====== ENERGY FRONTIER SIMULATION ======

The EF MC Task Force developed a plan for production of large background MC samples necessary to support the wide range of studies foreseen for Snowmass.  This plan is now being carried out by the EF MC Production Team, using resources provided by the OSG.

===== Snowmass Connect =====
The OSG has kindly provided an interactive login node and condor resources for Snowmass activities.  This service is referred to as "Snowmss Connect"  and can be used for any Snowmass-related activities; generation of MC, analysis, etc.  Information to obtain an account, as well as user documentation, is available here: https://maniaclab.uchicago.edu/snowmass-connect-docs/

===== Background MC Request  =====

The success of the Snowmass Energy Frontier effort depends crucially on the analysis of a wide variety of MC samples for various future colliders/detectors.  Collaborations for future collider proposals have produced many such samples, using simulation frameworks of varying degrees of sophistication. However, production of additional samples may be necessary to conduct proposed studies for Snowmass 2021.

Similar to Snowmass 2013, a coherent set of SM background samples will be produced proactively for proposed proton-proton machines with Delphes.  If additional samples/statistics are required, they can be requested below.  For Snowmass 2021, we also plan to produce background MC samples for lepton-lepton and lepton-hadron machines.  These samples will be produced in an on-demand basis, and must be requested below.  All samples will be produced on a best-effort basis, and volunteers to help with the effort are very welcome.  More information on MC production plans can be found here: https://indico.fnal.gov/event/44870/contributions/198448/attachments/136004/168905/Stupak_100720_SnowmassEFMCTF.pdf

Before making a request, please review the following google doc, which summarizes the availability of MC samples for various proposed machines: https://docs.google.com/spreadsheets/d/19KWScsrEgmHRBtqq3tKxHiREEbT0e_lC3DIPcTdEixc/edit?usp=sharing

Requests for production of SM background samples can be made here:
https://docs.google.com/forms/d/e/1FAIpQLScFNHgbXMoqtp1TGJO1KjvPdiA22ZvW-NuhTD1bBr9ZpRG0Dw/viewform?usp=sf_link

===== Monte Carlo Production Team =====

^Name ^Institution ^email ^
|John Stupak (chair)| University of Oklahoma |john.stupak[at]cern.ch|
|Chris Hayes| University of Michigan|hayeschr[at]umich.edu|
| Karol Krizka | University of Chicago | kkrizka[at]gmail.com |
|Federica Legger| INFN Turin |federica.legger[at]to.infn.it|
|Andrew Melo|Vanderbilt University| andrew.m.melo[at]vanderbilt.edu|
|Pascal Paschos| University of Chicago | paschos[at]uchicago.edu|
|Horst Severini| University of Oklahoma|severini[at]ou.edu|
|Giordon Stark| University of California Santa Cruz | gstark[at]cern.ch|
| Thiago Tomei | Sao Paulo State University | thiago.tomei[at]unesp.br |
|Patricia Rebello Teles|Rio de Janeiro State University|patricia.rebello.teles[at]cern.ch|
|Chris Walker| University of Oklahoma|walker[at]nhn.ou.edu|
|David Yu|Brown University | david_yu[at]brown.edu|


===== Monte Carlo Task Force =====

Charge, etc.: https://docs.google.com/document/d/1MdKP37RQtGUBjzU4UjNLkDnq0lvcNduVad8jTqBEL1w/edit

^Name ^Institution ^email ^
|John Stupak (chair)| University of Oklahoma |john.stupak[at]cern.ch|
|Robert Gardner|University of Chicago | rwg[at]uchicago.edu|
|Simone Pagan Griso|LBNL | spagangriso[at]lbl.gov|
| Stefan Hoeche| FNAL| shoeche[at]fnal.gov|
|Fabio Maltoni |CP3, Catholic University of Louvain | maltoni.fabio[at]gmail.com|
|Meenakshi Narain|Brown University | meenakshi.narain[at]cern.ch| 
|Isabel Ojalvo|Princeton University | isabel.rose.ojalvo[at]cern.ch|
|Laura Reina|Florida State University | reina[at]hep.fsu.edu|
|Michael Schmitt|Northwestern University | m-schmitt[at]northwestern.edu|
|Alessandro Tricoli| Brookhaven National Laboratory | atricoli[at]bnl.gov |

===== Summary of simulation frameworks and pre-existing MC samples =====

We have reached out to the various future collider collaborations to collect information regarding MC simulation frameworks and existing MC samples.  The collected information is available [[https://docs.google.com/spreadsheets/d/19KWScsrEgmHRBtqq3tKxHiREEbT0e_lC3DIPcTdEixc/edit?usp=sharing|here]].

