Manchester Particle Physics Seminars, Colloquia and Meetings

Andrew Cheek: Particle and astronomical implications for direct detection

Friday, 7 February 2020 from to (Europe/London)
at Schuster ( 54-6-6.40 - Niels Bohr Common Room )
The expected recoil rate in dark matter direct detection experiments depend on the local distribution and particle nature of dark matter. The canonical spin-independent and spin-dependent interactions do not fully capture the possible signals these experiments may observe. A more complete analysis incorporates what is known as the Non-Relativistic Effective Field Theory (NREFT) basis. Using this we can determine whether direct detection experiments are currently optimizing their sensitivity. One possibility, is that experiments may be able to disentangle astrophysical and particle physics effects. This is becoming increasingly important as results from the Gaia satellite show that our usual assumptions about the local dark matter velocity distribution is likely wrong. This talk will be based on the two papers [1810.05576] and [1910.07536].