. eff 5.97967173191e-06 ) ┌──────────────────────────────────────────────────────────────────────────────┐ │ SHERPA generates events with the following structure: │ │ Event generation Weighted │ │ Perturbative Signal_Processes │ │ Perturbative Minimum_Bias: None │ │ Perturbative Hard_Decays │ │ Perturbative Jet_Evolution:CSS │ │ Perturbative Lepton_FS_QED_Corrections:Photons │ │ Perturbative Multiple_Interactions: None │ │ Hadronization Beam_Remnants:Parametrised │ │ Hadronization Hadronization: None │ │ Hadronization Hadron_Decays │ │ Userhook None │ │ Analysis Rivet │ │ Reweighting 6 variations │ └──────────────────────────────────────────────────────────────────────────────┘ Event 1 ( 3s elapsed / 88d 21h 19m 56s left ) -> ETA: Mon Apr 28 07:17 XS = -2.96018047757 pb +- ( -2.96018047757 pb = 100 % ) Event 2 ( 3s elapsed / 44d 10h 39m 56s left ) -> ETA: Fri Mar 14 19:37 XS = 1.80283266593 pb +- ( 4.7630131435 pb = 264 % ) Event 3 ( 3s elapsed / 29d 16h 57m 42s left ) -> ETA: Fri Feb 28 01:55 XS = 1.20201496559 pb +- ( 2.81479661387 pb = 234 % ) Event 4 ( 3s elapsed / 22d 6h 43m 16s left ) -> ETA: Thu Feb 20 15:40 XS = 0.891182464597 pb +- ( 2.01448674168 pb = 226 % ) Event 5 ( 3s elapsed / 17d 20h 53m 16s left ) -> ETA: Sun Feb 16 05:50 XS = 0.733663196943 pb +- ( 1.56834512118 pb = 213 % ) Event 6 ( 3s elapsed / 14d 21h 24m 22s left ) -> ETA: Thu Feb 13 06:22 XS = 0.611398460957 pb +- ( 1.28637200882 pb = 210 % ) Event 7 ( 3s elapsed / 12d 19h 8m 30s left ) -> ETA: Tue Feb 11 04:06 XS = 0.524063818878 pb +- ( 1.09068498158 pb = 208 % ) Event 8 ( 3s elapsed / 11d 4h 44m 56s left ) -> ETA: Sun Feb 09 13:42 XS = 0.407669303105 pb +- ( 0.748258416869 pb = 183 % ) Event 9 ( 3s elapsed / 9d 23h 30m 18s left ) -> ETA: Sat Feb 08 08:28 XS = 0.374337485643 pb +- ( 0.677645458142 pb = 181 % ) Event 10 ( 3s elapsed / 8d 23h 33m 16s left ) -> ETA: Fri Feb 07 08:30 XS = 0.343427217992 pb +- ( 0.619374617737 pb = 180 % ) Event 20 ( 3s elapsed / 4d 13h 9m 56s left ) -> ETA: Sun Feb 02 22:07 XS = 0.992688615837 pb +- ( 0.877823224146 pb = 88 % ) Event 30 ( 3s elapsed / 3d 1h 19m 56s left ) -> ETA: Sat Feb 01 10:17 XS = 2.27967007413 pb +- ( 1.27361767903 pb = 55 % ) Event 40 ( 4s elapsed / 2d 7h 33m 16s left ) -> ETA: Fri Jan 31 16:30 XS = 4.19056637487 pb +- ( 2.50047150035 pb = 59 % ) Event 50 ( 4s elapsed / 1d 20h 46m 35s left ) -> ETA: Fri Jan 31 05:44 XS = 3.54467761436 pb +- ( 2.05122379662 pb = 57 % ) Event 60 ( 4s elapsed / 1d 13h 41m 2s left ) -> ETA: Thu Jan 30 22:38 XS = 4.31140422494 pb +- ( 2.17390342626 pb = 50 % ) Event 70 ( 4s elapsed / 1d 8h 46m 35s left ) -> ETA: Thu Jan 30 17:44 XS = 6.37759275401 pb +- ( 2.67905943894 pb = 42 % ) Event 80 ( 4s elapsed / 1d 4h 57m 25s left ) -> ETA: Thu Jan 30 13:55 XS = 5.76643123092 pb +- ( 2.33278886241 pb = 40 % ) Event 90 ( 4s elapsed / 1d 1h 59m 11s left ) -> ETA: Thu Jan 30 10:56 XS = 17.0266853423 pb +- ( 12.0383963698 pb = 70 % ) Event 100 ( 4s elapsed / 23h 36m 35s left ) -> ETA: Thu Jan 30 08:34 XS = 9.33946620735 pb +- ( 12.6417861727 pb = 135 % ) Event 200 ( 4s