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Special Seminars 2017

Time: Thursday, 16 Nov 2017, 15:15
Place: Seminar room, Bothe Lab
Speaker: Prof. Andrzej Czarnecki, University of Alberta, Canada
Title: Theoretical prediction of the bound-electron g-factor

 

Time: Tuesday, 26 Sep 2017, 14:00
Place: Seminar Room Blaum
Speaker: Prof. Albert Viggiano, Plasma Chemistry Laboratory, Albuquerque New Mexico
Title: Recent Studies in Plasma Chemistry

Abstract

This talk will give an overview of recent work at the Plasma Chemistry Laboratory in Albuquerque New Mexico. The talk will start with chemistry relating to ionospheric medication involving chemi-ionization of lanthanide metals. I will then discuss a variety of metal ion reactions related to catalysis and the detailed mechanistic understanding that statistical modeling of temperature dependences can yield. Finally, results from a quantifiable technique to measure ion radical reactions will be shown.

 

Time: Tuesday, 12 Sep 2017, 15:00
Place: Central Seminar Room
Speaker: Prof. Yu-Hu Zhang, Institute of Modern Physics, CAS, Lanzhou, China
Title: Progress of mass measurements of short-lived nuclides at the heavy-ion storage ring in Lanzhou

Abstract

Recent commissioning of the Cooler Storage Ring at the Heavy Ion Research Facility in Lanzhou enabled us to conduct high-precision nuclear mass measurements at the Institute of Modern Physics in Lanzhou (IMP). In the past few years, mass measurements were performed using the storage-ring-based isochronous mass spectrometry (IMS) via the fragmentation of the energetic 36Ar, 40Ar, 58Ni, 78Kr, 86Kr, and 112Sn projectiles. Masses of short-lived nuclides on both sides of the β-stability line have been measured. Relative mass precisions of 10-6 ~10-7 are routinely achieved and some issues in the studies of nuclear structure and nuclear astrophysics have been addressed [1-6]. In this seminar, the technique details and experimental results are presented, and recent progress and some preliminary results are briefly introduced. The IMS with double ToF detectors for velocity measurements are also developed in CSRe, the future experiments using this double ToF IMS are discussed.

References:

[1]   B. Mei et al., NIM A 624, 109 (2010)
[2]   X. L. Tu et al., PRL 106, 112501 (2011)
[3]   X. L. Tu et al., NIM A 654, 213 (2011)
[4]   Y. H. Zhang et al. PRL 109, 102501 (2012)
[5]   X. L. Yan et al. ApJL 766, L8 (2013)
[6]   P. Shuai et al., PLB 735, 327 (2014)
[7]   X. Xu et al., PRL 117, 182503 (2016)
[8]   P. Zhang et al., PLB 767, 20 (2017)

 

Time: Thursday, 20 Apr 2017, 13:30
Place: Central seminar room, library building
Speaker: Dr. Manas Mukherjee, Center for Quantum Technologies, National University Singapore
Title: Testing many-body theory using a single barium ion