neutrino

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neu·tri·no

 (no͞o-trē′nō, nyo͞o-)
n. pl. neu·tri·nos
Any of three electrically neutral leptons (the electron neutrino, muon neutrino and tau neutrino—one in each of the three generations of elementary fermions) that have small or very small masses.

[Italian, from neutrino, little neutral one : neutro, neuter, neutral (from Latin neuter, neutr-, neuter; see neuter) + -ino, dimutive suff. (from Latin -īnus, adj. suff.; see -ine1). Coined by Enrico Fermi on the model of Italian neutrone, neutron, taken as the augmentative of Italian neutro.]

neutrino

(njuːˈtriːnəʊ)
n, pl -nos
(General Physics) physics a stable leptonic neutral elementary particle with very small or possibly zero rest mass and spin that travels at the speed of light. Three types exist, associated with the electron, the muon, and the tau particle
[C20: from Italian, diminutive of neutrone neutron]

neu•tri•no

(nuˈtri noʊ, nyu-)

n., pl. -nos.
a massless or nearly massless electrically neutral lepton.
[< Italian (1933)]

neu·tri·no

(no͞o-trē′nō)
Any of three electrically neutral subatomic particles that travel at the speed of light. Neutrinos are thought to have a mass that is too close to zero, when they are not moving, to be measured.
Did You Know? Neutrinos were not observed until 1955, roughly a quarter of a century after the physicist Wolfgang Pauli first proposed, on theoretical grounds, that they might exist. Pauli was studying certain radioactive decay processes in which it seemed that energy somehow mysteriously disappeared. He suggested that the energy was carried away by a very small, electrically neutral particle that was not being detected. (He originally wanted to name the particle a neutron but didn't publish the suggestion, and a few years later the particle we now know as the neutron was discovered and named in print. The Italian physicist Enrico Fermi then coined the term neutrino, which means "little neutron" in Italian.) Neutrinos are hard to detect because they interact only very weakly with other forms of matter. Most of the neutrinos that reach the Earth from space pass right through and go out the other side. Even a chunk of iron a few light-years thick would stop only about half of the neutrinos that struck it.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.neutrino - an elementary particle with zero charge and zero mass
lepton - an elementary particle that participates in weak interactions; has a baryon number of 0
Translations

neutrino

nNeutrino nt

neutrino

[njuːˈtriːnəʊ] nneutrino
References in periodicals archive ?
But the observation of high-energy neutrinos by IceCube indicates that these high-energy pions do decay according to the standard ideas of physics, generating neutrinos whose speed approaches that of light but never exceeds it.
Topics include extra dimensions; The International Linear Collider; astrophysical aspects of neutrinos; leptogenesis; neutrino experiments; string theory, string model-building, and string phenomenology--a practical introduction; theoretical aspects of neutrino masses and mixings; searching for the Higgs boson; Z phenomenology and the LHC; neutrinoless double beta decay; and supersymmetry in elementary particle physics.
Neutrinos from nuclear reactors disappear on the flight from the reactors to our detector.
Since neutrinos are detected at SNO by a heavy-water Cerencov counter, a precise knowledge of the neutrino-deuteron reaction rates is very important for quantitative interpretations of the data.
En realidad no se descubrio un nuevo ciclo de emision de neutrinos solares, sino que en septiembre pasado se descarto la vieja idea de que la emision de neutrinos tenia un comportamiento ciclico de once anos, Los investigadores Peter Sturrock y Guenter Walther, de la Universidad de Stanford, llegaron a la conclusion de que el ciclo de emision de neutrinos solares es de tan solo 21.
In 1980 Frederick Reines (see 1956) reported on experiments that indicated neutrinos might have tiny quantities of mass (for years they had been thought to be massless).
Talking about his work which brought him the Nobel Prize, he outlined that Neutrinos are fundamental particles like electrons, which are produced during cosmic interactions in the atmosphere.
Neutrinos are nearly mass-less, charge-less particles that, on their paths through the vast expanse of space, pass through objects in their way.
With this new system, Fujitsu will support neutrino research at the Kamioka Observatory, helping to shed light on the properties of neutrinos and the workings of the universe.
With hypothetical eV-scale sterile neutrinos coming under intense scrutiny by new experiments, sophisticated global fits will remain a linchpin for the theoretical interpretation of experimental data.
One of the most energetic neutrinos detected by the IceCube Neutrino Observatory (S&T: Jan.