CAREER: Next Steps for Neutrino Oscillation Physics

这份职业计划书是对首席研究员继续参与实验中微子物理的请求，并描述了她在新J-PARCnu项目的中间探测器中发挥作用的计划。在接下来的几年里，我们对双味振荡参数空间的认识将通过包括Super-K和K2K在内的几个实验得到完善。假设一个“标准的”三味图成立，下一步将是通过确定theta13的值，确定质量层次，并最终在轻子扇区寻找CP违反，来充分探索三味背景下的质量和混合。了解这些参数对于充分理解宇宙的物质-反物质不对称性至关重要。下一个有希望的步骤是通过介子-中微子束中的电子-中微子现象来寻找theta13。因为已知theta13很小，因此电子-中微子的振幅很小，这是一项具有挑战性的任务。J-PARCnu项目，包括一个新的高强度介子-中微子束，从J-PARC设施发出，并发送到一个翻新的Super-K远探测器，将对ta13的灵敏度提高到目前极限的20倍左右。该项目的“第二阶段”旨在确定质量层次，并寻找轻子CP违逆。该提案描述了与中微子物理相关的教育和推广活动。具体来说，它建议开发并提供一个中微子物理研讨会模块，供高中教师使用。

This CAREER proposal is a request for support for the Principal Investigator's continuing involvement in experimental neutrino physics and describes her plan to play a role in the intermediate detector of the new J-PARCnu project. Over the next several years, our knowledge of two-flavor oscillation parameter space will be refined by several experiments, including Super-K and K2K. Assuming that a "standard" 3-flavor picture holds, the next steps will be to fully explore the masses and mixings in a 3-flavor context by determining the value of theta13, determining the mass hierarchy, and, ultimately, searching for CP violation in the lepton sector. Knowledge of these parameters is essential for a full understanding of the matter-antimatter asymmetry of the universe. The next promising step is to search for theta13 via an electron-neutrino appearance in a muon-neutrino beam. Because theta13, and hence the amplitude for electron-neutrino appearance, is known to be small, this is a challenging task. The J-PARCnu project, which involves a new high-intensity muon-neutrino beam originating at the J-PARC facility and sent to a refurbished Super-K far detector, will have a sensitivity to theta13 approximately 20 times better than current limits. "Phase II" of this program aims to determine the mass hierarchy, and search for leptonic CP violation.The proposal describes education and outreach activities related to neutrino physics. Specifically, it proposes to develop and make available a neutrino physics workshop module for high school teachers.