it says this aMCfast INFO: Setting up hook functions ... ==== LHAPDF6 USING DEFAULT-TYPE LHAGLUE INTERFACE ==== LHAPDF 6.2.1 loading /home/hep-ph/lhapdf/share/LHAPDF/NNPDF23_nlo_as_0118/NNPDF23_nlo_as_0118_0000.dat NNPDF23_nlo_as_0118 PDF set, member #0, version 6; LHAPDF ID = 229800 =============================================================== INFO: MadFKS read these parameters from FKS_params.dat =============================================================== > IRPoleCheckThreshold = 1.0000000000000001E-005 > PrecisionVirtualAtRunTime = 1.0000000000000000E-003 > NHelForMCoverHels = 4 > VirtualFraction = 1.0000000000000000 > MinVirtualFraction = 5.0000000000000001E-003 =============================================================== A PDF is used, so alpha_s(MZ) is going to be modified Old value of alpha_s from param_card: 0.11799999999999999 New value of alpha_s from PDF lhapdf : 0.11800232290472297 ***************************************************** * MadGraph/MadEvent * * -------------------------------- * * http://madgraph.hep.uiuc.edu * * http://madgraph.phys.ucl.ac.be * * http://madgraph.roma2.infn.it * * -------------------------------- * * * * PARAMETER AND COUPLING VALUES * * * ***************************************************** External Params --------------------------------- MU_R = 91.188000000000002 mdl_MB = 4.7000000000000002 mdl_MT = 173.00000000000000 mdl_MTA = 1.7769999999999999 mdl_MZ = 91.188000000000002 mdl_MH = 125.00000000000000 aEWM1 = 132.50700000000001 mdl_Gf = 1.1663900000000000E-005 aS = 0.11799999999999999 mdl_ymb = 4.7000000000000002 mdl_ymt = 173.00000000000000 mdl_ymtau = 1.7769999999999999 mdl_WT = 1.4915000000000000 mdl_WZ = 2.4414039999999999 mdl_WW = 2.0476000000000001 mdl_WH = 6.3823389999999999E-003 Internal Params --------------------------------- mdl_conjg__CKM3x3 = 1.0000000000000000 mdl_CKM22 = 1.0000000000000000 mdl_lhv = 1.0000000000000000 mdl_CKM3x3 = 1.0000000000000000 mdl_conjg__CKM22 = 1.0000000000000000 mdl_conjg__CKM33 = 1.0000000000000000 mdl_Ncol = 3.0000000000000000 mdl_CA = 3.0000000000000000 mdl_TF = 0.50000000000000000 mdl_CF = 1.3333333333333333 mdl_complexi = ( 0.0000000000000000 , 1.0000000000000000 ) mdl_MZ__exp__2 = 8315.2513440000002 mdl_MZ__exp__4 = 69143404.913893804 mdl_sqrt__2 = 1.4142135623730951 mdl_MH__exp__2 = 15625.000000000000 mdl_Ncol__exp__2 = 9.0000000000000000 mdl_MB__exp__2 = 22.090000000000003 mdl_MT__exp__2 = 29929.000000000000 mdl_aEW = 7.5467711139788835E-003 mdl_MW = 80.419002445756163 mdl_sqrt__aEW = 8.6872153846781555E-002 mdl_ee = 0.30795376724436879 mdl_MW__exp__2 = 6467.2159543705357 mdl_sw2 = 0.22224648578577766 mdl_cw = 0.88190334743339216 mdl_sqrt__sw2 = 0.47143025548407230 mdl_sw = 0.47143025548407230 mdl_g1 = 0.34919219678733299 mdl_gw = 0.65323293034757990 mdl_v = 246.21845810181637 mdl_v__exp__2 = 60623.529110035903 mdl_lam = 0.12886910601690263 mdl_yb = 2.6995554250465490E-002 mdl_yt = 0.99366614581500623 mdl_ytau = 1.0206617000654717E-002 mdl_muH = 88.388347648318430 mdl_AxialZUp = -0.18517701861793787 mdl_AxialZDown = 0.18517701861793787 mdl_VectorZUp = 7.5430507588273299E-002 mdl_VectorZDown = -0.13030376310310560 mdl_VectorAUp = 0.20530251149624587 mdl_VectorADown = -0.10265125574812294 mdl_VectorWmDxU = 0.23095271737156670 mdl_AxialWmDxU = -0.23095271737156670 mdl_VectorWpUxD = 0.23095271737156670 mdl_AxialWpUxD = -0.23095271737156670 mdl_I1x33 = ( 2.6995554250465490E-002, 0.0000000000000000 ) mdl_I2x33 = ( 0.99366614581500623 , 0.0000000000000000 ) mdl_I3x33 = ( 0.99366614581500623 , 0.0000000000000000 ) mdl_I4x33 = ( 2.6995554250465490E-002, 0.0000000000000000 ) mdl_Vector_tbGp = (-0.96667059156454072 , 0.0000000000000000 ) mdl_Axial_tbGp = ( -1.0206617000654716 , -0.0000000000000000 ) mdl_Vector_tbGm = ( 0.96667059156454072 , 0.0000000000000000 ) mdl_Axial_tbGm = ( -1.0206617000654716 , -0.0000000000000000 ) mdl_gw__exp__2 = 0.42671326129048615 mdl_cw__exp__2 = 0.77775351421422245 mdl_ee__exp__2 = 9.4835522759998875E-002 mdl_sw__exp__2 = 0.22224648578577769 mdl_yb__exp__2 = 7.2875994928982540E-004 mdl_yt__exp__2 = 0.98737240933884918 Internal Params evaluated point by point ---------------------------------------- mdl_sqrt__aS = 0.34351128074635334 mdl_G__exp__4 = 2.1987899468922913 mdl_G__exp__2 = 1.4828317324943823 mdl_R2MixedFactor_FIN_ = -2.5040377713124864E-002 mdl_GWcft_UV_b_1EPS_ = -3.1300472141406080E-003 mdl_GWcft_UV_t_1EPS_ = -3.1300472141406080E-003 mdl_bWcft_UV_1EPS_ = -1.8780283284843650E-002 mdl_tWcft_UV_1EPS_ = -1.8780283284843650E-002 mdl_G__exp__3 = 1.8056676068262196 mdl_MU_R__exp__2 = 8315.2513440000002 mdl_GWcft_UV_b_FIN_ = -1.8563438626678915E-002 mdl_GWcft_UV_t_FIN_ = 4.0087659331150384E-003 mdl_bWcft_UV_FIN_ = -0.13642100947319838 mdl_tWcft_UV_FIN_ = -9.8778211443463623E-004 Couplings of loop_sm --------------------------------- R2_sxcW = -0.00000E+00 -0.11566E-01 GC_5 = 0.00000E+00 0.12177E+01 GC_47 = 0.00000E+00 0.46191E+00 Collider parameters: -------------------- Running at P P machine @ 13000.000000000000 GeV PDF set = lhapdf alpha_s(Mz)= 0.1180 running at 2 loops. alpha_s(Mz)= 0.1180 running at 2 loops. Renormalization scale set on event-by-event basis Factorization scale set on event-by-event basis Diagram information for clustering has been set-up for nFKSprocess 1 Diagram information for clustering has been set-up for nFKSprocess 2 Diagram information for clustering has been set-up for nFKSprocess 3 Diagram information for clustering has been set-up for nFKSprocess 4 getting user params Number of phase-space points per iteration: 5000 Maximum number of iterations is: 2 Desired accuracy is: 1.1303741559499999E-002 Using adaptive grids: 2 Using Multi-channel integration Do MC over helicities for the virtuals Number of channels to integrate together: 1 Running Configuration Number(s): 1 Splitting channel: 0 Weight multiplier: 1.0000000000000000 doing the all of this channel Normal integration (Sfunction != 1) RESTART: Use old grids, but refil plots about to integrate 4 5000 2 Initializing aMCfast ... ================================ process combination map (specified per FKS dir): 1 map 1 2 1 inv. map 1 2 2 map 1 2 2 inv. map 1 2 3 map 1 2 3 inv. map 1 2 4 map 1 2 4 inv. map 1 2 ================================ ... done. Update iterations and points to 2 5000 imode is -1 channel 1 : 1 F 0 2496 0.6106E+05 0.0000E+00 0.5000E-02 RINIT -- Initializing RBOOK fortran interface to ROOT histogramming -- (C) 2006 W. Verkerke RINIT -- Opening ROOT file 'MADatNLO.root' for histogram storage aMCfast INFO: Booking grid from scratch with name grid_obs_0_in.root ... aMCfast INFO: Report of the grid parameters: - Q2 grid: * interpolation range: [ 100 : 1e+06 ] GeV^2 * number of nodes: 30 * interpolation order: 3 - x grid: * interpolation range: [ 2e-07 : 1 ] * number of nodes: 50 * interpolation order: 3 lumi_pdf::lumi_pdf() amcatnlo_obs_0_20181112094405.config combinations 6 aMCfast ERROR: mismatch in the lower limit of the histogram: It is 0, it should be -6 Thanks for using LHAPDF 6.2.1. Please make sure to cite the paper: Eur.Phys.J. C75 (2015) 3, 132 (http://arxiv.org/abs/1412.7420) ------- iteration 1 Update # PS points (even): 5000 --> 4802 Using random seed offsets: 1 , 1 , 0 with seed 34 Ranmar initialization seeds 13168 9409 Total number of FKS directories is 4 For the Born we use nFKSprocesses # 2 0 tau_min 1 1 : 0.80419E+02 -- 0.80419E+02 tau_min 2 1 : 0.80419E+02 -- 0.80419E+02 tau_min 3 1 : 0.80419E+02 -- 0.80419E+02 tau_min 4 1 : 0.80419E+02 -- 0.80419E+02 bpower is 0.0000000000000000 Time in seconds: 0 best, Meziani