Assertion: neutrino | /r/HasProperty | majorana particles
Facets:
value: relatedly
type: DEGREE
Source sentences:
text: The phase factors α 1 and α 2 are physically meaningful only if neutrinos are Majorana particles — i.e. if the neutrino is identical to its antineutrino (whether or not they are is unknown)
text: If the neutrino is a Majorana particle, the mass may be calculated by finding the half-life of neutrinoless double-beta decay of certain nuclei.
text: Mixing of two neutrinos (Majorana as well as Dirac) with masses m 1 and m 2 is considered in detail.
text: As of 2019 , it is not known whether neutrinos are Majorana or Dirac particles.
text: It is not known whether the neutrino is a Dirac fermion or a Majorana fermion.
text: Most Standard Model fermions are believed to be Dirac fermions, although it is unknown at this time whether the neutrinos are Dirac or Majorana fermions (or both).
text: In 1937, Ettore Majorana demonstrated that all results of beta decay theory remain unchanged if the neutrino were its own antiparticle, now known as a Majorana particle.
text: For example, if neutrinos are indeed Majorana particles, then lepton-number violating processes such as neutrinoless double beta decay would be allowed, while they would not if neutrinos are Dirac particles.
text: This research looks for a very rare predicted process called neutrinoless double beta decay that can occur only if neutrinos are Majorana particles.
text: This question of left-handedness or left chirality is particularly interesting if neutrinos are Majorana particles: particles that can function as their own antiparticles.
text: In 1930–40s, parity violation in weak interactions was not known, and consequently calculations showed that neutrinoless double beta decay should be much more likely to occur than ordinary double beta decay, if neutrinos were Majorana particles.
text: It is not yet known whether the neutrino is a Majorana particle and, relatedly, whether neutrinoless double beta exists in nature.
text: If the neutrino is a Majorana particle (i.e., the antineutrino and the neutrino are actually the same particle), and at least one type of neutrino has non-zero mass (which has been established by the neutrino oscillation experiments), then it is possible for neutrinoless double beta decay to occur.
text: The observation of neutrinoless double beta decay would require that at least one neutrino is a Majorana particle, irrespective of whether the process is engendered by neutrino exchange.
text: Mixing of two neutrinos (Majorana as well as Dirac) with masses m 1 and m 2 is considered in detail.
text: Mixing of two neutrinos (Majorana as well as Dirac) with masses m 1 and m 2 is considered in detail.
text: Another way to frame this mystery is to ask whether neutrinos are Majorana or Dirac particles.