5 research outputs found
A study of the pi^0pi^0 system produced in charge exchange and central collisions
A study of the system produced in charge exchange
collisions at 38 and 100 GeV/c and in central interactions at 450 GeV/c
has been carried out. The wave has rather a complicated structure in both
processes indicating the existence of several scalar resonances. The
and appear as dips at 1 and 1.5 GeV in the wave for charge
exchange reaction, and as shoulders at these masses in the wave for central
production. The production of the , and in
the reaction as a function of the
kinematical filter shows the behaviour differed from what has been observed for
the undisputed mesons. An extra state is seen in the
wave for charge exchange reaction as a dip at 2 GeV. Resonances with higher
spins, , and , have also been studied. All
the three mesons are produced in the reaction mainly
via an one-pion exchange for small , whereas a natural-parity exchange
domimates for large . The behaviour of the centrally produced
as a function of the is consistent with what has been observed for
other states.Comment: 6 pages, 6 figures, use file stwol.sty, presented at International
High-Energy Physics Euroconference in Quantum Chromodynamics, 2-8 July 1998,
Montpellier, France on behalf of the GAMS and WA102 Collaboration
Study of the ηη system in π-p interactions at 32 GeV/c with the GAMS-4π spectrometer
info:eu-repo/semantics/publishe
A study of the KKÏ€ channel produced centrally in pp interactions at 450 GeV/c
0info:eu-repo/semantics/publishe
A study of pseudoscalar states produced centrally in pp interactions at 450 GeV/c
0info:eu-repo/semantics/publishe
Observation of vertex factorisation breaking in central pp interactions
info:eu-repo/semantics/publishe