Results 1 to 10 of about 149,460 (164)

Unique neutrino mass operator at any mass dimension [PDF]

open access: yesPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011
When the standard model is viewed as a low energy effective theory, the neutrinos can obtain mass from higher dimensional operators. It has been known for long that such an operator first appears at mass dimension five and that it is unique. Here we show that the effective neutrino mass operator at every higher dimension is unique.
Yi Liao
exaly   +3 more sources

Renormalization of the neutrino mass operator [PDF]

open access: yesPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 1993
A small neutrino Majorana mass can arise in the Standard Model as an effective dimension 5 operator. We calculate the renormalization of this operator in the minimal Standard Model and in its two-Higgs-doublet and supersymmetric extensions. Renormalization from the scale of lepton number violation (e.g., the Planck scale or a GUT scale) to the weak ...
Babu, K. S.   +2 more
exaly   +3 more sources

Mass and Extremals Associated with the Hardy–Schrödinger Operator on Hyperbolic Space

open access: yesAdvanced Nonlinear Studies, 2018
We consider the Hardy–Schrödinger operator Lγ:=-Δ𝔹n-γ⁢V2{L_{\gamma}:=-\Delta_{\mathbb{B}^{n}}-\gamma{V_{2}}} on the Poincaré ball model of the hyperbolic space 𝔹n{\mathbb{B}^{n}} (n≥3{n\geq 3}).
Chan Hardy   +4 more
doaj   +2 more sources

How aerosol size matters in aerosol optical depth (AOD) assimilation and the optimization using the Ångström exponent [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
Satellite-based aerosol optical depth (AOD) has gained popularity as a powerful data source for calibrating aerosol models and correcting model errors through data assimilation.
J. Jin, J. Jin, B. Henzing, A. Segers
doaj   +1 more source

Renormalized spectrum of quasiparticle in limited number of states, strongly interacting with two-mode polarization phonons at T=0 K

open access: yesCondensed Matter Physics, 2021
Within unitary transformed Hamiltonian of Fröhlich type, using the Green's functions method, exact renormalized energy spectrum of quasiparticle strongly interacting with two-mode polarization phonons is obtained at T=0 K in a model of the system with ...
M.V. Tkach   +3 more
doaj   +1 more source

Structural Vibration Tests: Use of Artificial Neural Networks for Live Prediction of Structural Stress

open access: yesApplied Sciences, 2020
One of the ongoing tasks in space structure testing is the vibration test, in which a given structure is mounted onto a shaker and excited by a certain input load on a given frequency range, in order to reproduce the rigor of launch.
Laura Wilmes   +3 more
doaj   +1 more source

Mass Operator and Dynamical Implementation of Mass Superselection Rule [PDF]

open access: yesAnnales Henri Poincaré, 2012
We start reviewing Giulini's dynamical approach to Bargmann superselection rule proposing some improvements. We discuss some general features of the central extensions of the Galileian group used in Giulini's programme, focussing on the interplay of classical and quantum picture, without making any particular choice for the multipliers.
Annigoni, Eleonora, Moretti, Valter
openaire   +2 more sources

Radiative neutrino mass model from a mass dimension-11 ∆L = 2 effective operator

open access: yesJournal of High Energy Physics, 2020
We present the first detailed phenomenological analysis of a radiative Majorana neutrino mass model constructed from opening up a ∆L = 2 mass-dimension-11 effective operator constructed out of standard model fields.
John Gargalionis   +2 more
doaj   +1 more source

A liver mass post-Fontan operation [PDF]

open access: yesQJM, 2014
### Learning Point for Clinicians This case report raises awareness of a rare devastating complication of congenital heart diseases that require correction via the “Fontan” operation. In these patients, liver cirrhosis and its complications are now being recognised including hepatocellular carcinoma.
N, Rajoriya   +4 more
openaire   +2 more sources

Renormalized energy of ground and first excited state of Fröhlich polaron in the range of weak coupling

open access: yesCondensed Matter Physics, 2015
The partial summing of infinite range of diagrams for the two-phonon mass operator of polaron described by Frohlich Hamiltonian is performed using the Feynman-Pines diagram technique.
M.V. Tkach   +3 more
doaj   +1 more source

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