U.S.-Brazil Cooperative Nuclear Physics Research

9515510贝南森这个美国-巴西合作研究项目由沃尔特·贝南森领导的密歇根州立大学的6名美国核物理学家和联邦大学圣保罗大学(Alex Szanto De Toledo)的6名巴西合作者组成。里约热内卢大学(卡洛斯·贝尔图拉尼)和联邦弗卢米嫩塞大学(纳尔逊·卡林)进行了4组不同的实验。涉及放射性核束的四项雄心勃勃的测量是：晕核的库仑解离；对质子滴线附近水平和不稳定核反应速率的天体物理测量；对几个奇异核的质量和能量的函数的总截面测量；以及对14N+12C反应碎片核温度的测量。前三个实验将在密歇根州立大学的国家超导回旋实验室(NSCL)进行，最后一个实验将在圣保罗大学的Pelletron设施进行。计划中的一系列测试将极好地利用圣保罗的低能量设施，那里可以获得比美国实验室更多的束流时间。两国一群顶尖的核物理学家所产生的相互作用应该会让美国和巴西的科学界受益。作为研究工作的一部分，学生和博士后研究人员也将前往巴西。***

9515510 Benenson This U.S.-Brazil collaborative research project combines 6 U.S. nuclear physicists from Michigan State University, led by Walter Benenson, with 6 Brazilian collaborators from the University of Sao Paulo (Alex Szanto de Toledo), Federal Univ. of Rio de Janeiro (Carlos Bertulani), and the Federal Fluminense University (Nelson Carlin) to conduct 4 different collections of experiments. The four ambitious measurements involving radioactive nuclear beams are: coulomb disassociation of halo nuclei; astrophysical measurements of levels near the proton drip line and reaction rates of unstable nuclei; total cross section measurements as a function of mass and energy for several exotic nuclei; and measurements of the nuclear temperature of fragments from the 14N + 12C reaction. The first three experiments will be conducted at National Superconducting Cyclotron Laboratory (NSCL) at MSU and the last one at the University of Sao Paulo's Pelletron facility. The projected series of tests will make excellent use of the lower-energy facilities in Sao Paulo, where more beam time is available than would be possible in the US laboratories. The interactions produced by a group of leading nuclear physicists in the two countries should benefit the scientific community in both the U.S. and Brazil. Students and post doctoral researchers will also travel to Brazil as part of the research effort. ***