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)
434 2018-10-04 16:00    Engineering light absorption in an ultrathin semiconductor metafilm file
433 2018-10-11 16:00    Dirac electrons in a graphene quasicrystal file
432 2018-10-12 14:30    Quantum Advantage in Learning Parity with Noise file
431 2018-10-12 16:00    Direct observation of a two-dimensional hole gas at oxide interfaces file
430 2018-10-15 16:00    Universal properties of macroscopic current-carrying systems file
429 2018-10-16 10:00    Capturing protein cluster dynamics and gene expression output in live cells file
428 2018-10-18 10:00    Understanding membrane protein folding using single-molecule force techniques file
427 2018-10-18 16:00    Applications of nonlinear optics for condensed matter researches file
426 2018-10-19 10:00    Energy conversion processes during magnetic reconnection in a laboratory plasma file
425 2018-10-24 10:30    Photonic integration of next-generation clocks and Hertz-absolute-accuarcy optical frequenncy synthesizers file
424 2018-10-25 16:00    Abelian and non-Abelian dark photons file
423 2018-10-26 16:00    Coexisting triple-point and nodal-line topological magnons and thermal Hall effect in pyrochlore iridates file
422 2018-11-01 16:00    Direct holography from a single snapshot file
421 2018-11-08 16:00    Conformality lost file
420 2018-11-09 14:30    Moiré superlattices – from twisted bilayer graphene to quasicrystal file
419 2018-11-09 16:00    Quantum sensing and imaging with diamond defect centers for nano-scale spin physics file
418 2018-11-21 15:00    Engineering topological quantum physics at the atomic scale file
417 2018-11-22 15:00    Experimental and Computational Study on Physical Properties based on Granular System file
416 2018-11-23 15:00    Entanglement string and Spin Liquid with Holographic duality file
415 2018-11-29 16:00    양자 칸델라 실현을 위한 단일 광자 발생장치 개발 file