Conveners
Electroweak and Top Quark Physics
- There are no conveners in this block
Electroweak and Top Quark Physics
- There are no conveners in this block
Electroweak and Top Quark Physics
- Matteo Defranchis (CERN)
- Miguel Ramos Pernas (CERN)
- Joany Manjarres (Universitรฉ de Toulouse, CNRS/IN2P3, L2IT, Toulouse, France)
- Francesco Giuli (INFN e Universita Roma Tor Vergata (IT))
- Emilie Passemar
- Jorge de Blas (Universidad de Granada (ES))
Electroweak and Top Quark Physics
- Jorge de Blas (Universidad de Granada (ES))
- Matteo Defranchis (CERN)
- Emilie Passemar
- Miguel Ramos Pernas (CERN)
- Francesco Giuli (INFN e Universita Roma Tor Vergata (IT))
- Joany Manjarres (Universitรฉ de Toulouse, CNRS/IN2P3, L2IT, Toulouse, France)
Electroweak and Top Quark Physics
- Jorge de Blas (Universidad de Granada (ES))
- Miguel Ramos Pernas (CERN)
- Joany Manjarres (Universitรฉ de Toulouse, CNRS/IN2P3, L2IT, Toulouse, France)
- Francesco Giuli (INFN e Universita Roma Tor Vergata (IT))
- Matteo Defranchis (CERN)
- Emilie Passemar
Electroweak and Top Quark Physics
- Joany Manjarres (Universitรฉ de Toulouse, CNRS/IN2P3, L2IT, Toulouse, France)
- Miguel Ramos Pernas (CERN)
- Jorge de Blas (Universidad de Granada (ES))
- Emilie Passemar
- Francesco Giuli (INFN e Universita Roma Tor Vergata (IT))
- Matteo Defranchis (CERN)
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Samadhan Kamble (Indian Institute of Technology Madras (IN))31/07/2026, 14:30Electroweak and Top Quark PhysicsTalk
High precision measurements of top quark pair production are crucial to advance our understanding of perturbative and soft QCD and provide a deeper understanding of the partons inside the proton. In this talk, recent highlights in top quark pair and single top production at different center-of-mass energies will be discussed.
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Laurids Jeppe (CERN)31/07/2026, 14:45Electroweak and Top Quark PhysicsTalk
Since the start of the LHC, pinning down the properties of top quarks has been a vital point of the LHC research program. Only recently, it was understood how top-quark properties can even be used to probe quantum properties and other properties. In this talk, recent CMS measurements of top-quark properties and their interpretation in terms of quantum measurements will be discussed, as well as...
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Riccardo Salvatico (CERN)31/07/2026, 15:00Electroweak and Top Quark PhysicsTalk
The talk reviews the measurements and new interpretations of four-top production, rare top quark processes, and rare top quark decays, covering those predicted by the SM and also beyond.
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Sven Menke (Max Planck Society (DE))31/07/2026, 15:15Electroweak and Top Quark PhysicsTalk
The LHC produces a vast sample of top quark pairs and single top quarks. Measurements of the inclusive top quark production rates at the LHC have reached a precision of several percent and test advanced Next-to-Next-to-Leading Order predictions in QCD. Differential measurements in several observables are important to test SM predictions and improve Monte Carlo generator predictions. In this...
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Mark Owen (University of Glasgow (GB))31/07/2026, 15:30Electroweak and Top Quark PhysicsTalk
The top-quark mass is one of the key fundamental parameters of the Standard Model that must be determined experimentally. Its value has an important effect on many precision measurements and tests of the Standard Model. In this contribution, the top quark mass measurements by the ATLAS experiment are reviewed. These include measurements in two broad categories, the direct measurements, where...
