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
345 2018-10-11 16:00  #1323, E6-2  Dirac electrons in a graphene quasicrystal file
344 2019-10-29 14:30  #1323, E6-2  Quantum sensing file
343 2019-05-02 16:00  #1323, E6-2  Anomalous optical properties of halide perovskites file
342 2019-04-11 16:00  #1323, E6-2  Massive screening for cathode active materials using deep neural network file
341 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
340 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
339 2018-10-18 16:00  #1323, E6-2  Applications of nonlinear optics for condensed matter researches file
338 2018-05-09 16:00  #1323, E6-2  Recent advances in thermoelectric bulk composites file
337 2017-01-09 16:00  Lecture Hall, College of Natural Sciences [#1501,E6-2]  Topological Defects and Phase Transitions" file
336 2016-07-28 16:00  #1323(E6-2. 1st fl.)  Low Dimensional Electrons: On the Road to Hybrid Quantum Systems
335 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
334 2022-07-21 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  Quintessential axions file
333 2019-11-14 16:00  #1323, E6-2  Semi-classical model of polariton propagation file
332 2017-12-15 09:20  E6-2, Lecture Room #1323  Workshop on Magnetism in Unconventional Superconductors 개최 file
331 2019-11-07 16:00  #1323, E6-2  Integrated quantum photonics with solid-state quantum emitters file
330 2018-05-29 16:00  #1323, E6-2  Investigation on metal nanostructure/semiconductor junction and its applications file
329 2020-10-23 14:00  E6-2 #1323  Plasmon spectroscopy of low-dimensional superconductors in fluctuating regime file
328 2018-07-13 14:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Loop Induced Single Top Partner Production and Decay at the LHC
327 2018-12-11 16:00  E6-2. 1st fl. #1323  Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
326 2017-08-31 14:00  #5318(E6-2. 5th fl.)  “Berry phase and nonlinear response: photocurrent in noncentrosymmetric insulators and Weyl semimetals” file