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 |
---|---|---|---|---|
176 | May. 12 (Fri.), 01:30 PM | E6-2. 1st fl. #1323 | Dr. Young Kuk Kim | Topological Dirac insulator |
175 | May. 13 (Fri.), 04:00 PM | 자연과학동(E6-2) 1st fl. #1323 | Dr. Yosep Kim(Center for Quantum Information, KIST) |
High-fidelity iToffoli gate for fixed-frequency superconducting qubits
![]() |
174 | 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
![]() |
173 | October 15 (Mon.), 16:00 PM | #1323, E6-2 | Dr. Yongjoo Baek |
Universal properties of macroscopic current-carrying systems
![]() |
172 | Sep. 02(Fri) 4:00 PM | E6-2(1st fl) #1323 | Dr. Yong-Joo Doh, Department of Physics and Photon Science, GIST | Quantum Electrical Transport in Topological Insulator Nanowires |
171 | Sep. 02(Fri) 2:30 PM | E6-2(1st fl.), #1323 | Dr. Yong-Hyun Kim,Graduate School of Nanoscience and Technology, KAIST | Nanoscale Thermal Physics: Seebeck Effect and Nanoscale Friction |
170 | 2015/12/01, 4PM | E6-2, #1323 | Dr. Yeong Kwan Kim(Lawrence Berkeley National Laboratory, USA) | Introducing extra dimensions to spectroscopic studies of advanced quantum materials |
169 | 2015/11/10, 4PM | E6-2, #1323 | Dr. Woosuk Bang (Physics division, Los Alamos National Laboratory) | Rapid heating of matter using high power lasers |
168 | October 16 (Tue.), 10:00 AM | #1323, E6-2 | Dr. Won-Ki Cho |
Capturing protein cluster dynamics and gene expression output in live cells
![]() |
167 | Jun. 18 (MON), 10:00 AM | E6-2. 2nd fl. #2502 | Dr. Thibault VOGT |
Rydberg electromagnetically induced transparency and microwave-to-optical conversion using Rydberg atoms
![]() |
166 | Mar. 29 (Fri.), 04:00 PM | E6-2. 1st fl. #1323 | Dr. Taeyoung Choi |
Coherent Quantum Control and Magnetism on atoms – Trapped ion and ESR STM
![]() |
165 | 2016/03/11 4 PM | E6-2. 1st fl. #1501 | Dr. Tae-Hwan KIM (POSTECH) | Jan. Switching handedness of of chiral solitons in Z4 topological insulators |
164 | Apr. 2 (Fri.), 02:30 PM | Online(Zoom) | Dr. Tae Hyun Kim (SNU) | Quantum computing and entanglement generation using trapped ions and photons |
163 | May. 14 (Fri.), 02:30 PM | Online seminar | Dr. Suyong Jung(KRISS) |
Electrically tunable spin valve effect in vertical van-der-Waals magnetic tunnel junctions
![]() |
162 | 2015/11/28, 10AM | E6-2, #1323 | Dr. Suyong Jung (Korea Research Institute of Standards and Science) | Electron Tunneling Spectroscopy of Single and Bilayer Graphene with Hexagonal Boron Nitride as Tunneling Barrier |
161 | May. 11(Wed), 4pm | E6-2. #1323 & Zoom | Dr. Sunok Josephine Suh (Kavli Institute for Theoretical Physics) | Gravity as a phenomenon in quantum dynamics |
160 | May. 25(Wed), 4pm | E6-2. 1st fl. #1323 / Zoom | Dr. Sungwoo Hong (Enrico Fermi Institute at University of Chicago) | Uncovering New Lampposts for Dark Matter: Continuum or Conformal |
159 | May 1 (Wed), 4:00 PM | #1323, E6-2 | Dr. Sungkyun Choi |
Raman and x-ray scattering study on correlated electron systems: two case examples
![]() |
158 | April 13 (Fri.), 10am | #1323 (E6-2, 1st fl.) | Dr. Sungkun Hong |
Quantum meets Mechanics: from Quantum Information to Fundamental Research
![]() |
157 | 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
![]() |