QCD@LHC 2024

7 Oct 2024, 08:00 → 11 Oct 2024, 16:00 Europe/Berlin

University of Freiburg

                                                                                                   

Scientific program:

The 14th edition of QCD@LHC, aiming at fostering discussions and collaboration between experimenters and theorists working on strong interactions at the LHC, will be held in Freiburg, Germany

Conference poster

Topics and conveners:

• Perturbative and resummed predictions for LHC
  Conveners: Ben Page, Johannes Michel, Vieri Candelise, Stefano Camarda
• Parton showers and event generators 
  Conveners: Christian Preuss, Melissa van Beekveld, Saptaparna Bhattacharya, Ana Rosario Cueto Gomez
• Parton distribution functions 
  Conveners: Kay Schönwald, Yong Zhao, Simone Amoroso, Eimear Conroy
• Soft interactions, non-perturbative QCD 
  Conveners: Stefan Gieseke, Tuomas Lappi, Michael Pitt, Lydia Beresford
• Higgs, electroweak, BSM physics
  Conveners: Mathieu Pellen, Eleni Vryonidou, Roberto Covarelli, Tatsuya Masubuchi
• Heavy Quarks (including top and flavour physics)
  Conveners: Rui-Lin Zhu, Gilberto Tetlalmatzi-Xolocotzi, Baptiste Ravina, Lorenzo Capriotti

Talks by invitation only. In case you are interested in giving a talk, please contact the respective conveners.

International Advisory Committee:

Sergey Alekhin (DESY), Johannes Blümlein (DESY), Claude Duhr (Bonn), Keith Ellis (Durham), Thomas Gehrmann (Zürich), Nigel Glover (Durham), Joey Huston (Michigan State), Judith Katzy (DESY), Frank Krauss (Durham), Jean-Philippe Lansberg (Orsay), Fabio Maltoni (Louvain), Michelangelo Mangano (CERN), Zoltan Nagy (DESY), Eram Syed Rizvi (QMUL), Frank Siegert (Dresden), Dominik Stöckinger (Dresden), Zoltan Trocsanyi (Budapest), Doreen Wackeroth (Buffalo), Ciaran Williams (Buffalo), 

Local Organizing Committee:

Stefan Dittmaier, Karl Jakobs, Heidi Rzehak, Markus Schumacher, Maximilian Stahlhofen, Christian Weiser, Christina Skorek (secr.), Susanne Trauth (secr.)

Group Photo from the conference

Previous editions:

• 2023 Durham, UK
• 2022 Orsay, France
• 2020 (virtual)
• 2019 Buffalo, USA
• 2018 Dresden, Germany
• 2017 Debrecen, Hungary 
• 2016 Zürich, Switzerland 
• 2015 QMUL, UK 
• 2014 Suzdal, Russian Federation
• 2013 DESY Hamburg, Germany 
• 2012 Michigan State University, USA 
• 2011 St Andrews, Scotland
• 2010 Trento, Italy

ImportedPhoto.750248625.617772.jpeg

Poster_QCDatLHC2024.pdf

Monday 7 October ¶

08:00 Registration

Plenary session¶

Convener: Karl Jakobs (University of Freiburg (DE))

1 Welcome¶

Speaker: Stefan Dittmaier (University of Freiburg)

QCDLHC24-Intro.pdf

2 Overview of higher-order calculations¶

Speaker: Lorenzo Tancredi (Technische Universitat Munchen (DE))

QCD@LHC_Tancredi_07.10.2024.pdf

3 Advances in resummed calculations¶

Speaker: Thomas Becher (University of Bern)

QCDatLHC24_Becher.pdf

4 Strong coupling measurements at the LHC¶

Speaker: Valentina Guglielmi (Deutsches Elektronen-Synchrotron (DE))

QCD@LHC2024_Guglielmi_Def.pdf

10:40 Coffee break

Plenary session¶

Convener: Ansgar Denner

5 QCD aspects in W and Z production, with focus on high pT¶

Speaker: Florencia Luciana Castillo (Centre National de la Recherche Scientifique (FR))

