Limits on Spin-Independent Couplings of WIMP Dark Matter with a p-Type Point-Contact Germanium Detector

Download

index.pdf

Date

2013-06-25

Author

Li, H. B.
Liao, H. Y.
Lin, S. T.
Liu, S. K.
Singh, L.
Singh, M. K.
Soma, A. K.
Wong, H. T.
Wu, Y. C.
Zhao, W.
Asryan, G.
Chuang, Y. C.
DENİZ, MUHAMMED
Fang, J. M.
Hsu, C. L.
Huang, T. R.
Kumar, G. Kiran
Lee, S. C.
Li, J.
Li, J. M.
Li, Y. J.
Li, Y. L.
Lin, C. W.
Lin, F. K.
Liu, Y. F.
Ma, H.
Ruan, X. C.
Shen, Y. T.
Singh, V.
Tang, C. J.
Tseng, C. H.
Xu, Y.
Yang, S. W.
Yu, C. X.
Yue, Q.
Zeng, Z.
Zeyrek, Mehmet Tevfik
Zhou, Z. Y.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

221
views

86
downloads

We report new limits on a spin-independent weakly interacting massive particle (WIMP)-nucleon interaction cross section using 39.5 kg days of data taken with a p-type point-contact germanium detector of 840 g fiducial mass at the Kuo-Sheng Reactor Neutrino Laboratory. Crucial to this study is the understanding of the selection procedures and, in particular, the bulk-surface events differentiation at the sub-keV range. The signal-retaining and background-rejecting efficiencies were measured with calibration gamma sources and a novel n-type point-contact germanium detector. Part of the parameter space in the cross section versus WIMP-mass implied by various experiments is probed and excluded.

Subject Keywords

General Physics and Astronomy

URI

https://hdl.handle.net/11511/48951

Journal

PHYSICAL REVIEW LETTERS

DOI

https://doi.org/10.1103/physrevlett.110.261301

Collections

Department of Physics, Article

Suggestions

OpenMETU
Core

Properties of Neon, Magnesium, and Silicon Primary Cosmic Rays Results from the Alpha Magnetic Spectrometer Aguilar, M.; et. al. (American Physical Society (APS), 2020-05-29) We report the observation of new properties of primary cosmic rays, neon (Ne), magnesium (Mg), and silicon (Si), measured in the rigidity range 2.15 GV to 3.0 TV with 1.8 x 10(6) Ne, 2.2 x 10(6) Mg, and 1.6 x 10(6) Si nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. The Ne and Mg spectra have identical rigidity dependence above 3.65 GV. The three spectra have identical rigidity dependence above 86.5 GV, deviate from a single power law above 200 GV, and harde...
Measurement of the Top Quark Pair Production Cross Section in Proton-Proton Collisions at root s=13 TeV Khachatryan, V.; et. al. (American Physical Society (APS), 2016-02-01) The top quark pair production cross section is measured for the first time in proton-proton collisions at root s = 13 TeV by the CMS experiment at the CERN LHC, using data corresponding to an integrated luminosity of 43 pb(-1). The measurement is performed by analyzing events with at least one electron and one muon of opposite charge, and at least two jets. The measured cross section is 746 +/- 58(stat) +/- 53(syst) +/- 36(lumi) pb, in agreement with the expectation from the standard model.
Study of B Meson Production in p plus Pb Collisions at root s(NN)=5.02 TeV Using Exclusive Hadronic Decays Khachatryan, V.; et. al. (American Physical Society (APS), 2016-01-01) The production cross sections of the B+, B-0, and B-s(0) mesons, and of their charge conjugates, are measured via exclusive hadronic decays in p + Pb collisions at the center-of-mass energy root s(NN) = 5.02 TeV with the CMS detector at the CERN LHC. The data set used for this analysis corresponds to an integrated luminosity of 34.6 nb(-1). The production cross sections are measured in the transverse momentum range between 10 and 60 GeV/c. No significant modification is observed compared to proton-proton pe...
Measurement of hard double-parton interactions in W(-> lv) plus 2-jet events at root s=7 TeV with the ATLAS detector Aad, G.; et. al. (IOP Publishing, 2013-03-25) The production of W bosons in association with two jets in proton-proton collisions at a centre-of-mass energy of root s = 7 TeV has been analysed for the presence of double-parton interactions using data corresponding to an integrated luminosity of 36 pb(-1), collected with the ATLAS detector at the Large Hadron Collider. The fraction of events arising from double-parton interactions, f(DP)((D)), has been measured through the p(T) balance between the two jets and amounts to f(DP)((D)) = 0.08 +/- 0.01 (stat...
Observation of Top Quark Production in Proton-Nucleus Collisions Sirunyan, A. M.; et. al. (American Physical Society (APS), 2017-12-01) The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of root(S)(NN) = 8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb(-1). The significance of the tt signal against the background-only hypothesis is above 5 standard d...

Citation Formats

H. B. Li et al., “Limits on Spin-Independent Couplings of WIMP Dark Matter with a p-Type Point-Contact Germanium Detector,” PHYSICAL REVIEW LETTERS, pp. 0–0, 2013, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48951.