We present the most recent $BABAR$ searches for reactions that could
simultaneously explain the presence of dark matter and the
matter-antimatter asymmetry in the Universe. This scenario predicts
exotic $B$-meson decays of the kind $B\to\psi_{D} {\cal B}$, where
$\cal{B}$ is an ordinary matter baryon (proton, $\Lambda$, or
$\Lambda_c$) and $\psi_D$ is a dark-sector anti-baryon,...
Heavy meson decays with missing energy in final state offer interesting avenues to search for light dark matter (DM) particles. In this context, we show that such DM interactions also affect lifetime difference in neutral meson-antimeson mixing. We consider general dimension-six effective quark interactions involving a pair of light DM fields, and calculate their contributions to lifetime...
Recent results on open heavy flavour and charmonium production from ATLAS experiment with Run-2 data are presented. This covers the double differential measurements of J/ψ and ψ(2S) production, D mesons and B+ production at √s=13 TeV
ATLAS has used the W and Z boson production processes to perform a range of precision measurements of SM parameters. The recoil of the Z-boson is sensitive to quark and gluon emissions and is used to determine the strong coupling constant in a novel approach. The production rate of Z+jet events with large missing transverse momentum is used to measure the decay width of the Z boson decaying to...