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首页> 外文期刊>Physical review, C >Search for 2 nu beta beta decay of Xe-136 to the 0(1)(+) excited state of Ba-136 with the EXO-200 liquid xenon detector
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Search for 2 nu beta beta decay of Xe-136 to the 0(1)(+) excited state of Ba-136 with the EXO-200 liquid xenon detector

机译：使用EXO-200液态氙探测器搜索XE-136的2NUβBETA衰变至XE-136至0（1）（+）兴奋状态

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摘要

EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless pp decay of Xe-136 to the ground state of Ba-136. We report here on a search for the two -neutrino pp decay of Xe-136 to the first 0+ excited state, 0(1)(+), of Ba-136 based on a 100 kg yr exposure of Xe-136. Using a specialized analysis employing a machine learning algorithm, we obtain a 90% CL half-life sensitivity of 1.7 x 10(24) yr. We find no statistically significant evidence for the 20P decay to the excited state resulting in a lower limit of Ti-1/2(7 nu) (0(+) -> 0(1)(+)) > 6.9 x10(23) yr at 90% CL. This observed limit is consistent with the estimated half-life of 2.5 x 10(25) yr.
机译：EXO-200是一个单相液体氙探测器，旨在将XE-136的中子素PP衰减搜索到BA-136的地位。 我们在此报告关于XE-136的两个-neutinoPP衰减到基于XE-136的100kg YR暴露的BA-136的第一个0+激发状态，0（1）（+）的两个-NeutinoPP衰减。 使用采用机器学习算法的专业分析，我们获得了90％的CL半衰期灵敏度为1.7 x 10（24）。 我们发现20P衰减到激发态没有统计学上有明显的证据，导致Ti-1/2（7元）的下限（0（+） - > 0（1）（+））> 6.9 x10（23） 在90％cl。 这种观察到的极限与估计的半衰期为2.5×10（25）次）。

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  • 来源
    《Physical review, C》 |2016年第3期|共9页
  • 作者

    Albert J. B.; Auty D. J.; Barbeau P. S.; Beck D.; Belov V.; Breidenbach M.; Brunner T.; Burenkov A.; Cao G. F.; Chambers C.; Chaves J.; Cleveland B.; Coon M.; Craycraft A.; Daniels T.; Danilov M.; Daugherty S. J.; Davis J.; Delaquis S.; Mesrobian-Kabakian A. Der; DeVoe R.; Didberidze T.; Dilling J.; Dolgolenko A.; Dolinski M. J.; Dunford M.; Fairbank W. Jr.; Farine J.; Feldmeier W.; Feyzbakhsh S.; Fierlinger P.; Fudenberg D.; Gornea R.; Graham K.; Gratta G.; Hall C.; Hughes M.; Jewell M. J.; Johnson A.; Johnson T. N.; Johnston S.; Karelin A.; Kaufman L. J.; Killick R.; King J.; Koffas T.; Kravitz S.; Kruecken R.; Kuchenkov A.; Kumar K. S.; Leonard D. S.; Licciardi C.; Lin Y. H.; Ling J.; MacLellan R.; Marino M. G.; Mong B.; Moore D.; Njoya O.; Nelson R.; Odian A.; Ostrovskiy I.; Piepke A.; Pocar A.; Prescott C. Y.; Retiere F.; Rowson P. C.; Russell J. J.; Schubert A.; Sinclair D.; Smith E.; Stekhanov V.; Tarka M.; Tolba T.; Tsang R.; Twelker K.; Vogel P.; Vuilleumier J. -L.; Waite A.; Walton J.; Walton T.; Weber M.; Wen L. J.; Wichoski U.; Winick T. A.; Wood J.; Xu Q. Y.; Yang L.; Yen Y. -R.; Zeldovich O. Ya.;

  • 作者单位

    Indiana Univ Dept Phys Bloomington IN 47405 USA;

    Univ Alabama Dept Phys &

    Astron Tuscaloosa AL 35487 USA;

    Duke Univ Dept Phys Durham NC 27708 USA;

    Univ Illinois Dept Phys 1110 W Green St Urbana IL 61801 USA;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    McGill Univ Dept Phys Montreal PQ H3A 2T8 Canada;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

    Inst High Energy Phys Beijing 100039 Peoples R China;

    Colorado State Univ Dept Phys Ft Collins CO 80523 USA;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    Laurentian Univ Dept Phys Sudbury ON P3E 2C6 Canada;

    Univ Illinois Dept Phys 1110 W Green St Urbana IL 61801 USA;

    Colorado State Univ Dept Phys Ft Collins CO 80523 USA;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

