visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2018-07-02 15:00 
연사  
장소 Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus 

Seminar Invitation (July 2, 2018)

Speaker: Dr. Peter Winter (Argonne National Laboratory)

 

Date: July 2. 2018 (Monday)

 

Time: 3:00 PM

 

Venue: Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus

 

Topic: High Precision Magnetic Field Measurement for the Muon g-2 Experiment

 

Abstract:

 

The Muon g-2 Experiment (E989) at Fermilab will measure the anomalous magnetic moment of muon aμ with a precision of 140 part-per-billion (ppb), aiming at resolving the 3.6 standard deviation between the previous measurement at Brookhaven (E821) and the Standard Model calculation of aμ. The experimental concept uses a polarized muon beam stored in an extremely homogeneous storage ring magnetic field. Parity violation in the weak decay is used as a spin analyzer; the detected rate of the decay electrons oscillates with the frequency, ωa, in the magnetic field expressed in terms of the free proton Larmor frequency, ωp. Since aμ is derived from the ratio of ωa and ωp, both are equally important and systematic uncertainties must be kept below 70 ppb for each observable. A magnetic field measurement system was developed to measure the magnetic field experienced by the muons with an ultimate precision of 70 ppb. 378 new Nuclear Magnetic Resonance (NMR) probes and readout electronics were developed and installed to constantly monitor the field. An upgraded in-vacuum field mapping system scans the muon storage region over the full azimuth of the magnet. A special water-based NMR probe which has a well-measured geometry and low magnetic perturbation was designed to calibrate the probes of the field mapping system. All systems were successfully commissioned, and are currently in full operation for the first physics data taking run that started in February 2018. In this presentation will include an overview of the entire Muon g-2 experiment with special focus on the field measurement system. Since the experiment has started to take its first physics data, preliminary results from the ongoing run will be shown.

 

------------------------------------------------------------------------------------------------------------------------------------------------------

CAPP seminar will be held as above. Anyone interested in this topic is warmly welcome.

*************************************************************************************************************************************************************************************************

 

 

 

붙임 2. 포스터 - Peter Winter.pdf

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)
326 2023-11-30 10:30    [High-Energy Theory Seminar] 3d-3d correspondence and 2d N = (0,2) boundary conditions
325 2024-08-16 11:00    Cathodoluminescence for nanophotonics: Applications to plasmonic bandgap materials and perovskite semiconductors file
324 2020-01-17 16:00    Symmetry Breaking and Topology in Superfluid 3He file
323 2019-08-27 16:00    Critical current properties of Fe-based superconductors file
322 2024-09-26 14:00    Quantum spin nematic phase in a square-lattice iridate
321 2019-08-01 14:00    Low-density Superconductivity in SrTiO3 Probed by Planar Tunneling Spectroscopy file
320 2024-02-16 10:00    Optical conductivity of superconducting states driven by Van Hove singularities
319 2020-12-11 16:00    Atomic and electronic reconstruction at van der Waals interface in twisted 2D materials
318 2016-06-16 16:00    Quantum information processing using quantum dots and photonic crystal cavities
317 2019-06-27 14:00    Gapless Kitaev Spin Liquid to Loop and String Gases file
316 2024-12-17 15:00  Isaac H. Kim  Learning state preparation circuit for quantum phases of matter (Isaac H. Kim, UC Davis)
315 2025-03-14 14:00  Jeonghee Rho (SETI Institute)  JWST Imaging and Spectroscopy of the Supernova Remnant Cassiopeia A and Molecule and Dust Formation file
314 2019-05-08 16:00    Imaging valley dependent electron transport in 2D semiconductors file
313 2019-05-08 16:00    Imaging valley dependent electron transport in 2D semiconductors file
312 2021-05-17 17:00    Spin current generation and detection in uniaxial antiferromagnets file
311 2019-08-16 14:00    Multiferroic and Magnetoelectric Effects by Tailoring Interfacial Chemistry and Physics in Correlated Oxides file
310 2023-07-10 16:00    Electronic structures of magnetic and non-magnetic ordering in d- and f-electrons systems
309 2022-05-19 15:00    (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis
308 2022-05-19 15:00    (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis
307 2024-11-30 10:30  Joon Young Park  Towards probing topological phases in Corbino-geometry Josephson junctions on a topological insulator surface