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Standard Model at the LHC 2026

7–10 Apr 2026
Campus Luigi Einaudi, Torino, Italy
Europe/Rome timezone

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Contribution List

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  1. 39. Greetings from the Head of Physics Department and INFN Division
    Marco Maggiora (Istituto Nazionale di Fisica Nucleare), Paolo Gambino (Istituto Nazionale di Fisica Nucleare)
    07/04/2026, 14:00
  2. 89. Practical information
    Roberto Covarelli (Istituto Nazionale di Fisica Nucleare)
    07/04/2026, 14:20
  3. 80. Charting the polarisation structure of di-boson events at the LHC
    Giovanni Pelliccioli (Istituto Nazionale di Fisica Nucleare)
    07/04/2026, 14:30
  4. 81. EWK precision measurements at ATLAS, CMS, and LHCb
    Eirini Kasimi (Aristotle University of Thessaloniki)
    07/04/2026, 15:00
  5. 82. New single boson cross section measurements at ATLAS, CMS and LHCb
    Miguel Ramos Pernas (CERN)
    07/04/2026, 15:30
  6. 62. CMS: Rare b-hadron decays
    Federica Maria Simone (Istituto Nazionale di Fisica Nucleare)
    07/04/2026, 16:30
  7. 63. Predictions for inclusive rare B meson decays
    Enrico Lunghi (Indiana University), Enrico Lunghi
    07/04/2026, 16:55
  8. 64. LHCb: Rare b->sll and b->dll transitions including Lambda_b decays
    Camille Normand (IGFAE, USC)
    07/04/2026, 17:20
  9. 18. Reconciling hadronic and partonic analyticity in $b \to s \ell\ell$ transitions
    Simon Mutke (University of Bonn)
    07/04/2026, 17:45

    To search for physics beyond the Standard Model (BSM) some of the most promising and sensitive observables are constituted by flavour-changing neutral-current $B$-meson decays mediated by $b \to s \ell\ell$ transitions. While several hints for deviations from the Standard Model have emerged over the recent years, it has also become clear that a more thorough theoretical understanding of...

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  10. 40. Quark mass effects in single Higgs production
    Marco Niggetietd (Max-Planck-Institut für Astrophysik)
    08/04/2026, 09:00

    This contribution will present recent theory developments in Higgs boson production, in particular quark mass effects in Higgs production in gluon fusion. The impact of top-, bottom- and charm quark masses will be discussed, both in the on-shell and in the MSbar scheme. Furthermore, alternative treatments of quark masses, in particular in the four-flavour scheme, will be studied. (20'...

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  11. 43. New higher order correction to HH production
    Stephen Jones (Durham University)
    08/04/2026, 09:25

    The contribution will present recent theory developments related to precision calculations for Higgs boson pair production. In particular, it will give an update about the calculation of electroweak corrections to HH production in gluon fusion and about efforts to reduce the uncertainties related to the top quark mass scheme. (20' presentation + 5' discussion)

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  12. 42. Mapping the Higgs Potential with ATLAS and CMS: Latest Non-Resonant Run3 HH Results and combinations, Single-H Constraints, HHH Searches, and HL-LHC Projections. Experimental
    Cedrine Alexandra Hugli (DESY)
    08/04/2026, 09:50

    The contribution will present updated constraints on Higgs self-interactions obtained by ATLAS and CMS from Run-3 data and combined Run-2 HH measurements, including their interplay with single-Higgs results, highlighting the progressive improvement in HH sensitivity achieved by both collaborations. The current status and future sensitivity to triple-Higgs production will be reviewed, together...

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  13. 44. ESR talk: Higgs Boson plus Quark Pair Production at High Energies
    Giacomo Ruisi (DESY Zeuthen)
    08/04/2026, 10:15

    Higgs boson production in association with jets is a key process for precision tests of the Standard Model, particularly in the phase-space region selected by Vector Boson Fusion-type cuts, where large hierarchies between invariant masses and transverse momenta arise.
    In this kinematic regime, fixed-order perturbative predictions become insufficient and all-order resummation of high-energy...

