Phys. Rev. D
59,
012001
(1998)
[12 pages]
Properties of the a0(980) meson
S. Teige et al.
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S. Teige, B. B. Brabson, R. R. Crittenden, A. R. Dzierba, J. Gunter, R. Lindenbusch, D. R. Rust, E. Scott,, P. T. Smith, and T. Sulanke
Department of Physics, Indiana University, Bloomington, Indiana 47405
S. U. Chung, R. W. Hackenburg, C. Olchanski, C. Strassburger, D. P. Weygand*, and H. J. Willutzki
Department of Physics, Brookhaven National Laboratory, Upton, New York 11973
Z. Bar-Yam, J. P. Cummings†, J. P. Dowd, P. M. Eugenio, M. Hayek‡, W. Kern, E. King, and N. Shenhav‡
Department of Physics, University of Massachusetts Dartmouth, North Dartmouth, Massachusettes 02747
V. A. Bodyagin, A. I. Demianov, O. L. Kodolova, V. L. Korotkikh, M. A. Kostin, A. I. Ostrovidov, L. I. Sarycheva, N. B. Sinev, I. N. Vardanyan, and A. A. Yershov
Institute for Nuclear Physics, Moscow State University, Moscow, Russian Federation
D. S. Brown, T. K. Pedlar, K. K. Seth, J. Wise, and D. Zhao
Department of Physics, Northwestern University, Evanston, Illinois 60208
T. Adams§, J. M. Bishop, N. M. Cason, E. I. Ivanov, J. M. LoSecco, J. J. Manak*, A. H. Sanjari, W. D. Shephard, D. L. Stienike, S. A. Taegar**, and D. R. Thompson
Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556
S. P. Denisov, V. Dorofeev, I. Kachaev, V. V. Lipaev, A. V. Popov, and D. I. Ryabchikov
Institute for High Energy Physics, Protovino, Russian Federation
G. S. Adams, J. Kuhn, J. Napolitano, M. Nozar, J. A. Smith, D. B. White, and M. Witkowski
Department of Physics, Rensselaer Polytechnic Institute, Troy, New York 12180
Received 22 September 1997; published 13 November 1998
Events of the type π-p⃗nηπ+π- and π-p⃗nηπ0 at 18GeV/c are analyzed. The mass and width of the neutral and charged a0(980) were determined. The neutral a0 is found to have a mass of (0.991±0.0025)GeV/c2 and a width of (0.069±0.011)GeV/c2. A partial wave analysis technique yields (0.9983±0.0040) and (0.072±0.010)GeV/c2 for the mass and width of the charged a0.
© 1998 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.59.012001
DOI:
10.1103/PhysRevD.59.012001
*Now at Thomas Jefferson National Accelerator Facility, Newport News, VA 23606. †Now at Department of Physics, Rensselaer Polytechnic Institute, Troy, NY 12180. ‡Now at Rafael, Haifa, Israel. §Now at Department of Physics, Kansas State University, Manhattan, KS 66506. **Now at Department of Physics, University of Arizona, Tucson, AZ 85721.
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