Pion induced reaction with carbon and polyethylene targets obtained by HADES-GSI in 2014

Pablo Rodríguez-Ramos
2016 Journal of Physics, Conference Series  
In the summer of 2014, HADES was conducting measurements with secondary pion-beam using different targets. The program was devoted to measure dilepton radiation from baryonic resonances. In particular we investigated a sub-threshold coupling of ρ to baryonic resonances in the second resonance region (N(1520), N(1535)). Most of the beam time was dedicated to measurement of e + e − production from Polyethylene target at pion beam momentum of 0.69 GeV/c. In addition we run part of the time with
more » ... e carbon target. This allow us to study exclusive π − + p → ne − e + channel. The normalization of spectra has been done using elastic scattering of pion on proton and carbon. The simulations of dilepton yields for π 0 , ∆ and N(1520) Dalitz decay using PLUTO was carried out.
doi:10.1088/1742-6596/742/1/012029 fatcat:elpegqbx4nfzdjc3wsidkgbm7i