Performances of a BaF2 detector and its application to the search for beta beta decay modes in Ba-130
文献类型：期刊论文
| 作者 | Cerulli, R; Belli, P; Bernabei, R; Cappella, F; Nozzoli, F; Montecchia, F; d'Angelo, A; Incicchitti, A; Prosperi, D; Dai, CJ |
| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
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| 出版日期 | 2004 |
| 卷号 | 525期号:3页码:535-543 |
| 关键词 | BaF2 crystal scintillator double beta decay Ba isotopes |
| 通讯作者 | Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, I-67010 Assergi, AQ, Italy ; Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy ; Ist Nazl Fis Nucl, Sez Roma 2, I-00133 Rome, Italy ; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy ; Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy ; Chinese Acad, IHEP, Beijing 100039, Peoples R China |
| 英文摘要 | The potentiality of the coincidence technique to search for betabeta decay processes in Ba-130 has been studied. A BaF2 crystal scintillator with a mass of 3615 g and two low background NaI(Tl) detectors have been used for this purpose. The performances of the BaF2 detector in the used set-up have preliminarily been investigated, in particular: (i) the alpha/beta light ratio, (ii) the pulse shape discrimination capability between alpha and beta particles, (iii) the main radioactive contaminations of the crystal. As a result, new limits (90% CL) on the lifetimes of the following double beta decay processes in Ba-130 have been determined: tau(2beta+0v(0+-->0+)) > 1.1 x 10(17) y, tau(2beta+0v(0+-->21+)) > 1.5 x 10(17) y, tau(ECbeta+0v(0+-->0+)) > 2.0 x 10(17) y, tau(ECbeta+0v(0+-->21+)) > 1.6 x 10(17) y, tau(ECbeta+0v(0+-->22+)) > 2.0 x 10(17) y and tau(ECbeta+0v(0+-->4+)) > 1.1 x 10(17) y. The new experimental limits obtained for the 0v(0(+)-->0(+)) decay modes represent a significant improvement with respect to those previously available for this isotope, while those involving excited levels are set here for the first time. (C) 2004 Elsevier B.V. All rights reserved. |
| 学科主题 | Instruments & Instrumentation; Nuclear Science & Technology; Physics; Spectroscopy |
| 类目[WOS] | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics, Particles & Fields ; Spectroscopy |
| 研究领域[WOS] | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics ; Spectroscopy |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222229300012 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/237862]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Cerulli, R,Belli, P,Bernabei, R,et al. Performances of a BaF2 detector and its application to the search for beta beta decay modes in Ba-130[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2004,525(3):535-543. |
| APA | Cerulli, R.,Belli, P.,Bernabei, R.,Cappella, F.,Nozzoli, F.,...&戴长江.(2004).Performances of a BaF2 detector and its application to the search for beta beta decay modes in Ba-130.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,525(3),535-543. |
| MLA | Cerulli, R,et al."Performances of a BaF2 detector and its application to the search for beta beta decay modes in Ba-130".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 525.3(2004):535-543. |
入库方式： OAI收割
来源：高能物理研究所
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