elapsed / 12h 48m 15s left ) -> ETA: Wed Jan 29 21:45 XS = 7.04057214925 pb +- ( 6.63220685439 pb = 94 % ) Event 300 ( 4s elapsed / 9h 13m 15s left ) -> ETA: Wed Jan 29 18:10 XS = 4.17172512595 pb +- ( 4.61314914838 pb = 110 % ) Event 400 ( 5s elapsed / 7h 24m 54s left ) -> ETA: Wed Jan 29 16:22 XS = 7.02795461437 pb +- ( 4.18201922661 pb = 59 % ) Event 500 ( 5s elapsed / 6h 21m 54s left ) -> ETA: Wed Jan 29 15:19 XS = 6.98714499133 pb +- ( 3.43989751025 pb = 49 % ) Event 600 ( 6s elapsed / 5h 41m 33s left ) -> ETA: Wed Jan 29 14:39 XS = 7.17356516365 pb +- ( 2.93644604415 pb = 40 % ) Event 700 ( 6s elapsed / 5h 10m 50s left ) -> ETA: Wed Jan 29 14:08 XS = 6.27826626965 pb +- ( 2.52878137111 pb = 40 % ) Event 800 ( 6s elapsed / 4h 49m 28s left ) -> ETA: Wed Jan 29 13:47 XS = 21.7140281916 pb +- ( 15.8687087812 pb = 73 % ) Event 900 ( 7s elapsed / 4h 30m 59s left ) -> ETA: Wed Jan 29 13:28 XS = 20.1901261851 pb +- ( 14.132252784 pb = 69 % ) Event 1000 ( 7s elapsed / 4h 17m 32s left ) -> ETA: Wed Jan 29 13:15 XS = 18.7901567318 pb +- ( 12.6993436257 pb = 67 % ) Event 2000 ( 11s elapsed / 3h 14m 28s left ) -> ETA: Wed Jan 29 12:12 XS = 12.368340581 pb +- ( 6.38040017499 pb = 51 % ) Event 3000 ( 15s elapsed / 2h 53m 4s left ) -> ETA: Wed Jan 29 11:50 XS = 8.80632644944 pb +- ( 4.23574974719 pb = 48 % ) Event 4000 ( 19s elapsed / 2h 42m 20s left ) -> ETA: Wed Jan 29 11:40 XS = 7.91142629826 pb +- ( 3.19384348688 pb = 40 % ) Event 5000 ( 23s elapsed / 2h 35m 48s left ) -> ETA: Wed Jan 29 11:33 XS = 7.81149769044 pb +- ( 2.60406941059 pb = 33 % ) Event 6000 ( 27s elapsed / 2h 31m 25s left ) -> ETA: Wed Jan 29 11:29 XS = 7.35406471501 pb +- ( 2.18645915156 pb = 29 % ) Event 7000 ( 31s elapsed / 2h 30m 45s left ) -> ETA: Wed Jan 29 11:28 XS = 7.89150998868 pb +- ( 1.92851645566 pb = 24 % ) Event 8000 ( 36s elapsed / 2h 29m 24s left ) -> ETA: Wed Jan 29 11:27 XS = 7.95339011088 pb +- ( 1.70492062118 pb = 21 % ) Event 9000 ( 40s elapsed / 2h 28m 39s left ) -> ETA: Wed Jan 29 11:26 XS = 7.60447551389 pb +- ( 1.52884831004 pb = 20 % ) Event 10000 ( 44s elapsed / 2h 27m 43s left ) -> ETA: Wed Jan 29 11:26 XS = 7.31817106188 pb +- ( 1.39000407987 pb = 18 % ) Event 20000 ( 1m 28s elapsed / 2h 26m 34s left ) -> ETA: Wed Jan 29 11:25 XS = 6.87763277415 pb +- ( 0.93649468652 pb = 13 % ) Event 30000 ( 2m 12s elapsed / 2h 25m 21s left ) -> ETA: Wed Jan 29 11:25 XS = 6.37759510672 pb +- ( 0.672129496366 pb = 10 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 40000 ( 2m 56s elapsed / 2h 24m 31s left ) -> ETA: Wed Jan 29 11:25 XS = 6.03445328371 pb +- ( 0.580259242596 pb = 9 % ) Event 50000 ( 3m 40s elapsed / 2h 23m 38s left ) -> ETA: Wed Jan 29 11:24 XS = 6.25654207536 pb +- ( 0.5360668046 pb = 8 % ) Event 60000 ( 4m 24s elapsed / 2h 22m 42s left ) -> ETA: Wed Jan 29 11:24 XS = 5.88274436113 pb +- ( 0.518004591263 pb = 8 % ) Event 70000 ( 5m 8s elapsed / 2h 21m 52s left ) -> ETA: Wed Jan 29 11:24 XS = 5.82761152435 pb +- ( 0.453482621746 pb = 7 % ) Event 80000 ( 5m 52s elapsed / 2h 21m 6s left ) -> ETA: Wed Jan 29 11:24 XS = 