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Shayma Wahdan (Bergische Universitaet Wuppertal (DE))31/07/2026, 15:45Electroweak and Top Quark PhysicsTalk
The high center-of-mass energy of proton-proton collisions and the large datasets collected at the CERN Large Hadron Collider (LHC) offer a unique opportunity to study rare processes within the Standard Model (SM) with unprecedented precision. Measuring rare SM processes, such as associated production of the top quarks with other particles, not only provides rigorous tests of SM predictions...
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Guennadi Borissov (Lancaster University (GB))31/07/2026, 16:00Electroweak and Top Quark PhysicsTalk
The wealth of data collection by the Large Hadron Collier has opened the door to new measurements of top quark properties including those particularly sensitive to the ttbar threshold region, such as the effects of the quasi-bound states contribution, which were previously beyond reach. This contribution presents the latest highlights in this area from the ATLAS experiment.
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Eleanor Jones (Deutsches Elektronen-Synchrotron (DE))31/07/2026, 16:45Electroweak and Top Quark PhysicsTalk
Due to its large mass, the top quark has properties that make it unique among the other quarks. The large dataset provided by the Large Hadron Collider allows it to measure several properties of the top quarks, such as spin-correlations, with a high precision, providing a crucial test of the Standard Model predictions. This contribution presents the latest measurements of the top quark...
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Timothee Theveneaux-Pelzer (CPPM, Aix-Marseille Universitรฉ, CNRS/IN2P3 (FR))31/07/2026, 17:00Electroweak and Top Quark PhysicsTalk
Several measurements and searches involving top quarks are limited by the uncertainties related to the modelling of the top-quark pair events. In this contribution, recent updates on the modelling of the top-quark pair events will be discussed. These include the higher order precision in the production using the MiNNLO generator as well as non-resonant and off-shell effect modelled with the...
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Alberto Belvedere (ETH Zurich (CH))31/07/2026, 17:15Electroweak and Top Quark PhysicsTalk
The large center-of-mass energy of the LHC and its total integrated luminosity opens the window to high precision measurements of electroweak and associated production modes of the top quark. These processes are crucial to the study of the couplings of the top quark and the electroweak bosons. In this talk, we present the most recent inclusive and differential measurements of these processes.
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Justin Marquez (University of Wisconsin (US))31/07/2026, 17:30Electroweak and Top Quark PhysicsTalk
Measurements of processes involving multiboson final states constitute a precision test of the Standard Model. Moreover, discrepancies between theoretical predictions and experimental measurements could hint to new physics through the presence of anomalous gauge couplings. These processes are also dominant backgrounds for Higgs boson measurements, and searches for new particles with diboson...
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Shilpi Jain (Tata Institute of Fundamental Research (IN))31/07/2026, 17:45Electroweak and Top Quark PhysicsTalk
Vector boson scattering is a key production process to probe the electroweak symmetry breaking of the standard model, since it involves both self-couplings of vector bosons and coupling with the Higgs boson. If the Higgs mechanism is not the sole source of electroweak symmetry breaking, the scattering amplitude deviates from the standard model prediction at high scattering energy. Moreover,...
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Greg Myers (University of Michigan (US))31/07/2026, 18:00Electroweak and Top Quark PhysicsTalk
Measurement of diboson production enters a precision era along with the accumulation of LHC data and therefore leads to an unprecedented scrutiny of theoretical modelling of the production as well as multiboson interaction vertices. This talk will present the recent precision diboson measurements from ATLAS and discuss the physics impact and prospects.
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Muhammad Alhroob (University of Warwick)31/07/2026, 18:15Electroweak and Top Quark PhysicsTalk
Measurement of rare electroweak processes such as vector boson scattering and triboson provides a unique test of the Standard Model electroweak theory and offers a complementary approach to study the electroweak symmetry breaking as well as anomalous quartic boson interactions. This talk will present the recent measurements in this sector from ATLAS and discuss the physics impact and prospects.
