Study of the gamma p --> pi0 pi0 p reaction with the Crystal Ball/TAPS at the Mainz

Abstract

The gamma p --> pi0 pi0 p reaction has been measured from threshold to 1.4 GeV using the Crystal Ball and TAPS photon spectrometers together with the photon tagging facility at the Mainz Microtron. The experimental results include total and differential cross sections as well as specific angular distributions, which were used to extract partial-wave amplitudes. In particular, the energy region below the D13(1520) resonance was studied.

12 pages, 13 figures, corrected version, published in PRC

References in corpus (6)

• Upgrade of the Glasgow photon tagging spectrometer for Mainz MAMI-C
• Study of the gp-->etap reaction with the Crystal Ball detector at the Mainz Microtron(MAMI-C)
• New results on the Roper resonance and the P_{11} partial wave
• Beam-Helicity Asymmetries in Double Pion Photoproduction off the Proton
• Radiative pi0 photoproduction on protons in the Delta+(1232) region
• Analysis of angular distributions in gamma N \to pi0 eta N

Cited by in corpus (12)

• Light Baryon Spectroscopy
• Photoproduction of pi0pi0 and pi0pi+-pairs off the proton from threshold to the second resonance region
• A new measurement of the rare decay eta -> pi^0 gamma gamma with the Crystal Ball/TAPS detectors at the Mainz Microtron
• Measurement of the beam-helicity asymmetry $I^{\odot }$ in the photoproduction of ${\pi }^0{\pi }^{\pm }$-pairs off protons and off neutrons
• Photoproduction ofeta-pi pairs off nucleons and deuterons
• Coherent pi0-pi0 photoproduction on lightest nuclei
• Evidence of a dibaryon spectrum in coherent ${\pi }^0{\pi }^{0}d$ photoproduction at forward deuteron angles
• Observation of a structure in the M${}_{p\eta }$ invariant mass distribution near 1700 MeV/$c^2$ in the $\gamma \mathbf{p}\to \mathbf{p}{\pi }^0\eta$ reaction
• Minimal complete sets for two pseudoscalar meson photoproduction
• Helicity-dependent cross sections for the photoproduction of ${\pi }^0$ pairs from nucleons
• Nucleon resonances with spin $\frac{3}{2}$ and isospin $\frac{1}{2}$
• Complete experiment problem for photoproduction of two pseudoscalar mesons on a nucleon in a truncated partial-wave analysis