True neutrality, complementary principle and the neutrality of our universe
| Autor: | Tsan Ung Chan |
|---|---|
| Přispěvatelé: | Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 1998 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Proton decay media_common.quotation_subject General Physics and Astronomy 01 natural sciences 7. Clean energy Fundamental interaction Lepton number Universe Baryogenesis Leptogenesis 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] Baryon number 010306 general physics Neutral particle media_common |
| Zdroj: | International Journal of Modern Physics E International Journal of Modern Physics E, World Scientific Publishing, 1998, 7, pp.747-763 |
| ISSN: | 0218-3013 |
| Popis: | The criteria of true neutrality would infer that the neutrino is not a truly neutral particle and thus would imply that ββoν decay is forbidden, in agreement with the absence of any evidence of this process so far. Any fundamental interaction admits at least one truly neutral particle as messenger. Materialization through SM interactions corresponds to the creation of a pair of baryon antibaryon or lepton antilepton. These pairs have the same quantum numbers as those of the neutral messenger responsible for their creation. No net change of baryon number or lepton number could be obtained through materialization. But, we know that our present Universe is composed of matter and is electrically neutral. This implies that the number of protons is strictly equal to the number of electrons. A possible scenario is put forward to account for these two fundamental experimental facts. The principle of complementarity would explain the exact balance of protons and electrons. Baryogenesis and leptogenesis would be the two faces of the same phenomenon. This scenario is compatible with the absence of ββoν decay and of proton decay and it does not require the unification of forces. This model could explain the asymmetric but nevertheless electrically neutral Universe; however, it could not account for the numerical value of the tiny excess of matter over antimatter in the early Universe. This value would be incidental. MC force with a structure analogous to that of weak force would ensure the neutrality of our Universe without requiring the strict matter-antimatter symmetry, rendering thus the concept of anti-Universe superfluous. |
| Databáze: | OpenAIRE |
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