2025-05-14
17:29 |
レコードの詳細
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2025-05-14
17:26 |
レコードの詳細
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2025-05-14
17:22 |
レコードの詳細
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2025-05-14
17:22 |
レコードの詳細
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2025-05-14
17:22 |
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Search for H→cc via ttH production at CMS
/ Wuchterl, Sebastian (speaker) (CERN)
A search for the standard model Higgs boson decaying to a charm quark-antiquark pair, H→cc, produced in association with a top quark-antiquark pair (ttH) is presented, using the LHC Run 2 dataset collected by the CMS experiment.
Advanced machine learning techniques are employed for jet flavor identification and event classification.
A simultaneous fit is performed to extract the signal strengths of ttH and ttZ production with decays to both cc and bb.
The obtained results are combined with the previous search for H→cc via associated production with a W or Z boson, setting the most stringent constraints to date on the charm Yukawa coupling.
Refreshments will be served at 10h30
2025 - 3683.
LHC Seminar
External link: Event details
In : Search for H→cc via ttH production at CMS
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2025-05-14
09:21 |
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Revisiting the theory of spin correlations and entanglement in top pair production at the LHC
/ Nason, Paolo (speaker)
Recent ATLAS and CMS studies of spin correlations and entanglement in top pair production at hadron colliders have evidenced some inadequacy in the current modeling of the process of top pair production and decay. It has been argued that one needs to include the effect of a very short-lived $t{\bar t}$ pseudoscalar bound state to reconcile the data with the theoretical prediction. [...]
2025 - 4423.
QCD Seminars
External link: Event details
In : Revisiting the theory of spin correlations and entanglement in top pair production at the LHC
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2025-05-08
15:52 |
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Topological operators, branes, and gravity
/ Bah, Ibrahima (speaker) (Johns Hopkins University)
In this talk, we discuss the origins of topological operators in field theory from holography and string theory. In particular, we demonstrate how the physics of branes can capture the many interesting aspects of topological operators [...]
2025 - 4313.
Theory Colloquia
External link: Event details
In : Topological operators, branes, and gravity
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2025-05-07
15:42 |
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Exact chiral symmetries of Hamiltonian lattice fermions in 3+1d
/ Thorngren, Ryan (speaker) (UCLA)
We will discuss methods of circumventing the fermion doubling problem in 3+1d Hamiltonian lattice models. In particular, we will construct a 3+1d model with a single Weyl fermion and an exact UV symmetry which implies the conservation of chiral charge in the IR [...]
2025 - 4388.
TH String Theory Seminar
External link: Event details
In : Exact chiral symmetries of Hamiltonian lattice fermions in 3+1d
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2025-05-07
08:57 |
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Latest results from KATRIN: neutrino mass and beyond
/ Valerius, Kathrin (speaker) (KIT)
The Karlsruhe Tritium Neutrino experiment (KATRIN) probes the absolute neutrino mass scale with sub-electronvolt sensitivity by precisely measuring the endpoint region of the tritium beta-decay spectrum. KATRIN combines a high-intensity gaseous tritium source and a high-resolution electrostatic spectrometer with magnetic collimation [...]
2025 - 3908.
EP Seminar
External link: Event details
In : Latest results from KATRIN: neutrino mass and beyond
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2025-05-05
08:55 |
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The atomic nucleus as a window to new physics
/ Holt, Jason (speaker)
Answers to some of the most fundamental questions in science, such as the mass and character of the neutrino, the nature of dark matter, or the abundance of matter over antimatter, might very well reside in the physics of the atomic nucleus. As the role of nuclei in unraveling such mysteries continues to deepen, first-principles quantum simulations, beginning from only underlying nuclear/weak forces, are currently undergoing nothing short of a revolution. [...]
2025 - 4453.
Theory Colloquia
External link: Event details
In : The atomic nucleus as a window to new physics
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