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Bottom eta meson
Subatomic particle From Wikipedia, the free encyclopedia
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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.
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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
- Aubert, B.; et al. (2008). "Observation of the Bottomonium Ground State in the Decay ϒ(3S)→γη
b". Physical Review Letters. 101 (7): 071801. arXiv:0807.1086. Bibcode:2008PhRvL.101g1801A. doi:10.1103/PhysRevLett.101.071801. PMID 18764521. S2CID 17291017. - 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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