請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/79524完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 王名儒(Min-Zu Wang) | |
| dc.contributor.author | Yuan-Ru Lin | en |
| dc.contributor.author | 林沅儒 | zh_TW |
| dc.date.accessioned | 2022-11-23T09:02:44Z | - |
| dc.date.available | 2021-11-08 | |
| dc.date.available | 2022-11-23T09:02:44Z | - |
| dc.date.copyright | 2021-11-08 | |
| dc.date.issued | 2021 | |
| dc.date.submitted | 2021-10-06 | |
| dc.identifier.citation | [1] J.T. Wei et al., Study of the decay mechanism for B+→pp ̄K+ and B+→pp ̄π+, Physics Letters B 659, 80 (2008). [2] Y.T. Chen et al., Particle Indentication of Antineutron, BELLE2NOTETE2020 016. [3] K. Abe et al., Observation of B± → ppK±, Phys. Rev. Lett. 88, 181803 (2002). [4] M.Z. Wang et al., Observation of B0 → pΛπ−, Phys. Rev. Lett. 90, 201802 (2003). [5] W.S. Hou and A. Soni, Pathways to Rare Baryonic B Decays, Phys. Rev. Lett. 86, 4247 (2001). [6] S. Anderson et al., First Observation of the Decays B0 → D∗− p pπ + and B0 → D∗−pn, Phys. Rev. Lett. 86, 2732 (2001). [7] A. Abashian et al., The Belle detector, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equip ment 479, 117 (2002), Detectors for Asymmetric Bfactories. [8] T. Kuhr, C. Pulvermacher, M. Ritter, T. Hauth, and N. Braun, The Belle II Core Software, Computing and Software for Big Science 3, 1 (2018). [9] M. Gelb et al., B2BII: Data Conversion from Belle to Belle II, Computing and Software for Big Science 2 (2018). [10] F. Chollet et al., Keras, https://keras.io, 2015. [11] K.J. Tien and M.Z. Wang, Proton identification efficiency study, Belle Note 1279. [12] K.F. Chen, T.L. Kuo, and Y.J. Lee, Λ Selection at Belle, Belle Note 684. [13] W.L. Yeh, Study of proton identification at Belle, Belle Note 1126. [14] K. for Belle calorimeter group, Shower reconstruction and photon selection at Belle CsI calorimeter, Belle Note 679. [15] B2BIIConvertMdstModule Class Reference. [16] Particle Class Reference. [17] K.N. Chu and Y.R. Lin, Study of B+ → pn ̄π0, Belle Note 1586. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/79524 | - |
| dc.description.abstract | 我們在 Belle 實驗中藉由其電磁量能器的資訊開發出了鑑別反中子於其他中性粒子（也就是光子、中子和中性長命 K 介子）的演算法。我們利用一控制組衰變 Λ ̄→p ̄π+ 研究了此演算法在模擬與實際表現上之差異，其中，我們基於同位旋對稱性假設反質子在偵測器中的反應與反中子相近。 | zh_TW |
| dc.description.provenance | Made available in DSpace on 2022-11-23T09:02:44Z (GMT). No. of bitstreams: 1 U0001-2709202116542500.pdf: 4136862 bytes, checksum: 41f1e1299c7d2b85f69f57c1b0469879 (MD5) Previous issue date: 2021 | en |
| dc.description.tableofcontents | "Verification Letter from the Oral Examination Committee i Acknowledgements ii Abstract iii 摘要 iv Contents v List of Figures viii List of Tables xi 1 Motivation 1 1.1 Baryonic B Decays ........................ 1 1.2 Baryonic B Decays with n ̄ in the Final State . . . . . . . . . . 1 1.2.1 Observation of B0 → D∗− pn ̄ by the CLEO Collaboration ..... 4 1.2.2 Reproducibility and Advantages at the Belle Experiment ..... 4 1.2.3 Modes of Interests B→pn ̄h− (h=K,π) . . . . . . . . . 5 1.2.3.1 B ̄0→pn ̄K− .................. 5 1.2.3.2 B0/B ̄0→pn ̄π− ................ 6 2 The Belle Experiment 7 2.1 KEKB Accelerator ............................. 7 2.2 Belle Detector ............................... 8 2.2.1 Beam Pipe.............................. 8 2.2.2 Silicon Vertex Detector (SVD) ................... 9 2.2.3 Extreme Forward Calorimeter (EFC) ................ 10 2.2.4 Central Drift Chamber (CDC).................... 10 2.2.5 Aerogel Cherenkov Counter (ACC)................. 12 2.2.6 Time-of-flight counters (TOF).................... 13 2.2.7 Electromagnetic Calorimeter (ECL). . . . . . . . . . . . . . . . . 14 2.2.8 KL and μ detection system (KLM) ................. 15 3 Analysis Method 17 3.1 Simulation ................................. 17 3.2 Belle II Analysis Framework(BASF2) .................. 17 3.2.1 B2BII ................................ 18 3.3 Multivariate Analysis with Neural Network . . . . . . . . . . . . . . . . 18 4 Monte Carlo Study 21 4.1 MVA with DNN .............................. 22 4.1.1 Training Results ........................... 22 5 Calibration 26 5.1 Event Selection for Λ ̄→p ̄π+ ....................... 27 5.2 Fitting Procedure .............................. 29 5.3 Result .................................... 31 5.3.1 Discussion on Discrepancy ..................... 31 6 Validation 35 A NeutralHadron4MomentumCalculator 38 Bibliography 40" | |
| dc.language.iso | en | |
| dc.title | 在 Belle 實驗作反中子鑑別的研析 | zh_TW |
| dc.title | The Study of Anti-neutron Identification at Belle experiment | en |
| dc.date.schoolyear | 109-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 張寶棣(Hsin-Tsai Liu),徐靜戈(Chih-Yang Tseng),張敏娟 | |
| dc.subject.keyword | Belle 實驗,反中子,鑑別, | zh_TW |
| dc.subject.keyword | Belle,anti-neutron,identification, | en |
| dc.relation.page | 41 | |
| dc.identifier.doi | 10.6342/NTU202103402 | |
| dc.rights.note | 同意授權(全球公開) | |
| dc.date.accepted | 2021-10-08 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 物理學研究所 | zh_TW |
| 顯示於系所單位： | 物理學系 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| U0001-2709202116542500.pdf | 4.04 MB | Adobe PDF | 檢視/開啟 |
系統中的文件，除了特別指名其著作權條款之外，均受到著作權保護，並且保留所有的權利。