Abstract. A review of the latest results on charm lifetimes and D-mixing is presented. The e+e− collider experiments are now able to measure charm lifetimes quite precisely, however comparisons with the latest results from fixed-target experiments show that possible systematic effects could be evident. The new D-mixing results from the B-factories have changed the picture that is emerging. Alth...

Heavy Quarks will be abundantly produced in Heavy Ion Collisions at LHC energies. Both, the production of open heavy flavoured mesons and quarkonia will probe the strongly interacting medium created in these reactions. In particular, the ALICE detector will be able to measure heavy flavour production down to low transverse momentum, combining leptonic and hadronic channels, covering a large rap...

We study the fragmentation of the b quark in top decay in NLO QCD, within the framework of perturbative fragmentation, which allows one to resum large logarithms ∼ log(m 2 t /m 2 b). We show the b-energy distribution, which we compare with the exact O(α S) result for a massive b quark. We use data from e + e − machines in order to describe the b-quark hadronization and make predictions for the ...

We study a simplified model of lepton-flavoured complex scalar dark matter set up in the Dark Minimal Flavour Violation framework. In this Standard Model is extended by flavour triplet and charged fermionic mediator, through which couples to right-handed leptons Model. This interaction parameterized new $3\times 3$ coupling matrix $\lambda$. Consistent with field content model, also Model's app...

The bb̄ production cross section in 920 GeV proton-nucleus fixed target collisions is measured by observing double muonic decays of b-flavoured hadrons in the kinematic region −0.3 < xF(μ) < 0.15. A total number of 76 ± 12 bb̄ events is obtained with a likelihood fit of the signal and background simulated events to the data. The resulting cross section is σbb̄ = 16.2 ± 2.5stat ± 2.8sys nb/nucleon,...

Supersymmetric left-right models are well motivated extensions of the Minimal Supersymmetric Standard Model since they automatically contain the ingredients to explain the observed neutrino masses and mixings. Here we study a SUSY model in which the leftright symmetry is broken by triplets at a high scale leading to automatic R-parity conservation at low energies. The sparticle spectra in this ...