Results 31 to 40 of about 103,878 (304)

An Infinitely Old Universe with Planck Fields Before and After the Big Bang

Universe
The Robertson–Walker minimum length (RWML) theory considers stochastically perturbed spacetime to describe an expanding universe governed by geometry and diffusion.
Dragana Pilipović
doaj   +1 more source

A Portalino to the Twin Sector

Journal of High Energy Physics, 2023
Extensions of the Standard Model are often highly constrained by cosmology. New states in the theory can dramatically alter observed properties of the universe by the presence of additional matter or entropy.
Di Liu, Neal Weiner
doaj   +1 more source

Electroweak precision tests of composite Higgs models

Journal of High Energy Physics, 2023
We study constraints on Composite Higgs models with fermion partial compositeness from electroweak precision measurements, including the 2022 W-boson mass result from the CDF collaboration.
Mads T. Frandsen, Martin Rosenlyst
doaj   +1 more source

A Machian solution of the hierarchy problem [PDF]

The European Physical Journal C, 2008
The new interpretation of Mach's principle of mass of a particle being a measure of the interactions of this particle with all other gravitating particles inside its causal spheres is introduced. It is shown that within some alternative model of gravitation that incorporates this principle, the Machian influence of the universe can reduce Planck's ...
openaire   +3 more sources

Emotions, international hierarchy, and the problem of solipsism in Sino-US South China Sea politics [PDF]

, 2019
This study offers an explanation for Beijing's seemingly self-defeating approach to the South China Sea that distances China ever more from the regional and international communities which it wants to lead and join while drawing in the foreign military ...
Wirth, Christian
core   +1 more source

Towards a non-perturbative approach to the Hierarchy problem

EPJ Web of Conferences, 2018
In this report, based on [1], we suggest that the hierarchy between the Electroweak (EW) and the Planck scales can emerge due to a nonperturbative effect that relates low-energy and strong-gravity physics.
Shkerin Andrey
doaj   +1 more source

Extensive and Intensive Aspects of Astrophysical Systems and Fine-Tuning

Universe
Most astrophysical systems (except for very compact objects such as, e.g., black holes and neutron stars) in our Universe are characterized by shallow gravitational potentials, with dimensionless compactness |Φ|≡rs/R≪1, where rs and R are their ...
Meir Shimon
doaj   +1 more source

Gegenbauer’s Twin

Journal of High Energy Physics, 2022
In Twin Higgs models the dominant source of fine-tuning is the cancellation of order v 2 /f 2 required to obtain a Standard Model-like Higgs, where v and f are the electroweak and new physics scales, respectively.
Gauthier Durieux, Matthew McCullough, Ennio Salvioni   +2 more
doaj   +1 more source

WhithamsToda Hierarchy in the Laplacian Growth Problem [PDF]

Journal of Non-linear Mathematical Physics, 2001
The Laplacian growth problem in the limit of zero surface tension is proved to be equivalent to finding a particular solution to the dispersionless Toda lattice hierarchy. The hierarchical times are harmonic moments of the growing domain. The Laplacian growth equation itself is the quasiclassical version of the string equation that selects the solution
MINEEV-WEINSTEIN, M., ZABRODIN, A.
openaire   +3 more sources

Single‐cell DNA methylation profiling: Technologies, computation, and applications in precision oncology

Molecular Oncology, EarlyView.
Single‐cell DNA methylation (scDNAme) profiling maps epimutational clonal evolution, revealing mechanisms of malignancy and therapeutic resistance across diverse cancer types. By providing a high‐resolution landscape of intratumoral heterogeneity, these technologies empower precise patient stratification, guide the development of enhanced ...
Ik Soo Kim
wiley   +1 more source