Showing papers in "Astroparticle Physics in 2017"
TL;DR: The DArk Matter Particle Explorer (DAMPE) as mentioned in this paper, one of the four scientific space science missions within the framework of the Strategic Pioneer Program on Space Science of the Chinese Academy of Sciences, was successfully launched on December 17th, 2015 from the Jiuquan Satellite Launch Center.
237 citations
TL;DR: In this article, a real-time analysis framework for the IceCube neutrino observatory has been implemented, aiming for the identification of an electromagnetic counterpart of a rapidly fading source, and the first realtime analyses to be activated within this framework, highlights their sensitivities to astrophysical neutrinos and background event rates, and presents an outlook for future discoveries.
145 citations
TL;DR: The ARIANNA hexagonal radio array (HRA) is an experiment in its pilot phase designed to detect cosmogenic neutrinos of energies above 1016 eV.
115 citations
Indiana University1, Queen's University2, Saha Institute of Nuclear Physics3, Chalk River Laboratories4, Université de Montréal5, Laurentian University6, University of Alberta7, Sterling College8, University of California, Berkeley9, Czech Technical University in Prague10, Tata Institute of Fundamental Research11
TL;DR: The PICASSO dark matter search experiment operated an array of 32 superheated droplet detectors containing 3.0 kg of C 4 F 10 and collected an exposure of 231.4 kgd at SNOLAB between March 2012 and January 2014 as discussed by the authors.
103 citations
TL;DR: In this article, the authors present results from a 54.7 live-day shielded run of the DRIFT-IId detector, the world's most sensitive, directional, dark matter detector, and demonstrate that the observed nuclear recoil rate of 0.31 ± 0.08 events per day is consistent with detection of ambient, fast neutrons emanating from the walls of the Boulby Underground Science Facility.
66 citations
TL;DR: In this paper, the performance of MAGIC was evaluated under different background light levels, based on Crab Nebula observations and tuned Monte Carlo simulations, including observations taken under non-standard hardware configurations, such as reducing the camera photomultiplier tubes gain by a factor of 1.7 (reduced HV settings) with respect to standard settings (nominal HV).
63 citations
TL;DR: The Plastic Scintillator Detector (PSDAMPE) as mentioned in this paper plays an important role in particle charge measurement and the photons/electrons discrimination and can identify the atomic number Z/charge states of relativistic ions from H to Fe.
61 citations
TL;DR: In this paper, the evolution of the muon content of very high energy air showers (EAS) in the atmosphere is investigated with data of the KASCADE-Grande observatory.
55 citations
TL;DR: In this paper, the use of boosted decision trees for γ/hadron separation was applied to data from the Very Energetic Radiation Imaging Telescope Array System (VERITAS) and demonstrated an improved sensitivity compared to the VERITAS standard analysis.
51 citations
Japan Aerospace Exploration Agency1, Waseda University2, Goddard Space Flight Center3, Universities Space Research Association4, National Research Council5, University of Florence6, University of Tokyo7, University of Siena8, Washington University in St. Louis9, Louisiana State University10, University of Padua11, University of Rome Tor Vergata12, University of Maryland, Baltimore County13, St. Marianna University School of Medicine14, Kanagawa University15, Hirosaki University16, Kyoto University17, National Institute of Polar Research18, Yokohama National University19, Shinshu University20, Aoyama Gakuin University21, National Institute of Radiological Sciences22, University of Pisa23, Saitama University24, University of Maryland, College Park25, Ritsumeikan University26, University of Denver27, Nihon University28, Osaka City University29, Nagoya University30, Ibaraki University31, Shibaura Institute of Technology32
TL;DR: In this paper, the conversion factors between ADC units and energy deposits were calculated to ensure linearity over each gain range, and providing a seamless transition between neighboring gain ranges, and a sufficient accuracy was achieved for the calibration of each channel in order to obtain a suitable resolution over the entire dynamic range of the electron spectrum measurement.
49 citations
TL;DR: In this article, the authors analyzed the data of the EAS-MSU array on Eμ ≳ 10.GeV muons in showers caused by ∼ ( 10 17 − 10 18 ) ǫ eV primary particles and demonstrate that they agree with simulations (QGSJET-II-04 hadronic interaction model) once the primary composition inferred from the surface-detector data is assumed.
TL;DR: The Cherenkov Telescope Array (CTA) represents the next generation of ground-based instruments for very-high-energy (VHE) gamma-ray astronomy, aimed at improving on the sensitivity of current generation experiments by an order of magnitude and providing coverage over four decades of energy as discussed by the authors.
TL;DR: In this article, the authors developed a cryogenic phonon-scintillation detector to search for 0 νββ decay of 100 Mo using a proto-type setup of the AMoRE experiment.
TL;DR: The LUX-ZEPLIN (LZ) experiment will search for dark matter particle interactions with a detector containing a total of 10 tonnes of liquid xenon within a double-vessel cryostat as mentioned in this paper.
TL;DR: In this paper, direct experimental cross-section data on 2H(α,γ)6Li in the BBN energy range are reported, at E c m = 80, 93, 120, and 133 kV.
TL;DR: In this article, the cosmological measurements of both the expansion history and growth history have matured, and the two together provide an important test of general relativity, and their joint evolutionary track has been considered in distinguishing cosmologies relative to considering them individually or at isolated redshifts.
