Results 1 to 10 of about 6,776 (118)

¿De qué están hechas las cosas?

open access: yesCiencia e Ingeniería Neogranadina, 2002
En este artículo se describe la teoría actualmente aceptada sobre la constitución de la materia, conocida con el nombre de Modelo Estándar de Partículas Elementales. Se explica la razón y el origen de la clasificación entre diferentes tipos de partículas,
Helber Dussán
doaj   +1 more source

Deep Learning for the classification of quenched jets

open access: yesJournal of High Energy Physics, 2021
An important aspect of the study of Quark-Gluon Plasma (QGP) in ultrarelativistic collisions of heavy ions is the ability to identify, in experimental data, a subset of the jets that were strongly modified by the interaction with the QGP.
L. Apolinário   +5 more
doaj   +1 more source

The gamma/hadron discriminator LCm in realistic air shower array experiments

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this article, it is shown that the $$C_k$$ C k and LCm variables, recently introduced as an effective way to discriminate gamma and proton-induced showers in large wide-field gamma-ray observatories, can be generalised to be used in arrays of ...
R. Conceição   +4 more
doaj   +1 more source

The Mercedes water Cherenkov detector

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
The concept of a small, single-layer water Cherenkov detector, with three photomultiplier tubes (PMTs), placed at its bottom in a $$120^{\circ }$$ 120 ∘ star configuration (Mercedes Water Cherenkov Detector) is presented.
P. Assis   +15 more
doaj   +1 more source

Adverbios, partículas y marcadores del discurso: αὖ y αὖθις en los historiadores griegos

open access: yesEmerita, 2014
El propósito de este trabajo es estudiar αὖ y αὖθις en los textos de los historiadores griegos. Αὖθις funciona prototípicamente como un adverbio, mientras que algunos estudiosos consideran que αὖ es más bien una partícula.
José Miguel Jiménez Delgado
doaj   +1 more source

A machine learning-based methodology for pulse classification in dual-phase xenon time projection chambers

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Machine learning techniques are now well established in experimental particle physics, allowing detector data to be analyzed in new and unique ways. The identification of signals in particle observatories is an essential data processing task that can ...
P. Brás   +9 more
doaj   +1 more source

Precursor superconducting effects in the optimally doped YBa2Cu3O7−δ superconductor: the confrontation between superconducting fluctuations and percolative effects revisited

open access: yesSN Applied Sciences, 2022
The confrontation between the superconducting fluctuations and percolation effects as the origin of the in-plane paraconductivity in cuprate superconductors was earlier addressed at a quantitative level in the case of the optimally doped YBa2Cu3O7−δ ...
I. F. Llovo   +3 more
doaj   +1 more source

Are there Einsteinian gravities involving covariant derivatives of the Riemann tensor?

open access: yesJournal of High Energy Physics, 2022
We study the particle content of higher derivative theories of gravity built with contractions of the Riemann tensor and its covariant derivatives. In the absence of the latter, there is a family of theories exhibiting an Einsteinian spectrum known as ...
José D. Edelstein   +2 more
doaj   +1 more source

Coevolución en redes sociales

open access: yesEducación Química, 2018
Este artículo contiene la parte puramente científica de la conferencia invitada “¿Hacia dónde va la Física?” impartida en la VIII Convención Nacional y I Internacional de Profesores de Ciencias Naturales, en Zacatecas, México, el 16 de noviembre de 2008.
Gerardo Íniguez, Rafael A. Barrio
doaj   +1 more source

El gran diseño

open access: yesAdministración & Desarrollo, 2013
En el último libro del autor de la teoría de los agujeros negros, se intenta dar una respuesta al origen del universo desde la física cuántica, a partir precisamente de las interacciones de espacio, el tiempo y la energía de la materia. Hasta el momento,
William Guillermo Jimenez
doaj   +1 more source

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