Year: 2001
Type: article
Abstract: The reaction $\ensuremath{\gamma}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}n$ has been measured at MAMI for photon energies up to 820 MeV. Invariant mass spectra of the particles in the final state $({\ensuremath{\pi}}^{+}n)$, $({\ensuremath{\pi}}^{0}n)$, $({\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0})$ have been determined for several bins of incident photon energy. Differences in ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}$ and simultaneously measured ${\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ invariant mass distributions are assigned to a $\ensuremath{\rho}$ branch of the ${D}_{13}(1520)$ nucleon resonance.
Source: Physical Review Letters
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Award: G8023922465
OpenAlex ID: W1643178243