COHERENT 2018 at the Spallation Neutron Source
COHERENT 2018 at the Spallation Neutron Source
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发表时间：
2018-03
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通讯作者：
D. Akimov;J. Albert;Peibo An;C. Awe;P. Barbeau;B. Becker;V. Belov;M. Blackston;A. Bolozdynya;A. Brown;A. Burenkov;B. Cabrera-Palmer;M. Cervantes;J. Collar;R. Cooper;R. Cooper;J. Daughhetee;D. Dean;M. D. V. Coello;J. Detwiler;M. D'Onofrio;Y. Efremenko;S. Elliott;E. Erkela;A. Etenko;L. Fabris;M. Febbraro;N. Fields;W. Fox;A. Galindo-Uribarri;M. Green;M. Heath;S. Hedges;E. Iverson;M. Kaemingk;L. Kaufman;S. Klein;A. Khromov;S. Ki;A. Konovalov;A. Kovalenko;A. Kumpan;L. Li;W. Lu;K. Mann;Y. Melikyan;D. Markoff;H. Moreno;P. Mueller;P. Naumov;J. Newby;D. Parno;S. Penttila;G. Perumpilly;D. Radford;R. Rapp;H. Ray;J. Raybern;D. Reyna;G. Rich;D. Rimal;D. Rudik;D. Salvat;K. Scholberg;B. Scholz;G. Sinev;W. Snow;V. Sosnovtsev;A. Shakirov;B. Suh;R. Tayloe;R. Thornton;I. Tolstukhin;J. Vanderwerp;R. Varner;C. Virtue;J. Yoo;C.-H. Yu;J. Zettlemoyer
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作者：
D. Akimov;J. Albert;Peibo An;C. Awe;P. Barbeau;B. Becker;V. Belov;M. Blackston;A. Bolozdynya;A. Brown;A. Burenkov;B. Cabrera-Palmer;M. Cervantes;J. Collar;R. Cooper;R. Cooper;J. Daughhetee;D. Dean;M. D. V. Coello;J. Detwiler;M. D'Onofrio;Y. Efremenko;S. Elliott;E. Erkela;A. Etenko;L. Fabris;M. Febbraro;N. Fields;W. Fox;A. Galindo-Uribarri;M. Green;M. Heath;S. Hedges;E. Iverson;M. Kaemingk;L. Kaufman;S. Klein;A. Khromov;S. Ki;A. Konovalov;A. Kovalenko;A. Kumpan;L. Li;W. Lu;K. Mann;Y. Melikyan;D. Markoff;H. Moreno;P. Mueller;P. Naumov;J. Newby;D. Parno;S. Penttila;G. Perumpilly;D. Radford;R. Rapp;H. Ray;J. Raybern;D. Reyna;G. Rich;D. Rimal;D. Rudik;D. Salvat;K. Scholberg;B. Scholz;G. Sinev;W. Snow;V. Sosnovtsev;A. Shakirov;B. Suh;R. Tayloe;R. Thornton;I. Tolstukhin;J. Vanderwerp;R. Varner;C. Virtue;J. Yoo;C.-H. Yu;J. Zettlemoyer
COHERENT合作的主要目标是使用橡树岭国家实验室（ORNL）的Spinning中子源（SNS）提供的高功率、几十MeV脉冲中微子源测量和研究相干弹性中微子-核散射（CEvNS）。COHERENT合作报告了使用CsI[Na]检测器首次检测到CEvNS [Akimov：2017 ade]。目前，该合作正在部署四种探测器技术：CsI[Na]晶体，p型点接触锗探测器，单相液氩和NaI[Tl]晶体。所有探测器都位于SNS目标建筑物的中子安静地下室，距离SNS中微子源20-30米。在所有四个相干探测器子系统中的同时测量将测试截面的N^2 $依赖性并寻找新的物理学。此外，COHERENT正在测量屏蔽材料中带电和中性电流中微子与原子核相互作用产生的中微子感生中子，这是CEvNS不可忽略的背景，也是固有的兴趣。协作组还计划寻找与超新星和弱相互作用物理学有关的带电电流相互作用。本文件简要介绍了相干物理的动机，灵敏度，并在SNS的测量将在几年的时间尺度上完成的下一个计划。
The primary goal of the COHERENT collaboration is to measure and study coherent elastic neutrino-nucleus scattering (CEvNS) using the high-power, few-tens-of-MeV, pulsed source of neutrinos provided by the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). The COHERENT collaboration reported the first detection of CEvNS [Akimov:2017ade] using a CsI[Na] detector. At present the collaboration is deploying four detector technologies: a CsI[Na] scintillating crystal, p-type point-contact germanium detectors, single-phase liquid argon, and NaI[Tl] crystals. All detectors are located in the neutron-quiet basement of the SNS target building at distances 20-30 m from the SNS neutrino source. The simultaneous measurement in all four COHERENT detector subsystems will test the $N^2$ dependence of the cross section and search for new physics. In addition, COHERENT is measuring neutrino-induced neutrons from charged- and neutral-current neutrino interactions on nuclei in shielding materials, which represent a non-negligible background for CEvNS as well as being of intrinsic interest. The Collaboration is planning as well to look for charged-current interactions of relevance to supernova and weak-interaction physics. This document describes concisely the COHERENT physics motivations, sensitivity, and next plans for measurements at the SNS to be accomplished on a few-year timescale.