Bulletin of the American Physical Society
86th Annual Meeting of the APS Southeastern Section
Volume 64, Number 19
Thursday–Saturday, November 7–9, 2019; Wrightsville Beach, North Carolina
Session J01: Direct and Indirect Dark Sector Detection |
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Chair: Conor Henderson, University of Alabama Room: Holiday Inn Resort Causeway/Masonboro |
Saturday, November 9, 2019 10:30AM - 11:00AM |
J01.00001: Looking for Dark Matter in Northern Canada: The SuperCDMS SNOLAB experiment Invited Speaker: Tarek Saab The Universe is a wild and woolly place, simultaneously very cold (with a CMB temperature of 2.7 K) and exceedingly hot (full of $\sim 10^6$ K intergalactic x-ray emitting gas), and full of exotic components like the strangely named Cold Dark Matter (whose temperature in our Solar neighborhood is $\sim 10^7$ K for typical WIMP models). In an effort to understand the inner workings of the Universe, physicists (i.e. The SuperCDMS collaboration), are making use of highly sensitive, low-background cryogenic detectors to potentially detect energy deposited by the flux of dark matter particles streaming through the Earth. This talk will present the ongoing efforts in building the SuperCDMS experiment as well as future operational plans to ultimately deploy an array of 24 silicon and germanium detectors at SNOLAB in Sudbury, Canada, with the goal of improving sensitivity to light dark matter particles by orders of magnitude compared to existing limits. [Preview Abstract] |
Saturday, November 9, 2019 11:00AM - 11:30AM |
J01.00002: Searching for Axion Dark Matter with the ADMX experiment Invited Speaker: Jihee Yang The axion is a hypothetical particle arising from Peccei-Quinn solution to the strong CP problem in quantum chromodynamics. Axions with $\mu$eV masses are a prominent cold dark matter (CDM) candidate. The Axion Dark Matter eXperiment (ADMX) is searching for CDM axions in the halo of our galaxy with an axion haloscope: a high-$Q$ resonator immersed in a strong magnetic field. Over the years, ADMX has achieved a significant improvement of measurement sensitivity by implementing a dilution refrigerator and a low noise microwave receiver. As a result, ADMX has successfully completed axion searches with unprecedented sensitivity, covering the two most established axion models (KSVZ and DFSZ). We will present an overview of the ADMX experiment including the development of the detector and search results over an axion mass range of 2.66--3.31 $\mu$eV. We will also discuss the further search plans of ADMX in the near term and beyond. [Preview Abstract] |
Saturday, November 9, 2019 11:30AM - 12:00PM |
J01.00003: Searching for Dark Matter with the LZ experiment Invited Speaker: Pavel Zarzhitsky LUX-ZEPLIN (LZ) is a next-generation direct detection dark matter detector. The experiment is currently under construction and located underground at the 4850-feet level of the Sanford Underground Research Facility (SURF) in Lead, South Dakota. LZ is aimed to search for weakly interacting massive particles (WIMPs) using a two-phase time projection chamber (TPC) containing 7 tonnes of purified liquid Xe. The projected spin-independent cross section sensitivity for a 40 GeV/c$^{\mathrm{2}}$ WIMP mass is 1.6 \texttimes 10$^{\mathrm{-48}}$ cm$^{\mathrm{2}}$ for 1000 days livetime. The experiment is in the construction phase from 2018 and expected to start data taking in 2020. In this talk, I will present an experimental overview and the current detector status. [Preview Abstract] |
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