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  14. 61. ESR talk: Search for rare radiative decays of the Higgs boson with the CMS experiment
    Edoardo Ferrando, Edoardo Ferrando (Istituto Nazionale di Fisica Nucleare)
    08/04/2026, 10:30

    One of the key goals of the LHC physics program is the precise determination of the Higgs boson couplings to fermions across all generations. While couplings to third-generation fermions have been established, those to light quarks remain largely unconstrained. Rare exclusive radiative decays of the Higgs boson, such as $H\to\rho/\phi/K^{*0}+\gamma$, provide a unique and direct probe of the...

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  15. 69. Frontier of precision computations in EFTs
    Jason Aebischer (PSI), Jason Aebischer (CERN)
    08/04/2026, 11:15
  16. 37. ZH production in gluon fusion at NLO QCD with SMEFT effects
    Benjamin Campillo (Karlsruhe Institut für Technologie)
    08/04/2026, 11:50

    Gluon-induced production of a Higgs boson in association with a Z-boson is an important Higgs production channel at the LHC. Precise theoretical predictions for this channel are therefore required, both within the Standard Model and beyond. Effects beyond the SM can be parametrised using the Standard Model Effective Field Theory (SMEFT).
    In this talk, we present the NLO QCD predictions...

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  17. 15. Tailored PDFs for new physics searches at the LHC
    Elie Hammou (Nikhef)
    08/04/2026, 12:05

    Indirect searches for new physics at the LHC increasingly rely on precision measurements in the high-energy tails of kinematic distributions, where uncertainties from Parton Distribution Functions (PDFs) are often a bottleneck. In this talk, I study the interplay between PDFs and Standard Model Effective Field Theory (SMEFT) interpretations in two key LHC sectors: Drell–Yan and top-quark...

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  18. 70. Scattering amplitude techniques in EFTs
    Yael Shadmi (Technion)
    08/04/2026, 12:20
  19. 54. Soft QCD and multi-parton interactions with the ATLAS and CMS experiments
    Ynyr Harris (University of Bonn)
    08/04/2026, 14:15
    QCD
  20. 55. Theory overview of MPI modeling
    Jonathan Gaunt (University of Cyprus)
    08/04/2026, 14:45
    QCD
  21. 56. Results on high-multiplicity pp collisions from ALICE, ATLAS and CMS
    Artem Kotliarov (Czech Academy of Sciences (CZ))
    08/04/2026, 15:15
    QCD
  22. 57. High-multiplicity fluctuations in jets
    Bryan Webber (University of Cambridge)
    08/04/2026, 15:45
    QCD
  23. 83. Multiboson measurements (including VBS) at ATLAS and CMS
    Trisha Debnath (CNRS LLR-Ecole Polytechnique)
    08/04/2026, 16:45
  24. 84. Mixed EWK-QCD corrections
    Federico Buccioni (TUM), Federico Buccioni (CERN)
    08/04/2026, 17:15
  25. 85. Precise predictions for multiboson processes
    Stefan Kallweit (University of Zurich (UZH)), Stefan Kallweit (University of Zurich)
    08/04/2026, 17:45
  26. 86. Measurement of ZZγ production with the ATLAS detector
    Anke Ackermann (Heidelberg University)
    08/04/2026, 18:15
  27. 65. LHCb: Semileptonic b->q l nu decays and non-leptonic B decays
    Alejandro Rodríguez Álvarez (University of Barcelona (ICCUB))
    09/04/2026, 09:00
  28. 66. Belle II: Latest developments on semileptonic (and rare) B decays
    Youngjoon Kwon (Yonsei University)
    09/04/2026, 09:25
  29. 67. Lattice QCD predictions for semileptonic B decays
    Oliver Witzel (University of Siegen)
    09/04/2026, 09:50
  30. 14. Search for the rare B_{s}^0 \to mu^+ mu^- mu^+ mu^- decays at CMS
    Marco Buonsante (Istituto Nazionale di Fisica Nucleare)
    09/04/2026, 10:15

    A search for the rare B_(s)^0 \to \mu^+ \mu^- \mu^+ \mu^- decays is presented using proton-proton collision data collected by the CMS experiment at \sqrt{s} = 13.6 TeV between 2022 and 2024, corresponding to an integrated luminosity of 170 fb^{-1}. These Cabibbo-suppressed flavor-changing neutral current processes are highly suppressed in the Standard Model and are sensitive to potential new...

