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Photoproduction of the f_{2}(1270) Meson Using the CLAS Detector.
- Source :
-
Physical review letters [Phys Rev Lett] 2021 Feb 26; Vol. 126 (8), pp. 082002. - Publication Year :
- 2021
-
Abstract
- The quark structure of the f_{2}(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq[over ¯]) resonance with quantum numbers J^{PC}=2^{++}. Recently, it was proposed that the f_{2}(1270) is a molecular state made from the attractive interaction of two ρ mesons. Such a state would be expected to decay strongly to final states with charged pions due to the dominant decay ρ→π^{+}π^{-}, whereas decay to two neutral pions would likely be suppressed. Here, we measure for the first time the reaction γp→π^{0}π^{0}p, using the CEBAF Large Acceptance Spectrometer detector at Jefferson Lab for incident beam energies between 3.6 and 5.4 GeV. Differential cross sections, dσ/dt, for f_{2}(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 126
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 33709753
- Full Text :
- https://doi.org/10.1103/PhysRevLett.126.082002