Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN.,Physical Review Letters

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Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN.
Physical Review Letters ( IF 8.1 ) Pub Date : 2019-11-29 , DOI: 10.1103/physrevlett.123.221802
M Aker _{1,

2} , K Altenmüller _{3,

4,

5} , M Arenz ₆ , M Babutzka ₇ , J Barrett ₈ , S Bauer ₉ , M Beck _{9,

10} , A Beglarian ₁₁ , J Behrens _{1,

7,

9} , T Bergmann _{3,

5,

11} , U Besserer _{1,

2} , K Blaum ₁₂ , F Block ₇ , S Bobien ₂ , K Bokeloh ₉ , J Bonn ₁₀ , B Bornschein _{1,

2} , L Bornschein ₁ , H Bouquet ₁₁ , T Brunst _{3,

5} , T S Caldwell _{13,

14} , L La Cascio ₇ , S Chilingaryan ₁₁ , W Choi ₇ , T J Corona _{8,

13,

14} , K Debowski _{7,

15} , M Deffert ₇ , M Descher ₇ , P J Doe ₁₆ , O Dragoun ₁₇ , G Drexlin _{1,

7} , J A Dunmore ₁₆ , S Dyba ₉ , F Edzards _{3,

5} , L Eisenblätter ₁₁ , K Eitel ₁ , E Ellinger ₁₅ , R Engel _{1,

7} , S Enomoto ₁₆ , M Erhard ₇ , D Eversheim ₆ , M Fedkevych ₉ , A Felden ₁ , S Fischer _{1,

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13,

14} , G B Franklin ₁₈ , H Frankrone ₁₁ , F Friedel ₇ , D Fuchs _{3,

5} , A Fulst ₉ , D Furse ₈ , K Gauda ₉ , H Gemmeke ₁₁ , W Gil ₁ , F Glück ₁ , S Görhardt ₁ , S Groh ₇ , S Grohmann ₂ , R Grössle _{1,

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5} , M A Howe _{13,

14} , A Huber ₇ , T M James ₂ , A Jansen ₁ , A Kaboth ₈ , C Karl _{3,

5} , O Kazachenko ₁₉ , J Kellerer ₇ , N Kernert ₁ , L Kippenbrock ₁₆ , M Kleesiek ₇ , M Klein _{1,

7} , C Köhler _{3,

5} , L Köllenberger ₁ , A Kopmann ₁₁ , M Korzeczek ₇ , A Kosmider ₁ , A Kovalík ₁₇ , B Krasch _{1,

2} , M Kraus ₇ , H Krause ₁ , L Kuckert ₁ , B Kuffner ₁ , N Kunka ₁₁ , T Lasserre _{3,

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5} , T L Le _{1,

2} , O Lebeda ₁₇ , M Leber ₁₆ , B Lehnert ₂₀ , J Letnev ₂₁ , F Leven ₇ , S Lichter ₁ , V M Lobashev ₁₉ , A Lokhov _{9,

19} , M Machatschek ₇ , E Malcherek ₁ , K Müller ₁ , M Mark ₁ , A Marsteller _{1,

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14,

16} , C Melzer _{1,

2} , A Menshikov ₁₁ , S Mertens _{1,

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14} , P Plischke ₁ , A Pollithy _{3,

5} , A W P Poon ₂₀ , J Pouryamout ₁₅ , M Prall ₉ , F Priester _{1,

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2} , C Röttele _{1,

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7} , P C-O Ranitzsch ₉ , O Rest ₉ , R Rinderspacher ₁ , R G H Robertson ₁₆ , C Rodenbeck ₉ , P Rohr ₁₁ , Ch Roll ₂₃ , S Rupp _{1,

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7} , M Ryšavý ₁₇ , R Sack ₉ , A Saenz ₂₃ , P Schäfer _{1,

2} , L Schimpf ₇ , K Schlösser ₁ , M Schlösser _{1,

2} , L Schlüter _{3,

5} , H Schön ₂ , K Schönung _{1,

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5} , A Skasyrskaya ₁₉ , M Slezák _{5,

