Showing 141 - 160 results of 340 for search 'Matrix element (physics)', query time: 0.09s Refine Results
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    Monte Carlo Event Generator updates, for tau pair events at Belle II energies by Sw. Banerjee, D. Biswas, T. Przedzinski, Z. Was

    Published 2025-07-01
    “…An effort for adaptation of the system for precision data to be collected at Belle II experiment lead to extension of phase space generation modules both in photos and tauola to enable decays and/or radiative corrections of additional light lepton pairs. The phase-space and matrix element parts of the programs are separated, that is why extension to processes where lepton pair is produced through narrow resonances, like dark photon, was straight forward. …”
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  5. 145

    Interference effects in resonant di-Higgs production at the LHC in the Higgs singlet extension by Finn Feuerstake, Elina Fuchs, Tania Robens, Daniel Winterbottom

    Published 2025-04-01
    “…In order to allow for a computationally efficient treatment of these effects via reweighting, we introduce a new tool utilising a matrix-element reweighting method: HHReweighter. In addition to the broadly used di-Higgs invariant mass m hh , we analyse the sensitivity to the interference terms for other kinematic variables, such as the Higgs boson transverse momentum, and find that these also can be sensitive to interference effects. …”
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    Disentangling left-handed and right-handed neutrino effects in B c → τ ν ¯ τ $$ {B}_c\to \tau {\overline{\nu}}_{\tau } $$ decay by Quan-Yi Hu

    Published 2024-12-01
    “…Finally, in order to eliminate the uncertainties brought by the CKM matrix element V cb and the decay constant f B c $$ {f}_{B_c} $$ , we introduce the normalized distributions dΓ/(ΓdE a ) (a = π, ρ, μ, e), which are only sensitive to the right-handed neutrinos. …”
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    Boundary quantum field theories perturbed by TT‾: Towards a form factor program by Olalla A. Castro-Alvaredo, Stefano Negro, Fabio Sailis

    Published 2025-08-01
    “…In this paper we discuss how all these features extend to boundary integrable quantum field theories and propose a construction for the building blocks of matrix elements of local fields. We show that the same type of building blocks are also found in the sinh-Gordon model with Dirichlet boundary conditions.…”
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    Constraints on non-unitary neutrino mixing in light of atmospheric and reactor neutrino data by Tetiana Kozynets, Philipp Eller, Alan Zander, Manuel Ettengruber, D. Jason Koskinen

    Published 2025-05-01
    “…From the Bayesian posteriors on the individual mixing matrix elements, we derive the non-unitarity constraints in the form of normalisations and closures of the mixing matrix rows and columns, assuming either a fully unconstrained matrix or a physically motivated submatrix scenario. …”
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  14. 154

    Four-loop splitting functions in QCD – the gluon-gluon case – by G. Falcioni, F. Herzog, S. Moch, A. Pelloni, A. Vogt

    Published 2025-01-01
    “…We have computed the even-N moments N≤20 of the gluon-gluon splitting function Pgg at the fourth order of perturbative QCD via the renormalization of off-shell operator matrix elements. Our results, derived analytically for a general compact simple gauge group, agree with all results obtained for this function so far, in particular with the lowest five moments obtained via structure functions in deep-inelastic scattering. …”
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    Quantum phase transition of infrared radiation by Bartosz Biadasiewicz, Wojciech Dybalski

    Published 2025-04-01
    “…We also determine the singular behaviour of some S-matrix elements near the critical point r = 0.…”
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    Reexamining circular dichroism in photoemission from a topological insulator by Ittai Sidilkover, Yun Yen, Sunil Wilfred D'Souza, Jakub Schusser, Aki Pulkkinen, Costel R. Rotundu, Makoto Hashimoto, Donghui Liu, Zhi-Xun Shen, Ján Minár, Michael Schüler, Hadas Soifer, Jonathan A. Sobota

    Published 2025-07-01
    “…Meanwhile, it is well-established that CD originates from the photoemission matrix elements, which can have extrinsic contributions related to the experimental geometry and the inherently broken inversion symmetry at the sample surface. …”
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