A study of the $\eta\eta'$ and $\eta'\eta'$ channels produced in central pp interactions at 450 GeV/c

Using the large sample of π 0 decays to two photons produced during the η runs, the systematic effects in the calorimeter measurement can be estimated. From the known target

L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des

A full three-body calcula- tion based on the hyperspherical harmonics method ac- counting for all pair-wise final state interactions corrobo- rates the above estimate showing that

Events belonging to reaction (1) have been selected using a kinematical fit (7C fit, four-momentum conservation being used and the masses of three π 0 s being fixed).. A kinematical

In all these reactions evidence for the f 0 (1500) has emerged. It represents more than a factor of 6 increase in statistics over the only other data on the centrally produced ηη

Coherence between different J P states and between different isobar amplitudes of a given J P have been neglected in the fit. Different combinations of waves and isobars have been

Though Charles Dickens made a point of writing and speaking French when in France and occasionally in his letters, he never got immersed in French culture as much as

In this modeling study, we show how the knowl- edge of water-soluble organic compounds (WSOC) and the associated physical and chemical properties (e.g. solubility, surface