The 18th Workshop of the LHC Higgs Working Group

Name: The 18th Workshop of the LHC Higgs Working Group
Start: 2021-12-01T09:00:00+01:00
End: 2021-12-03T19:00:00+01:00
Location: Virtual

1 Dec 2021, 09:00 → 3 Dec 2021, 19:00 Europe/Zurich

Virtual

Description

The aim of the LHC Higgs Working Group (LHCHWG) is to collect and produce theoretical predictions relevant for Higgs physics in the Standard Model and beyond. Summaries of these activities have been made available in four CERN Reports: "Inclusive Observables" (CERN-2011-002), "Differential Distributions" (CERN-2012-002), "Higgs Properties" (CERN-2013-004) and "Deciphering the nature of the Higgs Sector" (CERN-2017-002).

The meeting will be held virtually, however a physical room with a limited number of places will be available at CERN for people resident at CERN. Due to evolving and uncertain Covid-19 situation, we do not recommend travel to CERN for the purpose of this workshop. No social gatherings such as coffee breaks or workshop dinners are planned.

Zoom connection details:

Will be sent to registered participants ahead of the start of the workshop.

LHC Higgs WG Steering Committee

lhc-higgs-steering-committee@cern.ch

Participants

Abdollah Mohammadi
Adelina D'Onofrio
Adinda De Wit
Adrian Rubio Jimenez
Afiq Aizuddin Anuar
Alberto Tonero
Aleksey Soloshenko
Alessandra Betti
Alessandro Calandri
Alexander Karlberg
Ali El Moussaouy
Alicia Calderon Tazon
Aliya Nigamova
Aliya Nigamova
Amanda Cooper-Sarkar
Ana Rosario Cueto Gomez
Andrea Massironi
Andrei Gritsan
Antonio De Maria
Arnaud Ferrari
Artur Il Darovic Gottmann
Ayan Paul
Boping Chen
Brian Shuve
Carlo Enrico Pandini
Caterina Vernieri
Chiara Mariotti
Chris Hays
Christophe Grojean
Christopher Deutsch
Christopher Robyn Hayes
Ciaran Williams
Daniel Winterbottom
Daniela Marcella Rebuzzi
David Munoz Perez
Devdatta Majumder
Dominik Duda
Doreen Wackeroth
Dorival Goncalves
Duarte Azevedo
Eleni Vryonidou
Eleonora Rossi
Elina Fuchs
Elisabeth Schopf
Elisabetta Gallo
Elisabetta Pianori
Elizabeth Brost
Elizaveta Shabalina
Emanuele Angelo Bagnaschi
Ennio Salvioni
Fabio Cerutti
Fabio Lucio Lucio Alves
Fabio Monti
Federica Devoto
Filippo Errico
Florian Herren
Francesco Armando Di Bello
Frank Tackmann
Frederic Alexandre Dreyer
Gadi Ninio
Gaetano Barone
Gamze Sokmen
Gauthier Durieux
Gavin Salam
Georg Weiglein
Georgia Karapostoli
Georgios Billis
Giacinto Piacquadio
Giacomo Boldrini
Giancarlo Ferrera
Gilberto Tetlalmatzi-Xolocotzi
Giovanni Marchiori
Giovanni Petrucciani
Giuliano Panico
Giulio Gambuti
Giuseppe Bevilacqua
Giuseppe Degrassi
Go Mishima
Gourab Saha
Gudrun Heinrich
Guglielmo Frattari
Guillelmo Gomez Ceballos Retuerto
Haichen Wang
Haider Abidi
Hamza Abouabid
Hannah Arnold
Heidi Rzehak
Hongtao Yang
Hualin Mei
Huanguo Li
Ilan Bessudo
Ilaria Luise
James Frost
Jamie McGowan
Jan Steggemann
Jana Schaarschmidt
Jannis Lang
Jason Oliver
Jason Robert Veatch
Javier Cuevas
Javier Mazzitelli
Jean-Francois Grivaz
Jeffrey Davis
Joey Huston
Johannes Michel
Johannes Schlenk
John Gunion
Jonathan Hermann
Jonathon Mark Langford
Jorge de Blas
Josh McFayden
Joshua Davies
Joshuha Thomas-Wilsker
Juan José Sanz-Cillero
