QUÉ SIGNIFICA ISOSPIN EN INGLÉS
Isospin
En física de partículas, isospin es un número cuántico relacionado con la interacción fuerte. Las partículas que son afectadas igualmente por la fuerza fuerte pero tienen diferentes cargas pueden ser tratadas como diferentes estados de la misma partícula con valores de isospin relacionados con el número de estados de carga. Aunque no tiene las unidades de momento angular y no es un tipo de giro, se trata formalmente como un momento cinético mecánico cuántico. Por ejemplo, un par de protones-neutrones puede estar en un estado de isospin total 1 o 0. Es una cantidad adimensional y el nombre deriva del hecho de que las estructuras matemáticas usadas para describirlo son muy similares a las utilizadas para describir la intrínseca Forma de momento angular. Este término se derivó del spin isotópico que es confuso y los físicos nucleares prefieren el spin isobárico, que es más preciso en significado. La simetría de isospin es un subconjunto de la simetría del sabor vista más ampliamente en las interacciones de bariones y mesones.
definición de isospin en el diccionario inglés
La definición de isospin en el diccionario es un número cuántico interno utilizado en la clasificación de partículas elementales. Las partículas que tienen propiedades muy similares, excepto las asociadas a su carga, se consideran formas de la misma partícula fundamental con diferentes componentes del isospín en una dirección determinada en un espacio imaginario. También se llama: spin isobárico, spin isotópico.
PALABRAS DEL INGLÉS RELACIONADAS CON «ISOSPIN»
isospin ·
operator ·
multiplet ·
triplet ·
photon ·
pion ·
electron ·
hypercharge ·
particle ·
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quantum ·
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lecture ·
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hadronic ·
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scattering ·
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college ·
engineering ·
another ·
thinking ·
10 LIBROS DEL INGLÉS RELACIONADOS CON «ISOSPIN»
Descubre el uso de
isospin en la siguiente selección bibliográfica. Libros relacionados con
isospin y pequeños extractos de los mismos para contextualizar su uso en la literatura.
1
Lie Algebras in Particle Physics: From
Isospin to Unified ...
Howard Georgi is the co-inventor (with Sheldon Glashow) of the SU(5) theory.
2
Symmetries in Atomic Nuclei: From
Isospin to Supersymmetry
The authors present an overview of recent applications of symmetry to the description of atomic nuclei.
Alejandro Frank, Jan Jolie, P. Van Isacker,
2009
3
Nuclei at Extremes of
Isospin and Mass
Contributed articles presented in a workshop organised by Institute of Physics, Bhubaneswar, held during Mar. 10-22, 2003.
A. Ansari, R. K. Choudhury,
2005
Isospin and generalized Pauli principle Isospin, ˆt, operator of isospin, has all the
mathematical properties of the spin operator ˆs =ˆσ/2 (in units of ~), ˆt=(ˆtx,ˆty,ˆtz),
ˆt = ˆτ/2, t = 1/2, mt =±1/2. Proton and neutron may be considered to be two ...
Walter Benenson, Horst Stöcker,
2002
5
Introduction to Elementary Particle Physics
The two initial hadrons belong to two isospin multiplets, and similarly the final
ones. Changing the particles in each of these multiplets we have different
reactions, with cross-sections related by isospin conservation. We shall see some
...
6
Symmetry Principles Particle Physics
APPENDIX C ISOSPIN AND SU(3) PHASE CONVENTIONS This appendix
contains an explanation of the phase conventions used in this book for the
operators and states of the internal symmetries: isospin, SU(3) and charge
conjugation.
W. M. Gibson, B. R. Pollard,
1980
7
Great Physicists: The Life and Times of Leading Physicists ...
But abstract as it is, the isospin concept, extended and combined with Gell-
Mann's strangeness rules, displays just what theorists want to know: the
underlying symmetries of the nucleon and its hadron relatives. We will need a
few more items ...
8
Lie Groups for Pedestrians
Selection rules. One can also find selection rules which result from isospin. For
example, if one considers only nucleons and pions, states having an odd baryon
number must belong in a multiplet with a half-integral isospin, whereas states
with ...
9
Concepts of Particle Physics
(a) Weak isospin An analysis of these undesirable features (see §§VI.A and B,
Vol. II) reveals that they stem from a lack of symmetry of the charge-changing
weak interaction. These symmetry features of weak processes can be understood
by ...
Kurt Gottfried, Victor Frederick Weisskopf,
1986
10
Australian Lonergan Workshop
isospin is a direct consequence of the charge independence of hadronic forces.
The proton and neutron, for example, can be treated as two states of the same
particle, the nucleon. Without the electromagnetic interaction the particles would
...
10 NOTICIAS EN LAS QUE SE INCLUYE EL TÉRMINO «ISOSPIN»
Conoce de qué se habla en los medios de comunicación nacionales e internacionales y cómo se emplea el término
isospin en el contexto de las siguientes noticias.
Large Hadron Collider upgraded to 13 Trillion electron volts, could …
... vexingly quantitized properties: quantitized charge, finite and perhaps precise rest masses, haunting properties such as spin and isospin, ... «Next Big Future, Mar 15»
Free Fallin': Equivalence Holds Even At Atomic Level
(1989) "Limits on Composition-Dependent Interactions Using a Laboratory Source: Is There a Fifth Force Coupled to Isospin?" Physical Review ... «Scientific American, May 14»
Theoretical Physicists Solve a 50-Year Homework Assignment
There are two different ways the two end-result pions can combine with each other (called isospin states), and we've only solved the problem ... «Scientific Computing, Oct 13»
Emmy equals Einstein squared
It is also unnerving to face terms such as isospin and hypercharge without explanatory anaesthetic. Usually these missing links are just ... «New Scientist, Jul 13»
Why Quarks Come In Three Colours And Have Fractional Charge
An example of such diagrams is shown on the right, where an axial-vector current couples to the third component of weak isospin of the fermion ... «Science 2.0, Sep 12»
Untangling the Orbitals in Iron-Based Superconductors
As Hu and Hao demonstrate, the two states in this isospin doublet mix weakly with each other, leading to a Hamiltonian composed of two ... «Physics, May 12»
Unraveling Electron Chirality in Graphene
In addition to spin and pseudospin, a third quantum label for graphene electrons is the two-component isospin degree of freedom, also called ... «Physics, Oct 11»
NRL researchers take a step toward valleytronics - a competitor to …
The two in-equivalent points are called K and K′ and form the valley isospin degree of freedom in graphene. The name valley isospin stems ... «Next Big Future, Abr 11»
A defect controls transport in graphene
One is called sublattice pseudospin and the other valley isospin. The former occurs due to the bipartite honeycomb lattice, which has two ... «Physics, Mar 11»
A tale of two excitations: A new theory predicts an unusual excitation …
Technically, these are referred to as isospin-1/2 bosons, but theoretically there is little difference between spin and isospin," explains RIKEN's ... «Nanotechnology News, Mar 09»