Results 81 to 90 of about 2,678 (202)

A Seismically Active Shear Zone in the Uppermost Mantle Beneath the Canadian Rockies

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Continental mantle earthquakes are uncommon but hold important clues for understanding lithospheric rheology. Few of these earthquakes (<10) have been documented in western North America, though it is likely more exist owing to difficulties in resolving focal depth for small earthquakes.
Sean J. Hutchings   +2 more
wiley   +1 more source

Vacuum metastability from Axion-Higgs criticality

open access: yesJournal of High Energy Physics
Self-organised criticality, realised through cosmological dynamics in the early universe, is an alternative paradigm for addressing the electroweak hierarchy problem.
Maximilian Detering, Tevong You
doaj   +1 more source

The hunt for axions

open access: yes, 2015
Many theoretically well-motivated extensions of the Standard Model of particle physics predict the existence of the axion and further ultralight axion-like particles.
Ringwald, Andreas
core  

Cosmological bounds on pseudo Nambu-Goldstone bosons

open access: yes, 2012
We review the cosmological implications of a relic population of pseudo Nambu-Goldstone bosons (pNGB) with an anomalous coupling to two photons, often called axion-like particles (ALPs).
  +16 more
core   +1 more source

Floral shape and color impact heat accumulation and thermal stability of the floral microenvironment in a subalpine meadow

open access: yesAmerican Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Premise The floral thermal microenvironment impacts plant reproduction through its effects on gametophyte performance and plant–pollinator interactions. Color and shape are axes of floral variation that may mediate floral temperature because they affect the absorption and reflection of solar radiation, but their interactive effects are unclear.
Jennifer S. Apland   +2 more
wiley   +1 more source

Documentation of Eastern Alps bronze Axes

open access: green, 2021
Caroline Grutsch   +3 more
openalex   +2 more sources

Axion production in the η → ππa decay within SU(3) chiral perturbation theory

open access: yesJournal of High Energy Physics
We study the axion and axion-like particle production from the η → ππa decay within the SU(3) chiral perturbation theory up to the one-loop level. The conventional SU(3) chiral low energy constants are found to be able to reabsorb all the divergences ...
Jin-Bao Wang   +3 more
doaj   +1 more source

Temperature and the evolution of flower color: A review

open access: yesAmerican Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Flower colors brighten our natural world. How and why have they evolved? How might ongoing global warming alter their evolutionary trajectories? In this review, I examine the influence of ambient temperature on the evolution of flower color.
Elizabeth P. Lacey
wiley   +1 more source

New axion and hidden photon constraints from a solar data global fit

open access: yes, 2015
We present a new statistical analysis that combines helioseismology (sound speed, surface helium and convective radius) and solar neutrino observations (the $^8$B and $^7$Be fluxes) to place upper limits to the properties of non standard weakly ...
Basu, Sarbani   +5 more
core   +1 more source

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