pp low energy parameters from annihilation cross section data
J. Carbonell, K. V. Protasov, A. Zenoni
Abstract
The recent experimental data obtained by the OBELIX group on total pp annihilation cross section are analysed; the low energy spin averaged parameters of the pp 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 asc = - 0.69 0.01 (stat) 0.03 (sys) fm, Im Asc = - 0.76 0.05 (stat) 0.04 (sys) fm3. The results are in very good agreement with existing atomic data.
Create a lesson
Related papers
Density-driven α-particle clustering in neutron-rich oxygen isotopes
M. Davies, E. Yüksel, J. -P. Ebran et al.
Multi-phonon wobbling excitations as a probe for dynamical quasiparticle alignment
R. Budaca, A. I. Budaca
Interacting Boson System at Finite Temperatures: The treatment of the lattice QCD results
D. Anchishkin, V. Gnatovskyy, D. Zhuravel et al.
Spurious center-of-mass mode as an S-matrix pole within the Jost-random-phase approximation
Kazuhito Mizuyama
Quantum computing for high energy nuclear physics
João Barata
Elliptic and triangular flow responses in O+O and Ne+Ne collisions from hydrodynamics and kinetic theory
Victor E. Ambrus, Giuliano Giacalone, Clemens Werthmann et al.