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Standard model with new order parameters at finite temperature [PDF]
Physical Review D, 2014 We consider the finite temperature effective potential of the standard model at the one-loop level in four dimensions by taking account of two kinds of order parameters, the Higgs vacuum expectation value and the zero modes of gauge fields for the Euclidean time direction.
Sakamoto, Makoto, Takenaga, Kazunori
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Quark masses, CKM angles and Lepton Flavour Universality violation
Journal of High Energy Physics, 2019 A properly defined and suitably broken U(2) flavour symmetry leads to successful quantitative relations between quark mass ratios and CKM angles. At the same time the intrinsic distinction introduced by U(2) between the third and the first two families ...
Riccardo Barbieri, Robert Ziegler
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Restrictions on the parameters of the Minimal Supersymmetric Standard Model with CP-violation [PDF]
EPJ Web of Conferences, 2019 The minimal supersymmetric extension of the standard model with CP-violation is considered in this paper. The main area of the model parameters, which is attractive for researchers, corresponds to small values of the tangent mixing angle of two doublets ...
Gurskaya Albina +2 more
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Nonperturbative estimates of the Standard Model parameters [PDF]
, 1997 This is the final report of a three-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project objectives were (1) to develop highly optimized codes for the simulation of lattice Quantum Chromodynamics (QCD) on the Connection Machine CM-5, (2) to use these codes to carry out a ...
Gupta, R. +5 more
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Universal approximations for flavor models
Journal of High Energy Physics, 2019 We develop a systematic analytical approximation scheme for the singular value decompositions of arbitrary complex three dimensional matrices Y with non-degenerate singular values. We derive exact expressions for the errors of this approximation and show
Gero von Gersdorff
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Journal of High Energy Physics, 2023 The decreasing uncertainties in theoretical predictions and experimental measurements of several hadronic observables related to weak processes, which in many cases are now smaller than O(1%), require theoretical calculations to include subleading ...
Peter Boyle +12 more
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Natural fermion hierarchies from random Yukawa couplings
Journal of High Energy Physics, 2017 The Standard Model of particle physics requires Yukawa matrices with eigenvalues that differ by orders of magnitude. We propose a novel way to explain this fact without any small or large parameters.
Gero von Gersdorff
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Chaotic strings and standard model parameters [PDF]
Physica D: Nonlinear Phenomena, 2002 We introduce so-called chaotic strings (coupled 1-dimensional noise strings underlying the Parisi-Wu approach of stochastic quantization on a small scale) as a possible amendment of ordinary string theories. These strings are strongly self-interacting and exhibit strongest possible chaotic behavior. Constraints on the vacuum energy of the strings fix a
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Higgs Sector in Extensions of the MSSM [PDF]
, 2006 Extensions of the Minimal Supersymmetric Standard Model (MSSM) with additional singlet scalar fields solve the important mu-parameter fine tuning problem of the MSSM.
A. Birkedal +9 more
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Restrictions on Parameters of Minimal Supersymmetric Standard Model
Contemporary Mathematics. Fundamental Directions, 2018 Higgs boson with mass mh = 126 GeV was discovered at Large Hadron Collider in 2012. Its mass corresponds both to Standard Model of elementary-particles physics and to the mass of the most lightweight Higgs boson in the minimal supersymmetric Standard Model.
Allakhverdieva, A. E. +2 more
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