Photoproduction of the f2 (1270) Meson Using the CLAS Detector

(CLAS Collaboration)

Research output: Contribution to journalArticlepeer-review

Abstract

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 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 f2(1270) photoproduction are extracted with good precision due to low backgrounds and are compared to theoretical calculations.

Original languageEnglish (US)
Article number082002
JournalPhysical Review Letters
Volume126
Issue number8
DOIs
StatePublished - Feb 25 2021

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Photoproduction of the f2 (1270) Meson Using the CLAS Detector'. Together they form a unique fingerprint.

Cite this