TY - JOUR
T1 - Performance simulation of BaBar DIRC bar boxes in TORCH
AU - Föhl, K.
AU - Brook, N.
AU - Castillo García, L.
AU - Cussans, D.
AU - Forty, R.
AU - Frei, C.
AU - Gao, R.
AU - Gys, T.
AU - Harnew, N.
AU - Piedigrossi, D.
AU - Rademacker, J.
AU - Ros García, A.
AU - van Dijk, M.
PY - 2017/2/27
Y1 - 2017/2/27
N2 - TORCH is a large-area precision time-of-flight detector based on the DIRC principle. The DIRC bar boxes of the BaBar experiment at SLAC could possibly be reused to form a part of the TORCH detector time-of-flight wall area, proposed to provide positive particle identification of low momentum kaons in the LHCb experiment at CERN. For a potential integration of BaBar bar boxes into TORCH, new imaging readout optics are required. From the several designs of readout optics that have been considered, two are used in this paper to study the effect of BaBar bar optical imperfections on the detector reconstruction performance. The kaon-pion separation powers obtained from analysing simulated photon hit patterns show the performance reduction for a BaBar bar of non-square geometry compared to a perfectly rectangular cross section.
AB - TORCH is a large-area precision time-of-flight detector based on the DIRC principle. The DIRC bar boxes of the BaBar experiment at SLAC could possibly be reused to form a part of the TORCH detector time-of-flight wall area, proposed to provide positive particle identification of low momentum kaons in the LHCb experiment at CERN. For a potential integration of BaBar bar boxes into TORCH, new imaging readout optics are required. From the several designs of readout optics that have been considered, two are used in this paper to study the effect of BaBar bar optical imperfections on the detector reconstruction performance. The kaon-pion separation powers obtained from analysing simulated photon hit patterns show the performance reduction for a BaBar bar of non-square geometry compared to a perfectly rectangular cross section.
KW - Cherenkov light
KW - DIRC
KW - Elsarticle.cls
KW - Time-of-flight
UR - http://www.scopus.com/inward/record.url?scp=85018181700&partnerID=8YFLogxK
UR - https://dx.doi.org/10.1016/j.nima.2017.02.078
UR - https://dx.doi.org/10.1016/j.nima.2017.02.078
U2 - 10.1016/j.nima.2017.02.078
DO - 10.1016/j.nima.2017.02.078
M3 - Article
AN - SCOPUS:85018181700
SN - 0168-9002
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -