Abstract
The exclusive reactionpp→ppπ+ π− has been studied using the SFM spectrometer at ISR energies of\(\sqrt s = 24\) and 63 GeV. The cross section in the double pomeron exchange region defined by |xp|>0.9, |yπ|<1 is 28±6, 23(+13, −6) and 29(+29, −10)μb, respectively. The ππ mass spectrum is dominated by an 1/mππ2 part, as expected for pomeron pomeron scattering. In addition, thef(1, 270) resonance is clearly distinguished. There are no further resonance signals, which could be assigned to glueball candidates expected in the 1,000 MeV region. Compared to photon photon scattering, the ratio of continuum tof-resonance production cross sections is significantly larger in pomeron pomeron scattering.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
