p low energy parameters from annihilation cross section data

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p̄p low energy parameters from annihilation cross section data

Abstract. The recent experimental data obtained by the OBELIX group on total p̄p annihilation cross section are analysed; the low energy spin averaged parameters of the p̄p scattering amplitude (the imaginary parts of the S-wave scattering length and P-wave scattering volume) are extracted from the data. Their values are found to be equal to Imasc = −0.69±0.01(stat)±0.03(sys) fm, ImAsc = −0.76±0....

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ژورنال

عنوان ژورنال: Physics Letters B

سال: 1997

ISSN: 0370-2693

DOI: 10.1016/s0370-2693(97)00190-1