QCD aspects in W and Z production, with focus on high-pT W_Z.pdf

6 Event generators (recent developments)¶

Speaker: Steffen Schumann

Schumann_QCDatLHC24.pdf

7 Parton showers (recent developments)¶

Speaker: Simon Platzer (University of Graz (AT))

slides.pdf

slides-reduced.pdf

12:30 Lunch break

Higgs, EW, BSM physics¶

Conveners: Eleni Vryonidou (University of Manchester (GB)), Mathieu Pellen (Albert Ludwigs Universitaet Freiburg (DE)), Roberto Covarelli (University/INFN Torino (IT)), Tatsuya Masubuchi (Osaka University)

8 Precision calculation for di-Higgs production¶

Speaker: Huai-Min Yu

gg2HH_Freiburg.pdf

9 Di-Higgs production measurements and EFT interpretations¶

Speaker: Nathan Peter Readioff (University of Sheffield (GB))

DiHiggs Production And EFT Interpretations.pdf

10 Measurement of Higgs rare productions and decay modes¶

Speaker: Aliaksei Raspiareza (Deutsches Elektronen-Synchrotron (DE))

ARaspereza_RareHiggs_v1.pdf

PDFs¶

Conveners: Eimear Isobel Conroy (University of Oxford (GB)), Kay Schönwald (University of Zuerich), Simone Amoroso (Deutsches Elektronen-Synchrotron (DE)), Yong Zhao

ZOOM link (for external speaker only)

11 Towards splitting functions at four-loop order¶

Speaker: Tongzhi Yang

QCD@LHC24_TZY.pdf

12 Progress in the calculation of N3LO splitting functions¶

Speaker: Sven-Olaf Moch (Deutsches Elektronen-Synchrotron (DE))

qcd_at_lhc-24.pdf

13 Explainable AI classification for parton density theory¶

Speaker: Brandon Kriesten

XAI_QCD_LHC.pdf

Perturbative and resummed predictions in QCD¶

Conveners: Ben Page, Johannes Michel (MIT CTP), Stefano Camarda (CERN), Vieri Candelise (Universita e INFN Trieste (IT))

14 Multijet and multi-differential dijet measurements with ATLAS and CMS¶

Speaker: Argyro Ziaka (University of Ioannina (GR))

QCD_LHC2024_ArgyroZiaka.pdf

15 Determinations of alphas with ATLAS and CMS¶

Speaker: Oleg Kuprash (Albert Ludwigs Universitaet Freiburg (DE))

2024_10_07_alpha_s_measurements.pdf

16 Theory uncertainties in the extraction of alphaS from the Z pT¶

Speaker: Giulia Marinelli

marinelli_qcdlhc.pdf

15:30 Coffee break

Heavy quarks¶

Conveners: Baptiste Ravina (Georg August Universitaet Goettingen (DE)), Gilberto Tetlalmatzi-Xolocotzi (Siegen University), Lorenzo Capriotti (Universita e INFN, Ferrara (IT)), Ruilin Zhu (Nanjing Normal University)

ZOOM link (for external speaker only)

17 Theoretical predictions for ttW and ttZ production¶

Speaker: Prof. Nikolaos Kidonakis

Kidonakis.pdf

18 Energy correlators for top mass measurement¶

Speaker: Dr Aditya Pathak (DESY)

Aditya_Pathak_QCD@LHC.pdf

19 Modelling off-shell effects with machine learning¶

Speaker: Mathias Kuschick

Kuschick.pdf

Higgs, EW, BSM physics¶

Conveners: Eleni Vryonidou (University of Manchester (GB)), Mathieu Pellen (Albert Ludwigs Universitaet Freiburg (DE)), Roberto Covarelli (University/INFN Torino (IT)), Tatsuya Masubuchi (Osaka University)

20 Extended Higgs sectors and their corresponding trilinear couplings¶

Speaker: Johannes Braathen (DESY)

Braathen_QCDLHC2024.pdf

21 SMEFT in the Higgs sector: higher loop contributions¶

Speaker: Marco Vitti

QCDLHC_Vitti.pdf

22 BSM Higgs searches (incl. exotic Higgs decays)¶

Speaker: Jia Jian Teoh (University of Toronto (CA))

BSM_Higgs_QCDatLHC_JJTeoh.pdf

Perturbative and resummed predictions in QCD¶

Conveners: Ben Page, Johannes Michel (MIT CTP), Stefano Camarda (CERN), Vieri Candelise (Universita e INFN Trieste (IT))