University of Utah1, Saitama University2, Tokyo Institute of Technology3, Hanyang University4, Tokyo University of Science5, Kindai University6, University of Tokyo7, Osaka City University8, Shinshu University9, Kanagawa University10, University of Yamanashi11, Tokyo City University12, Waseda University13, Chiba University14, Yonsei University15, Kōchi University16, Ritsumeikan University17, Sungkyunkwan University18, Université libre de Bruxelles19, Ulsan National Institute of Science and Technology20, Rutgers University21, Hiroshima City University22, National Institute of Radiological Sciences23, National Institute of Chemical Physics and Biophysics24, Ewha Womans University25, Ehime University26
TL;DR: In this article, the authors used the data of the Telescope Array surface detector in the energy range 1018.0 to 101 8.5 eV to study the origin of galactic cosmic rays and found that the fraction of EeV cosmic rays of galactic origin at 1.3% at 95% confidence level.
Lawrence Berkeley National Laboratory1, Pacific Northwest National Laboratory2, Oak Ridge National Laboratory3, University of South Carolina4, Kurchatov Institute5, Joint Institute for Nuclear Research6, Durham University7, Duke University8, University of Washington9, University of South Dakota10, South Dakota School of Mines and Technology11, Los Alamos National Laboratory12, University of Tennessee13, Osaka University14, University of North Carolina at Chapel Hill15, North Carolina State University16, Black Hills State University17, Tennessee Technological University18, Queen's University19, University of California, Berkeley20
TL;DR: In this article, the first measurement of the total muon flux underground at the Davis Campus of the Sanford Underground Research Facility at the 4850 ft level was performed using the Majorana Demonstrator muon veto system arranged in two different configurations.
TL;DR: In this paper, a multi-wavelength data set of the radio galaxy IC310 in the context of homogeneous hadronic and leptonic models was analyzed and the authors showed that the minimum Lorentz factor of second electron population is exceedingly high γe ∼ 105 disfavoring this model, and in the hadronic model the required proton luminosity is not extremely high ∼1044 erg/s, provided that charge neutrality between the number of electrons and protons is given.
TL;DR: In this paper, the authors evaluate the prospects for detecting neutrino emission from sources in the Galactic plane assuming that the highest energy photons originate from the decay of pions, and derive constraints on the spectral index and cut-off energy of the sources, assuming a hadronic acceleration mechanism.
TL;DR: In this paper, the authors showed that an inappropriate definition of the azimuthal angle, φ, used to reference the orientation of the final state degrades the precision of the measurement of P, by comparison to the optimal case where the bisector angle of the electron and of the positron momenta is used.
TL;DR: Wei et al. as discussed by the authors examined the statistical significance of the evidence for a transition to negative time lags in the spectral lag data of GRB 160625B and found that such a transition cannot be due to an energy dependent speed of light as this would contradict previous limits by some 3-4 orders of magnitude.
TL;DR: In this paper, a measurement of the cosmogenic activation in the germanium cryogenic detectors of the EDELWEISS III direct dark matter search experiment is presented, where the decay rates measured in detectors with different exposures to cosmic rays above ground are converted into production rates of different isotopes.
TL;DR: Using Hamilton-Jacobi formalism, the scenario of warm inflation with viscous pressure is considered in this article, and the results show that the model could properly predict the perturbation parameters in which they stay in perfect agreement with Planck data.
TL;DR: In this article, the authors report a comprehensive study of cosmogenic activation of germanium used for tonne-scale rare event search experiments, and they find that fast neutron induced interactions dominate the production rate.
Technische Universität München1, Kurchatov Institute2, Princeton University3, University of Hamburg4, Virginia Tech5, Moscow State University6, University of Hawaii7, Petersburg Nuclear Physics Institute8, Joint Institute for Nuclear Research9, Paris Diderot University10, University of Houston11, Jagiellonian University12, Dresden University of Technology13, University of Mainz14, University of Ferrara15, University of Massachusetts Amherst16, University of California, Los Angeles17
TL;DR: In this article, the authors present the evidence for the seasonal modulation of the 7 Be neutrino interaction rate with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy.
TL;DR: In this paper, the authors presented the estimates of the NaI(Tl) scintillation light collected using full absorbing peaks at very low energy from external and internal sources emitting gammas/electrons, and single-photoelectron events populations selected by using low energy pulses tails.
TL;DR: In this article, the authors used the coherent elastic neutrino-nucleus scattering (CEvNS) process to detect galactic supernova via the CEvNS-process on xenon nuclei in the current XMASS detector.
TL;DR: In this article, a simulation framework based on GEANT4 has been established to pin down the key features of the soft component of the cosmic muon signal, and the electron and positron flux shows a remarkable invariance against various model parameters including the muon emission altitude or primary particle energy distribution.
McGill University1, University of Washington2, Harvard University3, University of California, Berkeley4, University College Dublin5, Iowa State University6, Adler Planetarium7, National University of Ireland, Galway8, Purdue University9, Tsinghua University10, Pennsylvania State University11, University of Minnesota12, California State University13, University of Delaware14, Columbia University15, University of Iowa16, University of Utah17, DePauw University18, Georgia Institute of Technology19, University of Chicago20, University of Potsdam21, Cork Institute of Technology22
TL;DR: In this article, the authors used photomultiplier tube (PMT) cameras with ultra-violet (UV) bandpass filters to obtain observations at up to about 30 times previous NSB levels (around 80% Moon illumination), resulting in 30% more observing time between the two modes over the course of a year.