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Các tìm kiếm SUSY và vật chất tối WIMP tại LHC đối mặt với cảnh quan lý thuyết dây
Tóm tắt
Cảnh quan các nghiệm chân không của lý thuyết dây cung cấp cho các nhà vật lý một số hiểu biết về độ lớn của hằng số vũ trụ. Lý do tương tự có thể được áp dụng cho độ lớn của các hạng mục bẻ cong SUSY mềm trong các mô hình siêu đối xứng của vật lý hạt: có vẻ như có một sự thu hút thống kê về các hạng mục mềm lớn, điều này bị kiềm chế bởi yêu cầu nhân loại rằng quy mô yếu không nằm quá xa khoảng ∼ 100 GeV. Đối với một thu hút thống kê nhẹ của m_soft với n = 1 (như mong đợi từ việc bẻ cong SUSY do một hạng mục F duy nhất) thì khối lượng Higgs nhẹ được ưa chuộng ở khoảng ∼ 125 GeV, trong khi các hạt siêu đối xứng (sparticles) đều bị kéo xa khỏi các giới hạn của LHC. Chúng tôi đối mặt với một loạt các giới hạn tìm kiếm vật chất tối WIMP và LHC với những kỳ vọng thống kê từ một ô màu mỡ trong cảnh quan lý thuyết dây. Kết quả cuối cùng là các thiết bị phát hiện vật chất tối WIMP và LHC nhìn thấy chính xác những gì dự kiến từ cảnh quan: một boson Higgs giống như Mô hình Chuẩn với khối lượng 125 GeV, nhưng cho đến nay không có dấu hiệu của các hạt siêu đối xứng hoặc vật chất tối WIMP. SUSY từ cảnh quan n = 1 rất có thể sẽ xuất hiện tại LHC trong kênh đối xứng hai leptonic với dấu hiệu tương phản chữ ký yếu cộng với jet cộng với MET. Các thiết bị phát hiện vật chất tối WIMP bằng chất lỏng quý hiếm multi-ton nên có khả năng khám phá hoàn toàn không gian tham số của cảnh quan n = 1.
Từ khóa
#Vật lý hạt #lý thuyết dây #vật chất tối #SUSY #LHCTài liệu tham khảo
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