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BOOST 2024 - 16th International Workshop on Boosted Object Phenomenology, Reconstruction, Measurements, and Searches at Colliders

29 July 2024 to 2 August 2024
Genova, Italy
Europe/Rome timezone

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Session

Electroweak, Higgs and Top

31 Jul 2024, 16:20
Palazzo Ducale (Genova, Italy)

Palazzo Ducale

Genova, Italy

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  1. 74. An approach to pin down the top quark mass parameter in MC event generators
    Andre Hoang (University of Vienna)
    31/07/2024, 16:20
    Electroweak, Higgs and Top
    Talk

    To control the scheme of the Monte-Carlo (MC) top quark mass parameter several ingredients are mandatory, concerning the knowledge of the IR dynamics of the top mass sensitive observable, the MC parton shower and the MC hadronization evolution. I discuss these ingredients and their interplay for the simple case of 2-jettiness for boosted top production in electron-positron annihilation, where...

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  2. 40. Interpretation of the MC top mass parameter with the soft-dropped groomed jet mass
    Naseem Bouchhar (IFIC (UV/CSIC) Valencia)
    31/07/2024, 16:40
    Electroweak, Higgs and Top
    Talk

    In this contributions we will present new results that relate the top quark mass parameter in Monte Carlo generators with a field-theoretical mass scheme. In our study, Pythia8 predictions for the groomed top jet mass distribution in pp -> ttbar production are compared with first-principle calculations at NNLL accuracy. The formal accuracy is improved (from NLL to NNLL) with respect to...

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  3. 44. Using the $W$ as a Standard Candle to Reach the top
    Aditya Pathak (DESY)
    31/07/2024, 17:00
    Electroweak, Higgs and Top
    Talk

    Precision measurements of the top quark mass at hadron colliders have been notoriously difficult. Energy-energy correlators (EECs) provide clean access to angular correlations in the hadronic energy flux, but their application to the precision mass measurements is less direct since they measure a dimensionless angular scale.

    Inspired by the use of standard candles in cosmology, I will show...

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  4. 24. Determination of Higgs boson properties and searches for new resonances using highly boosted objects with the ATLAS experiment
    Kunlin Ran
    31/07/2024, 17:20
    Electroweak, Higgs and Top
    Talk

    Detailed measurements of Higgs boson properties can be performed using highly boosted objects, where the detector signatures of two or more decay products overlap. The talk will present several ATLAS analyses targeting these topologies, using collision data collected during Run 2 of the LHC. The talk will present studies of the properties of Higgs boson production at high transverse momentum,...

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  5. 19. Top-quark jet substructure measured with the ATLAS detector
    mario campanelli (UCL)
    31/07/2024, 17:40
    Electroweak, Higgs and Top
    Talk

    The large production cross section of top-quark pairs at the LHC allows for detailed studies of the substructure of jets arising from light quarks, b-quarks, and gluons. In this talk, recent measurements of the jet substructure in the decay products of top quarks performed by the ATLAS experiment are presented, using the reconstructed charged particles in the decay of W bosons and the...

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  6. 69. How to Unfold Top Decays
    Sofia Palacios Schweitzer (ITP, Heidelberg University)
    31/07/2024, 18:00
    Electroweak, Higgs and Top
    Talk

    Unfolded data can be used to measure the top mass, but also to search for unexpected kinematic correlations in top decay events. We show how generative unfolding can be used for both tasks and how the results benefit from the unbinned, high-dimensional unfolding. Our method includes an unbiasing step with respect to the top mass used during training data and promises significant advantages...

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