Extended Data Fig. 9: CLAS detector and its calibration performance.
From: Electron-beam energy reconstruction for neutrino oscillation measurements
a, Cutaway drawing of CLAS showing the sector structure and the different detectors. Yellow, toroidal magnet; blue, drift chambers; magenta, Cherenkov counter; red, scintillation counters (time of flight); green, electromagnetic calorimeter. The beam enters from the upper left and the target is in the center of CLAS. CLAS detector image reproduced with permission of the CLAS Collaboration. b, The 2.257-GeV 3He(e, e′pp)X missing mass for data (solid histogram) and simulation (dashed histogram). c, The H(e, e′π+)X missing mass for data (black) and fit to data (red).
