visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2018-07-02 15:00 
일시 July 2. 2018 (Monday) 3:00 PM 
장소 Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus 
연사 Dr. Peter Winter (Argonne National Laboratory) 

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 장소 제목
280 2019-04-19 16:00  E6-2. 1st fl. #1323  Graphene and hBN heterostructures file
279 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
278 2019-04-26 16:00  #1323, E6-2  Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
277 2019-05-01 16:00  #1323, E6-2  Raman and x-ray scattering study on correlated electron systems: two case examples file
276 2019-05-02 16:00  #1323, E6-2  Anomalous optical properties of halide perovskites file
275 2019-05-03 11:00  E6-2. 2st fl. #2502  Exotic Magnetism file
274 2019-05-08 16:00  E6 Room(#1323)  Imaging valley dependent electron transport in 2D semiconductors file
273 2019-05-09 16:00  #1323, E6-2  Quantum Optical Sensing Using Single Photons And Single Photon Emission from Single Emitters file
272 2019-05-21 16:00  #5318, E6-2  Classification of flat bands according to the band-crossing singularity of Bloch wave functions file
271 2019-05-24 16:00  #1323, E6-2  Infrared spectroscopy study on metal-insulator transitions in layered perovskite iridates file
270 2019-05-30 16:00  #1323, E6-2  Tuning the excitonic properties of semiconductors with light-matter interactions file
269 2019-05-31 11:00  #1323, E6-2  Cavity QED with Spin Qubits file
268 2019-06-04 17:00  #1323, E6-2  Stochastic nature of bacterial eradication using antibiotics file
267 2019-06-12 15:00  Rm# 1323, E6-2  The relation between free and interacting fermionic SPT phases file
266 2019-06-17 10:30  #1323, E6-2  Chiral Spintronics file
265 2019-06-24 11:00  E6-2, #1323  Topological photonic anomalies file
264 2019-06-27 14:00  #2502, E6-2  Gapless Kitaev Spin Liquid to Loop and String Gases file
263 2019-06-28 13:30  #1323, E6-2  Magnetic domains and domain wall conduction in pyrochlore iridate thin films and heterostructures file
262 2019-06-28 14:00  E6-2, #1322  1st Research-exchange meeting of computational material physics file
261 2019-07-03 15:00  E6-2, 2501  Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics" file