[Physics-grads-open] PASS talk on Monday

[Pooyan Goodarzi]

Reminder: happening in 2 hours.


On Thu, Nov 14, 2024 at 22:09 Pooyan Goodarzi <pgood007 at ucr.edu> wrote:

> Hi all,
>
> We will have our next PASS talk on Monday with Michela talking about Argon
> Dark Matter detectors. Please join us on *November 18th (Monday)* at
> *noon* (from 12:00 pm to 1:00 pm) in the *Nebula Room* (PHYS 3027).
>
>
>
> *Michela Lai, PhD *
>
> Monday, 12:00 pm, Nebula Room (PHYS 3027)
> *Diving into the unknown: rare event searches with argon detectors*
>
> Liquid argon, a key player in our quest to unravel the physics beyond the
> standard model, is indeed one of the most sensitive targets for GeV-scale
> dark matter candidates, such as Weakly Interacting Massive Particles
> (WIMPs), as demonstrated by the DEAP-3600 experiment and DarkSide-50
> experiment. The unique R&D has led to the design of the next experiment
> within the Global Argon Dark Matter collaboration, DarkSide-20k, currently
> under construction at LNGS. Its 50-tonne ultra-pure argon target will allow
> for investigating for the very first time in argon dark matter-nucleon
> cross-section as low as 7.4 x 10^{-48} cm^2 for a WIMP mass of 1 TeV/c^2 in
> a 200 t yr run. At the same time, the first calibrations on superheated
> argon are proceeding within the Scintillating Bubble Chamber demonstrator,
> whose setup at SNOLAB shows a projected sensitivity down
> to 10^{−43} cm^2 at 1 GeV/c^2. On the other hand, argon has served as an
> active veto for the neutrinoless double beta decay of 76-Germanium, first
> in GERDA and now in LEGEND-200, whose collaboration recently showed their
> newest lower limit at 1.0 x 10^{27} year, confirming the substantial
> background rejection possible thanks to the argon bath and pushing for the
> extension of this technology also to the future LEGEND-1000, where the
> argon would be extracted in the URANIA plant, aiming for the same mBq/kg
> argon radioactivity level also at the very base of DarkSide-20k's
> success.
>
>
> If you’re interested in sharing your work as a speaker, please feel free
> to add your name to the spreadsheet [Google Sheet
> <https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing>
> ].
>
> Best,
> Pooyan
> Physics and Astronomy Student Seminar (PASS)
>
>
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