Login

6th General Meeting of the LHC EFT Working Group

15–17 Nov 2023
CERN
Europe/Zurich timezone

Contribution List

41 out of 41 displayed
Export to PDF
  1. 16. SMEFT in the EWK and TOP sectors in CMS (20'+10')
    Andrea Piccinelli (University of Notre Dame (US))
    16/11/2023, 09:40
  2. 17. SMEFT in the EWK sector in ATLAS (10'+5')
    José Antonio Fernández Pretel (Albert Ludwigs Universitaet Freiburg (DE))
    16/11/2023, 10:10
  3. 43. SMEFT in the TOP sector in ATLAS (10'+5')
    Jacob Julian Kempster (University of Sussex (GB))
    16/11/2023, 10:25
  4. 18. EFT in flavor and B-physics in ATLAS, CMS and LHCb (20'+10')
    Guy Henri Maurice Wormser (Université Paris-Saclay (FR)), Guy Wormser (LAL Orsay)
    16/11/2023, 11:10
  5. 15. Progress in the SMEFT-UV connection (20'+10')
    Dr SUPRATIM DAS BAKSHI (Granada University)
    16/11/2023, 11:40
  6. 14. Formal developments in EFTs (20'+10')
    Andreas Helset (CERN)
    16/11/2023, 12:10
  7. 13. Developments in SMEFT phenomenology (20'+10')
    Alejo Nahuel Rossia (University of Manchester)
    16/11/2023, 12:40
  8. 34. Area 4: Update on EFTWG fitting exercise (10'+5')
    Kristin Lohwasser (University of Sheffield (GB))
    16/11/2023, 14:20
  9. 35. Area 4: Report on LHC reinterpretation forum workshop (10'+5')
    Ken Mimasu (University of Southampton)
    16/11/2023, 14:35
  10. 3. Area 4: A practical framework of EFT fits with published likelihoods (20'+5')
    Kyle Stuart Cranmer (University of Wisconsin Madison (US))
    16/11/2023, 14:50

    Recently there has been rapid increase in the number of full statistical models (or "likelihoods") published by the experiments. Most are based on the HistFactory (pyhf) format and published in HEPData. This allows theorists and others to reproduce and combine measurements with the same gold standard as the internal experimental results. However, these are mainly from SUSY and exotics searches...

    Go to contribution page
  11. 4. Area 4: Introducing the FAIROS-HEP Research Coordination Network (5'+5')
    Kyle Stuart Cranmer (University of Wisconsin Madison (US))
    16/11/2023, 15:15

    The US National Science Foundation has funded a 3-year "Research Coordination Network" called FAIROS-HEP. FAIROS-HEP aims to foster the adoption of practices and cyberinfrastructure to enable reuse and reinterpretation of high energy physics (HEP) datasets. The network has funds to support international workshops and to contribute directly to cyberinfrastructure components such as INSPIRE,...

    Go to contribution page
  12. 37. Area 4: Plans & Discussion
    16/11/2023, 15:25
  13. 19. Machine Learning opportunities for EFT analyses
    Maeve Madigan (Heidelberg University)
    16/11/2023, 16:10
  14. 20. Computing optimal observables from the Matrix Element Method with Conditional Normalizing Flows
    Davide Valsecchi (ETH Zurich (CH))
    16/11/2023, 16:50
  15. 21. Quantum Computing and Quantum information in estimating EFTs from measurements
    Vincent Alexander Croft (Nikhef National institute for subatomic physics (NL))
    16/11/2023, 17:05
  16. 22. Public repository for limits on SMEFT Wilson coefficients
    Dr SUPRATIM DAS BAKSHI (Granada University)
    16/11/2023, 17:20
  17. 23. Roadmap towards future combinations and Effective Field Theory interpretations of top+X processes
    Jacob Julian Kempster (University of Sussex (GB))
    16/11/2023, 17:35
  18. 24. Area 2: Update on EFT prediction note
    Alberto Belvedere (Deutsches Elektronen-Synchrotron (DE))
    17/11/2023, 09:00
  19. 25. Area 2: Update on common format & toolchain for SMEFT parameterisations (STXS)
    Eleonora Rossi (University of Oxford (GB)), Ken Mimasu (University of Southampton)
    17/11/2023, 09:20
  20. 7. SmeftFR v3 - a tool for creating and handling vertices in SMEFT to the 1/Λ^4 order
    Michal Ryczkowski
    17/11/2023, 09:40

    SmeftFR v3 [Comput.Phys.Commun. 294 (2024) 108943, 2302.01353, https://www.fuw.edu.pl/smeft/] enables derivation of Feynman rules for interaction vertices from the dimension-5, dimension-6, and (so far) all bosonic dimension-8 SMEFT operators. Obtained Feynman rules allow for consistent numerical or symbolic calculations in SMEFT (e.g., in Madgraph or in FeynArts) to the 1/Λ^4 order in the EFT...

    Go to contribution page
  21. 30. Summary of Area 5 activities and new directions
    Peter Stangl (CERN)
    17/11/2023, 10:40
  22. 31. Matching 2HDM onto Effective Field Theories in ATLAS (15' + 5')
    Andrea Visibile (Nikhef National institute for subatomic physics (NL))
    17/11/2023, 10:55
  23. 32. Matching database + new framework for matching repository (20' + 5')
    Juan Carlos Criado (University of Granada)
    17/11/2023, 11:15
  24. 33. One Loop Effective Action up to Dimension Eight: integrating out heavy scalars and fermions (15' + 5')
    Joydeep Chakrabortty (IIT Kanpur)
    17/11/2023, 11:40

    I will discuss the computation of effective action after integrating out heavy scalars and fermions respectively up to dimension eight. The result is very universal. The generic expressions for the effective operators up to dimension eight are computed for the first time and applicable for any UV model. At this current situation when we are looking more precise calculation beyond dimension...

