{"title":"T2K近探测器ND280的升级:对振荡的影响及截面分析","authors":"M. Lamoureux, F. C. Collaboration","doi":"10.22323/1.295.0056","DOIUrl":null,"url":null,"abstract":"The T2K neutrino oscillation experiment established the $\\nu_\\mu \\rightarrow \\nu_e$ appearance with only $10\\%$ of the original beam request of $7.8\\times10^{21}$ $30$ GeV protons on target (POT). In view of the J-PARC program of upgrades of the beam intensity, the T2K-II proposal for $20\\times10^{21}$ POT aimed at establishing CP violation at $3\\sigma$ level for a significant fraction of the possible $\\delta_{CP}$ values. The Hyper-K proposal consists of a further increase by a factor $10$ of the far detector mass. Facing the potential increase of statistics by two orders of magnitude, it is of great importance to undertake a vigorous program of near detector upgrade, with the aim of reducing the overall statistical and systematic uncertainties at the appropriate level of better than $4\\%$. The design and performance of the proposed upgraded near-detector will be reported in these proceedings.","PeriodicalId":8827,"journal":{"name":"arXiv: Instrumentation and Detectors","volume":"8 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Upgrade of the T2K near detector ND280: effect on oscillation and cross-section analysis\",\"authors\":\"M. Lamoureux, F. C. Collaboration\",\"doi\":\"10.22323/1.295.0056\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The T2K neutrino oscillation experiment established the $\\\\nu_\\\\mu \\\\rightarrow \\\\nu_e$ appearance with only $10\\\\%$ of the original beam request of $7.8\\\\times10^{21}$ $30$ GeV protons on target (POT). In view of the J-PARC program of upgrades of the beam intensity, the T2K-II proposal for $20\\\\times10^{21}$ POT aimed at establishing CP violation at $3\\\\sigma$ level for a significant fraction of the possible $\\\\delta_{CP}$ values. The Hyper-K proposal consists of a further increase by a factor $10$ of the far detector mass. Facing the potential increase of statistics by two orders of magnitude, it is of great importance to undertake a vigorous program of near detector upgrade, with the aim of reducing the overall statistical and systematic uncertainties at the appropriate level of better than $4\\\\%$. The design and performance of the proposed upgraded near-detector will be reported in these proceedings.\",\"PeriodicalId\":8827,\"journal\":{\"name\":\"arXiv: Instrumentation and Detectors\",\"volume\":\"8 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-03-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv: Instrumentation and Detectors\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.22323/1.295.0056\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv: Instrumentation and Detectors","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22323/1.295.0056","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Upgrade of the T2K near detector ND280: effect on oscillation and cross-section analysis
The T2K neutrino oscillation experiment established the $\nu_\mu \rightarrow \nu_e$ appearance with only $10\%$ of the original beam request of $7.8\times10^{21}$ $30$ GeV protons on target (POT). In view of the J-PARC program of upgrades of the beam intensity, the T2K-II proposal for $20\times10^{21}$ POT aimed at establishing CP violation at $3\sigma$ level for a significant fraction of the possible $\delta_{CP}$ values. The Hyper-K proposal consists of a further increase by a factor $10$ of the far detector mass. Facing the potential increase of statistics by two orders of magnitude, it is of great importance to undertake a vigorous program of near detector upgrade, with the aim of reducing the overall statistical and systematic uncertainties at the appropriate level of better than $4\%$. The design and performance of the proposed upgraded near-detector will be reported in these proceedings.
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