23 RG-improved resummation of super-leading logarithms¶

Speakers: Philipp Böer, Dr Philipp Böer (TU Munich), Philipp Böer

Boeer_Freiburg.pdf

24 Jet substructure studies with ATLAS and CMS¶

Speakers: Luka Selem, Luka Selem (Centre National de la Recherche Scientifique (FR))

JetSubstructure_v2.pdf

25 Locally finite two-loop amplitudes in gluon fusion for multi Higgs production¶

Speaker: Julia Karlen (ETH Zurich)

qcd@lhc_JuliaKarlen.pdf

Tuesday 8 October ¶

Plenary session¶

Convener: Klaus Rabbertz (KIT - Karlsruhe Institute of Technology (DE))

26 Precision Higgs calculations¶

Speaker: Gudrun Heinrich (KIT)

QCD_LHC_Higgs_GHeinrich.pdf

27 Status of Higgs boson precision measurements¶

Speaker: Johannes Erdmann (RWTH Aachen University)

QCDatLHC2024.pdf

28 Status of electroweak parameter measurements¶

Speaker: Frederic Derue (LPNHE-Paris CNRS/IN2P3)

FDerue-QCDLHC2024-Oct2024.pdf

10:30 Coffee break

Plenary session¶

Convener: Gudrun Heinrich (KIT)

29 Electroweak multi-boson production and scattering¶

Speaker: Ansgar Denner (Julius Max. Universitaet Wuerzburg (DE))

fr24.pdf

30 EFT fits and interpretations¶

Speaker: Anke Biekoetter (JGU Mainz)

Biekoetter_EFTfits.pdf

31 Overview on BSM searches¶

Speaker: Brendan Regnery (KIT - Karlsruhe Institute of Technology (DE))

Regnery_QCD@LHC.pdf

12:30 Lunch break

PDFs¶

Conveners: Eimear Isobel Conroy (University of Oxford (GB)), Kay Schönwald (University of Zuerich), Simone Amoroso (Deutsches Elektronen-Synchrotron (DE)), Yong Zhao

ZOOM link (for external speaker only)

32 CTEQ Updates¶

Speaker: Dr TIMOTHY J HOBBS (Argonne National Laboratory)

QCD-LHC-24_CT_Hobbs.pdf

33 NNPDF Updates¶

Speaker: Roy Stegeman

qcd@lhc_stegeman.pdf

34 ABMP Updates¶

Speaker: Oleksandr Zenaiev

Zenaiev-QCDLHC.pdf

Parton showers and event generators¶

Conveners: Ana Rosario Cueto Gomez (Universidad Autonoma de Madrid (ES)), Christian Preuss (University of Wuppertal), Melissa Corona van Beekveld (Nikhef National institute for subatomic physics (NL)), Saptaparna Bhattacharya (Wayne State University (US))

35 Parton showers and event generators studies and modelling from ATLAS and CMS¶

Speaker: Weijie Jin (University of Zurich (CH))

talk_partonshower.pdf

36 MiNNLOPS event-generator: colour singlet plus one jet events¶

Speaker: Silvia Zanoli (University of Oxford)

QCD@LHC_Zanoli.pdf

37 Geneva event-generator: colour-singlet plus one jet events¶

Speaker: Davide Napoletano (Universita & INFN, Milano-Bicocca (IT))

talk.pdf

Perturbative and resummed predictions in QCD¶

Conveners: Ben Page, Johannes Michel (MIT CTP), Stefano Camarda (CERN), Vieri Candelise (Universita e INFN Trieste (IT))

38 Five-parton scattering in the high-energy limit¶

The availability of high-multiplicity multi-loop scattering amplitudes in QCD provides invaluable data for studying the theory under special kinematic configurations. Recent calculations of two-loop full-colour QCD amplitudes for the scattering of five partons have enabled us to explore their high-energy limit, known as Multi-Regge Kinematics (MRK). In this limit, a universal factorisation pattern is expected for the amplitude. However, starting at the next-to-next-to-leading logarithmic order (NNLL), the exchange of multiple reggeons (MR) disrupts this factorisation.
In this talk, I will first review the effective theory that accurately describes the high-energy limit and how it predicts the MR contributions. Once the latter are properly accounted for, the universal factorisation pattern is restored. This restoration allowed us to extract a fundamental ingredient for the factorisation at NNLL: the Lipatov vertex at two-loop order. I will also delve into various technical details of how this calculation was carried out.

