Results 41 to 50 of about 5,314,348 (335)

Quantum Model Averaging [PDF]

, 2014
Standard tomographic analyses ignore model uncertainty. It is assumed that a given model generated the data and the task is to estimate the quantum state, or a subset of parameters within that model.
Ferrie, Christopher
core   +1 more source

Addressing the CKM unitarity problem with a vector-like up quark

Journal of High Energy Physics, 2021
We point out that hints of deviations from unitarity in the first row of the CKM matrix may be explained by the presence of a single vector-like top. We study how the stringent experimental constraints arising from CP Violation in the kaon sector and ...
G. C. Branco, J. T. Penedo, Pedro M. F. Pereira, M. N. Rebelo, J. I. Silva-Marcos   +4 more
doaj   +1 more source

Implications of Higgs discovery for the strong CP problem and unification

Journal of High Energy Physics, 2018
A Z 2 symmetry that extends the weak interaction, SU(2) L → SU(2) L ×SU(2)′, and the Higgs sector, H(2) → H(2, 1) + H ′(1, 2), yields a Standard Model quartic coupling that vanishes at scale v ′ = 〈H ′〉 ≫ 〈H〉.
Lawrence J. Hall, Keisuke Harigaya
doaj   +1 more source

Controlled fermion mixing and FCNCs in a ∆(27) 3+1 Higgs Doublet Model

Journal of High Energy Physics, 2021
We propose a 3+1 Higgs Doublet Model based on the ∆(27) family symmetry supplemented by several auxiliary cyclic symmetries leading to viable Yukawa textures for the Standard Model fermions, consistent with the observed pattern of fermion masses and ...
A. E. Cárcamo Hernández, Ivo de Medeiros Varzielas, M. L. López-Ibáñez, Aurora Melis   +3 more
doaj   +1 more source

Heavy particles and the ϱ parameter in the standard model [PDF]

Nuclear Physics B, 1981
Abstract A new formalism is presented for the calculation of the contribution δϱ to ϱ = Mw2/Mz2cos2θw from heavy particles transforming according to arbitrary representations of SU(2) × U(1). A conjecture for the necessary and sufficient conditions that δϱ⩾0 for all values of masses and mixing angles within a particular multiplet is formulated.
Einhorn, Martin B., Jones, D. R. T., Veltman, M. J. G.   +2 more
openaire   +3 more sources

Isospin-violating vacuum polarization in the muon (g − 2) with SU(3) flavour symmetry from lattice QCD

Journal of High Energy Physics
We compute the isospin-violating part a μ HVP , 38 $$ {a}_{\mu}^{\textrm{HVP},38} $$ of the hadronic-vacuum-polarization (HVP) contribution to the muon (g − 2) in lattice QCD at the SU(3)f-symmetric point where M π = M K ≃ 416 MeV. All diagrams involving
Dominik Erb, Antoine Gérardin, Harvey B. Meyer, Julian Parrino, Volodymyr Biloshytskyi, Vladimir Pascalutsa   +5 more
doaj   +1 more source

Perturbative contributions to Δ α 5 M Z 2 $$ \Delta {\alpha}^{(5)}\left({M}_Z^2\right) $$

Journal of High Energy Physics, 2023
We compute a theoretically driven prediction for the hadronic contribution to the electromagnetic running coupling at the Z scale using lattice QCD and state-of-the-art perturbative QCD.
Jens Erler, Rodolfo Ferro-Hernández
doaj   +1 more source

Comparison of cosmological models using standard rulers and candles

, 2015
In this paper, we used standard rulers and standard candles (separately and jointly) to explore five popular dark energy models under assumption of spatial flatness of the Universe.
Biesiada, Marek, Cao, Shuo, Li, Song, Li, Xiaolei, Zheng, Xiaogang   +4 more
core   +1 more source

SU(3) Predictions of $B\to PP$ Decays in the Standard Model [PDF]

, 2002
With SU(3) symmetry one only needs 13 hadronic parameters to describe $B\to PP$ decays in the Standard Model. When annihilation contributions are neglected, only 7 hadronic parameters are needed.
Asner, Aubert, Buchalla, Cronin-Hennessy, Deshpande, H.-K. Fu, He, J.-Q. Shi, Neubert, Olsen, Wang, X.-G. He, Y.-K. Hsiao, Zhou   +13 more
core   +2 more sources

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács, Zoltán Köllő, Balázs Gellért Karvaly, Mahmoud Obeidat, Rita Nagy, Péter Hegyi, Brigitta Teutsch, Eszter Tuboly, Miklós Garami   +8 more
wiley   +1 more source