MadGraph5_aMC@NLO

Answered questions for MadGraph5_aMC@NLO

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Summary Created Submitter Assignee Status
Answered 823387 cross section without decay is less then cross section with decay 2026-01-09 10:23:51 UTC muhammad Tayyab Javaid — Answered
Solved 823385 When using FxFx merging, the number of events in the final output (e.g. HepMC) is smaller than the number of events requested in the run_card 2026-01-09 08:23:10 UTC jiuzhao — Solved
Solved 823381 Functionality of Pythia8 in MadGraph for leptonic final states 2026-01-09 01:18:37 UTC Nicko Angelo Rabang — Solved
Solved 823352 Meaning of dsqrt_shat from EVA implementation in MadGraph 2025-12-30 22:49:53 UTC Nicko Angelo Rabang — Solved
Solved 823342 Can we extract the analytical form of the cross section from MadGraph? 2025-12-29 10:47:40 UTC Nicko Angelo Rabang — Solved
Solved 823335 Issue with usage of EVA in MadGraph 2025-12-26 06:48:54 UTC Surya Sundar Raman — Solved
Answered 823332 Role of pTj cuts and xqcut in matching 2025-12-24 23:34:13 UTC Sebastian Urrutia-Quiroga — Answered
Solved 823331 EVA implementation in MadGraph 2025-12-24 22:55:57 UTC Nicko Angelo Rabang — Solved
Answered 823320 How to decay p p > t t~ t j in different top decay channels 2025-12-21 10:31:35 UTC Mohammad — Answered
Answered 823317 AttributeError : 'NoneType' object has no attribute 'groups' 2025-12-20 23:54:33 UTC Saumyen Kundu — Answered
Answered 823313 Question on EVA for High-Energy Protons in MadGraph 2025-12-20 09:48:58 UTC zhangjiatong — Answered
Answered 823308 Cannot generate muon–proton fixed target events in MadGraph (Survey returns zero cross section) 2025-12-19 03:30:44 UTC jiuzhao — Answered
Solved 823307 Discrepancy between ME and reconstructed events 2025-12-19 01:31:58 UTC Sebastian Urrutia-Quiroga — Solved
Solved 823288 dilog function multi-defined, error in linking 2025-12-16 09:07:26 UTC HaolinLi — Solved
Solved 823283 Gridpack crashes when using LHAPDF 2025-12-15 09:58:54 UTC Cedric Verstege — Solved
Solved 823275 Why production and decay cross-section didin't agree 2025-12-13 12:55:11 UTC LiYuan Du — Solved
Answered 823253 long-lived particles 2025-12-09 13:36:46 UTC LiYuan Du — Answered
Solved 823233 Madgraph v3.5 and later crash when running SMEFTsim model 2025-12-05 23:14:59 UTC Yang Ma — Solved
Solved 823230 Madgraph ISR Plugin compatibility issues 2025-12-04 17:44:07 UTC Akshat Khanna marco zaro Solved
Solved 823222 too much decay at MG level for EFT model 2025-12-03 12:54:34 UTC shahrzad — Solved
Solved 823209 Unexpected maximum in pp → xx cross section around 2.3 GeV when scanning dark photon mass in MadGraph. 2025-12-01 08:50:08 UTC Xinyue Yin — Solved
Solved 823201 ValueError : could not convert string to float 2025-11-29 12:55:04 UTC sumit kumar — Solved
Solved 823197 tt~ matching. 2025-11-28 11:31:17 UTC Taegyu Lee — Solved
Answered 823166 Apply invariant-mass cuts only on the decay h → b b~ (but not on the b b~ from production)? 2025-11-22 04:16:40 UTC Khoa Ho — Answered
Answered 823158 reweighting are not being read in the final lhe file 2025-11-21 03:05:23 UTC John Aremu — Answered
Solved 823150 non-UPC dilepton production in p-Pb cannot use asymmetric lhapdf 2025-11-20 13:42:19 UTC Gustavo Silveira — Solved
Solved 823146 Failing to combine multi run 2025-11-20 02:59:00 UTC Mario Flores Hernandez — Solved
Solved 822894 Moving a gridpack between releases 2025-11-19 10:13:34 UTC Zachary Marshall — Solved
Answered 822882 Problem with calculating mono-photon final state calculation in QED one loop 2025-11-17 04:22:42 UTC Sagar Modak — Answered
Answered 822871 Pythia8 not working in Cluster 2025-11-16 12:00:17 UTC Taegyu Lee — Answered
Solved 822864 How to give momentum to intitial particle in 1 > 2/3 processes. 2025-11-14 11:30:34 UTC Hassan Raza — Solved
Answered 822863 Differential EW NLO k factors 2025-11-14 09:49:13 UTC Cedric Verstege Rikkert Frederix Answered
Answered 822856 fatjet production 2025-11-13 07:23:36 UTC zilong Ding — Answered
Solved 822851 cut_decays 2025-11-12 11:58:31 UTC Frank — Solved
Solved 822845 problem for basic cut 2025-11-11 12:04:18 UTC Weifan Zhu — Solved
Solved 822834 Positive z-axis in asymmetric collision 2025-11-09 01:17:56 UTC Sebastian Urrutia-Quiroga — Solved
