Speaker
Carlos Eugenio Perez Lara
(Stony Brook University)
Description
The Muon Piston Calorimeter Detector Extension (MPC-EX) is a silicon strip preshower detector recently installed at PHENIX.
The MPC-EX detector comprises two arms of eight layers each, which in turn are composed of 2 mm of tungsten and 0.5 mm of Silicon with a pitch of 2 x 15 mm$^2$.
Due to its granularity, forward acceptance and complementarity to the MPC calorimeter, it will allow for precise $\pi^0$ and direct photons spectra measurments, jet reconstruction and the quantification of flow observables.
Last year, the MPC-EX and MPC detectors' particle separation power and energy resolution were tested with a monochomatic testbeam of 9 and 12 GeV/c electrons at SLAC.
This year, both detectors has succesfully taken data during both p-p and p-Au runs from where we have obtained first results of the performance of the detector in both systems.
The MPC-EX detector perfomance in the testbeam and Run15 is presented here.
| On behalf of collaboration: | PHENIX |
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Author
Carlos Eugenio Perez Lara
(Stony Brook University)