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Olivier Arnaez (Centre National de la Recherche Scientifique (FR))01/08/2026, 08:30Electroweak and Top Quark PhysicsTalk
Measurement of polarization states in diboson production offers an important, new avenue to probe the inner structure of electroweak interactions, and in particular gain sensitivity to study electroweak symmetry breaking and goldstone boson equivalence theorem. This talk will present the recent attempts in ATLAS to observe different diboson polarisation states in ATLAS and discuss the physics...
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Menglin Xu (CERN)01/08/2026, 08:45Electroweak and Top Quark PhysicsTalk
Measurements of W bosons at LHCb exploit the experimentโs forward acceptance to probe the electroweak interaction in a phase space complementary to that of the central LHC detectors. The large data samples collected in protonโproton collisions at 13 TeV enable detailed studies of both the production and decay characteristics of the W boson in a previously unexplored rapidity region....
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Dennis Roy (Kansas State University (US))01/08/2026, 09:00Electroweak and Top Quark PhysicsTalk
An overview of the rare vector boson decays is presented using Run 2 and Run 3 data collected by the CMS experiment.
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Vladislav Shalaev (Joint Institute for Nuclear Research (RU))01/08/2026, 09:15Electroweak and Top Quark PhysicsTalk
This talk presents the latest precision measurements of the W and Z boson production using data collected by the CMS experiment. New results include the measurements of production angular coefficients as well as the measurement of the alpha-s coupling. These results are among the most precise carried out at hadron colliders, and are fundamental to characterize the production and decay cross...
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704. Measurement of Spin and Quantum Correlations in $Z \to \tau^+ \tau^-$ Decays at LEP with DELPHICen Mo (Shanghai Jiao Tong University (CN))01/08/2026, 09:30Electroweak and Top Quark PhysicsTalk
Precision studies of $ฯโบฯโป$ production at the Z pole provide a clean environment for investigating electroweak spin correlations and quantum information observables. Using archived LEP-1 data collected by the DELPHI experiment, the process $eโบeโป โ Z โ ฯโบฯโป$ is well measured, but the presence of multiple neutrinos in $ฯ$ decays limits reconstruction of the $ฯ$-pair rest frame. This constrains...
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Bennie Ward (Baylor University (US))01/08/2026, 09:45Electroweak and Top Quark PhysicsTalk
We present an overview and update for the {\tt KKMCee 5.00.2} Monte Carlo event generator for lepton and quark pair production in high-energy electron-positron annihilation processes. We note that it is still the most sophisticated event generator for such processes. Its entire source code is rewritten in the modern C++ language and it reproduces all features of the older KKMC code in Fortran...
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Andrea Piccinelli (University of Notre Dame (US))01/08/2026, 10:45Electroweak and Top Quark PhysicsTalk
The Standard Model Effective Field Theory (SMEFT) provides a universal language for testing beyond the Standard Model physics at LHC scales. With increasing complexity and new sophisticated techniques, the sensitivity of these analyses gradually increases. In this talk, recent searches for anomalous couplings in the top quark sector from CMS will be presented. The new results significantly...
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Sylvia Louise Mason (Columbia University (US))01/08/2026, 11:00Electroweak and Top Quark PhysicsTalk
Many-parameter fits to precise measurements in the framework of the Standard Model Effective Field Theory are becoming a standard interpretation of LHC and other collider data. In this contribution an overview is given of state-of-the-art EFT interpretations in ATLAS with particular emphasis on results in the top quark sector.
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Victor Miralles (University of Alicante)01/08/2026, 11:15Electroweak and Top Quark PhysicsTalk
We present results from a global fit of dimension-six SMEFT operators
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that includes electroweak, Higgs-boson, top-quark, and flavor
observables. The leading-order scale dependence of the SMEFT Wilson
coefficients is consistently included in the evolution from the UV
scale to the electroweak scale and the low-energy scale of flavor
observables. The global fit is obtained within the HEPfit... -
Prof. Alexander Belyaev (University of Southampton & Rutherford Appleton Laboratory)01/08/2026, 11:30Electroweak and Top Quark PhysicsTalk
The Fermionic Portal to Vector Dark Matter (FPVDM) framework generically predicts six-fermion final states arising from pair production of heavy vector-like fermions followed by cascade decays through a dark gauge sector. In the top-portal realisation (TPVDM), this structure leads to a distinctive six-top final state, which is essentially background-free and persists across almost the entire...
