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

The 18th Workshop of the LHC Higgs Working Group

from Wednesday 1 December 2021 (09:00) to Friday 3 December 2021 (19:00)

Monday 29 November 2021
Tuesday 30 November 2021
Wednesday 1 December 2021

12:55 Introduction and welcome
Introduction and welcome
12:55 - 13:00
13:00 Working Group 1 session
Working Group 1 session
13:00 - 15:15
Room: 222/R-001
Contributions

13:00 ggF - theory update - Stephen Philip Jones (University of Durham (GB))

13:10 ggF - experimental results - Jonathon Mark Langford (Imperial College (GB))

13:25 VBF - Antonio De Maria (Nanjing University (CN))

13:50 VH - Alessandro Calandri (Eidgenoessische Technische Hochschule Zuerich (CH))

14:15 tH/ttH: experiment summary - Josh McFayden (University of Sussex)

14:30 tH/ttH: theory summary - Laura Reina (Florida State University (US))

14:50 Offshell - theory summary - Nikolas Kauer (Royal Holloway, University of London)

15:00 Offshell - experiment summary - Savvas Kyriacou (Johns Hopkins University (US))
15:15 Discussion session on WG1 topics
Discussion session on WG1 topics
15:15 - 15:45
Room: 222/R-001

15:45 Virtual Coffee Break - Q&A in individual speakers' breakout rooms of the main zoom room
Virtual Coffee Break - Q&A in individual speakers' breakout rooms of the main zoom room
15:45 - 16:10
Room: 222/R-001
16:10
16:10 - 18:10
Room: 222/R-001
Contributions

16:10 WG activity on STXS ggF uncertainties (1.2): Summary and presentation of final results - Haider Abidi (Brookhaven National Laboratory (US))

16:34 Kappa_lambda from single Higgs measurements: towards a common parametrisation - Stefano Manzoni (CERN)

16:58 Shedding light on the Higgs: EFT modelling and sensitivity to Higgs couplings to virtual photons - Savvas Kyriacou (Johns Hopkins University (US))

17:22 EFT in light of the latest Higgs/STXS measurements - Eleni Vryonidou (University of Manchester (GB))

17:46 Differential fiducial measurements next steps and combination - Mingshui Chen (Chinese Academy of Sciences (CN))
18:10 Discussion session on WG2 topics
Discussion session on WG2 topics
18:10 - 18:40
Room: 222/R-001

18:40 Q&A in individual speakers' breakout rooms of the main zoom room
Q&A in individual speakers' breakout rooms of the main zoom room
18:40 - 19:05
Room: 222/R-001
Thursday 2 December 2021
13:00 Working Group 3
Working Group 3
13:00 - 15:00
Room: 222/R-001
Contributions

13:00 Exotic Decay Working Group Summary - Brian Shuve (Harvey Mudd College)

13:30 Extended Higgs Theory Summary - Tania Natalie Robens (Rudjer Boskovic Institute (HR))

13:45 Extended Higgs Experimental Summary - Mariarosaria D'Alfonso (Massachusetts Inst. of Technology (US))

14:00 MSSM Working Group Summary (Theory) - Emanuele Angelo Bagnaschi (Universita e INFN Roma Tre (IT))

14:15 MSSM Working Group Summary (Experiment) - Tim Barklow (SLAC National Accelerator Laboratory (US))

14:30 NMSSM Working Group Summary - 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)
15:00 Discussion session on WG3 topics
Discussion session on WG3 topics
15:00 - 15:30
Room: 222/R-001

15:30 Virtual Coffee Break: Q&A in individual speakers' breakout rooms of the main zoom room
Virtual Coffee Break: Q&A in individual speakers' breakout rooms of the main zoom room
15:30 - 16:00
Room: 222/R-001
16:00 HH-cross group
HH-cross group
16:00 - 18:00
Room: 222/R-001
Contributions

16:00 Introduction

16:05 Experimental Overview - Alessandra Betti (Southern Methodist University (US))

16:35 Resonant Benchmarks for Spin-0 HH, SH and SS - Duarte Azevedo (Karlsruhe Institute of Technology (DE))

16:55 Effective Field Theory for Higgs Pair Production - Ramona Groeber (Università di Padova and INFN, Sezione di Padova)

17:15 Contributed Lightning Talks
18:00 Discussion on HH topics
Discussion on HH topics
18:00 - 18:30
Room: 222/R-001

18:30 Q&A in individual speakers' breakout rooms of the main zoom room
Q&A in individual speakers' breakout rooms of the main zoom room
18:30 - 19:00
Room: 222/R-001
Friday 3 December 2021
13:00 Cross-cutting topics
Cross-cutting topics
13:00 - 15:10
Room: 222/R-001
Contributions

13:00 Single and Double Higgs processes: Interpretation in the k_lambda and EFT frameworks - Jorge de Blas (Universidad de Granada (ES))

13:30 Cuts for two-body decays at colliders - Gavin Salam (University of Oxford)

14:00 Higgs pT Spectrum and Total Cross Section with Fiducial Cuts at Third Resummed and Fixed Order in QCD - Johannes Michel (MIT CTP) Markus Ebert (MIT)

14:30 PDF4LHC update - Robert Samuel Thorne (University College London (UK))
15:00 Discussion session on cross topics
Discussion session on cross topics
15:00 - 15:20
Room: 222/R-001

15:20 Virtual Coffee Break: Q&A in individual speakers' breakout rooms of the main zoom room
Virtual Coffee Break: Q&A in individual speakers' breakout rooms of the main zoom room
15:20 - 15:40
Room: 222/R-001
15:40 Final session and conclusion
Final session and conclusion
15:40 - 18:50
Room: 222/R-001
Contributions

15:40 Higgs studies from Snowmass - Caterina Vernieri (SLAC National Accelerator Laboratory (US))

16:10 WG1: summary and plans - Alexander Karlberg (University of Oxford) John Campbell Julie Malcles (Université Paris-Saclay (FR)) Roberto Di Nardo (Università e INFN Roma Tre (IT))

16:30 WG2: summary and plans - 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))

16:50 WG3: summary and plans - 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))

17:10 HH: summary and plans - 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)

17:30 General discussion

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