The bottom eta meson (
η
b) or eta-b meson is a flavourless meson formed from a bottom quark and its antiparticle. It was first observed by the BaBar experiment at SLAC in 2008, and is the lightest particle containing a bottom and anti-bottom quark.

See also

  • Eta and eta prime mesons, a similar particle with light quarks.
  • Quarkonium, the general name for mesons formed from a quark and the corresponding antiquark.
  • List of mesons

References

  1. Aubert, B.; et al. (2008). "Observation of the Bottomonium Ground State in the Decay
    ϒ
    (3S)→
    γ

    η
    b". Physical Review Letters. 101 (7): 071801. arXiv:0807.1086. Bibcode:2008PhRvL.101g1801A. doi:10.1103/PhysRevLett.101.071801. PMID 18764521. S2CID 17291017.
    ϒ
    (3S)→
    γ

    η
    b&rft.volume=101&rft.issue=7&rft.pages=071801&rft.date=2008&rft_id=https://api.semanticscholar.org/CorpusID:17291017#id-name=S2CID&rft_id=info:bibcode/2008PhRvL.101g1801A&rft_id=info:arxiv/0807.1086&rft_id=info:pmid/18764521&rft_id=info:doi/10.1103/PhysRevLett.101.071801&rft.au=Aubert, B.&rfr_id=info:sid/en.wikipedia.org:Bottom eta meson">
  2. Godfrey, S. (2008). "Searching high and low for bottomonium". Physics. Vol. 1. p. 11. Bibcode:2008PhyOJ...1...11G. doi:10.1103/Physics.1.11.



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