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  31. 45. Constraining light Yukawa couplings
    Patrick Meade (Stony Brook University)
    09/04/2026, 11:00

    This contribution will review various ways that have been suggested to constrain light quark Yukawa couplings, for example through off-shell measurements of Higgs production or through Higgs+charm production. In addition, it will give an update about calculations that address constraints on the top-Yukawa coupling and CP-properties. (20' presentation + 5' discussion)

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  32. 47. Higgs decays to Heavy Flavor: H->bb, H->cc, H+b/c, bbH and Heavy-Flavor Tagging.
    Angela Zaza (Universita e INFN, Bari (IT))
    09/04/2026, 11:25

    The discovery of the Higgs boson ten years ago and successful measurement of the Higgs boson couplings to third generation fermions by ATLAS and CMS mark great milestones for HEP. The much weaker coupling to the second generation quarks predicted by the SM makes the measurement of the Higgs-charm coupling much more challenging. With the full run-2 data collected by the LHC experiments, a lot...

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  33. 48. Higgs boson quantum tomography
    Davide Pagani (INFN Bologna)
    09/04/2026, 11:50
  34. 74. Overview on recent high-precision fixed-order calculations
    Colomba Brancaccio (Istituto Nazionale di Fisica Nucleare)
    09/04/2026, 13:30
  35. 75. Top decays and the Monte-Carlo top quark mass
    Andre Hoang (University of Vienna)
    09/04/2026, 14:00
  36. 32. ESR: Two-loop scattering amplitude for $\bar{u}d \to t\bar{t} W^-$ in the leading color approximation
    Dhimiter Canko (University of Bologna and INFN)
    09/04/2026, 14:30

    I will present the computation of the two-loop scattering amplitude for the associated hadron production of a top pair and a $W$ boson, in the leading color approximation. This result contributes to the virtual part of the NNLO QCD corrections to this process. The amplitude is expressed in terms of a basis of special functions multiplied by kinematic-dependent rational coefficients. The...

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  37. 76. Precision ttbar cross section from ATLAS and CMS (including updates on the ttbar threshold)
    Claudia Glasman (Universidad Autonoma de Madrid), Claudia Glasman (Universidad Autonoma de Madrid)
    09/04/2026, 14:45
  38. 50. Flavoured jet algorithms
    Ludo Scyboz (Monash University)
    09/04/2026, 15:45
    QCD
  39. 51. Flavoured jet measurements from LHCb
    Manuel Ramírez García (University of Michigan)
    09/04/2026, 16:15
    QCD
  40. 52. Measurements of the b-jet Lund plane at ATLAS and CMS
    Dace Osite (Riga Technical University)
    09/04/2026, 16:45
    QCD
  41. 53. Charm-jet measurements at ALICE
    Preeti Dhankher Lesser (Nikhef)
    09/04/2026, 17:15
    QCD
  42. 58. Measurement of spin correlations induced by gluon polarization in parton showers with CMS
    Mingyang Zhu (ZJU - Zhejiang University (CN))
    09/04/2026, 17:45
    QCD
  43. 59. Precision Z+jet Production at the LHC: Angular and Polarization Effects with POWHEG and JETHAD
    Dr Francesco Giovanni Celiberto (UAH Madrid)
    09/04/2026, 18:00
    QCD

    Recent studies of inclusive Higgs-boson production at N$^3$LO have highlighted that high-energy QCD effects can induce corrections at the 10% level, motivating their careful assessment also in precision electroweak processes at the LHC. In this contribution we present new predictions for $Z/\gamma^*$ plus jet production, focusing on rapidity, transverse-momentum, and angular observables that...

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  44. 77. Recent measurements of free (B)SM parameters in ttbar events from ATLAS and CMS
    Bowen Zhang (University of Warwick (GB))
    10/04/2026, 09:00
  45. 78. Recent differential measurements of top+X production and rare SM top processes from ATLAS and CMS
    Barbara Alvarez Gonzalez (University of Oviedo), Barbara Alvarez Gonzalez (CERN)
    10/04/2026, 09:30
  46. 79. Overview of recent ttbar spin and entanglement results from ATLAS and CMS
    Andrew J Wildridge (Purdue Univ.), Andrew Wildridge
    10/04/2026, 10:00
  47. 25. ESR: Single top quark production as a precision probe of the CKM matrix and of the Electroweak top quark sector
    Francesco Confortini (Istituto Nazionale di Fisica Nucleare)
    10/04/2026, 10:30

    The top quark, as the most massive elementary particle, plays a crucial role in probing the electroweak sector and the flavour structure of the Standard Model (SM). Its decay hierarchy, dominated by the t → W b transition with highly sup- pressed t → W d/s channels, is governed by the Cabibbo-Kobayashi-Maskawa (CKM) matrix. Precision measurements of single-top quark production at the LHC offer...

