CAREER: Search for Extra Dimensions in Space

职业：寻找太空中的额外维度

• 批准号: 0239367
• 负责人: Greg Landsberg
• 金额: --
• 依托单位: Brown University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-01 至 2009-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0239367&HistoricalAwards=false
• 关键词: CAREER; Search; Extra; Dimensions; Space

This CAREER proposal requests support for an extensive experimental program of searches for extra dimensions (EDs) in space in the Run 2 data to be collected by the D0 experiment at the Fermi National Accelerator Laboratory Tevatron over the next five years. Most of the proposed searches will be carried out for the first time. This program is based on those channels expected to be most sensitive to various EDs models as well as to other new physics. For some of these channels, a specialized multi-level triggering is required; therefore the design and optimization of the trigger is among the proposed activities. In the channels already studied experimentally, the expected sensitivity is 2-3 times higher than the current best limits for any number of EDs, n 2, and is comparable to the reach of tabletop gravity experiments for n = 2. This would give D0 an excellent opportunity to either find a signal from EDs or to restrict significantly the allowed parameter space of the various models. While the D0 involvement is the major current activity of the Brown University High Energy Physics (HEP) group, joining one of the Large Hadron Collider (LHC) experiments at CERN, Geneva is a natural next step. Recently, S. Dimopoulos and the PI (and separately S. Giddings and S. Thomas) have proposed a novel signature for large EDs: a possibility of copious black hole production at the LHC and beyond. As a part of the proposed activities, the PI plans to work closely with the ATLAS and CMS collaborations in simulating and studying the phenomenology of black hole production at the LHC. It is also proposed to continue phenomenological research on black hole production at future colliders.This proposal includes a number of synergistic activities, such as the continuous involvement of undergraduate and graduate students in research at the cutting edge of modern particle physics. In particular, it is proposed to expand the newly established ties with the Vietnamese HEP groups via attracting more students from Vietnam to work in the D0 Collaboration by continuing their education in the graduate schools of the US universities involved in D0. Other proposed outreach activities include a number of public lectures and articles in popular science journals on the exciting subject of EDs in space and black holes in the lab.

这个CAREER提案要求支持一个广泛的实验计划，在费米国家加速器实验室Tevatron的D 0实验在未来五年内收集的Run 2数据中搜索空间中的额外维度（ED）。大多数拟议的搜索将首次进行。该程序基于对各种ED模型以及其他新物理最敏感的通道。对于其中一些渠道，需要专门的多级触发机制;因此，触发机制的设计和优化是拟议的活动之一。在通道已经实验研究，预期的灵敏度是2-3倍高于目前的最佳限制的任何数量的ED，n 2，并相当于达到桌面重力实验n = 2。这将为D 0提供一个极好的机会，可以从ED中找到信号，也可以显著限制各种模型的允许参数空间。虽然D 0参与是布朗大学高能物理（HEP）小组目前的主要活动，但加入日内瓦欧洲核子研究中心的大型强子对撞机（LHC）实验之一是自然的下一步。最近，S. Dimopoulos和PI（以及单独的S。Giddings和S.托马斯）提出了大型ED的一个新颖特征：大型强子对撞机及更远的地方产生大量黑洞的可能性。作为拟议活动的一部分，PI计划与ATLAS和CMS密切合作，模拟和研究LHC黑洞产生的现象学。还提议继续在未来的对撞机上对黑洞的产生进行现象学研究，这项提议包括一些协同活动，例如继续让本科生和研究生参与现代粒子物理学前沿的研究。特别是，建议通过吸引更多的越南学生在参与D 0的美国大学的研究生院继续接受教育，来扩大与越南HEP团体新建立的联系。其他拟议的外联活动包括一些公开讲座和在科普期刊上发表关于太空中的ED和实验室中的黑洞这一令人兴奋的主题的文章。