===== Summary of background MC samples produced for Snowmass 2021 =====

**The samples described below do not have include matrix element/parton shower matching and marging (nor have they been thoroughly validated), and therefore should not be used for a physics analysis.  A followup production was planned, but did not converge in time for the whitepaper submission deadline.**

Location: Snowmass Connect (login.snowmass21.io) - /collab/project/snowmass21/data/smmc/v0.1/r1/

This data can also be download via the web: https://stash.osgconnect.net/collab/project/snowmass21/data/smmc/

Detector Card: [[https://github.com/delphes/delphes/blob/master/cards/FCC/FCChh.tcl|FCChh.tcl]]

{{:montecarlo:samples.jpg?400|}}

^Process ^Cross Section [mb]^
|100TeV_B|1.532e-03|
|100TeV_BB|7.028e-06|
|100TeV_BBB|8.169e-08|
|100TeV_tt|1.034e-04|
|100TeV_ttB|4.704e-07|
|100TeV_t|6.546e-06|
|100TeV_tB|9.712e-06|
|100TeV_LLB|2.631e-07|

===== Benchmark Collider Delphes Cards  =====

All benchmark collider cards for Snowmass 2021 are in the official Delphes github [[https://github.com/delphes/delphes/tree/master/cards|repository]].

^ Collider ^Card ^ Documentation ^
| CEPC/FCC-ee | [[https://github.com/delphes/delphes/blob/master/cards/delphes_card_CircularEE.tcl|delphes_card_CircularEE.tcl]] | https://arxiv.org/abs/1712.09517 |
| ILC| [[https://github.com/delphes/delphes/blob/master/cards/delphes_card_ILCgen.tcl|delphes_card_ILCgen.tcl]] | https://github.com/iLCSoft/ILCDelphes |
| CLIC | [[https://github.com/delphes/delphes/tree/master/cards/delphes_card_CLICdet_Stage1.tcl|delphes_card_CLICdet_Stage1.tcl]] [[https://github.com/delphes/delphes/tree/master/cards/delphes_card_CLICdet_Stage2.tcl|delphes_card_CLICdet_Stage2.tcl]] [[https://github.com/delphes/delphes/tree/master/cards/delphes_card_CLICdet_Stage3.tcl|delphes_card_CLICdet_Stage3.tcl]] | https://arxiv.org/abs/1909.12728 |
| HL-LHC/FCC-hh | [[https://github.com/delphes/delphes/blob/master/cards/FCC/FCChh.tcl|FCChh.tcl]] | [[https://link.springer.com/content/pdf/10.1140/epjst/e2019-900087-0.pdf|CDR]] , [[https://cds.cern.ch/record/2717785|CERN-FCC-PHYS-2020-0004]], [[https://arxiv.org/abs/1912.09962|1912.09962]], [[https://cds.cern.ch/record/2717698|CERN-FCC-PHYS-2020-0003]] |
| LHeC  | [[https://github.com/delphes/delphes/blob/master/cards/delphes_card_LHeC.tcl|delphes_card_LHeC.tcl]]  | WIP |
| FCC-eh | [[https://github.com/delphes/delphes/blob/master/cards/delphes_card_FCCeh.tcl|delphes_card_FCCeh.tcl]] | WIP |
| Muon Collider | [[https://github.com/delphes/delphes/blob/master/cards/delphes_card_MuonColliderDet.tcl|delphes_card_MuonColliderDet.tcl]] | WIP |


===== MC/Simulation Framework Tutorial Series  =====

We are holding a series of tutorials for a variety of proposed future colliders.  The goal of these tutorials is to prepare outside collaborators to conduct physics studies for these machines.

^Machine ^ Date ^ Link ^
| ILC | Aug 28 | https://indico.fnal.gov/event/45031/ |
| CEPC | Sept 8 | https://indico.fnal.gov/event/45183/ |
| FCC-ee/hh | Sept 22-23 | https://indico.cern.ch/event/945608/ |
| Whizard for e+e- | Sept 28| https://indico.fnal.gov/event/45413/ |
| FCC-ee/hh | Sept 29| https://indico.cern.ch/event/949950/ | 
| Muon Collider | Sep 30 | https://indico.fnal.gov/event/45187/ |
| LHeC/FCC-eh | Oct 13 | https://indico.fnal.gov/event/45185/ |
| ILC Analysis Walkthrough | Oct 14 | https://indico.fnal.gov/event/45721/ |