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