Research in Particle Theory

粒子论研究

基本信息

批准号：
0139967
负责人：
Pran Nath
金额：
$ 12万
依托单位：
Northeastern University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2002
资助国家：
美国
起止时间：
2002-10-01 至 2005-09-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0139967&HistoricalAwards=false
关键词：
Research Particle Theory

项目摘要

Investigations in theoretical high energy physics in areas of supersymmetry phenomenology, CP violation, dark matter and extra dimensions and their applications to model building will be carried out. The implications of the data from the Brookhaven g-2 experiment and of RUNII of the Tevatron for supersymmetry and surperstring theory will be explored. Correlated studies of nonuniversalities, flavor andCP violation in grand unified and string models will be carried out with the goal of achieving correlated predictions for the electric dipole moments of leptons and of flavor violating processes. This investigation is of importance in view of the proposed experiments for the sensitive search of the muon electric dipole moment and of the process mu-e+gamma.Studies of the amount of supersymmetric dark matter in the coannihilation region including effects of nonuniversalities will be carried out. Further, studies of dark matter under the influence of CP violationwill also be carrried out in the coannihilation region. Additional research will include investigations of new grand unified models which can remove the current constraint on such models brought about by the recent SuperKamiokande limit on the p-nubar+K mode. Such models include grand unified models with large representations and models in extra dimensions. Specifically the possible deduction of supergravity GUTswith a cascade from higher dimensional supergravity theories to lower dimensional ones along with supersymmetry breaking related to extra dimensions will be investigated.

将开展超对称现象学、CP破坏、暗物质和额外维度等领域的理论高能物理研究及其在模型构建中的应用。将探讨 Brookhaven g-2 实验和 Tevatron RUNII 数据对超对称性和超弦理论的影响。将开展大统一模型和弦模型中的非普适性、风味和CP破坏的相关研究，目标是实现轻子电偶极矩和风味破坏过程的相关预测。鉴于所提出的对 μ 子电偶极矩和 mu-e+gamma 过程进行灵敏搜索的实验，这项研究具有重要意义。将进行共湮没区超对称暗物质数量的研究，包括非普遍性的影响出去。此外，CP破坏影响下的暗物质研究也将在共湮没区进行。其他研究将包括对新的大统一模型的研究，该模型可以消除最近 SuperKamiokande 对 p-nubar+K 模式的限制所带来的当前对此类模型的限制。此类模型包括具有大表示的大统一模型和额外维度的模型。具体来说，将研究超引力 GUT 的可能推论，其中包括从高维超引力理论到低维超引力理论的级联以及与额外维度相关的超对称破缺。