17} , A Špalek ₁₇ , F Spanier ₁ , M Steidl ₁ , N Steinbrink ₉ , M Sturm _{1,

2} , M Suesser ₂ , M Sun ₁₆ , D Tcherniakhovski ₁₁ , H H Telle ₂₄ , T Thümmler _{1,

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5} , D Vénos ₁₇ , K Valerius _{1,

9} , B A VanDevender ₁₆ , R Vianden ₆ , A P Vizcaya Hernández ₁₈ , B L Wall ₁₆ , S Wüstling ₁₁ , M Weber ₁₁ , C Weinheimer ₉ , C Weiss ₂₅ , S Welte _{1,

2} , J Wendel _{1,

2} , K J Wierman _{13,

14} , J F Wilkerson _{13,

14} , J Wolf ₇ , W Xu ₈ , Y-R Yen ₁₈ , M Zacher ₉ , S Zadorozhny ₁₉ , M Zbořil _{9,

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Affiliation

Institute for Nuclear Physics (IKP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
Institute for Technical Physics (ITEP), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany.
IRFU (DPhP & APC), CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France.
Max-Planck-Institut für Physik, Föhringer Ring 6, 80805 München, Germany.
Helmholtz-Institut für Strahlen- und Kernphysik, Rheinische Friedrich-Wilhelms-Universität Bonn, Nussallee 14-16, 53115 Bonn, Germany.
Institute of Experimental Particle Physics (ETP), Karlsruhe Institute of Technology (KIT), Wolfgang-Gaede-Straße 1, 76131 Karlsruhe, Germany.
Laboratory for Nuclear Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
Institut für Kernphysik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, 48149 Münster, Germany.
Institut für Physik, Johannes-Gutenberg-Universität Mainz, 55099 Mainz, Germany.
Institute for Data Processing and Electronics (IPE), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany.
Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA.
Department of Physics, Faculty of Mathematics and Natural Sciences, University of Wuppertal, Gaußstraße 20, 42119 Wuppertal, Germany.
Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA.
Nuclear Physics Institute of the CAS, v. v. i., CZ-250 68 Řež, Czech Republic.
Department of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
Institute for Nuclear Research of Russian Academy of Sciences, 60th October Anniversary Prospect 7a, 117312 Moscow, Russia.
Institute for Nuclear and Particle Astrophysics and Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
University of Applied Sciences (HFD) Fulda, Leipziger Straße 123, 36037 Fulda, Germany.
Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, USA.
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany.
Departamento de Química Física Aplicada, Universidad Autonoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain.
Project, Process, and Quality Management (PPQ), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.

We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are energy analyzed by a high-resolution MAC-E filter. A fit of the integrated electron spectrum over a narrow interval around the kinematic end point at 18.57 keV gives an effective neutrino mass square value of (-1.0_{-1.1}^{+0.9}) eV^{2}. From this, we derive an upper limit of 1.1 eV (90% confidence level) on the absolute mass scale of neutrinos. This value coincides with the KATRIN sensitivity. It improves upon previous mass limits from kinematic measurements by almost a factor of 2 and provides model-independent input to cosmological studies of structure formation.

中文翻译：

通过KATRIN的直接运动学方法改进了中微子质量的上限。

我们报告了2019年春季卡尔斯鲁厄Tri中微子实验KATRIN的前四周科学实验的中微子质量测量结果。来自高纯度气态分子molecular源的β衰变电子通过高分辨率MAC-进行能量分析E过滤器。积分电子光谱在运动学端点在18.57 keV附近的狭窄区间内的拟合给出了（-1.0 _ {-1.1} ^ {+ 0.9}）eV ^ {2}的有效中微子质量平方值。由此，我们得出了中微子绝对质量尺度上的1.1 eV（90％置信水平）的上限。该值与KATRIN灵敏度一致。它比以前的运动学测量质量极限提高了将近2倍，并为结构形成的宇宙学研究提供了与模型无关的输入。

更新日期：2019-11-26

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