Results 51 to 60 of about 1,393 (196)

Dark-photon search using data from CRESST-II Phase 2

European Physical Journal C: Particles and Fields, 2017
Identifying the nature and origin of dark matter is one of the major challenges for modern astro and particle physics. Direct dark-matter searches aim at an observation of dark-matter particles interacting within detectors.
G. Angloher, P. Bauer, A. Bento, C. Bucci, L. Canonica, X. Defay, A. Erb, F. v. Feilitzsch, N. Ferreiro Iachellini, P. Gorla, A. Gütlein, D. Hauff, J. Jochum, M. Kiefer, H. Kluck, H. Kraus, J.-C. Lanfranchi, J. Loebell, M. Mancuso, A. Münster, C. Pagliarone, F. Petricca, W. Potzel, F. Pröbst, R. Puig, F. Reindl, K. Schäffner, J. Schieck, S. Schönert, W. Seidel, L. Stodolsky, C. Strandhagen, R. Strauss, A. Tanzke, H. H. Trinh Thi, C. Türkoǧlu, M. Uffinger, A. Ulrich, I. Usherov, S. Wawoczny, M. Willers, M. Wüstrich, A. Zöller   +42 more
doaj   +1 more source

Investigating the Superorbital Modulations in 4U 1909 + 07, IGR J16418-4532, and IGR J16479-4514 with Swift XRT, BAT, and NuSTAR Observations

The Astrophysical Journal, 2023
A puzzling variety of superorbital modulations has been discovered in several supergiant high mass X-ray binaries (sgHMXBs). To investigate the mechanisms driving these superorbital modulations, we have analyzed long-term Neil Gehrels Swift Observatory ...
Nazma Islam, Robin H. D. Corbet, Joel B. Coley, Katja Pottschmidt, Felix Fuerst   +4 more
doaj   +1 more source

First results from CRESST-II Phase 2

, 2014
The CRESST-II (Cryogenic Rare Event Search with Superconducting Thermometers) experiment, currently in its second phase, aims at the direct detection of WIMPs. Compared to previous runs the intrinsic radiopurity of CaWO$_4$ crystals and the capability to
CRESST Collaboration, Strauss, Raimund
core   +1 more source

Detector development for the CRESST experiment [PDF]

, 2023
Recently low-mass dark matter direct searches have been hindered by a low energy background, drastically reducing the physics reach of the experiments. In the CRESST-III experiment, this signal is characterised by a significant increase of events below ...
Benato, G., Bertolini, A., Jochum, J., Canonica, L., Feilitzsch, F. v., Schaeffner, K., Banik, S., Povinec, P., Kuckuk, S., Hauff, D., Kinast, A., Stahlberg, M., Bucci, C., Stodolsky, L., Usherov, I., Reindl, F., Burkhart, J., Pagliarone, C., Bento, A., Kraus, H., Strauss, R., Mokina, V., Schoenert, S., Breier, R., Fuchs, D., Olmi, M., Di Lorenzo, S., Erb, A., Kaznacheeva, M., Fichtinger, S., Mancuso, M., Langenkaemper, A., Pucci, F., Zema, V., Wagner, F., Gupta, S., Potzel, W., Ortmann, T., Ješkovský, M., Garai, A., Willers, M., D'Addabbo, A., Angloher, G., Petricca, F., Mauri, B., Pattavina, L., Einfalt, L., Proebst, F., Guillaumon, P. V., Schieck, J., Gorla, P., Strandhagen, C., Rothe, J., Marini, L., Meyer, L., Schwertner, C., Kluck, H., Ghete, V. M.   +57 more
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A Sub-GeV Low Mass Hidden Dark Sector of SU(2) H × U(1) X

Journal of High Energy Physics, 2021
We present a detailed study of the non-abelian vector dark matter candidate W t with a MeV–GeV low mass range, accompanied by a dark photon A′ and a dark Z′ of similar masses, in the context of a gauged two-Higgs-doublet model with the hidden gauge group
Raymundo Ramos, Van Que Tran, Tzu-Chiang Yuan   +2 more
doaj   +1 more source

Description of CRESST-II data

, 2017
In Phase 2 of CRESST-II 18 detector modules were operated for about two years (July 2013 - August 2015). Together with this document we are publishing data from two detector modules which have been used for direct dark-matter searches. With these data-sets we were able to set world-leading limits on the cross section for spin-independent elastic ...
Angloher, G., Bauer, P., Bento, A., Bucci, C., Canonica, L., Defay, X., Erb, A., Feilitzsch, F. v., Iachellini, N. Ferreiro, Gorla, P., Gütlein, A., Hauff, D., Jochum, J., Kiefer, M., Kistner, C., Kluck, H., Kraus, H., Lanfranchi, J. -C., Loebell, J., Mancuso, M., Münster, A., Pagliarone, C., Petricca, F., Potzel, W., Pröbst, F., Puig, R., Reindl, F., Roth, S., Rottler, K., Sailer, C., Schäffner, K., Schieck, J., Schmaler, J., Scholl, S., Schönert, S., Seidel, W., Sivers, M. v., Stodolsky, L., Strandhagen, C., Strauss, R., Tanzke, A., Thi, H. H. Trinh, Türkoǧlu, C., Uffinger, M., Ulrich, A., Usherov, I., Wawoczny, S., Willers, M., Wüstrich, M., Zöller, A.   +49 more
openaire   +3 more sources

Improving Formative Assessment Practice with Educational Information Technology [PDF]

Journal of Systemics, Cybernetics and Informatics, 2006
This paper describes a web-based assessment design tool, the ADDS, that provides teachers both a structure and the resources required to develop and use quality assessments. The tool is applicable across subject domains.
Terry Vendlinski, David Niemi, Jia Wang, Sara Monempour   +3 more
doaj  

The X-Ray Evolution of the Symbiotic Star V407 Cyg During its 2010 Outburst

Open Astronomy, 2012
We present a summary of Swift and Suzaku X-ray observations of the 2010 nova outburst of the symbiotic star, V407 Cyg. the Suzaku spectrum obtained on day 30 indicates the presence of the supersoft component from the white dwarf surface, as well as ...
Mukai K., Nelson T., Chomiuk L., Donato D., Sokoloski J.   +4 more
doaj   +1 more source

Status of the CRESST-II Experiment for Direct Dark Matter Search

, 2015
The CRESST-II (Cryogenic Rare Event Search with Superconducting Thermometers) experiment aims for the direct detection of dark matter in form of WIMPs. Scintillating CaWO$_4$ single crystals are used as target material.
Münster, Andrea, CRESST Collaboration
core   +1 more source

Measuring the Soft Excess Region Size Relative to the Corona in Active Galactic Nuclei with NICER

The Astrophysical Journal, 2023
The soft excess is a significant emission component in the soft (
A. Zoghbi, J. M. Miller
doaj   +1 more source