The meeting will consist of two sessions. The first session will concentrate mainly (but not exclusively) on Standard Model issues, including Higgs physics. It will cover many topics related to the precise computations of cross sections of SM processes, and their phenomenological exploitation. The second session is geared more towards the implications of the discovered Higgs-like signal and the absence of BSM signals at the LHC. From the 2021 edition, new ideas to look for Physics Beyond the Standard Model in low-energy experiments will also be discussed in the second session. As usual within the Les Houches PhysTeV series, we expect a very strong interplay and collaboration between the different groups and their subgroups. The latter are set up only as a guide. Indeed, in several instances similar activities will be covered by different working groups making a strict separation into working groups somewhat unnatural.


The projects are to start in March/April 2021 and should be completed by the end of the year 2021.


The list of topics will be updated regularly and a more detailed plan of work will be posted on the Wiki pages. The Wiki pages will also be the forum for exchanging ideas and contributing to the working groups of PhysTeV 2021, even if you are not attending the meeting in Les Houches. We encourage you to actively contribute to the wiki pages.


Session 1: 7-16 June 2021

This session covers issues related to precision physics and better understanding of standard model processes (including Higgs production). The main topics are the progress of QCD and EW fixed-order computations (at NLO, NNLO, and beyond), as well as of computations at all orders (resummation). The implementation of these corrections in Monte Carlo event generators, as well as the ongoing progress on the understanding of the formal accuracy of Parton Showers will also be discussed. Another central point to be addressed will be the impact of all the above theoretical advances, as well as of new search techniques, on the Higgs phenomenology, and on other precision SM studies. Physics of jets, notably jet-substructure techniques and their application to boosted objects, will also be addressed in this session. The list of topics will be updated on the Wiki (see here).

Higgs Physics (SM aspects)

Theory Experiment
F. Caola, University of Oxford, UK
S. Jones, IPPP, Durham University, UK
Mauro Donegà, ETH Zurich, Switzerland [CMS]

Standard Model Phenomenology

Theory Experiment
Techniques, calculations, and phenomenology
A. Huss, CERN, Switzerland, and IPPP, Durham University, UK
M. Pellen, University of Freiburg, Germany
J. Huston, Michigan State University, USA​ [ATLAS]
Jet substructure techniques
S. Marzani, University of Genova, Italy
B. Nachman, LBNL, Berkeley, USA [ATLAS]

Monte Carlo generators, Tools, Machine-Learning

Theory Experiment
S. Plätzer, University of Vienna, Austria
F. Siegert, University of Dresden, Germany
MC: J. McFayden, University of Sussex, UK [ATLAS]
ML: B. Nachman, LBNL, Berkeley, USA [ATLAS]


Session 2: 16-25 June 2021

This session covers issues related to the search for physics beyond the Standard Model (BSM), in particular its experimental signatures. As in previous editions of the Workshop, the main topics include the BSM aspects of Higgs physics together with more general BSM collider phenomenology. For the 2021 edition, low-energy probes of new physics will be discussed in a dedicated new working group. The traditional Tools and Monte-Carlo working group is extended to Machine-Learning aspects in new physics searches. The list of topics will be updated on the Wiki (see here).

Higgs Physics (BSM aspects)

Theory Experiment
R.T. D'Agnolo, IPhT Saclay, France TBA

BSM Phenomenology at colliders

Theory Experiment
J. Kamenik, University of Ljubljana, Slovenia V. Cavaliere, BNL, Brookhaven, USA [ATLAS]

High-precision low-energy probes

Theory Experiment
G. Perez, Weizmann Institute, Israel
E. Fuchs, University of Chicago and Fermilab, USA

Monte Carlo generators, Tools, Machine-Learning

Theory Experiment
G. Durieux, CERN, Switzerland
A. Wulzer, CERN & EPFL, Switzerland, and University of Padua, Italy