    Go to contribution page
  25. 26. Higher-order corrections in SMEFT (20'+5')
    Anke Biekoetter (JGU Mainz)
    17/11/2023, 13:20
  26. 27. Positivity constraints (20'+5')
    Mr Marc Riembau Saperas (CERN)
    17/11/2023, 13:45
  27. 28. SMEFT vs HEFT: multi-Higgs phenomenology (15'+5')
    Javier Martínez Martín (Universidad Complutense de Madrid & IPARCOS)
    17/11/2023, 14:10

    This article studies the production of multiple Higgs bosons from longitudinal vector boson scattering in the context of effective field theories.
    The equivalence theorem is employed for a clearer understanding of the $WW\to n\times h$ dynamics.
    In this approximation, the Higgs dynamics is determined at lowest order in the general Higgs Effective Theory (HEFT) by the flare function...

    Go to contribution page
  28. 29. Geometry of EFTs (15'+5')
    Julie Pagès, Julie Pagès (University of California, San Diego)
    17/11/2023, 14:30

    Lagrangian terms of an effective field theory (EFT) are commonly organized as an expansion in terms of the EFT power counting. Field space geometry reorganizes these terms in a more efficient way, allowing the direct generalization of some known results to a resummed tower of operators containing higher-order terms, such as the renormalization group equations at one- and two-loop order, some...

    Go to contribution page
  29. 38. Closing in on New Physics via the Flavor, Collider, and Electroweak Triad (15+5)
    Ben Stefanek
    17/11/2023, 14:50
  30. 39. Effective couplings in $B^0\to K^{*0}\mu^+\mu^-$ (15+5)
    Rafael Silva Coutinho (Syracuse University (US))
    17/11/2023, 15:10
  31. 40. Workshop summary: Heavy flavour aspects in EFT - SL decays (10+5)
    Biljana Mitreska (Technische Universitaet Dortmund (DE))
    17/11/2023, 15:30
  32. 41. Leading directions in SMEFT (15+5)
    Ajdin Palavric (University of Basel)
    17/11/2023, 15:45
  33. 36. Area 4: CMS talk (15'+5')
  34. 6. Closing in on New Physics via the Flavor, Collider, and Electroweak Triad
    Ben Stefanek

    Any new physics (NP) lying at the TeV scale must pass stringent flavor as well as collider bounds. Since the top Yukawa gives the largest quantum correction to the Higgs mass, one well-motivated expectation is TeV-scale NP dominantly coupled to the third family. This setup delivers U(2) flavor symmetries that allow one to start explaining flavor at the TeV scale, while simultaneously improving...

    Go to contribution page
  35. 5. Computing optimal observables from the Matrix Element Method with Conditional Normalizing Flows
    Davide Valsecchi (ETH Zurich (CH))

    This work presents a novel strategy to enhance and expedite the computation of the Matrix Element Method (MEM), a powerful technique for calculating the probability of an event generated by a given theory, using generative machine learning architectures. Despite the theoretical knowledge contained in the MEM, its practical application is hindered by the need for many approximations to compute...

    Go to contribution page
  36. 42. EFT in flavor and B-physics in ATLAS, CMS and LHCb (20'+10')
    Guy Henri Maurice Wormser (Université Paris-Saclay (FR)), Guy Wormser (LAL Orsay)
  37. 2. Leading directions in SMEFT
    Ajdin Palavric (University of Basel)

    Standard Model Effective Field Theory (SMEFT) provides a robust approach to explore short-distance new physics effects in a model-independent way. One of the inherent shortcomings of SMEFT is the number of independent parameters, which need to be taken into account to perform the SMEFT analysis in full generality. In this presentation, some of the well-motivated options to reduce the number of...

    Go to contribution page
  38. 1. One Loop Effective Action up to Dimension Eight: integrating out heavy scalars and fermions
    Prof. Joydeep Chakrabortty

    I will discuss the computation of effective action after integrating out heavy scalars and fermions respectively up to dimension eight. The result is very universal. The generic expressions for the effective operators up to dimension eight are computed for the first time and applicable for any UV model. At this current situation when we are looking more precise calculation beyond dimension...

    Go to contribution page
  39. 12. Public repository for limits on SMEFT Wilson coefficients
    Dr SUPRATIM DAS BAKSHI (Granada University)

    Here, we will propose a github repository for collecting and
    displaying the best limits on SMEFT Wilson coefficients. We will
    explain the bound submission and automated display process for new
    contributors and the minimal coding steps included for that. We will
    elaborate on how we keep it open-source and involve minimal (or null)
    human maintenance. Also, We will discuss the template in...

    Go to contribution page
  40. 11. Quantum Computing and Quantum information in estimating EFTs from measurements.
    Vincent Alexander Croft (Nikhef National institute for subatomic physics (NL))

    In the quest for new physics at the LHC, Effective Field Theory (EFT) provides a robust framework for interpreting data. While classical machine learning is an excellent tool for isolating the effects of individual Wilson Coefficients in experimental data, it is limited in its ability to capture the underlying quantum correlations that these coefficients parametrize. This research proposes the...

    Go to contribution page
  41. 8. Roadmap towards future combinations and Effective Field Theory interpretations of top+X processes
    Jacob Julian Kempster (University of Sussex (GB))

    The ATLAS Collaboration produced a roadmap detailing the challenges of combining top+X measurements to produce coherent probes of the Standard Model predictions and Effective Field Theory (EFT) interpretations. Different approaches for combinations and EFT parameter extractions are outlined, and prerequisites on the harmonisation of physics objects and phase-space regions are described. A plan...

    Go to contribution page