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The M\"ossbauer spectroscopy is presented as an alternative experimental technique to be pursued in the detec-tion of Coherent Elastic{\nu}-Nucleus Scattering (CENNS). The neutrino transferred energy in the neutrino-nucleusinteraction…

高能物理 - 唯象学 · 物理学 2020-10-23 C Marques , G S Dias , H S Chavez , S B Duarte

Detection of low-energy nuclear recoil events plays a central role in searches for particle dark matter interactions with atomic matter and studies of coherent neutrino scatters. Precise nuclear recoil calibration data allow the responses…

仪器与探测器 · 物理学 2023-11-07 Jingke Xu , P. S. Barbeau , Ziqing Hong

We study the sensitivity of detectors with directional sensitivity to coherent elastic neutrino-nucleus scattering (CE$\nu$NS), and how these detectors complement measurements of the nuclear recoil energy. We consider stopped pion and…

高能物理 - 唯象学 · 物理学 2020-07-22 M. Abdullah , D. Aristizabal Sierra , Bhaskar Dutta , Louis E. Strigari

A study on cosmogenic activation in germanium was carried out to evaluate the cosmogenic background level of natural and $^{70}$Ge depleted germanium detectors. The production rates of long-lived radionuclides were calculated with Geant4…

仪器与探测器 · 物理学 2018-10-23 J. L. Ma , Q. Yue , S. T. Lin , H. T. Wong , J. W. Hu , L. P. Jia , H. Jiang , J. Li , S. K. Liu , Z. Z. Liu , H. Ma , W. Y. Tang , Y. Tian , L. Wang , Q. Wang , L. T. Yang , Z. Zeng

A new type of radiation detector, a p-type modified electrode germanium diode, is presented. The prototype displays, for the first time, a combination of features (mass, energy threshold and background expectation) required for a…

核实验 · 物理学 2011-05-12 P. S. Barbeau , J. I. Collar , O. Tench

Directional detection of nuclear recoils is broadly desirable in nuclear and particle physics. At low recoil energies, this capability may be used to confirm the cosmological origin of a dark matter signal, to penetrate the so-called…

仪器与探测器 · 物理学 2021-10-13 Majd Ghrear , Sven E. Vahsen , Cosmin Deaconu

Optical properties of multilayer semi-conductor nano-emitters are crucially dependent on the relative energy levelsof their different components. For core/shell quantum dots, the relative energy difference between conduction bandedge of…

We have developed a detector, consisting of a cryogenic calorimeter with a scintillating crystal as absorber, and a second calorimeter for the detection of the scintillation light, both operated at 12 mK. Using a CaWO4 crystal with a mass…

仪器与探测器 · 物理学 2009-10-31 P. Meunier , M. Bravin , M. Bruckmayer , S. Giordano , M. Loidl , O. Meier , F. Proebst , W. Seidel , M. Sisti , L. Stodolsky , S. Uchaikin , L. Zerle

Cosmogenic nuclides inside germanium detectors contribute background noise spectra quite different from ordinary external sources. We propose and discuss a nuclide decay and level transition model based on graph theory to understand the…

仪器与探测器 · 物理学 2015-06-18 Jian Su , Zhi Zeng , Hao Ma , Qian Yue , Jianping Cheng , Jin Li

Light fermionic/scalar dark matter (DM) (m_DM ~ 8 GeV) neutral under the standard model can be responsible for the CDMS and CoGeNT signals, and the Fermi-LAT gamma-ray excesses. In order to explain them in a relatively simple framework, we…

高能物理 - 唯象学 · 物理学 2015-06-17 Bumseok Kyae , Jong-Chul Park

We report the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) on natural germanium, measured at the Spallation Neutron Source at Oak Ridge National Laboratory. The Ge-Mini detector of the COHERENT collaboration…

The usual nuclear recoil energy reconstruction employed by liquid xenon dark matter search experiments relies only on the primary scintillation photon signal. Energy reconstruction based on both the photon and electron signals yields a more…

宇宙学与河外天体物理 · 物理学 2012-11-13 Peter Sorensen

The bright scintillation of pure CsI operated at liquid-nitrogen temperature makes of this material a promising dark matter and neutrino detector. We present the first measurement of its quenching factor for nuclear recoils. Our findings…

仪器与探测器 · 物理学 2021-07-21 C. M. Lewis , J. I. Collar

Recent developments on the understanding of low energy reactions are highlighted. Emphasis is given to the CDCC framework where the breakup channels of the projectile are included explicitly. Properties of the breakup couplings are…

核理论 · 物理学 2009-11-11 F. M. Nunes , N. C. Summers , A. M. Moro , A. M. Mukhamedzhanov

SuperCDMS is the next phase of the Cryogenic Dark Matter Search experiment, which measures both phonon and charge signals generated by particle recoils within a germanium target mass. Charge signals are employed both in the definition of a…

仪器与探测器 · 物理学 2019-08-13 S. A. Hertel , M. Pyle

Ultra-low-background experiments address some of the most important open questions in particle physics, cosmology and astrophysics: the nature of dark matter, whether the neutrino is its own antiparticle, and does the proton decay. These…

仪器与探测器 · 物理学 2018-03-14 J. Cooley , K. J. Palladino , H. Qiu , M. Selvi , S. Scorza , C. Zhang

We show that the energy threshold for nuclear recoils in the XENON10 dark matter search data can be lowered to ~1 keV, by using only the ionization signal. In other words, we make no requirement that a valid event contain a primary…

The status and plans of a research program on the development of ultra-low-energy germanium detectors with sub-keV sensitivities are reported. We survey the scientific goals which include the observation of neutrino-nucleus coherent…

高能物理 - 实验 · 物理学 2008-11-26 Henry T. Wong

Germanium detectors have very good capabilities for the investigation of rare phenomena like the neutrinoless double beta decay. Rejection of the background entangling the expected signal is one primary goal in this kind of experiments.…

核实验 · 物理学 2008-11-26 H. Gómez , S. Cebrián , J. Morales , J. A. Villar

Savage et al. have recently put forward the claim that results from the XENON10 experiment are incompatible with the totality of both DAMA/LIBRA and CoGeNT experimental regions. In this brief note the source of this erroneous conclusion is…

宇宙学与河外天体物理 · 物理学 2010-06-11 J. I. Collar