4.8 Article

Search for New Dielectron Resonances and Randall-Sundrum Gravitons at the Collider Detector at Fermilab

Journal

PHYSICAL REVIEW LETTERS
Volume 107, Issue 5, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.051801

Keywords

-

Funding

  1. U.S. Department of Energy and National Science Foundation
  2. Italian Istituto Nazionale di Fisica Nucleare
  3. Ministry of Education, Culture, Sports, Science and Technology of Japan
  4. Natural Sciences and Engineering Research Council of Canada
  5. National Science Council of the Republic of China
  6. Swiss National Science Foundation
  7. A.P. Sloan Foundation
  8. Bundesministerium fur Bildung und Forschung, Germany
  9. Korean World Class University, National Research Foundation of Korea
  10. Science and Technology Facilities Council and the Royal Society, U.K.
  11. Institut National de Physique Nucleaire et Physique des Particules/CNRS
  12. Russian Foundation for Basic Research
  13. Ministerio de Ciencia e Innovacion, Spain
  14. Slovak RD Agency
  15. Academy of Finland
  16. Australian Research Council (ARC)
  17. STFC [ST/H001026/2, ST/H001026/1, PP/E003699/2, ST/H001069/1, ST/H001077/1, PP/E003699/1] Funding Source: UKRI
  18. Science and Technology Facilities Council [ST/H001026/2, ST/H001026/1, PP/E003699/1, ST/H001069/1, ST/H001077/1, PP/E003699/2, PP/E000444/1] Funding Source: researchfish
  19. Grants-in-Aid for Scientific Research [18071002] Funding Source: KAKEN
  20. ICREA Funding Source: Custom

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A search for new dielectron-mass resonances using data recorded by the CDF II detector and corresponding to an integrated luminosity of 5.7 fb(-1) is presented. No significant excess over the expected standard model prediction is observed. In this data set, an event with the highest dielectron mass ever observed (960 GeV/c(2)) was recorded. The results are interpreted in the Randall-Sundrum (RS) model. Combined with the 5: 4 fb(-1) diphoton analysis, the RS-graviton lower-mass limit for the coupling k/(M) over bar (P1) = 0.1 is 1058 GeV/c(2), making it the strongest limit to date.

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