Results 11 to 20 of about 429,669 (317)

Single-photon microwave photonics

open access: yesScience Bulletin, 2022
With the rapid development of microwave photonics technology, high-speed processing and ultra-weak signal detection capability have become the main bottlenecks in many applications. Thanks to the ultra-weak signal detection capability and the extremely low timing jitter properties of single-photon detectors, the combination of single-photon detection ...
Ye, Yang   +9 more
openaire   +2 more sources

VIRTUAL PHOTON–PHOTON SCATTERING [PDF]

open access: yesInternational Journal of Modern Physics: Conference Series, 2014
Based on analyticity, unitarity, and Lorentz invariance the contribution from hadronic vacuum polarization to the anomalous magnetic moment of the muon is directly related to the cross section of e+e− → hadrons . We review the main difficulties that impede such an approach for light-by-light scattering and identify the required ingredients from ...
Hoferichter, Martin   +3 more
openaire   +3 more sources

High energy photon-photon collisions [PDF]

open access: yesNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1995
The collisions of high energy photons produced at an electron-positron collider provide a comprehensive laboratory for testing QCD, electroweak interactions, and extensions of the Standard Model. The luminosity and energy of the colliding photons produced by back-scattering laser beams is expected to be comparable to that of the primary $e^+e ...
Brodsky, Stanley J.   +3 more
openaire   +3 more sources

Photon-photon scattering at the photon linear collider [PDF]

open access: yesPhysics Letters B, 1994
Standard LaTeX. 8 pages+5 figures (available by regular mail).
Jikia, G., Tkabladze, A.
openaire   +2 more sources

PHOTON-PHOTON INTERACTIONS [PDF]

open access: yesNuclear Physics A, 1981
Abstract A brief summary of the present status of photon-photon interactions is presented. Stress is placed on the use of two-photon collisions to test present ideas on the quark constituents of hadrons and on the theory of strong interactions.
openaire   +1 more source

Possible Simple Structures of the Universe to Include General Relativity Effects [PDF]

open access: yesINCAS Bulletin, 2017
The general relativity describes the universe properties, the gravity playing a fundamental role. One uses a metric tensor in a Riemann space, g  , which should be in agreement with a mass (or energy) tensor in order to satisfy the Einstein equation of
Corneliu BERBENTE, Sorin BERBENTE
doaj   +1 more source

The impact of radiotherapy on the hypothalamo-pituitary axis: old vs new radiotherapy techniques

open access: yesEndocrine Connections, 2023
Multimodality cancer therapy has led to remarkable improvements in survival of childhood and young adult cancer, with survival rates exceeding 85%. Such remission rates come with their own adverse sequelea or ‘late effects’.
David S McLaren   +4 more
doaj   +1 more source

Power-effective integral thermoelectric solar radiation converter

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2020
Aim. This article is devoted to the conversion of solar radiation into electricity using the joint effect of several methods, which complement each other by transforming the disadvantages of one method into the advantages of another method. Methods. Heat
S. M. Gadzhieva   +2 more
doaj   +1 more source

THE INERTIA OF LIGHT. VERIFICATION OF NEWTON’S SECOND LAW BY ACONFINED FLOW OF RADIATION IN A REFLECTIVE CAVITY

open access: yesAnales (Asociación Física Argentina), 2023
In 1904, the Austrian physicist Fritz Hasenöhrl examined by means of mental experiments the black body radiation in a reflecting cavity. By calculating the work required to keep the cavity moving at constant velocity in opposition to the radiation ...
C. M. Figueroa, S. Saracho
doaj   +1 more source

Photon-photon interaction in a photon gas [PDF]

open access: yesEurophysics Letters (EPL), 2000
Using the effective Lagrangian for the low energy photon-photon interaction the lowest order photon self energy at finite temperature and in non-equilibrium is calculated within the real time formalism. The Debye mass, the dispersion relation, the dielectric tensor, and the velocity of light following from the photon self energy are discussed.
openaire   +2 more sources

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