Results 31 to 40 of about 117,250 (270)

Consequences of a U(2) flavour symmetry [PDF]

open access: yesPhysics Letters B, 1997
While solving the supersymmetric flavour problem, a U(2) flavour symmetry might be at the origin of the pattern of fermion masses and mixings. The consequences of this hypothesis are spelled out concerning the parameters of the CKM matrix and their observability in B- and K-physics.
Barbieri R, Hall LJ, Romanino, Andrea
openaire   +2 more sources

Lepton flavor symmetries

open access: yesReviews of Modern Physics, 2021
We provide a general classification of flavour symmetries according to their interplay with the proper Poincare' and gauge groups and to their linear or nonlinear action in field space. We focus on the lepton sector and we review the different types of symmetries describing neutrino masses and the lepton mixing matrix.
Feruglio, F., Romanino, A.
openaire   +2 more sources

Plan permutation symmetries as a source of inefficiency in planning [PDF]

open access: yes, 2003
This paper briefly reviews sources of symmetry in planning and highlights one source that has not previously been tackled:plan permutation symmetry.
Long, D., Fox, M.
core   +3 more sources

Breaking flavour symmetry spontaneously [PDF]

open access: yesPhysics Letters B, 1997
Major revisions in text, 12 pages, RevTeX, 5 ...
openaire   +2 more sources

Weak decays of antitriplet charmed baryons from the perspective of flavor symmetry

open access: yesJournal of High Energy Physics, 2023
In this work, we carry out a global fit for the two-body weak decays of antitriplet charmed baryons in both SU(3) respected and broken scenarios incorporating all the available data up to date. In the SU(3) irreducible representation approach (IRA), more
Huiling Zhong   +3 more
doaj   +1 more source

Symmetry constrained two Higgs doublet models

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We study two-Higgs-doublet models (2HDM) where Abelian symmetries have been introduced, leading to a drastic reduction in the number of free parameters in the 2HDM.
João M. Alves   +5 more
doaj   +1 more source

Modular A5 symmetry for flavour model building [PDF]

open access: yesJournal of High Energy Physics, 2019
Abstract In the framework of the modular symmetry approach to lepton flavour, we consider a class of theories where matter superfields transform in representations of the finite modular group Γ5 ≃ A 5. We explicitly construct a basis for the 11 modular forms of weight 2 and level 5.
P. P. Novichkov   +3 more
openaire   +6 more sources

Leptonic Flavour Symmetries and their Cosmological Dynamics [PDF]

open access: yes, 2017
Neutrino oscillations, and the implication of non-zero neutrino masses and mixing, is one of the most significant particle physics discoveries in recent times. Flavour symmetries provide a compelling explanation of the pattern of mixing we observe in the
Turner, Jessica Margaret
core   +6 more sources

Modular binary octahedral symmetry for flavor structure of Standard Model

open access: yesJournal 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   +3 more
doaj   +1 more source

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