Results 101 to 110 of about 25,203 (212)

The Purely Leptonic and Semileptonic Decays of Ds∗ Meson

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
With the potential prospects of the Ds∗ at high‐luminosity heavy‐flavor experiments in the future, we investigated the CKM‐favored and tree‐dominated leptonic Ds∗⟶ℓν¯ℓ,ℓ=e,μ,τ and semileptonic Ds∗⟶Mℓ′ν¯ℓ′ M=ϕ,η′,K and ℓ′=e,μ weak decays in the standard model (SM).
Xiao-Lin Wang   +3 more
wiley   +1 more source

Constraints on Lorentz Invariance Violation using INTEGRAL/IBIS observations of GRB041219A [PDF]

open access: yes, 2011
One of the experimental tests of Lorentz invariance violation is to measure the helicity dependence of the propagation velocity of photons originating in distant cosmological obejcts.
A. Fernandez-Soto   +7 more
core   +4 more sources

Parameter estimation for a Lorentz invariance violation [PDF]

open access: yesInternational Journal of Modern Physics D, 2019
We employ techniques from quantum estimation theory (QET) to estimate the Lorentz violation parameters in the (1+3)-dimensional flat spacetime. We obtain and discuss the expression of the quantum Fisher information (QFI) in terms of the Lorentz violation parameter [Formula: see text] and the momentum [Formula: see text] of the created particles.
H. A. S. Costa   +2 more
openaire   +3 more sources

Self‐Regulating Feedback Between Field Line Curvature Scattering, Ring Current Pressure, and Magnetic Configuration

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract We incorporate field line curvature (FLC) scattering into a kinetic ring current model two‐way coupled with a global magnetospheric MHD model to investigate its role in SYM‐H prediction and global magnetospheric dynamics. FLC scattering reduces plasma pressure in regions where the ion gyroradius is comparable to the local FLC radius.
Suk‐Bin Kang   +5 more
wiley   +1 more source

Tests of Lorentz Invariance Using High Energy Astrophysics Observations

open access: yes, 2013
High-energy astrophysics observations provide the best possibilities to detect a very small violation of Lorentz invariance, such as may be related to the structure of space-time near the Planck scale.
Stecker, Floyd W.
core   +1 more source

The simplicity of physical laws

open access: yesNoûs, Volume 59, Issue 4, Page 957-987, December 2025.
Abstract Physical laws are strikingly simple, yet there is no a priori reason for them to be so. I propose that nomic realists—Humeans and non‐Humeans—should recognize simplicity as a fundamental epistemic guide for discovering and evaluating candidate physical laws.
Eddy Keming Chen
wiley   +1 more source

Model-independent constraints on Lorentz invariance violation via the cosmographic approach

open access: yesPhysics Letters B, 2018
Since Lorentz invariance plays an important role in modern physics, it is of interest to test the possible Lorentz invariance violation (LIV). The time-lag (the arrival time delay between light curves in different energy bands) of Gamma-ray bursts (GRBs)
Xiao-Bo Zou   +3 more
doaj   +1 more source

Information and Particle Physics

open access: yes, 2011
Information measures for relativistic quantum spinors are constructed to satisfy various postulated properties such as normalisation invariance and positivity.
Buck B.   +8 more
core   +1 more source

Performance Comparison Between Bifacial PERC and TOPCon on a South‐Facing Vertical Structure

open access: yesEnergy Science &Engineering, Volume 13, Issue 11, Page 5566-5573, November 2025.
We fabricated modules using Tunnel Oxide Passivated Contact and Passivated Emitter and Rear Contact solar cells, installed them outdoors, and compared their energy yields. This paper examines the factors contributing to the differences in energy yield, considering everything from the manufacturing processes of each solar cell to their electrical ...
Ji Woo Sohn   +11 more
wiley   +1 more source

Mass generation by a Lorentz-invariant gas of spacetime defects

open access: yes, 2017
We present a simple model of defects embedded in flat spacetime, where the model is designed to maintain Lorentz invariance over large length scales.
Klinkhamer, F. R., Queiruga, J. M.
core   +1 more source

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