Juan Rojo
Judith Katzy
Juhi Dutta
Julie Malcles
Junquan Tao
Junquan Tao
Kajari Mazumdar
Karsten Koeneke
Katharine Leney
Keping Xie
Kerstin Tackmann
Kiran Parashar
Konstantin Androsov
Lailin Xu
Laura Reina
Leandro Cieri
Lei Zhang
Liantao Wang
Lidija Zivkovic
Lina Alasfar
Liron Barak
Liza Mijovic
Lorenzo Sestini
Louis Portales
Loukas Gouskos
Luca Cadamuro
Luca Fiorini
Luca Mastrolorenzo
Ludovic Scyboz
Malak Ait Tamlihat
Malgorzata Worek
Manfred Kraus
Marco Delmastro
Marco Niggetiedt
Marco Zaro
Margarete Mühlleitner
Maria Moreno Llacer
Mariarosaria D'Alfonso
Mark Neubauer
Markus Ebert
Marta Felcini
Massimiliano Galli
Mathieu Pellen
Matteo Bonanomi
Matthew Klein
Matthew Reader
Matthias Kerner
Matthias König
Matthias Schroeder
Matthias Steinhauser
Mauro Donega
Maximilian Burkart
Megi Hysenlli
Meng-Ju Tsai
Mengshi Yan
Michael Duehrssen-Debling
Michael Spira
Michelangelo Mangano
Mingshui Chen
Mohamed Krab
Nadav Michael Tamir
Nan Lu
Nausheen Shah
Nicola De Filippis
Nicola Orlando
Nicolas Berger
Nikolas Kauer
Osama Karkout
Pablo Martinez Agullo
Pavel Nadolsky
Peter Johannes Falke
Peter Kramer
Pietro Slavich
Piotr Bargiela
Predrag Milenovic
Qianying Guo
Qiuping Shen
R D Schaffer
Rafael Teixeira De Lima
Rahul Balasubramanian
Rahul Balasubramanian
Rainer Mankel
Ramona Groeber
Raoul Horst Rontsch
Ricardo Goncalo
Richard Teuscher
Rishabh Jain
Robert Thorne
Robert Valentin Harlander
Roberto Di Nardo
Roberto Salerno
Robin Hayes
Roger Wolf
Rok Medves
Rui Santos
Rui Zhang
Sally Dawson
Samuel Homiller
Sanmay Ganguly
Santeri Laurila
Savvas Kyriacou
Sebastian Brommer
Sebastien Rettie
Sergio Blanco Fernandez
Sergio Sanchez Cruz
Shigeki Hirose
Shufang Su
Siannah Penaranda-Rivas
Silvia Ferrario Ravasio
Simon Platzer
Siyuan Yan
stefania gori
Stefano Manzoni
Stefano Pozzorini
Stephane Brunet Cooperstein
Stephane Willocq
Stephen Philip Jones
Suman Chatterjee
Sven Heinemeyer
Tania Robens
Tatjana Lenz
Tatsuya Masubuchi
Terrance Figy
Tie-Jiun Hou
Timothy Barklow
Tulin Mete
Ulrich Ellwanger
Valentina Cairo
Valerio Dao
Venus Keus
Verena Ingrid Martinez Outschoorn
Veronica Sanz Gonzalez
Vukasin Milosevic
Xiao Liu
Xiaohu Sun
Xuan Chen
Yacine Haddad
Yanlin Liu
Yizhou Cai
Yuhao Wang
Zhen Liu
Zhen Liu
Zhi Zheng
Zijun Xu
Zijun Xu
Zirui Wang

Wednesday 1 December
- 12:55 → 13:00
  
  Introduction and welcome 5m
  
  LHCHWG 2021 - Welcome and Intro.pdf
- 13:00 → 15:15
  Wednesday Afternoon: Working Group 1 session 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Conveners: Alexander Karlberg (University of Oxford), John Campbell, Julie Malcles (Université Paris-Saclay (FR)), Roberto Di Nardo (Università e INFN Roma Tre (IT))
  
  Mattermost discussion channel
  
  Plenary Zoom
  
  Video Recording
  
  Zoom (zoom passcode needed)
  - 13:00
    
    ggF - theory update 10m
    
    Speaker: Stephen Philip Jones (University of Durham (GB))
    
    lhchwg21.pdf
    
    Video Recording
  - 13:10
    
    ggF - experimental results 10m
    
    Speaker: Jonathon Mark Langford (Imperial College (GB))
    
    ggh_lhchwg_211201.pdf
    
    Video Recording
  - 13:25
    
    VBF 20m
    
    Speaker: Antonio De Maria (Nanjing University (CN))
    
