Results 21 to 30 of about 322,979 (191)

Non‐Linear Electrodynamics in Blandford–Znajek Energy Extraction

open access: yesAnnalen der Physik, Volume 535, Issue 5, May 2023., 2023
New analysis of black hole energy extraction emphasizes that the existence and behavior of non‐linear electromagnetic phenomena strongly depends on the physical context and that only a power‐law model seems to have any chance to compete with Maxwell. Abstract Non‐linear electrodynamics (NLED) is a generalization of Maxwell's electrodynamics for strong ...
Amodio Carleo   +2 more
wiley   +1 more source

Measurement of Λ transverse polarization in e + e − collisions at s $$ \sqrt{s} $$ = 3.68 − 3.71 GeV

open access: yesJournal of High Energy Physics, 2023
With data samples collected with the BESIII detector at seven energy points at s $$ \sqrt{s} $$ = 3.68 − 3.71 GeV, corresponding to an integrated luminosity of 333 pb −1, we present a study of the Λ transverse polarization in the e + e − → Λ Λ ...
The BESIII collaboration   +603 more
doaj   +1 more source

Beam-beam effects on the luminosity measurement at FCC-ee

open access: yesJournal of High Energy Physics, 2019
The first part of the physics programme of the integrated FCC (Future Circular Colliders) proposal includes measurements of Standard Model processes in e+e − collisions (FCC-ee) with an unprecedented precision.
Georgios Voutsinas   +3 more
doaj   +1 more source

A Possible Way to Unify Four Types of Interactions: Gravitational, Electromagnetic, Nuclear and Electroweak Interactions by using a Hydrodynamic Analogy [PDF]

open access: yesINCAS Bulletin, 2022
A principle of equivalence and a unique particle are used for a possible unification of four types of interaction. For gravity, the hydrodynamic analog consists of the interaction of two sources, giving attraction for both emission and absorption.
Corneliu BERBENTE   +2 more
doaj   +1 more source

Measurement of the cross section for electroweak production of a Z boson, a photon and two jets in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 13 TeV and constraints on anomalous quartic couplings

open access: yesJournal of High Energy Physics, 2020
A measurement is presented of the cross section for electroweak production of a Z boson and a photon in association with two jets (Zγjj) in proton-proton collisions.
The CMS collaboration   +2314 more
doaj   +1 more source

An effective field theory approach for electroweak interactions in the high energy limit

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We present an effective action for the electroweak sector of the standard model valid for the calculation of scattering amplitudes in the high energy (Regge) limit.
Melina Gómez Bock   +2 more
doaj   +1 more source

Light scalaron as dark matter

open access: yesPhysics Letters B, 2021
A new cosmological scenario is proposed in which a light scalaron of f(R) gravity plays the role of dark matter. In this scenario, the scalaron initially resides at the minimum of its effective potential while the electroweak symmetry is unbroken. At the
Yuri Shtanov
doaj  

Zero-range effective field theory for resonant wino dark matter. Part III. Annihilation effects

open access: yesJournal of High Energy Physics, 2018
Near a critical value of the wino mass where there is a zero-energy S-wave resonance at the neutral-wino-pair threshold, low-energy winos can be described by a zero-range effective field theory (ZREFT) in which the winos interact nonperturbatively ...
Eric Braaten, Evan Johnson, Hong Zhang
doaj   +1 more source

Measurement of the weak mixing angle at a Super Charm-Tau factory with data-driven monitoring of the average electron beam polarization

open access: yesJournal of High Energy Physics, 2020
A method for measuring the average longitudinal polarization of the electron beam at an electron-positron collider operating near the J/ψ resonance is proposed. The method utilizes the differential cross-section of J / ψ → Λ → p π − Λ → p ¯ π + $$ J/\psi
A. Bondar   +4 more
doaj   +1 more source

Gauge group contraction of electroweak model and its natural energy limits

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015
The low and higher energy limits of the Electroweak Model are obtained from first principles of gauge theory. Both limits are given by the same contraction of the gauge group, but for the different consistent rescalings of the field space.
Nikolay A Gromov
doaj   +1 more source

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