[m(χc1) = 3510.71±0.04±0.09 MeV; m(χc2) = 3556.10±0.06±0.11 MeV] [m(χc2) – m(χc1) = 45.39±0.07±0.03 MeV] [Γ(χc2) = 2.10±0.20±0.02 MeV] Today, at the open session of the Large Hadron Collider Committee, LHCC,…
Measurement of R(J/ψ): the ratio of branching fractions between Bc+→J/ψτ+ντ and Bc+→J/ψμ+νμ using τ+→ μ+νμ ντ decays. [R(J/ψ) = 0.71±0.17±0.18] Today, at the open session of the Large Hadron Collider…
The LHCb collaboration has reached a symbolic milestone this morning, announcing that the experiment has recorded a luminosity of 6 fb-1 integrated over the whole period of data taking 2010-2017.…
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