High mass exclusive diffractive dijet production in $\mathbf{p\bar{p}}$ collisions at $\mathbf{\sqrt{s}}$ = 1.96 TeV [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 794.8 Electronic games Computer games
• Thông tin xuất bản: Batavia, Ill. : Oak Ridge, Tenn. : Fermi National Accelerator Laboratory ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2010
• Mô tả vật lý: Size: 8 pages : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 268571
• Chủ đề: 1. 72 physics of elementary particles and fields; 2. Collisions; 3. Particle production; 4. Proton-antiproton interactions; 5. Tev range 01-10

Tóm tắt

We present evidence for diffractive exclusive dijet production with an invariant dijet mass greater than 100 GeV in data collected with the D0 experiment at the Fermilab Tevatron Collider. A discriminant based on calorimeter information is used to measure a significant number of events with little energy (typically less than 10 GeV) outside the dijet system, consistent with the diffractive exclusive dijet production topology. The probability for these events to be explained by other dijet production processes is 2 x 10{sup -5}, corresponding to a 4.1 standard deviation significance.