Measurement of $\ddot{I}{ƒ}_{\mathrm{ABS}}$ and $\ddot{I}{ƒ}_{\mathrm{CX}}$ of $\ddot{I}{€}^{+}$ on carbon by DUET

Abstract

The DUET Collaboration reports on the measurements of the absorption ($\ddot{I}{ƒ}_{\mathrm{ABS}}$) and charge exchange ($\ddot{I}{ƒ}_{\mathrm{CX}}$) cross sections of positively charged pions on carbon nuclei for the momentum range 201.6 MeV$/c$ to 295.1 MeV$/c$. The uncertainties on the absorption and charge exchange cross sections are $\sim$9.5\% and $\sim$18\%, respectively. The results are in good agreement with previous experiments. A covariance matrix correlating the 5 $\ddot{I}{ƒ}_{\mathrm{ABS}}$ and 5 $\ddot{I}{ƒ}_{\mathrm{CX}}$ measured data points is also reported

11 pages, 15 figures. To be submitted to PRC