visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-07-26 10:00 
연사  
장소 CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus 

물리학과 야니스 교수 연구실/액시온 및 극한상호작용 연구단 (CAPP/IBS) 입니다.

아래 세미나에 관심 있으신 연구자들의 참석을 요청드립니다.

CAPP seminars will be held. Anyone interested in this topic is warmly welcome.

 

Speaker: Dr. Chelsea BARTRAM (SLAC National Laboratory)
 
Date: July 26, 2023 (Wednesday)   
 
Time: 10:00 AM (KST)
 
Venue: CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus
 
Meeting ID: 610 806 8959
Passcode: 131015
 
Topic: Am Expansive Search for Dark Matter with ADMX and DM Radio
 
Abstract:
One of the most well-motivated dark matter candidates is the axion, a particle that is predicted by the solution to another long-standing mystery in physics, the strong CP problem. An established axion search technique leverages the Inverse Primakoff effect by which an axion converts to a photon in a magnetic field. This so-called ‘photon channel’ can be probed using an ‘axion haloscope’ which consists of an exquisitely sensitive receiver chain in a strong magnetic field. Recent work has further advanced the theoretical motivation for axions over a wide range of masses. 

The Axion Dark Matter eXperiment (ADMX) implements one form of haloscope that relies on a microwave cavity. Previously, the ADMX collaboration has searched for axions at DFSZ sensitivity from 950-1020 MHz and two times DFSZ sensitivity from 800-950 MHz. Preliminary results from a more recent search will be presented, as well as plans to cover from 1020 to 1350 MHz with the next data-taking run. 

 

 

At low masses, O(0.1-100neV), a promising search technique uses a lumped-element detector.  A prototype experiment, ABRACADABRA-10cm, demonstrated the viability of the lumped-element approach and set world-leading limits on low-mass axions. The DMRadio program will extend the technique with a series of larger, more sensitive detectors that will be capable of probing QCD axions and axion-like particles over a wide range of masses below 1 μeV

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
85 2024-06-03 11:00    New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part1 file
84 2024-06-12 16:00    New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part2 file
83 2016-09-22 15:30    Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
82 2016-09-22 15:30    Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
81 2015-09-14 14:00    Ultrafast X-ray Studies on Dynamics Matter in Extreme Conditions
80 2018-12-07 14:30    Spin generation from heat and light in metals file
79 2024-05-14 16:00    [High Energy Theory Seminar] Minimal Production of Prompt Gravitational Waves during Reheating.
78 2017-09-22 16:00    Unexpected Electron-Pairing in Integer Quantum Hall Effect file
77 2017-09-22 14:30    Quantum Electronic Transport in Graphene Hybrid Nanostructures file
76 2024-08-14 11:00    Pair Density Waves and Supercurrent Diode Effect in Altermagnets
75 2018-10-25 16:00    Abelian and non-Abelian dark photons file
74 2016-11-1 10:30    Time scale dependent dynamics in InAs/InP quantum dot gain media
73 2016-04-04 09:30    Radio frequency engineering
72 2023-06-14 16:00    [CAPP seminar] EMC at CERN file
71 2023-06-15 16:00    [CAPP Seminar] Cryogenic electronics for ion traps file
70 2016-05-24 16:00    Electronic and magnetic properties of 2D transition-metal thiophosphates and tunability of magnetic order with carrier density
69 2017-06-02 14:30    Quasiparticle Interference and Fourier transform scanning tunneling spectroscopy in WTe2 (Weyl semimetal) file
68 2017-09-22 13:00    Superconductor-metal-insulator transition in thin Tantalum films file
67 2016-07-07 14:00    Let there be topological superconductors
66 2015-08-04 11:00    Propagation of ultrasound through two- and three-dimensional strongly scattering media