Central exclusive π{sup +}π{sup −} production in pp{sup ¯} collisions at √(s)=0.9 and 1.96 TeV at CDF
- Forschungszentrum Jülich, 52425 Jülich (Germany)
Exclusive π{sup +}π{sup −} production in proton-antiproton collisions at √(s)=0.9 and 1.96 TeV in the Collider Detector at Fermilab has been measured. Events with exactly two particles with opposite charge, in |η(π)| < 1.3, with no other particles detected in |η(π)| < 5.9, were selected. We require the central π{sup +}π{sup −} state to have rapidity |y(ππ)| < 1. The data are expected to be dominated by double pomeron exchange. Therefore, the quantum numbers of the central state are constrained. The data show resonance structures attributed to the f{sub 0} and f{sub 2} mesons. The results are valuable for light hadron spectroscopy, and for understanding the nature of the pomeron in a region between non-perturbative and perturbative QCD.
- OSTI ID:
- 22391354
- Journal Information:
- AIP Conference Proceedings, Vol. 1654, Issue 1; Conference: DIFFRACTION 2014: International Workshop on Diffraction in High-Energy Physics, Primosten (Croatia), 10-16 Sep 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Central exclusive $\pi^{+}\pi^{-}$ production in $p \bar{p}$ collisions at $\mathbf{\sqrt{s}}$~=~0.9 and 1.96 TeV at CDF
Measurement of Central Exclusive $\pi^+ \pi^-$ Production in $p-\bar{p}$ Collisions at $\sqrt{s} = 0.9$ and 1.96 TeV at CDF
Related Subjects
BARYON SPECTROSCOPY
F0-980 MESONS
F2-1270 MESONS
FERMILAB COLLIDER DETECTOR
MESON SPECTROSCOPY
MULTIPARTICLE SPECTROMETERS
MULTIPLE PRODUCTION
PARTICLE IDENTIFICATION
PARTICLE RAPIDITY
PIONS MINUS
PIONS PLUS
PROTON-ANTIPROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUANTUM NUMBERS
TEV RANGE