Results 11 to 20 of about 158,369 (302)
Neutrino mass operator renormalization revisited [PDF]
Physics Letters B, 2001 We re-derive the renormalization group equation for the effective coupling of the dimension five operator which corresponds to a Majorana mass matrix for the Standard Model neutrinos. We find a result which differs somewhat from earlier calculations, leading to modifications in the evolution of leptonic mixing angles and CP phases.
Antusch, Stefan +4 more
openaire +5 more sources
The three-loop single mass polarized pure singlet operator matrix element
Nuclear Physics B, 2020 We calculate the massive polarized three-loop pure singlet operator matrix element AQq(3),PS in the single mass case in the Larin scheme. This operator matrix element contributes to the massive polarized three-loop Wilson coefficient HQq(3),PS in deep ...
J. Ablinger +6 more
doaj +3 more sources
New Weinberg operator for neutrino mass and its seesaw origin
Journal of High Energy Physics, 2019 We consider a new Weinberg operator for neutrino mass of the form H u H ˜ d L i L j $$ {H}_u{\tilde{H}}_d{L}_i{L}_j $$ involving two different Higgs doublets H u , H d with opposite hypercharge, where H ˜ s d $$ \tilde{H}{s}_d $$ is the charge conjugated
Josu Hernandez-Garcia, Stephen F. King
doaj +2 more sources
Journal of High Energy Physics, 2022 We calculate the gluonic massive operator matrix elements in the unpolarized and polarized cases, A gg,Q (x, μ 2) and ∆A gg,Q (x, μ 2), at three-loop order for a single mass.
J. Ablinger +7 more
doaj +3 more sources
Topologically distinct Feynman diagrams for mass operator in electron-phonon interaction [PDF]
Condensed Matter Physics, 2009 The new method for designing topologically distinct Feynman diagrams for electron's mass operator in electron-phonon interaction is developed using the permutation group theory.
C.C. Tovstyuk
doaj +2 more sources
The two-mass contribution to the three-loop pure singlet operator matrix element
Nuclear Physics B, 2018 We present the two-mass QCD contributions to the pure singlet operator matrix element at three loop order in x-space. These terms are relevant for calculating the structure function F2(x,Q2) at O(αs3) as well as for the matching relations in the variable
J. Ablinger +4 more
doaj +2 more sources
Effects of steady state free precession parameters on cardiac mass, function, and volumes. [PDF]
, 2007 PURPOSE: We aimed to investigate comparability of LV volumes, function, and mass acquired with three steady-state free precession (SSFP) pulse sequences, simulating typical vendor and protocol specific differences in data acquisition. METHODS: Twenty-one
Francis, JM +7 more
core +1 more source
Condensed Matter Physics, 2019 The theory of renormalized energy spectrum of a multi-level quasiparticle interacting with polarization phonons at T = 0 K is developed within the Feynman-Pines diagram technique in a new approach.
M.V. Tkach +3 more
doaj +1 more source
Condensed Matter Physics, 2017 The theory of renormalized energy spectrum of localized quasi-particle interacting with polarization phonons at finite temperature is developed within the Feynman-Pines diagram technique.
M.V. Tkach +3 more
doaj +1 more source
On the mass dependence of the modular operator for a double cone [PDF]
, 2023 We present a numerical approximation scheme for the Tomita-Takesaki modular operator of local subalgebras in linear quantum fields, working at one-particle level.
Bostelmann, Henning +5 more
core +1 more source