Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Các sóng dao động neutrino ngắn trong các máy dò scintillator lỏng siêu lớn
Tóm tắt
Các máy dò neutrino scintillator lỏng nhiều kiloton mạnh mẽ mới, bao gồm NOνA và có thể là LENA, sẽ đi vào hoạt động trong thập kỷ tới. Khi kết hợp với một nguồn neutrino suy giảm tại chỗ (DAR) có công suất vừa phải tại khoảng cách ngắn, các máy dò này có thể quyết định xác định các tín hiệu của dao động neutrino ở Δm2 cao. Dọc theo chiều dài lớn hơn 50 m của máy dò, sóng dao động đặc trưng sẽ hiện rõ, cung cấp xác minh mạnh mẽ hiện tượng dao động. LENA có thể đồng thời thực hiện các tìm kiếm sự xuất hiện của νμ → νe và sự biến mất của νe trong khi NOνA có thể bị giới hạn ở sự biến mất của νe. Đối với kênh xuất hiện, một máy dò giống như LENA có thể kiểm tra các vùng tín hiệu LSND và MiniBooNE tại >5 σ với thể tích fiducial 5 kt và nguồn neutrino 10 kW. Độ nhạy với sự biến mất của νe của LENA và NOνA bổ sung cho hiện tượng bất thường gần đây của lò phản ứng cho thấy sự biến mất có thể có của νe và sẽ bao phủ tín hiệu dao động khả thi này ở ~3 σ.
Từ khóa
#neutrino #dao động neutrino #máy dò scintillator lỏng #NOνA #LENA #nguồn neutrino #δm2Tài liệu tham khảo
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