Physics:Quantum neutrino: Difference between revisions
Remove separate abstract heading from particle page |
Rebuild particle page from reviewed Wikipedia sources |
||
| Line 1: | Line 1: | ||
{{Short description|Neutral lepton | {{Short description|Neutral lepton with flavor oscillations}} | ||
{{Quantum matter backlink|Particles}} | {{Quantum matter backlink|Particles}} | ||
| Line 11: | Line 10: | ||
<div style="flex:1; line-height:1.45; color:#006b45; column-count:2; column-gap:32px; column-rule:1px solid #b8d8c8;"> | <div style="flex:1; line-height:1.45; color:#006b45; column-count:2; column-gap:32px; column-rule:1px solid #b8d8c8;"> | ||
A '''quantum neutrino''' is an electrically neutral lepton with very small mass. | A '''quantum neutrino''' is an electrically neutral lepton with very small mass and weak interaction strength. Neutrinos are produced in nuclear reactions, particle decays, astrophysical sources, and high-energy collisions. Their flavor oscillations show that flavor states are quantum superpositions of mass states.<ref name="pdg">{{cite journal |author=Particle Data Group |title=Review of Particle Physics |journal=Progress of Theoretical and Experimental Physics |year=2022 |volume=2022 |issue=8 |pages=083C01 |doi=10.1093/ptep/ptac097}}</ref><ref name="superk1998">{{cite journal |last1=Fukuda |first1=Y. |display-authors=etal |collaboration=Super-Kamiokande Collaboration |title=Evidence for Oscillation of Atmospheric Neutrinos |journal=Physical Review Letters |year=1998 |volume=81 |issue=8 |pages=1562-1567 |doi=10.1103/PhysRevLett.81.1562}}</ref><ref name="sno2002">{{cite journal |last1=Ahmad |first1=Q. R. |display-authors=etal |collaboration=SNO Collaboration |title=Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory |journal=Physical Review Letters |year=2002 |volume=89 |issue=1 |pages=011301 |doi=10.1103/PhysRevLett.89.011301}}</ref> | ||
</div> | </div> | ||
| Line 20: | Line 19: | ||
</div> | </div> | ||
== Flavor and mass == | |||
Neutrinos are observed in electron, muon, and tau flavors. Oscillation experiments show that these flavor states are not identical to mass states. As a neutrino propagates, relative quantum phases between mass components change, producing a probability for one flavor to be detected as another. | |||
== Interactions == | |||
Neutrinos do not carry electric or color charge. They interact through the weak force and gravity, which makes them difficult to detect but also valuable messengers from dense or distant environments. Detection typically relies on charged-current or neutral-current weak reactions. | |||
== Scientific role == | |||
Neutrinos probe solar fusion, supernovae, atmospheric showers, reactors, accelerators, and cosmology. Open questions include the absolute neutrino mass scale, mass ordering, CP violation in the lepton sector, and whether neutrinos are Dirac or Majorana particles.<ref name="halzen">{{cite book |last1=Halzen |first1=Francis |last2=Martin |first2=Alan D. |title=Quarks and Leptons: An Introductory Course in Modern Particle Physics |publisher=Wiley |year=1984 |isbn=978-0-471-88741-6}}</ref> | |||
=See also= | =See also= | ||
Revision as of 20:39, 19 May 2026
A quantum neutrino is an electrically neutral lepton with very small mass and weak interaction strength. Neutrinos are produced in nuclear reactions, particle decays, astrophysical sources, and high-energy collisions. Their flavor oscillations show that flavor states are quantum superpositions of mass states.[1][2][3]
Flavor and mass
Neutrinos are observed in electron, muon, and tau flavors. Oscillation experiments show that these flavor states are not identical to mass states. As a neutrino propagates, relative quantum phases between mass components change, producing a probability for one flavor to be detected as another.
Interactions
Neutrinos do not carry electric or color charge. They interact through the weak force and gravity, which makes them difficult to detect but also valuable messengers from dense or distant environments. Detection typically relies on charged-current or neutral-current weak reactions.
Scientific role
Neutrinos probe solar fusion, supernovae, atmospheric showers, reactors, accelerators, and cosmology. Open questions include the absolute neutrino mass scale, mass ordering, CP violation in the lepton sector, and whether neutrinos are Dirac or Majorana particles.[4]
See also
Table of contents (84 articles)
Index
Full contents
References
- ↑ Particle Data Group (2022). "Review of Particle Physics". Progress of Theoretical and Experimental Physics 2022 (8): 083C01. doi:10.1093/ptep/ptac097.
- ↑ Fukuda, Y. (1998). "Evidence for Oscillation of Atmospheric Neutrinos". Physical Review Letters 81 (8): 1562-1567. doi:10.1103/PhysRevLett.81.1562.
- ↑ Ahmad, Q. R. (2002). "Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory". Physical Review Letters 89 (1): 011301. doi:10.1103/PhysRevLett.89.011301.
- ↑ Halzen, Francis; Martin, Alan D. (1984). Quarks and Leptons: An Introductory Course in Modern Particle Physics. Wiley. ISBN 978-0-471-88741-6.
Source attribution: Neutrino