Speakers: Federico Buccioni, Federico Buccioni, Federico Buccioni (University of Zurich)

buccioni_qcdatlhc24.pdf

39 Two-loop virtual contributions to qq->ttH production, numerically¶

I'd like to present the numerical calculation of the Nf-part of the 2-loop 5-point massive virtual amplitudes for qq->ttH production based on arXiv:2402.03301, describing the methods (i.e. sector decomposition), the tools (pySecDec and Ratracer), and the outlook for the remaining work.

Speaker: Vitaly Magerya

magerya-qqtth-freiburg2024.pdf

40 [Canceled] Anomalous dimensions of soft functions at subleading power¶

Speakers: Xing Wang, Xing Wang (TU Munich)

15:30 Coffee break

Heavy quarks¶

Conveners: Baptiste Ravina (Georg August Universitaet Goettingen (DE)), Gilberto Tetlalmatzi-Xolocotzi (Siegen University), Lorenzo Capriotti (Universita e INFN, Ferrara (IT)), Ruilin Zhu (Nanjing Normal University)

ZOOM link (for external speaker only)

41 Binding mechanisms for exotic states¶

Speaker: Elena Santopinto (INFN e Universita Genova (IT))

QCD@LHC2024santopinto_last_compresso.pdf

42 NRQCD description of multiquark states¶

Speaker: Abhishek Mohapatra (Technical University of Munich)

QCD@LHC-2024-Abhishek.pdf

QCD@LHC-2024-Abhishek.pptx

43 Left-hand cut problem and doubly heavy tetraquarks¶

Speaker: Vadim Baru

Freiburg_Baru.pdf

Higgs, EW, BSM physics¶

Conveners: Eleni Vryonidou (University of Manchester (GB)), Mathieu Pellen (Albert Ludwigs Universitaet Freiburg (DE)), Roberto Covarelli (University/INFN Torino (IT)), Tatsuya Masubuchi (Osaka University)

44 Theory and phenomenology of gauge-boson polarisations at the LHC¶

Speaker: Giovanni Pelliccioli (Max-Planck-Institut für Physik)

gp_qcdatlhc_24.pdf

45 Diboson/triboson production and polarization measurements¶

Speaker: Saptaparna Bhattacharya (Wayne State University (US))

QCDAtLHC.pdf

46 Vector-boson fusion/scattering measurements¶

Speaker: Ms Costanza Carrivale (Universita e INFN, Perugia (IT))

QCD@LHC.pdf

Soft interactions, non-perturbative QCD¶

Conveners: Lydia Audrey Beresford (Deutsches Elektronen-Synchrotron (DE)), Michael Pitt (The University of Kansas (US)), Stefan Gieseke (Karlsruhe Institute of Technology), Tuomas Lappi

ZOOM link (for external speaker only)

47 Soft Physics in EPOS¶

Speaker: Dr Tanguy Pierog

EPOS4_SoftQCD_Pierog.pdf

48 Recent soft QCD results from ATLAS and LHCf¶

Speaker: Carlos Moreno Martinez (Universite de Geneve (CH))

SoftQCD_ATLAS_LCHf_CMoreno.pdf

49 Central exclusive diffraction in UPC at LHCb experiment¶

Speaker: Ronan Mcnulty (University College Dublin (IE))

QCD@LHC_mcnulty.pdf

Wednesday 9 October ¶

Plenary session¶

Convener: Yasmine Sara Amhis (IJCLab/CERN)

50 Precision calculations for heavy-quark production¶

Speaker: Rene Poncelet (IFJ PAN Krakow)

2024.10.06-Freiburg-QCD@LHC-poncelet.pdf

51 Recent experimental results on top and heavy-flavour production¶

Speaker: Thorsten Kuhl (Deutsches Elektronen-Synchrotron (DE))

20241009QCDatLHC.pdf

52 Flavour-sensitive jet algorithms¶

Speaker: Giovanni Stagnitto (University of Milano Bicocca)

stagnitto_QCDatLHC24.pdf

10:30 Coffee break

Plenary session¶

Convener: Steffen Schumann

53 Heavy quark production and the variable-flavor-number-scheme at NNLO¶

Speaker: Kay Schönwald (University of Zuerich)