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Oleksandr Zenaiev (Hamburg University)01/08/2026, 11:45Electroweak and Top Quark PhysicsTalk
We study bound-state effects in top-quark pair production close to threshold at the LHC, where sensitivity to non-relativistic dynamics has recently become accessible. Working within the non-relativistic QCD (NRQCD) framework, we assess the theoretical uncertainties affecting predictions for the top-quark pair invariant-mass distribution. We consider variations of the top-quark mass and width,...
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Ella Cole (University of Cambridge (GB))01/08/2026, 12:00Electroweak and Top Quark PhysicsTalk
In this talk, I explore the interplay between the fits of Standard Model Effective Field Theory (SMEFT) Wilson coefficients and PDFs in two key sectors at the LHC, the Drell-Yan and the top sector.ย I explore two complementary strategies for robust new physics searches: (i) fitting the PDFs and SMEFT parameters simultaneously, and (ii) fitting them separately with a โconservativeโ...
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Bennie Ward (Baylor University (US))01/08/2026, 12:15Electroweak and Top Quark PhysicsTalk
We present new results using collinearly enhanced YFS IR resummation theory that includes all of the attendant collinear contributions which exponentiate. The new results are realized in the context of the KKMChh MC, where the attendant new resummed contributions have been shown to agree with known results from the collinear factorization approach. We argue that they improve the corresponding...
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Matteo Defranchis (CERN)01/08/2026, 14:30Electroweak and Top Quark PhysicsTalk
The electron-positron stage of the Future Circular Collider (FCC-ee) will provide measurements of the Z and W bosons couplings and masses 1--3 orders of magnitude better than the present state-of-the-art. In the Z pole run, with integrated luminosities about six orders of magnitude larger than at LEP, the Z boson mass and width, $Z \to b\bar{b}$ partial width, and the forward-backward...
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Laura Pintucci (Universita degli Studi di Udine (IT))01/08/2026, 14:45Electroweak and Top Quark PhysicsTalk
Electron-positron collisions at the leptonic mode of the Future Circular Collider (FCC-ee) will offer an unprecedented opportunity to study electroweak interactions with extreme precision through measurements at the $Z$ pole. In this context, forwardโbackward asymmetries of charm, strange, and bottom quarks constitute powerful observables for probing the vector and axial-vector nature of...
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Ivanka Bozovic-Jelisavcic (University of Belgrade (RS))01/08/2026, 15:00Electroweak and Top Quark PhysicsTalk
The linear option for a future eโบeโป collider facility at CERN, with its extended energy reach and polarized beams, offers unique opportunities for precision electroweak studies and investigations of the top-quark sector. Beam polarization enhances the sensitivity to key processes, improves background suppression, and allows for a significant reduction of systematic uncertainties.
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The extended... -
Krzysztof Mekala01/08/2026, 15:15Electroweak and Top Quark PhysicsTalk
Monte Carlo (MC) event generators are central to data analyses at the LHC and will remain equally important for future colliders operating at high energies and luminosities. With a Higgs factory on the horizon and ongoing studies of the physics potential of multi-TeV machines, continuous development of MC generators is required to match the projected experimental precision.
We present a...
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Krzysztof Mekala01/08/2026, 15:30Electroweak and Top Quark PhysicsTalk
Electroweak precision measurements provide stringent tests of the Standard Model and are highly sensitive probes of new physics. Precise determinations of the Z-boson couplings to first-generation quarks, which are weakly constrained mainly by LEP data, could reveal deviations from theoretical predictions. Future colliders operating at the Z pole would offer an excellent environment for such...
