CAREER: Next Steps for Neutrino Oscillation Physics

这个职业建议是对主要研究者继续参与实验中微子物理的支持的请求，并描述了她在新的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几个实验得到完善，包括Super-K和K2 K。假设一个“标准的”三味图像成立，下一步将是通过确定θ 13的值，确定质量等级，并最终在轻子扇区中寻找CP破坏，来充分探索三味背景下的质量和混合。这些参数的知识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在μ子中微子束中出现电子中微子来寻找θ 13。因为θ 13，以及电子中微子出现的振幅，已知是很小的，这是一个具有挑战性的任务。J-PARCnu项目涉及一个新的高强度μ介子-中微子束，该束源自J-PARC设施，并被发送到一个翻新的Super-K远探测器，其对θ 13的灵敏度将比目前的极限高出约20倍。该计划的“第二阶段”旨在确定质量等级，并寻找轻子CP破坏。该计划描述了与中微子物理学有关的教育和推广活动。具体而言，它建议为高中教师开发和提供中微子物理讲习班模块。

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.