QCDatLHC_24.pdf

54 Anomalies in the flavour sector - current status -¶

Speaker: Konstantinos Petridis (University of Bristol (GB))

QCDatLHC2024_KAPetridis.pdf

55 QCD and flavour physics at future lepton colliders¶

Speaker: Yasmine Sara Amhis (IJCLab/CERN)

Lepton-Colliders-Yasmine-Amhis-QCD.pdf

12:30 Lunch break

Social event¶

Thursday 10 October ¶

Plenary session¶

Convener: Sven-Olaf Moch (Deutsches Elektronen-Synchrotron (DE))

56 Impact of QCD and PDF uncertainties on SM precision measurements¶

Speaker: Markus Seidel (Riga Technical University (LV))

qcdatlhc_mseidel.pdf

57 Impact of QCD and PDF uncertainties on BSM searches¶

Speaker: Miha Muskinja (Jozef Stefan Institute (SI))

miham_10_10_2024_QCD_LHC.pdf

58 PDF constraints from new data and expectations from future experiments¶

Speaker: Dr Juan M. Cruz Martinez (CERN)

juacrumar_qcdatLHC.pdf

10:30 Coffee break

Plenary session¶

Convener: Stefan Gieseke (Karlsruhe Institute of Technology)

59 Recent advances in PDFs from lattice QCD¶

Speaker: Prof. Martha Constantinou

QCD@LHC_2024_Constantinou.pdf

60 Highlights of heavy-ion collisions at the LHC¶

Speaker: Enrico Fragiacomo (Universita e INFN Trieste (IT))

QCDatLHC_EnricoFragiacomo_v2.pdf

12:00 Lunch break

Heavy quarks¶

Conveners: Baptiste Ravina (Georg August Universitaet Goettingen (DE)), Gilberto Tetlalmatzi-Xolocotzi (Siegen University), Lorenzo Capriotti (Universita e INFN, Ferrara (IT)), Ruilin Zhu (Nanjing Normal University)

ZOOM link (for external speaker only)

61 Observable CP-violation in charmed baryons decays with SU(3) symmetry analysis¶

Speaker: Zhi-Peng Xing (NanJing Normal University)

62 Revisiting D → πℓℓ decays in the Standard Model, using LCSRs¶

Speakers: Anshika Bansal (Physical Research Laboratory, Ahmedabad), Anshika Bansal

QCD@LHC_Anshika.pdf

63 Precision meets new physics in the heavy-quark expansion¶

Speakers: Martin Lang, Martin Sebastian Lang, Martin Sebastian Lang

20241010_PrecisionMeetsNPintheHQE.pdf

Higgs, EW, BSM physics¶

Conveners: Eleni Vryonidou (University of Manchester (GB)), Mathieu Pellen (Albert Ludwigs Universitaet Freiburg (DE)), Roberto Covarelli (University/INFN Torino (IT)), Tatsuya Masubuchi (Osaka University)

64 Mixed EW-QCD corrections for the Drell-Yan process at the LHC¶

Speaker: Tommaso Armadillo

freiburg_armadillo.pdf

65 Electroweak Sudakov logarithms in event generators¶

Speaker: Timea Vitos

QCDatLHC_Vitos.pdf

66 Single boson (W, Z, H) cross-section measurements¶

Speaker: Maximilian Emanuel Goblirsch-Kolb (CERN)

2024-10-10-QCDatLHC_SingleBosons_goblirsch.pdf

Soft interactions, non-perturbative QCD¶

Conveners: Lydia Audrey Beresford (Deutsches Elektronen-Synchrotron (DE)), Michael Pitt (The University of Kansas (US)), Stefan Gieseke (Karlsruhe Institute of Technology), Tuomas Lappi

ZOOM link (for external speaker only)

67 Searching for QGP signals in small systems at the LHC¶

Speaker: Dong Jo Kim (University of Jyvaskyla (FI))

QCDLHC24_QGPsmallsystem_djkim.pdf

68 Soft Physics in Pythia¶

Speaker: Leif Lönnblad (Lund University (SE))