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Andrej Arbuzov (Joint Institute for Nuclear Research)01/08/2026, 15:45Electroweak and Top Quark PhysicsTalk
Recent advances in QED parton density and fragmentation functions are described. Analytic expressions for these functions are derived by solving QED DGLAP evolution equations in the next-to-leading logarithmic approximation. Higher-order radiative corrections due to initial-state radiation in processes of electron-positron annihilation are calculated and implemented into the ZFITTER code. The...
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Bennie Ward (Baylor University (US))01/08/2026, 16:00Electroweak and Top Quark PhysicsTalk
While the LEP precision physics requirements on the theoretical precision tag for the respective luminosity were 0.054 % (0.061%) at $M_Z$, where the former (latter) LEP result has (does not have) the pairs correction, for the contemplated FCC-ee, CEPC, and ILC Higgs/EW factories, one needs improvement at $M_Z$ to at least 0.0001% for the theoretical precision tag for the first two of the...
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Krzysztof Mekala01/08/2026, 16:45Electroweak and Top Quark PhysicsTalk
The Future Circular Collider (FCC) programme provides unique opportunities for comprehensive and precise studies of top quark physics. At the FCC-ee, operating at and slightly above the top pair threshold, a precise measurement of the top quark mass with a statistical and systematic accuracy down to the MeV level can be achieved through a threshold scan. Furthermore, the FCC-ee run at 365 GeV...
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Nestor Armesto Perez01/08/2026, 17:00Electroweak and Top Quark PhysicsTalk
The LHeC is the proposal to deliver electron-proton/nucleus collisions at CERN using the LHC beams and 50 GeV electrons from an Energy Recovery Linac. Initially foreseen [1] for concurrent electron-hadron/hadron-hadron operation, a standalone electron-hadron operation phase has been proposed [2] considering the current LHC schedule. Thus, the LHeC becomes a bridge from HL-LHC to the next...
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Laurent Forthomme (AGH University of Krakow (PL))01/08/2026, 17:15Electroweak and Top Quark PhysicsTalk
An overview of the prospects for unique studies of photon-photon interactions at LHeC will be presented. Profiting from the clean experimental environment and high luminosity at the LHeC, it will be possible to conduct stringent tests of electroweak interactions as well as meaningful searches for possible deviations from Standard Model. In particular, the cases of two-photon production of...
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Victor Gonรงalves (Universidade Federal de Pelotas)01/08/2026, 17:30Electroweak and Top Quark PhysicsTalk
Over the last decades, the theoretical treatment and the experimental investigation of the $c\bar{c}$ and $b\bar{b}$ bound states have been largely advanced. In contrast, signals of a toponium state, formed by a top and an antitop quark, were only recently observed in $pp$ collisions at the LHC in inclusive processes, characterized by the fragmentation of the incident protons. In this...
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Roberto Tenchini (Universita & INFN Pisa (IT))01/08/2026, 17:45Electroweak and Top Quark PhysicsTalk
The MUonE experiment, now under development at CERN, aims to determine the leading-order hadronic vacuum polarization contribution to the muon's anomalous magnetic moment via a new, independent method. Similar hadronic effects contribute to the running of the QED coupling $\alpha$, which can be extracted from a precise measurement of the shape of the differential cross section for elastic...
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Help4CERN01/08/2026, 18:00Electroweak and Top Quark PhysicsTalk
We will present the Higgs-Electroweak-Top (HET) physics potential of the proposed LH$\mu$C, an anti-muon-hadron collider at CERN [1,2]. By combining multi-TeV centre-of-mass energy with high luminosity, LH$\mu$C offers excellent conditions for exploring the HET physics. In the talk, we will report benchmark inclusive cross sections for Higgs production and for key top-quark processes, and...
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Justin Marquez (University of Wisconsin (US))Electroweak and Top Quark PhysicsTalk