Antiproton-proton low energy parameters from annihilation cross section data - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physics Letters B Year : 1997

Antiproton-proton low energy parameters from annihilation cross section data

Abstract

The recent experimental data obtained by the OBELIX group on total $\bar{p}p$ annihilation cross section are analysed; the low energy spin averaged parameters of the $\bar{p}p$ 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 $Im a_{sc} = - 0.69 \pm 0.01 (stat) results are in very good agreement with existing atomic data.

Dates and versions

in2p3-00005085 , version 1 (23-02-1999)

Identifiers

Cite

J. Carbonell, K.V. Protasov, A. Zenoni. Antiproton-proton low energy parameters from annihilation cross section data. Physics Letters B, 1997, 397, pp.345-349. ⟨10.1016/S0370-2693(97)00190-1⟩. ⟨in2p3-00005085⟩
11 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More