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

Sitting still, a muon decays into an electron, a neutrino, and an antineutrino in 2.2 microseconds.

From Science Magazine • Mar. 27, 2024

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

From Nature • Feb. 26, 2019

Figure 31.19 In β− decay, the parent nucleus emits an electron and an antineutrino.

From Textbooks • Aug. 12, 2015

In neutrino-less double beta decay, both processes would happen in tandem: The antineutrino produced by the first type of decay would serve as the neutrino that enters into the second.

From Scientific American • Oct. 23, 2013