{ital f}{sub 0}(1370) and {ital f}{sub 0}(1520) resonances found in {bar {ital N}}{ital N} annihilation at rest
- Laboratory of Theoretical Physics, S.L. Sobolev Institute for Mathematics, 630090, Novosibirsk 90 (Russia)
It is shown that (i) to describe the (4{pi}){sup 0} mass spectra in {bar {ital N}}{ital N}{r_arrow}(4{pi}){sup 0}{pi} at rest by an {ital f}{sub 0} resonance with an energy-dependent total width, the mass of the resonance cannot equal 1370 MeV but has to lie above 1500 MeV, (ii) the shape of these mass spectra is only weakly sensitive to the value of the {ital f}{sub 0} resonance mass if this is high, and (iii) they also readily tolerate a nonresonant interpretation. A possible relation between a heavy {ital f}{sub 0} resonance dominating the 4{pi} channel and the {ital f}{sub 0}(1520) state observed in the reactions {bar {ital N}}{ital N}{r_arrow}3{pi} and {bar {ital N}}{ital N}{r_arrow}2{eta}{pi} is pointed out. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 279825
- Journal Information:
- Physical Review, D, Vol. 53, Issue 7; Other Information: PBD: Apr 1996
- Country of Publication:
- United States
- Language:
- English
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