应稀有同位素前沿科学中心邀请，欧洲极端光基础设施-核物理部的Dimiter L. Balabanski教授将于2024年8月12日来校进行学术交流并作报告。

       报告题目：What can we learn from experiments with γ beams

       报告时间：2024年8月12日（星期一）10 : 00

       报告地点：兰州大学二分部现物楼214室

 

       欢迎广大师生参加！

 

【报告摘要】

       Photonuclear physics was reviewed recently and a number of open problems were pointed out which await to be resolved using high-brilliance γ-ray beams [1]. The talk will address some of these questions, which are related to precise measurements of total or partial cross sections of photonuclear reactions, correlation measurements in photo-fission at the threshold and in the region of the IVGDR, etc. The readiness for such measurements at ELI-NP will be discussed and the state-of-the-art instrumentation, which will be available for the users will be presented. The suggested day-one flagship experiments at the facility will be highlighted.

       The possibility to utilize γ-beams with orbital angular momentum (OAM) in photonuclear experiments will be discussed. It will be demonstrated that this technique is a game-changer in the field and a few selected physics problems and classes of experiments, related to, e.g., changes of photonuclear cross sections in such reactions [2], as well as the possibility to address nuclear excitations and study γ-ray strength functions with multipolarity higher that one, L ≥ 1, by suppression of the IVGDR, will be discussed.

References:

       1.A. Zilges, D. L. Balabanski, N. Pietralla, J. Isaak, Prog. Part. Nucl. Phys. 122, 103903 (2022).

       2.Yi Xu, D. L. Balabanski, V. Baran, C. Iorga, C. Matei, Phys. Lett. B 852 138622 (2024).

【报告人简介】

       Dimiter L. Balabanski is the senior researcher in Extreme Light Infrastructure - Nuclear Physics (ELI-NP), the Head of Gamma Driven Experiments Department, and professor of University Politehnica of Bucharest (UPB). Dimiter L. Balabanski’s research interests include photonuclear processes and nuclear photonics, structure of atomic nuclei at high angular momenta, structure of atomic nuclei away from the stability line, dynamic symmetries in atomic nuclei, design of multidetector systems for nuclear spectroscopy etc. He has published more than 250 papers in PPNP, PRL, Nat. Commun., and so on. He is the membership of European physical society, Bulgarian Union of Physicists, Bulgarian antarctic institute, Bulgarian nuclear society, and he has received many awards including Pythagoras prize of the Bulgarian ministry of education, Youth and science for an established scientist in the field of natural sciences and mathematics.

 

                                                                                                                                                                         稀有同位素前沿科学中心

2024年8月11日