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  48. 87. Impact of theory uncertainties in the extraction of precise EW measurements at the LHC
    Giulia Marinelli (Università & INFN Milano-Bicocca)
    10/04/2026, 11:15
  49. 88. Improved extraction of the weak mixing angle from recent CMS forward-backward asymmetry measurements at 13 TeV with additional PDF constraints from W and Z measurements
    Hyon San Seo (University of Rochester (US)), Hyon-San Seo
    10/04/2026, 11:45
  50. 1. NNLO QCD Predictions for Wγγ Production at the LHC
    Paolo Garbarino (University of Zurich (UZH))
    10/04/2026, 12:00

    Triboson production processes play a crucial role in probing the electroweak sector of the Standard Model (SM), as they involve quartic gauge-boson couplings already at the tree level. Moreover, they provide an irreducible background to other important SM processes. Despite the corresponding cross sections being much smaller than for diboson processes—extensively studied for triple gauge...

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  51. 4. Towards two-loop EW corrections in OpenLoops
    Lorenzo Mai (University of Genova & INFN)
    10/04/2026, 12:15

    At energies above the Electroweak (EW) scale, higher-order EW corrections exhibit a logarithmic enhancement which is driven by the ratio of the typical scattering energy to the gauge-boson mass. At next-to-leading order (NLO) these corrections lead to factors amounting to several tens of percent in tails of kinematic distributions of crucial LHC processes, and still contribute a few percent at...

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  52. 23. Towards two-loop EW corrections to the Drell-Yan process
    Tommaso Armadillo (Istituto Nazionale di Fisica Nucleare)
    10/04/2026, 12:30

    In the context of the precision physics programme at the HL-LHC and the FCC-ee, electroweak corrections will play a central role. In this talk, I will discuss recent developments in the computation of two-loop electroweak amplitudes to lepton-pair production. First, I will present the ultraviolet-renormalised and infrared-subtracted finite remainder of the two-loop amplitude in quantum...

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  53. 71. Dedicated EFT searches in ATLAS and CMS
    Mathieu Markovitch (IJCLab, Orsay), Mathieu Markovitch (Centre National de la Recherche Scientifique (FR))
    10/04/2026, 14:00
  54. 72. Global EFT fits across sectors in ATLAS and CMS
    Zhuoran Feng (IJCLab, Orsay)
    10/04/2026, 14:30
  55. 73. Prescriptions for EFT truncation uncertainties
    Francesco Montagno Bozzone, Markus Luty (UC Davis)
    10/04/2026, 15:00
  56. 16. Global SMEFT Analyses at NLO: Impact of RGE and Higher-Order Effects
    Riccardo Bartocci (Karlsruhe Institute of Technology (KIT))
    10/04/2026, 15:30

    The Standard Model (SM) of particle physics, despite its remarkable predictive success, is widely recognised as incomplete. Effective Field Theories (EFTs), and in particular the Standard Model Effective Field Theory (SMEFT), provide a systematic framework to parametrise possible effects of physics beyond the SM.
    In this talk, I review the consistent inclusion of higher-order effects,...

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  57. 9. Diboson production in the SMEFT at dimension-8
    Giuseppe Ventura (University of Manchester)
    10/04/2026, 15:45

    We present a comprehensive analysis of dimension-8 and dimension 6 effects in fully leptonic $WZ$ and $WW$ production at the Large Hadron Collider (LHC) within the Standard Model (SM) Effective Field Theory (SMEFT). We focus on dimension-8 operators with maximal energy growth in the quark–(anti)quark-initiated production channel and assess their impact differentially through a variety of...