    Indiana Univ Dept Phys Bloomington IN 47405 USA;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    Univ Bern Albert Einstein Ctr LHEP Bern Switzerland;

    Laurentian Univ Dept Phys Sudbury ON P3E 2C6 Canada;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    Univ Alabama Dept Phys &

    Astron Tuscaloosa AL 35487 USA;

    TRIUMF Vancouver BC V6T 2A3 Canada;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

    Drexel Univ Dept Phys Philadelphia PA 19104 USA;

    Carleton Univ Dept Phys Ottawa ON K1S 5B6 Canada;

    Colorado State Univ Dept Phys Ft Collins CO 80523 USA;

    Laurentian Univ Dept Phys Sudbury ON P3E 2C6 Canada;

    Tech Univ Munich Phys Dept &

    Excellence Cluster Universe D-80805 Garching Germany;

    Univ Massachusetts Amherst Ctr Fundamental Interact Amherst MA 01003 USA;

    Tech Univ Munich Phys Dept &

    Excellence Cluster Universe D-80805 Garching Germany;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    TRIUMF Vancouver BC V6T 2A3 Canada;

    Carleton Univ Dept Phys Ottawa ON K1S 5B6 Canada;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    Univ Maryland Dept Phys College Pk MD 20742 USA;

    Univ Alabama Dept Phys &

    Astron Tuscaloosa AL 35487 USA;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    Indiana Univ Dept Phys Bloomington IN 47405 USA;

    Univ Massachusetts Amherst Ctr Fundamental Interact Amherst MA 01003 USA;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

    Indiana Univ Dept Phys Bloomington IN 47405 USA;

    Carleton Univ Dept Phys Ottawa ON K1S 5B6 Canada;

    Univ Massachusetts Amherst Ctr Fundamental Interact Amherst MA 01003 USA;

    Carleton Univ Dept Phys Ottawa ON K1S 5B6 Canada;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    TRIUMF Vancouver BC V6T 2A3 Canada;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

    SUNY Stony Brook Dept Phys &

    Astron Stony Brook NY 11794 USA;

    IBS Ctr Underground Phys Taejon South Korea;

    Carleton Univ Dept Phys Ottawa ON K1S 5B6 Canada;

    Drexel Univ Dept Phys Philadelphia PA 19104 USA;

    Univ Illinois Dept Phys 1110 W Green St Urbana IL 61801 USA;

    Univ S Dakota Dept Phys Vermillion SD 57069 USA;

    Tech Univ Munich Phys Dept &

    Excellence Cluster Universe D-80805 Garching Germany;

    Laurentian Univ Dept Phys Sudbury ON P3E 2C6 Canada;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    SUNY Stony Brook Dept Phys &

    Astron Stony Brook NY 11794 USA;

    Waste Isolat Pilot Plant Carlsbad NM 88220 USA;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    Univ Alabama Dept Phys &

    Astron Tuscaloosa AL 35487 USA;

    Univ Massachusetts Amherst Ctr Fundamental Interact Amherst MA 01003 USA;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    TRIUMF Vancouver BC V6T 2A3 Canada;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    TRIUMF Vancouver BC V6T 2A3 Canada;

    Drexel Univ Dept Phys Philadelphia PA 19104 USA;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

    SUNY Stony Brook Dept Phys &

    Astron Stony Brook NY 11794 USA;

    Inst High Energy Phys Beijing 100039 Peoples R China;

    Univ Alabama Dept Phys &

    Astron Tuscaloosa AL 35487 USA;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    CALTECH Kellogg Lab Pasadena CA 91125 USA;

    Univ Bern Albert Einstein Ctr LHEP Bern Switzerland;

    SLAC Natl Accelerator Lab Menlo Pk CA 94025 USA;

    Univ Illinois Dept Phys 1110 W Green St Urbana IL 61801 USA;

    Colorado State Univ Dept Phys Ft Collins CO 80523 USA;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    Inst High Energy Phys Beijing 100039 Peoples R China;

    Laurentian Univ Dept Phys Sudbury ON P3E 2C6 Canada;

    Drexel Univ Dept Phys Philadelphia PA 19104 USA;

    Waste Isolat Pilot Plant Carlsbad NM 88220 USA;

    Stanford Univ Dept Phys Stanford CA 94305 USA;

    Univ Illinois Dept Phys 1110 W Green St Urbana IL 61801 USA;

    Drexel Univ Dept Phys Philadelphia PA 19104 USA;

    Inst Theoret &

    Expt Phys Moscow 117259 Russia;

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  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
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