Final published version
Research output: Contribution to Journal/Magazine › Journal article
Research output: Contribution to Journal/Magazine › Journal article
}
TY - JOUR
T1 - Reconstruction of neutrino induced NC-1π0 using the T2K-ND280 tracker
AU - O'Keeffe, H. M.
AU - Vacheret, A.
AU - Barr, G. D.
AU - Jacob, A.
AU - Weber, A.
AU - Williamson, Z.
PY - 2015/5/15
Y1 - 2015/5/15
N2 - Single π0 production is the one of the most important backgrounds in the υe appearance measurement in T2K. Large uncertainties in this production make it difficult to predict. Measurement at the near detector (ND280) is required both to constrain the background prediction at the far detector (Super-K) and also at the near detector to improve knowledge of beam υe contamination. We present an analysis based on Monte Carlo simulation of neutral current (NC) single π0 in the tracker region. NC-1π0 events are selected using a specific two-gamma signature in the tracker region. One decay gamma is reconstructed by selecting an e+/e- pair starting in the Fine-Grained target Detector (FGD) and extending into the TPC, where the leptons can be identified and their momentum measured accurately. The second gamma is then selected in-time in the Calorimeter modules surrounding the tracker. Selections cuts, efficiency and purity of the selection are presented and projection of the expected number of single π0 candidates for 3 × 1020 protons on target (PoT) exposure is made.
AB - Single π0 production is the one of the most important backgrounds in the υe appearance measurement in T2K. Large uncertainties in this production make it difficult to predict. Measurement at the near detector (ND280) is required both to constrain the background prediction at the far detector (Super-K) and also at the near detector to improve knowledge of beam υe contamination. We present an analysis based on Monte Carlo simulation of neutral current (NC) single π0 in the tracker region. NC-1π0 events are selected using a specific two-gamma signature in the tracker region. One decay gamma is reconstructed by selecting an e+/e- pair starting in the Fine-Grained target Detector (FGD) and extending into the TPC, where the leptons can be identified and their momentum measured accurately. The second gamma is then selected in-time in the Calorimeter modules surrounding the tracker. Selections cuts, efficiency and purity of the selection are presented and projection of the expected number of single π0 candidates for 3 × 1020 protons on target (PoT) exposure is made.
KW - J-PARC
KW - ND280
KW - Neutrinos
KW - T2K experiment
U2 - 10.1063/1.4919522
DO - 10.1063/1.4919522
M3 - Journal article
AN - SCOPUS:85006189440
VL - 1663
JO - AIP Conference Proceedings
JF - AIP Conference Proceedings
SN - 0094-243X
IS - 1
M1 - 120016
T2 - 8th International Workshop on Neutrino-Nucleus Interactions in the Few-GeV Region, NuINT 2012
Y2 - 22 October 2012 through 27 October 2012
ER -