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  58. 46. Experimental Status of ttH and tH: Latest precision Measurements and CP tests in the Top–Higgs Sector
    Nihal Brahimi (IN2P3/LAPP)
    10/04/2026, 16:30

    The contribution will review recent ATLAS and CMS measurements of Higgs production in association with two top quarks (ttH) and single top quark (tH), emphasizing latest Run-2 and early Run-3 results and combination where available, and the resulting constraints on the top–Higgs coupling, on CP violating contributions, and possible deviations from the Standard Model. (17' presentation + 5' discussion)

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  59. 41. Measuring the Higgs Boson Width at the LHC: Off-Shell H->ZZ/H->WW, ttH+four top, diphoton intereference. Experimental
    Ruben Gargiulo (Istituto Nazionale di Fisica Nucleare)
    10/04/2026, 16:55

    An important aspect of the Higgs boson physics programme at the LHC is to determine all the properties of this particle, including its width, which is directly linked to its lifetime. Deviations from the SM prediction of a narrow resonance might hint about unknown decays of the Higgs boson. This presentation will discuss the latest developments in measurements of the Higgs boson width, with...

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  60. 33. Detecting Traces of Light-Quark Yukawa Couplings to the Higgs Boson in Fragmentation Products
    Johannes Michel (Nikhef/University of Amsterdam)
    10/04/2026, 17:20

    I point out that Yukawa interactions of light quarks with the Higgs boson are imprinted as unique azimuthal modulations in the density of fragmentation hadrons relative to the Higgs $p_T$. I introduce Yukawa Fragmentation Asymmetries (YFAs), cut-and-count interference observables that are linearly proportional to real (Standard Model) or CP-odd Yukawa couplings $y_q$, respectively. The...

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  61. 68. ATLAS: Leptonic decays, spectroscopy and CPV (Flavour)
  62. 49. Early Stage Researcher Talk #2
  63. 19. Higgs Boson plus Quark Pair Production at High Energies
    Giacomo Ruisi (DESY Zeuthen)

    Higgs boson production in association with jets is a key process for precision tests of the Standard Model, particularly in the phase-space region selected by Vector Boson Fusion-type cuts, where large hierarchies between invariant masses and transverse momenta arise.
    In this kinematic regime, fixed-order perturbative predictions become insufficient and all-order resummation of high-energy...

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  64. 60. Improved extraction of the weak mixing angle from recent CMS forward-backward asymmetry measurements at 13 TeV with additional PDF constraints from W and Z measurements
    Hyon-San Seo

    We present an improved extraction of the effective leptonic weak mixing angle based on the CMS measurement of the forward–backward asymmetry in Drell–Yan dilepton production at 13 TeV, enhanced by additional constraints from W-boson charge asymmetry and W/Z cross-section measurements. The original CMS extraction, performed with different modern parton distribution functions (PDFs), shows a...

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  65. 12. Measurement of spin correlations induced by gluon polarization in parton showers with CMS
    Jose Enrique Palencia Cortezon (Universidad de Oviedo)

    A study of angular correlations arising from gluon polarization effects inside jets is performed using proton-proton collisions at a center-of-mass energy of √s = 13.6 TeV. The data collected in 2022 with the CMS detector at the LHC. The details of the parton shower are investigated using jets reconstructed with the anti-kT algorithm and declustered with the Cambridge–Aachen algorithm. The...

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  66. 36. Measurement of ZZγ production with the ATLAS detector
    ATLAS Speaker

    The Standard Model of particle physics predicts the rare production of triboson final states, offering a unique probe of gauge boson self-interactions and sensitivity to anomalous quartic gauge couplings. We present the measurement of ZZγ production, utilizing the large dataset collected by the ATLAS detector during Run 2. The analysis focuses on the fully leptonic final state, pp→ZZγ...

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  67. 28. Search for rare radiative decays of the Higgs boson with the CMS experiment
    Jose Enrique Palencia Cortezon (Universidad de Oviedo)

    One of the key goals of the LHC physics program is the precise determination of the Higgs boson couplings to fermions across all generations. While couplings to third-generation fermions have been established, those to light quarks remain largely unconstrained. Rare exclusive radiative decays of the Higgs boson, such as H → ρ/ϕ/K*⁰ + γ, provide a unique and direct probe of the Yukawa couplings...

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