This title appears in the Scientific Report :
2021
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.126.082002 in citations.
Please use the identifier: http://hdl.handle.net/2128/27767 in citations.
Photoproduction of the f 2 ( 1270 ) Meson Using the CLAS Detector
Photoproduction of the f 2 ( 1270 ) Meson Using the CLAS Detector
The quark structure of the f2(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq¯) resonance with quantum numbers JPC=2++. Recently, it was proposed that the f2(1270) is a molecular state made from the attractive interaction of two ρ-mesons. Such a state would be expected...
Saved in:
Please use the identifier: http://hdl.handle.net/2128/27767 in citations.
The quark structure of the f2(1270) meson has, for many years, been assumed to be a pure quark-antiquark (qq¯) resonance with quantum numbers JPC=2++. Recently, it was proposed that the f2(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→π0π0p, using the CLAS detector at Jefferson Lab for incident beam energies between 3.6-5.4~GeV. Differential cross sections, dσ/dt, for f2(1270) photoproduction are extracted with good precision, due to low backgrounds, and are compared with theoretical calculations. |