Measurement of the \overrightarrown p→ dπ⁰π⁰ reaction with polarized beam in the region of the d*(2380) resonance

2016/01/20 by P. Adlarson, W. Augustyniak, W. Bardan +98 · 22 citations
Physics and Astronomy · #Beam (structure) #Beam energy #Detector #Deuterium #Fusion #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #Quantum chaos and dynamical systems #Resonance (particle physics) #Scattering #nucl-ex

paper · pdf · doi:10.1140/epja/i2016-16147-5

published in The European Physical Journal A 52(5) (Springer Science+Business Media)

arxiv created 2016/01/20 · openalex publication_date 2016/05/01 · arxiv updated 2016/06/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report on a high-statistics measurement of the most basic double-pionic fusion reaction \overrightarrown p→ dπ⁰π⁰ over the energy region of the d *(2380) resonance by use of a polarized deuteron beam and observing the double fusion reaction in the quasifree scattering mode. The measurements were performed with the WASA detector setup at COSY. The data reveal substantial analyzing powers and confirm conclusions about the d* resonance obtained from unpolarized measurements. We also confirm the previous unpolarized data obtained under complementary kinematic conditions.

Citations

• Evidence for a New Resonance from Polarized Neutron-Proton Scattering
• Meson production in nucleon?nucleon collisions close to the threshold
• Two-pion production in proton-proton collisions with a polarized beam
• Measurement of thepn→ppπ0π−reaction in search for the recently observed resonance structure indπ0π0anddπ+π−systems