期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.081802
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资金
- U.S. Department of Energy
- National Science Foundation
- Italian Istituto Nazionale di Fisica Nucleare
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Natural Sciences and Engineering Research Council of Canada
- National Science Council of the Republic of China
- Swiss National Science Foundation
- A. P. Sloan Foundation
- Bundesministerium fur Bildung und Forschung, Germany
- National Research Foundation of Korea
- Science and Technology Facilities Council
- Royal Society, UK
- Institut National de Physique Nucleaire et Physique des Particules/CNRS
- Russian Foundation for Basic Research
- Ministerio de Ciencia e Innovacion
- Programa Consolider-Ingenio, Spain
- Slovak R and D Agency
- Academy of Finland
- Science and Technology Facilities Council [ST/H001026/1, ST/H001026/2, ST/G006717/1, PP/E000444/1, ST/H001077/1] Funding Source: researchfish
- STFC [ST/G006717/1, ST/H001069/1, ST/H001077/1, ST/H001026/2, ST/H001026/1] Funding Source: UKRI
We report on a search for direct scalar bottom quark (sbottom) pair production in p (p) over bar collisions at root s = 1.96 TeV, in events with large missing transverse energy and two jets of hadrons in the final state, where at least one of the jets is required to be identified as originating from a b quark. The study uses a collider detector at Fermilab Run II data sample corresponding to 2.65 fb(-1) of integrated luminosity. The data are in agreement with the standard model. In an R-parity conserving minimal supersymmetric scenario, and assuming that the sbottom decays exclusively into a bottom quark and a neutralino, 95% confidence-level upper limits on the sbottom pair production cross section of 0.1 pb are obtained. For neutralino masses below 70 GeV/c(2), sbottom masses up to 230 GeV/c(2) are excluded at 95% confidence level.
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