G. S. Atoian, G. I. Britvich, S. K. Chernichenko, S. Dhawan, V. V. Issakov, O. V. Karavichev, T. L. Karavicheva, V. N. Marin, A. A. Poblaguev, I. V. Shein, A. P… 展开作者
G. S. Atoian, G. I. Britvich, S. K. Chernichenko, S. Dhawan, V. V. Issakov, O. V. Karavichev, T. L. Karavicheva, V. N. Marin, A. A. Poblaguev, I. V. Shein, A. P. Soldatov, M. E. Zeller
Shashlyk electromagnetic calorimeter modules with an energy resolution of about 3%/sqrt{E (GeV)} for 50-1000 MeV photons has been developed, and a prototype tested. Details of these improved modules, including mechanical construction, selection of wave shifting fibers and photo-detectors, and development of a new scintillator with improved optical and mechanical properties are described. How the modules will perform in a large calorimeter was determined from prototype measurements. The experimentally determined characteristics of the calorimeter prototype show energy resolution of sigma_E/E=(1.96+-0.1)% \oplus (2.74+-0.05)%/sqrt{E}, time resolution of sigma_T = (72+-4)/sqrt{E} \oplus (14+-2)/E (ps), where photon energy E is given in GeV units and \oplus means a quadratic summation. A punch-through inefficiency of photon detection was measured to be ε= 5*10^{-5} (Θ>5 mrad).
Machine Learning Approaches for Improved Scalability of Metallic Magnetic Calorimeters
GSI Helmholtzzentrum für Schwerionenforschung(GSI亥姆霍兹重离子研究中心);Helmholtz-Institute Jena(耶拿亥姆霍兹研究所);Institute for Optics- and Quantumelectronics, Friedrich-Schiller-University Jena(耶拿弗里德里希·席勒大学光学与量子电子学研究所);Hasso-Plattner-Institute(哈索·普拉特纳研究所)
Kinematic Fitting of electromagnetic calorimeter data - an improved method
Helmholtz-Institut für Strahlen- und Kernphysik and Cluster of Excellence ”Color meets Flavor”, Universität Bonn, Germany(波恩大学斯特拉斯尔与核物理亥姆霍兹研究所及“颜色遇见味道”卓越集群)
Design and Performance Simulation of the Electromagnetic Calorimeter at EicC
Institute of Modern Physics, Chinese Academy of Sciences(中国科学院近代物理研究所);School of Nuclear Science and Technology, University of Chinese Academy of Sciences(中国科学院大学核科学与技术学院)
The next generation of $μ -> e γ$ and $μ -> 3e$ CLFV search experiments
我们探讨了扩展目前的带电轻子味违反衰变$μ -> e γ$和$μ -> eee$搜索的灵敏度的可能性。未来的设施,如费米实验室的X项目,可以提供更强的停止$μ^+$光束,促进更灵敏的搜索,但也需要改进的探测器。目前的搜索受到偶然和物理背景的限制,以及被阻止的μ子的总数。用于$μ -> e γ$搜索的当前检测器中的限制因素之一是量热计的光子能量分辨率。我们提出了一个新的快速蒙特卡罗模拟的概念设计的一个新的实验概念,检测转换$e^+e^-$对信号光子,利用改进的能量分辨率对光谱仪的基础上硅带电粒子跟踪器。我们还研究了下一代$μ\to eee$搜索实验的相关检测器设计。
Recent GasPM advances: photon-feedback mitigation and LaB$_{6}$ photocathode studies
Nagoya University(名古屋大学);High Energy Accelerator Research Organization (KEK)(高能加速器研究机构);The Graduate University for Advanced Studies (SOKENDAI)(高级研究大学院大学);Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI)(小林-益川粒子宇宙起源研究所)