Support of the Cornell Electron Storage Ring (CESR) Facility

摘要 PHY-9310764卡尔·伯克曼康奈尔大学 该项目支持康奈尔大学核研究实验室的基本粒子物理学和加速器物理学的基础研究计划。该研究计划包括康奈尔电子储存环（CESR）的操作和加速器研究，CLEO-II探测器的研究，并为康奈尔高能同步加速器源（CHESS）提供寄生同步辐射光束。CESR加速器是一个电子-正电子碰撞束设施，经过优化可产生9至12 GeV范围内的强子终态，其年综合亮度远远超过其他类似机器。 CESR是许多加速器物理学研究的试验台;康奈尔大学在加速器物理学家的生产方面处于世界领先地位。 CESR的质心能量范围包括100%衰变为一对B介子的Uppermont（4S）共振，这使得CLEO II探测器能够非常清晰地研究底夸克衰变。 对撞机还能同时产生大量的粲介子和τ轻子，从而可以研究广泛的物理学课题。

ABSTRACT PHY-9310764 Karl Berkelman Cornell University This project supports a program of basic research in Elementary Particle Physics and Accelerator Physics at the Laboratory of Nuclear Studies of Cornell University. The research program includes the operation of, and accelerator studies on, the Cornell Electron Storage Ring (CESR), research on the CLEO-II detector, and provides, parasitically, synchrotron radiation beams for the Cornell High Energy Synchrotron Source (CHESS). The CESR accelerator, an electron-positron colliding beam facility optimized to produce hadron final states in the 9 to 12 GeV range, delivers a yearly integrated luminosity far exceeding other similar machines. CESR is a test-bed for many accelerator physics studies; the Cornell group leads the world in the production of accelerator physicists. The center-of-mass energy range of CESR includes the Upsilon(4S) resonance which decays 100% of the time into a pair of B-mesons, enabling very clean studies of bottom quark decays with the CLEO II detector. The collider also produces copious numbers of charm mesons and tau leptons simultaneously, allowing a broad range of physics topics to be studied.