High Energy Physics

由三名教员、两名研究助理和五名研究生组成的一组物理学家正在进行实验，研究基本粒子之间强相互作用的细节。该计划由三个主要部分组成：1。实验E776在布鲁克海文交替梯度同步加速器。通过质子与质子和中子与质子的相互作用产生的大约10亿个事件的大样本正在被研究。各种重要的物理课题正在以前所未有的详细程度进行研究。2. 一种大规模计算和在线数据采集的新方法。为了达到所需的灵敏度，该小组已经开发并正在实施一种与数据采集相结合的硬件计算系统。该系统达到了每秒41千兆次操作（相比之下，Cray X-MP为每秒1千兆次操作）和每秒32千兆字节的数据带宽。这种性能的实现成本约为Cray X-MP的2%。3. 实验E609在费米实验室Tevatron。布鲁克海文实验的大部分设备已经转移到费米实验室，在那里该项目将在更高的能量下继续进行。硬件的全部功能将用于研究罕见现象。

A Group of physicists consisting of three faculty, two research associates and five graduate students is performing experiments to study the details of the strong interactions among elementary particles. The program consists of three major components: 1. Experiment E776 at the Brookhaven Alternating Gradient Synchrotron. A large sample of about one billion events produced through the interaction protons with protons and neutrons with protons is being studied. A variety of important physics topics is being investigated in a detail never before possible. 2. A new approach to massive computation and on-line data acquisition. To achieve the sensitivity required, the group has developed and is now implementing a hardware computational system that acts in consort with the data acquisition. The system has achieved 41 gigaoperations per second (compared to 1 giga=operation per second for a Cray X-MP) and data bandwidths of 32 gigabytes per second. This performance has been achieved at about 2% of the cost of a Cray X-MP. 3. Experiment E609 at the Fermilab Tevatron. Much of the apparatus from the Brookhaven experiment has been moved to Fermilab where the program will continue at higher energy. The full power of the hardware will be used to investigate rare phenomena.