T meson

T mesons are hypothetical mesons composed of a top quark and either an up (
T⁰
), down (
T⁺
), strange (
T⁺
_s) or charm antiquark (
T⁰
_c).[1] Because of the top quark's short lifetime, T mesons are not expected to be found in nature. The combination of a top quark and top antiquark is not a T meson, but rather toponium. Each T meson has an antiparticle that is composed of a top antiquark and an up (
T⁰
), down (
T⁻
), strange (
T⁻
_s) or charm quark (
T⁰
_c) respectively.

References

C. Amsler; et al. (2008). "Review of Particle Physics: Naming Scheme for Hadrons" (PDF). Physics Letters B. Particle Data Group. 667 (1). Bibcode:2008PhLB..667....1A. doi:10.1016/j.physletb.2008.07.018.

External links

W.-M. Yao et al. (Particle Data Group), J. Phys. G 33, 1 (2006) and 2007 partial update for edition 2008 (URL: http://pdg.lbl.gov)

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[1] C. Amsler; et al. (2008). "Review of Particle Physics: Naming Scheme for Hadrons" (PDF). Physics Letters B. Particle Data Group. 667 (1). Bibcode:2008PhLB..667....1A. doi:10.1016/j.physletb.2008.07.018.