Lifetime measurement of Ds-mesons

Lifetime measurement of atoms consisting of π + and π − mesons

Measurement of the Lifetime Difference of Bd Mesons: Possible and Worthwhile?

We estimate the decay width difference ∆Γd/Γd in the Bd system including 1/mb contributions and next-to-leading order QCD corrections, and find it to be around 0.3%. We explicitly show that the time measurements of an untagged Bd decaying to a single final state isotropically can only be sensitive to quadratic terms in ∆Γd/Γd, and hence the use of at least two different final states is desired....

DØnote 4376 Measurement of Lifetime Ratio for Neutral and Charged B Mesons

The measurement of the lifetime ratio for neutral and charged B mesons was performed using the statistics collected by DØ experiment in Run II and corresponding to approximately 250 pb−1. B hadrons were reconstructed in semileptonic decays B → μ+νD∗(2010)−X, which are dominated by B decays and B → μνDX, which are dominated by B decays. The lifetime ratio was obtained from the variation of the r...

Aaij, R. et al. (2014) Measurement of the B ̄s0 meson lifetime in Ds+π−

Masses of D mesons, Ds mesons and charmonium states from twisted mass lattice QCD

We compute masses of D mesons, Ds mesons and charmonium states using Wilson twisted mass lattice QCD. We present results for spin J = 0, 1, 2, 3, parity P = −,+ and in case of charmonium also charge conjugation C = −,+. Computations are based on quark-antiquark creation operators and performed at three different unphysically heavy u/d quark masses allowing an extrapolation to the physical u/d q...