Spectroscopic characterization of buffer-gas-cooled lead monofluoride molecules in the B 2 Σ + ( v '=0) ← X 1 2Π1/2(v=0) transition
文献类型：期刊论文
| 作者 | Wang, Zesen4; Pang, Renjun4; Ma, Jie4; Lin, Qinning4; Hou, Shunyong4; Wang, Hailing4; Li, Xiaohu3,5,7 ; Xu, Liang1; Li, Xingjia6; Chen, Guanglong6
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| 刊名 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
 |
| 出版日期 | 2025-03-15 |
| 卷号 | 329页码:125508 |
| 关键词 | Lead monofluoride (PbF) molecule buffer-gas cooling (BGC) electron Electric Dipole Moment ( e EDM) |
| ISSN号 | 1386-1425 |
| DOI | 10.1016/j.saa.2024.125508 |
| 产权排序 | 2 |
| 英文摘要 | Establishing a nonzero measurement of the electron Electric Dipole Moment (eEDM) has long been a fundamental pursuit in atomic, molecular and optical physics, offering possible insights into new physics beyond the Standard Model. In this regard, lead monofluoride (PbF) has emerged as a potential candidate for measuring eEDM primarily due to its suitable properties such as the strong internal effective electric field, and eEDM-sensitive ground state with large Omega-doubling and small magnetic g factor. In the present work, we realized the production of a buffer-gas-cooled PbF molecular beam and characterized its high-resolution spectroscopy in the B 2 Sigma+(v'=0)<- X1 2 Pi 1/2(v = 0) transition, including both direct absorption and laser-induced fluorescence spectroscopy. A highly concentrated beam of PbF molecules is obtained with a central forward velocity of 223 +/- 17 m/s, while 81, 66 and 24 hyperfine-structure-resolved spectral lines with a frequency accuracy of 40 MHz have been assigned respectively for 208 PbF, 207 PbF and 206 PbF isotopologues. The hyperfine constants due to the 19 F nucleus (A & Vert; A & Vert; and A perpendicular to ) of the B state are reported for the first time, and those of the 207 Pb nucleus have been also updated. Such a cryogenic molecular beam of PbF in association with its hyperfine-structure-resolved spectral atlas of the B 2 E + (v'=0)- X 1 2 N 1/2 (v = 0) transition will be essential in developing sensitive detection schemes towards the e EDM measurement. |
| WOS关键词 | ELECTRIC-DIPOLE MOMENT ; RADIATIVE LIFETIMES ; UPPER LIMIT ; CESIUM ATOM ; STATES ; BEAM ; COLD ; PBF |
| 资助项目 | National Natural Science Foundation of China[11874151] ; National Natural Science Foundation of China[12304310] ; National Natural Science Foundation of China[12174247] ; National Natural Science Foundation of China[12473025] ; Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning ; Young Top-Notch Talent Support Program of Shanghai ; Xinjiang Tianchi Talent Program ; Shanghai Natural Science Foundation[22ZR1421400] ; NSF[CHE-1955310] ; Natural Science Foundation of Xinjiang Uygur Autonomous Region[2024D01E37] ; [12274140] |
| WOS研究方向 | Spectroscopy |
| 语种 | 英语 |
| WOS记录号 | WOS:001385074200001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning ; Young Top-Notch Talent Support Program of Shanghai ; Xinjiang Tianchi Talent Program ; Shanghai Natural Science Foundation ; NSF ; Natural Science Foundation of Xinjiang Uygur Autonomous Region |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7337]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Liu, Jinjun; Yang, Tao |
| 作者单位 | 1.Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Shanghai 200093, Peoples R China 2.Univ Louisville, Dept Phys, Louisville, KY 40292 USA 3.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 4.East China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China 5.Chinese Acad Sci, Key Lab Radio Astron & Technol, A20 Datun Rd, Beijing 100101, Peoples R China 6.Shanghai Univ Engn Sci, Sch Math Phys & Stat, Shanghai 201620, Peoples R China 7.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 8.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Shanxi, Peoples R China 9.Univ Louisville, Dept Chem, Louisville, KY 40292 USA |
| 推荐引用方式 GB/T 7714 | Wang, Zesen,Pang, Renjun,Ma, Jie,et al. Spectroscopic characterization of buffer-gas-cooled lead monofluoride molecules in the B 2 Σ + ( v '=0) ← X 1 2Π1/2(v=0) transition[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2025,329:125508. |
| APA | Wang, Zesen.,Pang, Renjun.,Ma, Jie.,Lin, Qinning.,Hou, Shunyong.,...&Yang, Tao.(2025).Spectroscopic characterization of buffer-gas-cooled lead monofluoride molecules in the B 2 Σ + ( v '=0) ← X 1 2Π1/2(v=0) transition.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,329,125508. |
| MLA | Wang, Zesen,et al."Spectroscopic characterization of buffer-gas-cooled lead monofluoride molecules in the B 2 Σ + ( v '=0) ← X 1 2Π1/2(v=0) transition".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 329(2025):125508. |
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来源：新疆天文台
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