例文
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- The Upsilon is a flavourless meson called a quarkonium.
- where r is the effective radius of the quarkonium state, a and b are parameters.
- If so, then wouldn't this just result in an annihilation instead of a quarkonium meson?
- Heavy quarkonium states, provide an essential tool to study the early and hot stage of heavy-ion collisions.
- He has made significant contributions to brane-world models of extra dimensions, quarkonium physics and R-parity violating supersymmetry.
