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Science & Tech.
Mahesh

28/02/23 19:49 PM IST

Neutrinos

In News
  • Recently, the Kamioka Liquid Scintillator Antineutrino Detector (KamLAND) experiment in Japan has found no evidence that neutrinos are their antiparticles.
Neutrinos
  • Neutrinos are mysterious particles, produced copiously in nuclear reactions in the Sun, stars, and elsewhere.
  • They also "oscillate"-- meaning that different types of neutrinos change into one another.
  • A neutrino is a fermion that interacts only via weak interaction and gravity.
  • Probing of oscillations of neutrinos and their relations with mass are crucial in studying the origin of the universe.
  • Neutrinos are created by various radioactive decay; during a supernova, by cosmic rays striking atoms etc.
Anti-particle
  • Every elementary particle has an antiparticle. If the two meet, they will destroy each other in a flash of energy.
  • The electron’s antiparticle is the positron. Similarly, neutrinos have anti-neutrinos.
  • However, an electron is distinguishable from a positron because they have opposite charges.
  • Neither neutrinos nor anti-neutrinos have electric charge, nor any other properties to really differentiate between them.
Source- The Hindu

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