Abstract
Data are presented on Pomeron-Pomeron interactions which produce a centralπ + π − system in proton-proton collisions at\(\sqrt s = 62 GeV\) at the CERN Intersecting Storage Rings. This process may favor the production of gluonic bound states. A partial-wave analysis of theπ + π − system shows evidence for the production of the statesf 0(975),f 0(1400), andf 2(1270). The fitted mass for thef 2(1270) is about 50 MeV below the world average. In addition, the production mechanism for thef 2(1270) is uniquely different from that for the other final states in that there is a correlation between the outgoing protons. this is consistent with a picture of two-gluon exchange with thef 2(1270) produced by gluon fusion, and could indicate that thef 2(1270) has a glueball component.
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Breakstone, A., Campanini, R., Crawley, H.B. et al. The reaction Pomeron-Pomeron →π + π − and an unusual production mechanism for thef 2 (1270). Z. Phys. C - Particles and Fields 48, 569–575 (1990). https://doi.org/10.1007/BF01614690
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DOI: https://doi.org/10.1007/BF01614690