장소 | Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus |
---|---|
일시 | July 2. 2018 (Monday) 3:00 PM |
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.
*************************************************************************************************************************************************************************************************
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
공지 | 2019/09/18 - 12/5 | Seminar Room #1323 | Prof. David Schuster and etc. | Fall 2019: Physics Seminar Serises |
공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
322 | Aug. 16 (Wed.), 4 PM | #1322 (E6-2. 1st fl.) | Prof. Noejung Park (UNIST) |
Phonon-driven spin-Floquet valleytro-magnetism
![]() |
321 | Mar. 24 (Fri.), 4:00 PM | #1323 (1st fl. E6-2) | Dr. SangWook Lee | Graphene based nano electronics and nano electromechanics; focusing on precise control of nano structures for studying accurate physical properties |
320 | Mar. 24 (Fri.), 2:30 PM | #1323 (1st fl. E6-2). | Dr. MahnSoo Choi | Topological Dynamics |
319 | Nov. 3 (Fri.), 2:30 PM | #1323 (1st fl., E6-2.) | Dr. MinChul Lee(Department of Applied Physics, Kyung Hee Univ.) |
Quantum Resistor-Capacitor Circuit with Majorana Edge States
![]() |
318 | Nov. 3 (Fri.), 4:00 PM | #1323 (1st fl., E6-2.) | Dr. SungDae Ji (Max Planck POSTECH/Hshinchu Center (MPK)) |
Expedition to the Kitaev Quantum Spin Liquid: Hunting for Majorana fermions
![]() |
317 | June 14, 2016 (Tue) 3PM | #1323 (E6-2 1st fl.) | Prof. Seungyong Hahn, Florida State University | No-Insulation High Temperature Superconductor Magnet Technology for Compact, Reliable, and Low-Cost High Field DC Magnets |
316 | October 16 (Wed), 4:00pm | #1323 (E6-2, 1st fl.) | Dr. Jaewon Song |
Emergent black holes and monopoles from quantum fields
![]() |
315 | October 29 (Tue.), 10:00am | #1323 (E6-2, 1st fl.) | Prof. Se Kwon Kim |
Unconventional Spin Transport in Quantum Materials
![]() |
314 | October 29 (Tue.), 4:00pm | #1323 (E6-2, 1st fl.) | Dr. Seung-Joo Lee |
Particles and Gravity via String Geometry
![]() |
313 | April 13 (Fri.), 10am | #1323 (E6-2, 1st fl.) | Dr. Sungkun Hong |
Quantum meets Mechanics: from Quantum Information to Fundamental Research
![]() |
312 | October 31 (Thu.), 10:00am | #1323 (E6-2, 1st fl.) | Dr. Seung-Sup Lee |
Kondo meets Hubbard: Impurity physics for correlated lattices
![]() |
311 | April 11 (Wed), 4:00pm | #1323 (E6-2, 1st fl.) | Dr. Young-Sik Ra |
Non-Gaussian states of multimode light generated via hybrid quantum information processing
![]() |
310 | April 11 (Wed), 1:30pm | #1323 (E6-2, 1st fl.) | Dr. Yongsoo Yang |
Probing 3D Structure and Physical Properties of Materials at the Single-Atom Level
![]() |
309 | Sep. 12 (Tue.), 4 PM | #1323 (E6-2. 1st fl.) | Prof. Yi. Zhou (The Zhejiang Univ.) |
Exact Solution for the Interacting Kitaev Chain at Symmetric Point
![]() |
308 | Sep. 13 (Wed.), 4 PM | #1323 (E6-2. 1st fl.) | Prof. Yi. Zhou (The Zhejiang Univ.) |
An Introduction to Quantum Spin Liquids
![]() |
307 | Sep. 26 (Tue.), 11AM | #1323 (E6-2. 1st fl.) | Dr. Yukiaki Ishida / ISSP, University of Tokyo | Time-resolved ARPES study of Dirac and topological materials |
306 | Apr. 28 (Fri.), 04:00 PM | #1323 (E6-2. 1st fl.) | Dr. Minkyung Jung Research Institute, DGIST | Carbon nanotubes coupled to superconducting impedance matching circuits |
305 | Jun. 2 (Fri.), 4:00 PM | #1323 (E6-2. 1st fl.) | Dr. Sang Wook Kim |
Maxwell's demon in quantum wonderland
![]() |
304 | July. 14 (Fri.), 3:00 PM | #1323 (E6-2. 1st fl.) | Dr. Jun Hyun Lee / University of Maryland |
Chiral anomaly in disordered Weyl semimetals
![]() |
303 | Nov. 28 (Tue.), 4:00 PM | #1323 (E6-2. 1st fl.) | Samindranath Mitra, Editor at Physical Review Letters |
Physics after the lab and the desk: Your work in PRL
![]() |