No Access Published Online: 09 May 2001
AIP Conference Proceedings 564, 217 (2001);
more...View Affiliations
  • 1Institute for Medium Energy Physics, Austrian Academy of Sciences, Boltzmanngasse 3, A-1090 Vienna, Austria
  • 2Univ. of Victoria, Department of Physics and Astronomy, P.O. Box 3055 Victoria, BC V8W 3P6, Canada
  • 3INFN—Laboratori Nazionali di Frascati, C.P. 13, Via E. Fermi 40, I-00044 Frascati, Italy
  • 4Univ. degli Studi di Trieste, Dip. di Fisica and INFN Sezione di Trieste, Via A. Valerio 2, I-34127, Trieste, Italy
  • 5Tokyo Institute of Technology, 2-12-1 Ookayama Meguro, Tokyo 152, Japan
  • 6Univ. of Tokyo, Department of Physics, 7-3-1 Hongo, Bunkyo, Tokyo 113, Japan
  • 7Inst. of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-01, Japan
  • 8KEK, High Energy Accelerator Research Organization, Tanashi Campus 3-2-1 Midori, Tanashi, Tokyo 188, Japan
  • 9Inst. of Physics and Nuclear Engineering “Horia Hulubei,” Department of High Energy Physics, P.O. Box MG-6 R-76900 Magurele, Bucharest, Romania
  • 10Univ. de Fribourg, Inst. de Physique, Bd. de Perolles, CH-1700 Fribourg, Switzerland
  • 11Univ. de Neuchâtel, Inst. de Physique, 1 rue A.-L. Breguet, CH-2000 Neuchâtel, Switzerland
  • 12W. K. Kellogg Radiation Laboratory, California Institute of Technology, Pasadena, California 91125
  • 13Department of Physics and Astrophysics, California State University, Northridge, California 91330
View Contributors
  • M. Augsburger
  • G. Beer
  • S. Bianco
  • A. M. Bragadireanu
  • M. Bregant
  • W. H. Breunlich
  • M. Cargnelli
  • D. Chatellard
  • C. Curceanu (Petrascu)
  • J.-P. Egger
  • F. L. Fabbri
  • B. Gartner
  • C. Guaraldo
  • R. S. Hayano
  • M. Iliescu
  • T. Ishiwatari
  • T. M. Ito
  • M. Iwasaki
  • R. King
  • P. Knowles
  • T. Koike
  • B. Lauss
  • V. Lucherini
  • J. Marton
  • E. Milotti
  • F. Mulhauser
  • S. N. Nakamura
  • T. Ponta
  • A. C. Sanderson
  • L. A. Schaller
  • L. Schellenberg
  • H. Schneuwly
  • R. Seki
  • D. Tomono
  • T. Yoneyama
  • E. Zavattini
  • J. Zmeskal
DEAR is one of the first experiments at the new DAΦNE φ-factory at the Laboratori Nazionali di Frascati dell'INFN. The objective of the DEAR experiment is to perform a precision measurement of the strong interaction shifts and widths of the K-series lines in kaonic hydrogen and the first observation of the same quantities in kaonic deuterium. The aim is to obtain a precise determination of the isospin-dependent kaon-nucleon scattering lengths which will represent a breakthrough in K̄N low-energy phenomenology and will allow us to determine the kaon-nucleon sigma terms. The sigma terms give a direct measurement of chiral symmetry breaking and are connected to the strangeness content of the proton. First results on background measurements with the DEAR NTP setup installed on DAΦNE are reported.
  1. © 2001 American Institute of Physics.