4.7 Article

On the narrow dip structure at 1.9 GeV/c2 in diffractive photoproduction

Journal

PHYSICS LETTERS B
Volume 578, Issue 3-4, Pages 290-296

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2003.10.071

Keywords

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Funding

  1. Direct For Biological Sciences
  2. Division Of Integrative Organismal Systems [0830225] Funding Source: National Science Foundation
  3. Direct For Computer & Info Scie & Enginr
  4. Division of Computing and Communication Foundations [0915403] Funding Source: National Science Foundation
  5. Direct For Mathematical & Physical Scien [1041943] Funding Source: National Science Foundation
  6. Division Of Chemistry [1041943] Funding Source: National Science Foundation
  7. Division Of Materials Research
  8. Direct For Mathematical & Physical Scien [0804506] Funding Source: National Science Foundation
  9. Office of Polar Programs (OPP)
  10. Directorate For Geosciences [1023667] Funding Source: National Science Foundation
  11. Grants-in-Aid for Scientific Research [12F02510] Funding Source: KAKEN

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The narrow dip observed at 1.9 GeV/c(2) by the Fermilab experiment E687 in diffractive photoproduction of 37pi(+)3pi(-) is examined. The E687 data are refitted, a mechanism is proposed to explain why this resonance appears as a dip, and possible interpretations are discussed. (C) 2003 Elsevier B.V. All rights reserved.

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