    Slides_VBF_activity.pdf
    
    Video Recording
  - 13:50
    
    VH 20m
    
    Speaker: Alessandro Calandri (Eidgenoessische Technische Hochschule Zuerich (CH))
    
    Calandri_VH_01122021.pdf
    
    Video Recording
  - 14:15
    
    tH/ttH: experiment summary 15m
    
    Speaker: Josh McFayden (University of Sussex)
    
    2021-12-01_LHCHWG_ttHtHexp_mcfayden.pdf
    
    Video Recording
  - 14:30
    
    tH/ttH: theory summary 15m
    
    Speaker: Laura Reina (Florida State University (US))
    
    tth-theory-dec-21.pdf
    
    Video Recording
  - 14:50
    
    Offshell - theory summary 10m
    
    Speaker: Nikolas Kauer (Royal Holloway, University of London)
    
    LHCHWG_Offshell_Theory_2021-12-01.pdf
    
    Video Recording
  - 15:00
    
    Offshell - experiment summary 10m
    
    Speaker: Savvas Kyriacou (Johns Hopkins University (US))
    
    LHCHWG.pdf
    
    Video Recording
- 15:15 → 15:45
  
  Wednesday Afternoon: Discussion session on WG1 topics 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion channel
  
  Plenary Zoom
  
  Video Recording
  
  Zoom (zoom passcode needed)
- 15:45 → 16:10
  
  Wednesday Afternoon: Virtual Coffee Break - Q&A in individual speakers' breakout rooms of the main zoom room 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion channel
  
  Plenary Zoom
  
  Video Recording
  
  Zoom (zoom passcode needed)
- 16:10 → 18:10
  Wednesday Afternoon 2: Working Group 2 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Conveners: Giuliano Panico (University of Florence and INFN Florence), Ken Mimasu (King's College London), Mauro Donega (ETH Zurich (CH)), Nicolas Berger (Centre National de la Recherche Scientifique (FR))
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
  - 16:10
    
    WG activity on STXS ggF uncertainties (1.2): Summary and presentation of final results 20m
    
    Speaker: Haider Abidi (Brookhaven National Laboratory (US))
    
    TheorySysggF.pdf
    
    Video Recording
  - 16:34
    
    Kappa_lambda from single Higgs measurements: towards a common parametrisation 20m
    
    Speaker: Stefano Manzoni (CERN)
    
    smanzoni_LHCXSWG2021.pdf
    
    Video Recording
  - 16:58
    
    Shedding light on the Higgs: EFT modelling and sensitivity to Higgs couplings to virtual photons 20m
    
    Speaker: Savvas Kyriacou (Johns Hopkins University (US))
    
    LHCWG_photons.pdf
    
    Video Recording
  - 17:22
    
    EFT in light of the latest Higgs/STXS measurements 20m
    
    Speaker: Eleni Vryonidou (University of Manchester (GB))
    
    LHCHWG_SMEFT.pdf
    
    Video Recording
  - 17:46
    
    Differential fiducial measurements next steps and combination 20m
    
    Speaker: Mingshui Chen (Chinese Academy of Sciences (CN))
    
    202112-diffXS-mschen.pdf
    
    Video Recording
- 18:10 → 18:40
  
  Wednesday Afternoon 2: Working Group 2: Discussion session on WG2 topics 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
- 18:40 → 19:05
  
  Wednesday Afternoon 2: Working Group 2: Q&A in individual speakers' breakout rooms of the main zoom room 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
Thursday 2 December
- 13:00 → 15:00
  Thursday Afternoon: Working Group 3 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Conveners: Abdollah Mohammadi (University of Wisconsin Madison (US)), Jan Steggemann (EPFL and ETH Zurich (CH)), Jana Schaarschmidt (University of Washington (US)), Shufang Su (University of Arizona), Zhen Liu (University of Minnesota), Zhen Liu (University of Minnesota (US)), Zhen Liu (University of Minnesota)
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
  - 13:00
    
    Exotic Decay Working Group Summary 20m
    
    Speaker: Brian Shuve (Harvey Mudd College)
    
    Video Recording
    
    WG3_2021.pdf
  - 13:30
    
    Extended Higgs Theory Summary 10m
    
    Speaker: Tania Natalie Robens (Rudjer Boskovic Institute (HR))
    
    trobens_wg3.pdf
    
    Video Recording
  - 13:45
    
    Extended Higgs Experimental Summary 10m
    
    Speaker: Mariarosaria D'Alfonso (Massachusetts Inst. of Technology (US))
    
    dalfonso_WG3_dec1.pdf
    
    Video Recording
  - 14:00
    
    MSSM Working Group Summary (Theory) 10m
    
    Speaker: Emanuele Angelo Bagnaschi (Universita e INFN Roma Tre (IT))
    
