Study of K K ¯ resonances in p ¯ p → K + K</…
2006; Elsevier BV; Volume: 639; Issue: 3-4 Linguagem: Inglês
10.1016/j.physletb.2006.06.010
ISSN1873-2445
AutoresC. Amsler, C.A. Baker, B. M. Barnett, C.J. Batty, M. Benayoun, P. Blüm, K. Braune, D.V. Bugg, V. Credé, K. M. Crowe, M. Doser, W. Dünnweber, D. Engelhardt, M.A. Faessler, R.P. Haddock, F. H. Heinsius, N. P. Hessey, P. Hidas, D. Jamnik, H. Kalinowsky, P. Kammel, J. Kisiel, E. Klempt, H. Koch, O. Kortner, M. Kunze, U. Kurilla, R. Landua, H. Matthäy, C. A. Meyer, F. Meyer-Wildhagen, R. Ouared, Κ. Peters, B. Pick, M. Ratajczak, C. Regenfus, W. Roethel, K. K. Seth, U. Strohbusch, M. Suffert, U. Thoma, I. Uman, S. Wallis-Plachner, D. Walther, U. Wiedner, B. S. Zou, Č. Zupančič,
Tópico(s)High-Energy Particle Collisions Research
ResumoProminent KK¯ resonances observed in the in-flight annihilation of p¯p into K+K−π0 include f2(1270), f0(1500), f2′(1525), ϕ(1680)/ρ(1700) and a state at 1750 MeV/c2 consistent with f0(1710). The reaction cross sections σ(p¯p→X(K+K−)π0) are obtained by means of a partial wave analysis. When these are combined with known KK¯ partial widths, the resulting production rates of presumably non-nn¯ states, X=f0(1710) and f2′(1525), are found to be suppressed by an order of magnitude compared to f0(1500) and f2(1270), respectively.
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