| dc.identifier.uri | http://hdl.handle.net/11401/76700 | |
| dc.description.sponsorship | This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree. | en_US |
| dc.format | Monograph | |
| dc.format.medium | Electronic Resource | en_US |
| dc.language.iso | en_US | |
| dc.publisher | The Graduate School, Stony Brook University: Stony Brook, NY. | |
| dc.type | Dissertation | |
| dcterms.abstract | The T2K Experiment is a long-baseline neutrino experiment that stretches 295 km from the east to the west coast of Japan (Tokai-Mura to Kamioka). One of the major goals of the experiment is a measurement of theta_{13} and (if theta_{13} is non-zero) potentially CP violation in the lepton sector. This is performed by searching for nu_e appearance in a nu_mu beam from the Japan Proton Accelerator Research Complex (J-PARC). The far detector, Super Kamiokande (SK), is a water Cherenkov detector. One of the dominant background for SK in the oscillation measurement is the uncertainty on the cross section of the Neutral Current Single Pi0 (NC1Pi0) interaction. In order to constrain this background, the Pi0 detector (P0D) was placed in the near detector complex, 280 meters from the beam origin. The P0D was constructed with a water target that can be filled an drained in order to perform a material subtraction to measure various cross sections on-water. This analysis presents the first on-water NC1Pi0 rate measurement with a neutrino beam energy less than 1 GeV. Using the NEUT Monte Carlo, a cut selection was developed in order to accentuate the difference between the signal and background shapes of the reconstructed invariant mass of the Pi0 particle. The selected events and a muon decay sideband, used to constrain the shape of the background events, are then simultaneously fit in order to extract an observed number of signal events. The observed data is then compared to Monte Carlo. Using T2K Runs 1-4 (total of 6.13 x 10^20 protons on target), a ratio of 0.790+-0.76(stat)+-0143(sys) (0.850+-0.091(stat)+-0.137(sys)) is found for the P0D water-in (water-out) configuration. After calculating the subtracted number of events on-water from the water-in and water-out data, a data to NEUT Monte Carlo ratio of 0.677 +- 0.261(stat) +- 0.462(sys) is found for the rate of NC1Pi0 interactions on-water. | |
| dcterms.available | 2017-09-20T16:51:01Z | |
| dcterms.contributor | Jung, Chang Kee | en_US |
| dcterms.contributor | Dawber, Matt | en_US |
| dcterms.contributor | Meade, Patrick | en_US |
| dcterms.contributor | Mauger, Christopher. | en_US |
| dcterms.creator | Gilje, Karin Elisabeth | |
| dcterms.dateAccepted | 2017-09-20T16:51:01Z | |
| dcterms.dateSubmitted | 2017-09-20T16:51:01Z | |
| dcterms.description | Department of Physics. | en_US |
| dcterms.extent | 193 pg. | en_US |
| dcterms.format | Monograph | |
| dcterms.format | Application/PDF | en_US |
| dcterms.identifier | http://hdl.handle.net/11401/76700 | |
| dcterms.issued | 2014-12-01 | |
| dcterms.language | en_US | |
| dcterms.provenance | Made available in DSpace on 2017-09-20T16:51:01Z (GMT). No. of bitstreams: 1
Gilje_grad.sunysb_0771E_11949.pdf: 8281851 bytes, checksum: e8ca14923483e60cb4b8fea3ad7c83df (MD5)
Previous issue date: 1 | en |
| dcterms.publisher | The Graduate School, Stony Brook University: Stony Brook, NY. | |
| dcterms.subject | Particle physics | |
| dcterms.subject | ND280, neutral current, neutrino, Pi-Zero Detector, T2K | |
| dcterms.title | Neutral Current Pi-zero Production Rate Measurement On-Water Using the Pi-Zero Detector in the Near Detector of the T2K Experiment | |
| dcterms.type | Dissertation | |
