Description
After the construction and the successful operation of the first technological prototype of The Semi-Digital Hadronic CALorimeter (SDHCAL), developed within the CALICE collaboration, the prototype has been extensively tested in beam test facilities. Refined analysis techniques are being developed to improve the energy and shower reconstruction. In particular, combining advance reconstruction techniques like in shower tracking by Hough transform with use of TMVA's Boosted Decision Tree, allows to select high purity pion samples down to a few GeV. With such a selection, pion energy reconstruction capacity with the SDHCAL have been extended down to 3 GeV.
In addition the prototype has been exposed to pion beams with various incidence angles. A better treatment of the particle incidence angle in the energy reconstruction has been established.
The talk will present these analysis techniques and the SDHCAL pion energy reconstruction performance.