5.63487557897 pb +- ( 0.426462794567 pb = 7 % ) Event 90000 ( 6m 37s elapsed / 2h 20m 28s left ) -> ETA: Wed Jan 29 11:24 XS = 5.76792111374 pb +- ( 0.389082140302 pb = 6 % ) Event 100000 ( 7m 21s elapsed / 2h 19m 48s left ) -> ETA: Wed Jan 29 11:24 XS = 5.80811527877 pb +- ( 0.358898679854 pb = 6 % ) Event 200000 ( 14m 43s elapsed / 2h 12m 33s left ) -> ETA: Wed Jan 29 11:24 XS = 5.70310941968 pb +- ( 0.260249095674 pb = 4 % ) Event 300000 ( 22m 8s elapsed / 2h 5m 27s left ) -> ETA: Wed Jan 29 11:25 XS = 5.71693453569 pb +- ( 0.217373818337 pb = 3 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 400000 ( 29m 30s elapsed / 1h 58m 3s left ) -> ETA: Wed Jan 29 11:25  Memory usage increased by 18 MB, now 322 MB.  This might indicate a memory leak! Please monitor this process closely. XS = 6.05069664128 pb +- ( 0.212507865777 pb = 3 % ) Event 500000 ( 36m 49s elapsed / 1h 50m 28s left ) -> ETA: Wed Jan 29 11:24 XS = 6.02769431752 pb +- ( 0.182552387382 pb = 3 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 600000 ( 44m 18s elapsed / 1h 43m 24s left ) -> ETA: Wed Jan 29 11:25 XS = 6.04165799127 pb +- ( 0.165443557769 pb = 2 % ) Event 700000 ( 51m 48s elapsed / 1h 36m 12s left ) -> ETA: Wed Jan 29 11:25 XS = 6.08893732293 pb +- ( 0.156066096839 pb = 2 % ) Channel_Elements::TChannelWeight(): Weight is -nan. Channel_Elements::TChannelWeight(): Weight is -nan. Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 800000 ( 59m 24s elapsed / 1h 29m 6s left ) -> ETA: Wed Jan 29 11:26 XS = 6.06013384469 pb +- ( 0.143049923578 pb = 2 % ) Event 900000 ( 1h 7m 4s elapsed / 1h 21m 58s left ) -> ETA: Wed Jan 29 11:26 XS = 5.93706456888 pb +- ( 0.13744067526 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1000000 ( 1h 14m 43s elapsed / 1h 14m 43s left ) -> ETA: Wed Jan 29 11:27 XS = 5.9674657863 pb +- ( 0.127233658144 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1100000 ( 1h 22m 26s elapsed / 1h 7m 27s left ) -> ETA: Wed Jan 29 11:27 XS = 5.95200960064 pb +- ( 0.119049763247 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1200000 ( 1h 30m 14s elapsed / 1h 9s left ) -> ETA: Wed Jan 29 11:28 XS = 5.95834134571 pb +- ( 0.112728029144 pb = 1 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1300000 ( 1h 37m 48s elapsed / 52m 39s left ) -> ETA: Wed Jan 29 11:28 XS = 5.96086453234 pb +- ( 0.10815971659 pb = 1 % ) Event 1400000 ( 1h 45m 22s elapsed / 45m 9s left ) -> ETA: Wed Jan 29 11:28 XS = 5.97839475161 pb +- ( 0.103220237067 pb = 1 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event 1500000 ( 1h 52m 57s elapsed / 37m 39s left ) -> ETA: Wed Jan 29 11:28 XS = 6.10693102514 pb +- ( 0.148411951273 pb = 2 % ) Event 1600000 ( 2h 43s elapsed / 30m 10s left ) -> ETA: Wed Jan 29 11:28 XS = 6.12649050642 pb +- ( 0.142065742911 pb = 2 % ) Event 1700000 ( 2h 8m 24s elapsed / 22m 39s left ) -> ETA: Wed Jan 29 11:28 XS = 6.17181555295 pb +- ( 0.142010381969 pb = 2 % ) Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.") Event_Handler::GenerateStandardPerturbativeEvent:("Invalid weight w=nan. Rejecting event.")