Abstract:
Probing the nature of neutrinos, Dirac or Majorana, not only helps to understand the origin of neutrino masses, which are not predicted by the Standard Model, but also may help to explain the matter-antimatter asymmetry in the universe. Neutrinoless double-beta decay is so far the most promising probe to test whether neutrinos are Majorana particles. Experimental challenges to search for this decay include obtaining a large exposure, as well as achieving a low background and high energy resolution. A survey of various experimental techniques is presented, going from semiconductors to bolometers, and from time projection chambers to liquid scintillators. The current status of the field and the goal of the next generation experiments are discussed.
Biography:
2007年兰州大学国家理科基础科学研究和教学人才培养基地本科,2009年德克萨斯农工大学科默斯分校硕士,2015年德克萨斯大学奥斯汀分校博士。先后在德克萨斯大学奥斯汀分校和苏黎世大学从事博士后研究。他曾参与了费米实验室的长基线中微子振荡实验MINOS、MINOS+和NOvA,以及在Ge-76中搜寻无中微子双贝塔衰变的GERDA和LEGEND实验。2021年加入上海交通大学。目前的研究兴趣包括中微子质量顺序的测量、无中微子双贝塔衰变的搜寻等。
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