    HXSWG-MSSM-Bagnaschi_v2.pdf
    
    Video Recording
  - 14:15
    
    MSSM Working Group Summary (Experiment) 10m
    
    Speaker: Tim Barklow (SLAC National Accelerator Laboratory (US))
    
    MSSM_WG_Experimental_Summary_Barklow_02dec2021.pdf
    
    Video Recording
  - 14:30
    
    NMSSM Working Group Summary 20m
    
    Speakers: Daniel Winterbottom (Imperial College (GB)), Milada Margarete Mühlleitner, Milada Muhlleitner (KIT - Karlsruhe Institute of Technology (DE)), Ulrich Bernhard Ellwanger (Université Paris-Saclay (FR)), Ulrich Ellwanger (University Paris 11)
    
    NMSSM_Ellwanger.pdf
    
    NMSSMSummary.pdf
    
    Video Recording Daniels Talk
    
    Video Recording Maggies Talk
    
    Video Recording Ulrichs Talk
- 15:00 → 15:30
  
  Thursday Afternoon: Discussion session on WG3 topics 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
- 15:30 → 16:00
  
  Thursday Afternoon: Virtual Coffee Break: Q&A in individual speakers' breakout rooms of the main zoom room 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
- 16:00 → 18:00
  Thursday afternoon 2: HH-cross group 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Conveners: Elizabeth Brost (Brookhaven National Laboratory (US)), Javier Mazzitelli (Max-Planck-Institut fur Physik (DE)), Luca Cadamuro (University of Florida (US)), Margarete Mühlleitner (Karlsruhe Institute of Technology (DE)), Nan Lu (California Institute of Technology (US)), Ramona Groeber (Università di Padova and INFN, Sezione di Padova)
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
  - 16:00
    
    Introduction 5m
    
    LHC-H meeting December 2021 intro.pdf
  - 16:05
    
    Experimental Overview 30m
    
    Speaker: Alessandra Betti (Southern Methodist University (US))
    
    ABetti_HHExperimentalOverview_LHCHWGDecember2021.pdf
  - 16:35
    
    Resonant Benchmarks for Spin-0 HH, SH and SS 20m
    
    Speaker: Duarte Azevedo (Karlsruhe Institute of Technology (DE))
    
    18LHCWG_dihiggs_dazev.pdf
    
    Video Recording
  - 16:55
    
    Effective Field Theory for Higgs Pair Production 20m
    
    Speaker: Ramona Groeber (Università di Padova and INFN, Sezione di Padova)
    
    LHCHiggsWG_ramona.pdf
    
    Video Recording
  - 17:15
    Contributed Lightning Talks 40m
    
    Higgs Boson Pair Production at NNLO in the Large-Mt Expansion 10m
    
    Speaker: Florian Herren (Fermilab)
    
    herren_LHCHXSWG.pdf
    
    Video Recording
    
    Higgs Pair Production at Approximate NNLO QCD with Anomalous Couplings 10m
    
    Speaker: Ludovic Scyboz
    
    LHC_Higgs-2021-Scyboz.pdf
    
    Video Recording
    
    Machine Learning Augmented Probes of Light Yukawa Couplings from Higgs Pair Production 10m
    
    Speaker: Ayan Paul (DESY, Hamburg and Humboldt Universität zu Berlin)
    
    HH-WG-AP-2021.pdf
    
    Video Recording
    
    Multiscalar Final States in the TRSM 10m
    
    Speaker: Gilberto Tetlalmatzi-Xolocotzi (Siegen University)
    
    Short_Talk_Higgs_Talk_v3.pdf
    
    Video Recording
- 18:00 → 18:30
  
  Thursday afternoon 2: Discussion on HH topics 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
- 18:30 → 19:00
  
  Thursday afternoon 2: Q&A in individual speakers' breakout rooms of the main zoom room 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Zoom (zoom passcode needed)
Friday 3 December
- 13:00 → 15:10
  Friday Afternoon: Cross-cutting topics 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Video Recording
  
  Zoom (zoom passcode needed)
  - 13:00
    
    Single and Double Higgs processes: Interpretation in the k_lambda and EFT frameworks 20m
    
    Speaker: Jorge de Blas (Universidad de Granada (ES))
    
