Conveners
DM VI
- Juri Smirnov (Ohio State University, CCAPP)
Extensive searches to probe the particle nature of dark matter (DM) have been going on for some decades now but, so far, no conclusive evidence has been found. Among various options, the Weakly Interacting Massive Particles (WIMP) remains one of the prime
possibilities as candidates for DM near the TeV scale. Taking a phenomenological view, such null results may be explained for a generic...
The kinematics of WIMP dark matter-nuclear scattering is drastically altered if the interaction is inelastic, i.e. dark matter is up-scattered to a heavier state with certain mass splitting. With $\mathcal{O}$(100) keV mass splitting inelastic dark matter will evade the search in most direct detection experiments, where the momentum transfer is limited either by the mass of target nuclei, or...
Semiconducting targets (such as Silicon and Germanium) are exceptionally sensitive detectors of sub-GeV Dark Matter (DM). An incident DM particle can scatter off the target electrons and excite them across the band gap. The scattering rate therefore crucially depends on the wave functions, and energies, of the target electrons. Usually the electronic states near the band gap are computed with...
Many minimal models of dark matter (DM) or canonical solutions to the hierarchy problem are either excluded or severely constrained by LHC and direct detection null results. In particular, Higgs Portal Dark Matter (HPDM) features a singlet scalar minimally coupled to the Higgs, and because the same coupling mediates both thermal freeze out and direct detection the measured dark matter relic...
Determining the distribution of dark matter in the Milky Way Galaxy is crucial to grounding searches for the particles comprising dark matter. Measurements of the galactic dark matter content currently rely on equilibrium assumptions to infer the forces acting upon stars from the distribution of observed velocities. Millisecond pulsars, with temporal stability rivaling even some terrestrial...
Recent results from the proton-proton collision data taken by the ATLAS experiment on the charmonium production and B_c production and exotic heavy hadrons will be presented. The measurement of J/psi and psi(2S) differential cross sections at large transverse momentum values will be reported as measured on the whole Run 2 dataset at 13 TeV centre-of-mass energy. The measurement of the...
An analysis of the B+→K+νν decay mode using 63~fb−1 of Υ(4S) data collected during the 2019 and 2020ab run by the Belle II experiment is reported. A new inclusive tagging method is used to enhance sensitivity to this rare process. The method is validated with dedicated samples including 9.2 fb−1 of data taken off resonance.