antineutrino

American  

[an-tee-noo-tree-noh, -nyoo-, an-tahy-] / ˌæn ti nuˈtri noʊ, -nyu-, ˌæn taɪ- /

noun

Physics.

plural

antineutrinos

1. the antiparticle of a neutrino, distinguished from the neutrino by having clockwise rather than counterclockwise spin when observing in the direction of motion.

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antineutrino British  

/ ˌæntɪnjuːˈtriːnəʊ /

noun

1. the antiparticle of a neutrino; a particle having oppositely directed spin to a neutrino, that is, spin in the direction of its momentum

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antineutrino Scientific  

/ ăn′tē-no̅o̅-trē′nō,ăn′tī- /

1. The antiparticle that corresponds to the neutrino.

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Etymology

Origin of antineutrino

First recorded in 1930–35; anti- + neutrino

Example Sentences

The NOvA experiment started taking data in 2014 and will continue running through early 2027, during which time the collaboration hopes to double their antineutrino dataset.

From Science Daily • Jun. 19, 2024

Rarely, a proton in the oil will absorb an electron antineutrino to turn into a neutron while ejecting a positron—sort of the reverse of beta decay.

From Science Magazine • Jan. 11, 2023

Thus, when an antineutrino hits, Super-K will see not one flash but two, a few microseconds apart.

From Nature • Feb. 26, 2019

The electron’s antineutrino ν¯ e , being antimatter, has an electron family number of –1 .

From Textbooks • Aug. 12, 2015

Experiments that measure the rate of antineutrino production from the decay of uranium and plutonium isotopes have so far produced results roughly consistent with this theory.

From Scientific American • Apr. 1, 2011