    H_HH_Kappa_EFT_deBlas.pdf
    
    Video Recording
  - 13:30
    
    Cuts for two-body decays at colliders 20m
    
    Speaker: Gavin Salam (University of Oxford)
    
    LHCHWG-cuts-salam.pdf
    
    Video Recording
  - 14:00
    
    Higgs pT Spectrum and Total Cross Section with Fiducial Cuts at Third Resummed and Fixed Order in QCD 20m
    
    Speakers: Johannes Michel (MIT CTP), Markus Ebert (MIT)
    
    Michel_Higgs_LHCWG_2021_12_03.pdf
    
    Video Recording
  - 14:30
    
    PDF4LHC update 20m
    
    Speaker: Robert Samuel Thorne (University College London (UK))
    
    PDFLHCHiggs.pdf
    
    Video Recording
- 15:00 → 15:20
  
  Friday Afternoon: Discussion session on cross topics 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Video Recording
  
  Zoom (zoom passcode needed)
- 15:20 → 15:40
  
  Friday Afternoon: Virtual Coffee Break: Q&A in individual speakers' breakout rooms of the main zoom room 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Video Recording
  
  Zoom (zoom passcode needed)
- 15:40 → 18:50
  Friday afternoon 2: Final session and conclusion 222/R-001 (CERN)
  
  222/R-001
  
  CERN
  
  200
  Show room on map
  
  Conveners: Andrei Gritsan (Johns Hopkins University (US)), Fabrizio Caola (University of Oxford (GB)), Giacinto Piacquadio (State University of New York (US)), Karsten Koeneke (Albert Ludwigs Universitaet Freiburg (DE)), Kerstin Tackmann (Deutsches Elektronen-Synchrotron (DE)), LianTao Wang (University of Chicago), Liantao Wang (University of Chicago (US)), Predrag Milenovic (University of Belgrade (RS)), Robert Valentin Harlander (Rheinisch Westfaelische Tech. Hoch. (DE)), Roberto Salerno (Centre National de la Recherche Scientifique (FR)), Veronica Sanz Gonzalez (Universities of Valencia and Sussex)
  
  LHCHWG Mattermost channels
  
  Mattermost discussion link
  
  Plenary Zoom
  
  Video Recording (intro)
  
  Zoom (zoom passcode needed)
  - 15:40
    
    Higgs studies from Snowmass 20m
    
    Speaker: Caterina Vernieri (SLAC National Accelerator Laboratory (US))
    
    Snowmass-EF-HiggsXSWG.pdf
    
    Video Recording
  - 16:10
    
    WG1: summary and plans 15m
    
    Speakers: Alexander Karlberg (University of Oxford), John Campbell, Julie Malcles (Université Paris-Saclay (FR)), Roberto Di Nardo (Università e INFN Roma Tre (IT))
    
    LHCHXS_WG1_WorkshopSummary21.pdf
    
    Video Recording
  - 16:30
    
    WG2: summary and plans 15m
    
    Speakers: Giuliano Panico (University of Florence and INFN Florence), Ken Mimasu (King's College London), Mauro Donega (ETH Zurich (CH)), Nicolas Berger (Centre National de la Recherche Scientifique (FR))
    
    Video Recording
    
    WG2.pdf
  - 16:50
    
    WG3: summary and plans 15m
    
    Speakers: Abdollah Mohammadi (University of Wisconsin Madison (US)), Jan Steggemann (EPFL and ETH Zurich (CH)), Jana Schaarschmidt (University of Washington (US)), Shufang Su (University of Arizona), Zhen Liu, Zhen Liu (University of Minnesota), Zhen Liu (University of Minnesota (US))
    
    Video Recording
    
    wg3_summary.pdf
  - 17:10
    
    HH: summary and plans 15m
    
    Speakers: Elizabeth Brost (Brookhaven National Laboratory (US)), Javier Mazzitelli (Max-Planck-Institut fur Physik (DE)), Luca Cadamuro (University of Florida (US)), Margarete Mühlleitner (Karlsruhe Institute of Technology (DE)), Nan Lu (California Institute of Technology (US)), Ramona Groeber (Università di Padova and INFN, Sezione di Padova)
    
    SummaryLHCHiggsGroupWorkshop.pdf
    
    Video Recording
  - 17:30
    
    General discussion 30m
    
    Video Recording
    
    Young theorists

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The 18th Workshop of the LHC Higgs Working Group

Virtual

222/R-001

CERN

222/R-001

CERN

222/R-001

CERN

222/R-001

CERN

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222/R-001

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