Answered 822826 Ubuntu 24 root and madgraph compatibility 2025-11-07 16:14:03 UTC Elizabeth holland — Answered
Solved 822823 generate p p > h, (h > w+ w-, (w+ > l+ vl), (w- > j j)) 2025-11-07 07:01:49 UTC Sheryl Xie — Solved
Answered 822810 kin_functions.f 2025-11-04 18:47:18 UTC Fatima — Answered
Solved 822803 Error computation for FO NLO EW 2025-11-03 18:13:48 UTC Alberto Navarro — Solved
Solved 822800 HTML file 2025-11-03 13:13:44 UTC Fatima — Solved
Answered 822787 The MG5aMC_PY8_interface tool cannot be found, 2025-10-30 20:16:05 UTC miss ghasemi — Answered
Answered 822780 Proton fixed target 2025-10-29 21:30:33 UTC Insung Hwang — Answered
Answered 822776 Process declaration for subprocesses with light CP-odd Higgs in 2HDMS 2025-10-29 14:55:23 UTC moonlightpenguin — Answered
Answered 822768 including hadronic decay of tau lepton with taudecay_UFO in my own model written in SARAH-SPheno 2025-10-28 14:53:39 UTC Jayita — Answered
Answered 822767 MadSpin for processes with EW corrections 2025-10-28 13:28:21 UTC Laurids Jeppe Rikkert Frederix Answered
Solved 822761 Tau decay width calculation within the SM upto NLO 2025-10-27 18:03:48 UTC Sahabub Jahedi — Solved
Solved 822756 Error while Calculating Scattering Cross Sections in a custom model. 2025-10-27 10:41:58 UTC Hassan Raza — Solved
Answered 822745 Compressed HEPMC files and pipes 2025-10-24 14:10:06 UTC Benjamin Guiot — Answered
Solved 822738 NLO corrections to off-shell ttbar 2025-10-23 16:36:41 UTC Laurids Jeppe Rikkert Frederix Solved
Solved 822725 Crash when setting a custom scale 2025-10-21 07:57:07 UTC Manu — Solved
Answered 822709 Efficient Methods to Compute Branching Ratios with MadGraph5 2025-10-19 07:31:54 UTC A.M.M Elsayed — Answered
Answered 822703 Bug for loop calculation in mac os with v3.6.5 2025-10-18 19:04:59 UTC Yang Ma — Answered
Answered 822700 Issue Encountered While Using SPheno Generated NMSSM SLHA File as Parameter Card 2025-10-18 11:05:48 UTC Sahil Dhiman — Answered
Answered 822687 Compilation error generating VBS WW polarized events 2025-10-16 16:46:21 UTC Tomas Kello — Answered
Answered 822684 Events 2025-10-16 13:57:27 UTC Fatima — Answered
Answered 822665 Jet Algorithm Placement in inclusive 3-jet 2025-10-13 01:57:04 UTC sunyichen — Answered
Solved 822660 basic cut 2025-10-11 13:32:28 UTC Weifan Zhu — Solved
Solved 822650 'One event with large weight have been found in channel G1', the process is halted after a while 2025-10-09 13:35:39 UTC mustafa — Solved
Solved 822640 How to use isronlyll pdf for muon beams? 2025-10-08 12:15:09 UTC Nicko Angelo Rabang — Solved
Answered 822620 Issues with max cut on invariant mass of a pair of particle in run card 2025-10-03 12:57:17 UTC Atri Dey — Answered
Solved 822619 problem when using the basic cut 2025-10-03 12:27:23 UTC Weifan Zhu — Solved
Solved 822606 Question about zerowidth_tchannel for VBS WWH OS process 2025-10-01 15:07:55 UTC Kelci Mohrman — Solved
Solved 822600 Failed NLO generation with "too many grids to keep track off". 2025-09-30 10:40:02 UTC Alejo Nahuel Rossia marco zaro Solved
Solved 822596 Clarification on Reported Errors in Cross Section at NLO 2025-09-29 20:05:59 UTC Ketan Jadav Rikkert Frederix Solved
Solved 822588 Question on fNLO Drell-Yan Simulation 2025-09-29 07:29:22 UTC sunyichen — Solved
Answered 822579 Failure to reach target number of events with impossible BW configuration - polarized opposite sign WW to lvjj 2025-09-25 23:46:13 UTC Hayden Hollenbeck — Answered
Answered 822576 MG5_PY8_INTERFACE - Compilation 2025-09-25 13:22:00 UTC Mustapha — Answered
Solved 822574 CRITICAL: Branching ratio larger than one for 25 2025-09-25 08:00:55 UTC Abdelkader Cheddad — Solved
Solved 822570 Subject: Issue with MadSpin on Loop-Induced pp → hhh Process 2025-09-25 05:18:24 UTC Abdelkader Cheddad — Solved
Solved 822565 problem on BSM model with diff width 2025-09-24 12:25:45 UTC Weifan Zhu — Solved
Solved 822563 At the EP collider with Pythia8 is incorrect? 2025-09-24 10:08:46 UTC Cheng Xue-Jia — Solved
Solved 822557 Madspin stuck in decay 2025-09-22 16:21:39 UTC Angela Burger — Solved
Solved 822544 Min/Max distance between jet and bottom quark 2025-09-19 17:48:54 UTC Andrew Larkoski — Solved
Solved 822535 Error in Weizsäcker-Williams implementation 2025-09-18 01:52:57 UTC Sebastian Urrutia-Quiroga — Solved
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