Study of the pi0 pi0 system in p p central collisions at 450-GeV/c - INSPIRE

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Study of the pi0 pi0 system in p p central collisions at 450-GeV/c

GAMS

Collaboration

•

D. Alde
(
- Los Alamos
)

Feb, 1997

11 pages

Published in:

Phys.Lett.B 397 (1997) 350-356

DOI:

10.1016/S0370-2693(97)00228-1

PDG:

{{\mathit f}_{{{0}}}{(980)}}

Report number:

KEK-PREPRINT-96-174

Experiments:

CERN-NA-012

View in:

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Abstract: (Elsevier)

The effective mass spectrum of π 0 pairs produced in pp central collisions ( pp → p f π 0 π 0 p s ) at 450 GeV/c, s = 29 GeV , below 1 GeV differs from that observed in peripheral charge exchange reactions. In particular, there is a large number of events between ππ-threshold and 1 GeV, that interfere with f 0 (980) destructively. The possible existence of a broad S-wave state is suggested.

13.60.LE
pp central collision
Double pomeron exchange
π 0 π 0 events below 1 GeV
π0π0 events below 1 GeV
p p: inelastic scattering
p p: exclusive reaction
pi0: pair production
mass spectrum: (2pi0)
scalar meson: search for

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