Results 41 to 50 of about 3,682 (109)

Black Hole Solutions in Non-Minimally Coupled Weyl Connection Gravity

open access: yesUniverse
Schwarzschild and Reissner–Nordstrøm black hole solutions are found in the context of a non-minimal matter–curvature coupling with Weyl connection both in vacuum and in the presence of a cosmological constant-like matter content.
Maria Margarida Lima, Cláudio Gomes
doaj   +1 more source

Neutron Beta Decay and Exact Conservation of Charged Weak Hadronic Vector Current in the Standard Model

open access: yesUniverse
We investigate the reliability of the hypothesis of exact conservation of the charged weak hadronic vector current in neutron β−-decay with a polarized neutron and an unpolarized proton and electron. We calculate the contributions of the phenomenological
Derar Altarawneh   +2 more
doaj   +1 more source

An Update of the Hypothetical X17 Particle

open access: yesUniverse
Recently, when examining the differential internal pair creation coefficients of 8Be, 4He and 12C nuclei, we observed peak-like anomalies in the angular correlation of the e+e− pairs.
Attila J. Krasznahorkay   +8 more
doaj   +1 more source

New Classes of Solutions for Euclidean Scalar Field Theories

open access: yesUniverse
This paper presents new classes of exact radial solutions to the nonlinear ordinary differential equation that arises as a saddle-point condition for a Euclidean scalar field theory in D-dimensional spacetime.
Carl M. Bender, Sarben Sarkar
doaj   +1 more source

Particle Production in pA Collisions at Mid-Rapidity in the Color Glass Condensate

open access: yesUniverse
Particle correlations in small collisions systems, like proton–nucleus, lie at the core of the discussion about whether quark–gluon plasma is produced in small systems.
Pedro Agostini   +2 more
doaj   +1 more source

Femtoscopy with Lévy Sources from SPS through RHIC to LHC

open access: yesUniverse
Femtoscopy is a unique tool to investigate the space-time geometry of the matter created in ultra-relativistic collisions. If the probability density distribution of hadron emission is parametrized, then the dependence of its parameters on particle ...
Máté Csanád, Dániel Kincses
doaj   +1 more source

Gauss’s Law and a Gravitational Wave

open access: yesUniverse
In this paper, we discuss the semi-classical gravitational wave corrections to Gauss’s law and obtain an explicit solution for the electromagnetic potential.
Olamide Odutola, Arundhati Dasgupta
doaj   +1 more source

The Non-Thermal Radio Emissions of the Solar Transition Region and the Proposal of an Observational Regime

open access: yesUniverse
The transition region is a very thin but most peculiar layer in the solar atmosphere located between the solar chromosphere and the corona. It is a key region for understanding coronal heating, solar eruption triggers, and the origin of solar winds. Here,
Baolin Tan   +7 more
doaj   +1 more source

Prediction of the Expansion of the Universe Made by Alexander Friedmann and the Effect of Particle Creation in Cosmology

open access: yesUniverse
This review devoted to the centenary of Alexander Friedmann’s prediction of the Universe expansion presents the results obtained by him in 1922 and 1924 and an overview of their further developments.
Vladimir M. Mostepanenko
doaj   +1 more source

Decoupling Limits in Effective Field Theories via Higher Dimensional Operators

open access: yesUniverse
The non-decoupling effects of heavy scalars and vector fields play an important role in the indirect search for Beyond the Standard Model (BSM) physics at the LHC.
Andrea Quadri
doaj   +1 more source

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