Results 11 to 20 of about 1,555 (262)

∆Ms theory precision confronts flavour anomalies [PDF]

Journal of High Energy Physics, 2019
Abstract Based on recent HQET sum rule and lattice calculations we present updated Standard Model predictions for the mass differences of neutral B mesons: $$ \varDelta {M}_s^{\mathrm{SM}}=\left({18.4}_{-1.2}^{+0.7}\right){\mathrm{ps}}^{-1} $$ Δ
Di Luzio L., Kirk M., Lenz A., Rauh T.
openaire   +5 more sources

Fermion masses, critical behavior and universality

Journal of High Energy Physics, 2023
We look for signals of critical behavior in the Yukawa sector. By reviewing a set of models for the fermion masses, we select those where a symmetry-breaking order parameter sits at a transition point between a disordered phase and an ordered one.
Ferruccio Feruglio
doaj   +1 more source

Plan B: new Z′ models for b → sℓ + ℓ − anomalies

Journal of High Energy Physics, 2023
Measurements of b → sμ + μ − transitions indicate that there may be a new physics field coupling to di-muon pairs associated with the b to s flavour transition.
Ben Allanach, Anna Mullin
doaj   +1 more source

Minimally modified Fritzsch texture for quark masses and CKM mixing

Journal of High Energy Physics, 2023
The Standard Model does not constrain the form of the Yukawa matrices and thus the origin of fermion mass hierarchies and mixing pattern remains puzzling.
Benedetta Belfatto, Zurab Berezhiani
doaj   +1 more source

Flavour Theory: 2009 [PDF]

Proceedings of European Physical Society Europhysics Conference on High Energy Physics — PoS(EPS-HEP 2009), 2010
After an overture and a non-technical exposition of the relevant theoretical framework including a brief discussion of some of the most popular extensions of the Standard Model, we will compile a list of 20 goals in flavour physics that could be reached already in the next decade. In addition to K, D and B_{s,d} decays and lepton flavour violation also
openaire   +2 more sources

Common origin of θ 13 and dark matter within the flavor symmetric scoto-seesaw framework

Journal of High Energy Physics, 2022
To understand the observed pattern of neutrino masses and mixing as well as to account for the dark matter we propose a hybrid scoto-seesaw model based on the A 4 discrete flavor symmetry.
Joy Ganguly, Janusz Gluza, Biswajit Karmakar   +2 more
doaj   +1 more source

Wrinkles in the Froggatt-Nielsen mechanism and flavorful new physics

Journal of High Energy Physics, 2023
When the Froggatt-Nielsen mechanism is used to explain the Standard Model flavor hierarchy, new physics couplings are also determined by the horizontal symmetry.
Pouya Asadi, Arindam Bhattacharya, Katherine Fraser, Samuel Homiller, Aditya Parikh   +4 more
doaj   +1 more source

Aspects of flavour and supersymmetry in F-theory GUTs [PDF]

Journal of High Energy Physics, 2010
We study the constraints of supersymmetry on flavour in recently proposed models of F-theory GUTs. We relate the topologically twisted theory to the canonical presentation of eight-dimensional super Yang-Mills and provide a dictionary between the two.
Conlon, Joseph P, Palti, Eran
openaire   +5 more sources

Modular binary octahedral symmetry for flavor structure of Standard Model

Journal of High Energy Physics, 2023
We have investigated the modular binary octahedral group 2O as a flavor symmetry to explain the structure of Standard Model. The vector-valued modular forms in all irreducible representations of this group are constructed. We have classified all possible
Gui-Jun Ding, Xiang-Gan Liu, Jun-Nan Lu, Ming-Hua Weng   +3 more
doaj   +1 more source

Flavour singlets in gauge theory as permutations

Journal of High Energy Physics, 2016
50 pages, v2: typos corrected, v3: to appear in ...
Yusuke Kimura, Sanjaye Ramgoolam, Ryō Suzuki   +2 more
openaire   +4 more sources