QCD@LHC24.pdf

69 Event shape variables in pp collisions in CMS¶

Speaker: Weijie Jin (University of Zurich (CH))

talk_eventshape.pdf

15:30 Coffee break

PDFs¶

Conveners: Eimear Isobel Conroy (University of Oxford (GB)), Kay Schönwald (University of Zuerich), Simone Amoroso (Deutsches Elektronen-Synchrotron (DE)), Yong Zhao

ZOOM link (for external speaker only)

70 Lattice Calculation of Distribution Amplitude for Mesons¶

We present a lattice QCD calculation of the distribution amplitudes for pseudoscalar mesons, specifically the pion and kaon, as well as for polarized vector mesons, K* and φ, using large momentum effective theory. This study employs the clover fermion action across three ensembles with 2+1+1 flavors of highly improved staggered quarks, as generated by the MILC Collaboration at physical pion mass and lattice spacings of {0.06, 0.09, 0.12} fm. The lattice matrix elements obtained are nonperturbatively renormalized using a recently proposed hybrid scheme with self-renormalization, and they are reliably extrapolated to both the continuum and the infinite momentum limits. We also investigated the systematic uncertainties from various aspects.

Speaker: Min-Huan Chu (Adam Mickiewicz University)

Min-Huan Chu.pdf

71 Lattice calculations of GPDs and their uncertainties¶

Using the recent calculation of GPD moments by the Hadstruc collaboration in the pseudo-distribution formalism, I will present the possibilities and challenges faced in terms of uncertainty. I will notably discuss the questions of the continuum limit, higher twist contamination, perturbative matching and inverse problem reconstruction for the x-dependence.

Speaker: Herve Dutrieux (William and Mary)

Presentation_2024_10_10__QCD_LHC_.pdf

72 TMDs from lattice QCD¶

Speaker: Michael Wagman

Wagman_QCD-LHC_24.pdf

Parton showers and event generators¶

Conveners: Ana Rosario Cueto Gomez (Universidad Autonoma de Madrid (ES)), Christian Preuss (University of Wuppertal), Melissa Corona van Beekveld (Nikhef National institute for subatomic physics (NL)), Saptaparna Bhattacharya (Wayne State University (US))

73 Log accuracy in parton showers¶

Speaker: Dr Alexander Karlberg (CERN)

101024QCDatLHC.pdf

74 Recent progress of CVolver¶

Speaker: Fernando Torre González (The University of Manchester)

QCD@LHC.pdf

75 Efficiency of event generators¶

Speaker: Enrico Bothmann (University of Göttingen)

enrico-bothmann-efficiency.pdf

Perturbative and resummed predictions in QCD¶

Conveners: Ben Page, Johannes Michel (MIT CTP), Stefano Camarda (CERN), Vieri Candelise (Universita e INFN Trieste (IT))

76 Associated production of bosons and light jets with ATLAS and CMS¶

Speakers: Juan Pablo Fernandez Ramos (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES)), Julia Vasquez

qcdatlhc2024vjets-jpfr.pdf

77 Measurements of a vector boson and heavy-flavor jets with ATLAS and CMS¶

Speaker: Sandeep Kaur (Carleton University (CA))

QCD@LHC2024_SandeepKaur.pdf

78 Z boson production in association with bottom quarks at NNLO+PS¶

Speakers: Javier Mazzitelli, Javier Mazzitelli (Paul Scherrer Institut (CH)), Javier Mazzitelli (Universidad de Buenos Aires (AR))

Mazzitelli_bbZ.pdf

19:00 Conference dinner

Friday 11 October ¶

Plenary session¶

Convener: Thomas Becher (University of Bern)

79 Soft QCD in MC event generators, multi-parton interactions¶

Speaker: Jonathan Richard Gaunt (University of Manchester (GB))

QCD@LHC 2024 Gaunt.pdf

80 Soft QCD measurements, diffractive processes¶

Speaker: Dr Francesco Giuli (CERN)

FGiuli_QCD@LHC24.pdf

81 Status of QCD calculations for g-2 predictions¶

Speaker: Aida El-Khadra

El-Khadra.pdf

10:30 Coffee break

Plenary session¶

Convener: Stefan Dittmaier (University of Freiburg)

82 Concluding talk¶

Speaker: Stefano Forte (Università degli Studi e INFN Milano (IT))

freib24.pdf

QCD@LHC2025.pdf