1,900 research outputs found

    Analisis Framing Episode mereka Ramai-ramai Menggugat Kpk pada Program Realitas Metro TV

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    Early 2015 in Indonesia is dominated by the feud between the Corruption Eradication Commission (KPK) and the Indonesian National Police (INP). Realitas is an investigative news program in Metro TV that review more into the news. Realitas review the feud between the KPK and the National Police in the episode "They are busy to sue KPK" that aired on January 27, 2014. Authors interested to know more framing done by Reality related dispute between the Commission and the National Police. The aim of this study was to determine the framing analysis episode "They are busy to sue KPK" on Metro TV program Realitas.This study uses a qualitative method analysis model framing Robert Entman. Data collection techniques used is through observation and documentation. As for the examination of the validity of data researchers used a technique of persistence observation.Results of the study found that Realitas framed the the KPK case as a group or individual efforts to weaken the KPK. The weakening over attacks and reporting to the KPK dignitaries. Weakening efforts has any connection with the determination of Commissioner General Budi Gunawan as a suspect by the KPK. President Joko Widodo urged to mediate in case of dispute the KPK and the National Police. The issue of criminalization of the KPK that appear in this episode so that the people think it is an attempt to criminalize the the KPK dignitaries.Keyword : Analysis Framing, KPK, Polr

    Final results of an experiment to search for 2beta processes in zinc and tungsten with the help of radiopure ZnWO4 crystal scintillators

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    A search for the double beta decay of zinc and tungsten isotopes has been performed with the help of radiopure ZnWO4 crystal scintillators (0.1-0.7 kg) at the Gran Sasso National Laboratories of the INFN. The total exposure of the low background measurements is 0.529 kg yr. New improved half-life limits on the double beta decay modes of 64Zn, 70Zn, 180W, and 186W have been established at the level of 10^{18}-10^{21} yr. In particular, limits on double electron capture and electron capture with positron emission in 64Zn have been set: T_{1/2}(2\nu 2K) > 1.1 10^{19} yr, T_{1/2} (0\nu 2\epsilon) > 3.2 10^{20} yr, T_{1/2} (2\nu \epsilon \beta^+) > 9.4 10^{20} yr, and T_{1/2} (0\nu \epsilon \beta^+) > 8.5 10^{20} yr, all at 90% C.L. Resonant neutrinoless double electron capture in 180W has been restricted on the level of T_{1/2} (0\nu 2\epsilon) > 1.3 10^{18} yr. A new half-life limit on alpha transition of 183W to the metastable excited level 1/2^- 375 keV of 179Hf has been established: T_{1/2} > 6.7 10^{20} yr.Comment: This is an author-created, un-copyedited version of an article published in J. Phys. G: Nucl. Part. Phys. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at doi: 10.1088/0954-3899/38/11/11510

    Improvement of radiopurity level of enriched 116^{116}CdWO4_4 and ZnWO4_4 crystal scintillators by recrystallization

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    As low as possible radioactive contamination of a detector plays a crucial role to improve sensitivity of a double beta decay experiment. The radioactive contamination of a sample of 116^{116}CdWO4_4 crystal scintillator by thorium was reduced by a factor 10\approx 10, down to the level 0.01 mBq/kg (228^{228}Th), by exploiting the recrystallization procedure. The total alpha activity of uranium and thorium daughters was reduced by a factor 3\approx 3, down to 1.6 mBq/kg. No change in the specific activity (the total α\alpha activity and 228^{228}Th) was observed in a sample of ZnWO4_4 crystal produced by recrystallization after removing 0.4\approx 0.4 mm surface layer of the crystal.Comment: 14 pages, 5 figures and 2 table

    Search for double beta decay of 136^{136}Ce and 138^{138}Ce with HPGe gamma detector

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    Search for double β\beta decay of 136^{136}Ce and 138^{138}Ce was realized with 732 g of deeply purified cerium oxide sample measured over 1900 h with the help of an ultra-low background HPGe γ\gamma detector with a volume of 465 cm3^3 at the STELLA facility of the Gran Sasso National Laboratories of the INFN (Italy). New improved half-life limits on double beta processes in the cerium isotopes were set at the level of limT1/210171018\lim T_{1/2}\sim 10^{17}-10^{18}~yr; many of them are even two orders of magnitude larger than the best previous results.Comment: 21 pages, 6 figures, 3 tables; version accepted for publication on Nucl. Phys.

    New limits on 2ε2\varepsilon, εβ+\varepsilon\beta^+ and 2β+2\beta^+ decay of 136^{136}Ce and 138^{138}Ce with deeply purified cerium sample

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    A search for double electron capture (2ε2\varepsilon), electron capture with positron emission (εβ+\varepsilon\beta^+), and double positron emission 2β+2\beta^+) in 136^{136}Ce and 138^{138}Ce was realized with a 465 cm3^3 ultra-low background HP Ge γ\gamma spectrometer over 2299 h at the Gran Sasso underground laboratory. A 627 g sample of cerium oxide deeply purified by liquid-liquid extraction method was used as a source of γ\gamma quanta expected in double β\beta decay of the cerium isotopes. New improved half-life limits were set on different modes and channels of double β\beta decay of 136^{136}Ce and 138^{138}Ce at the level of T1/2>10171018T_{1/2}>10^{17}-10^{18} yr.Comment: 19 pages, 6 figures, 2 table

    The event generator DECAY4 for simulation of double beta processes and decay of radioactive nuclei

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    The computer code DECAY4 is developed to generate initial energy, time and angular distributions of particles emitted in radioactive decays of nuclides and nuclear (atomic) deexcitations. Data for description of nuclear and atomic decay schemes are taken from the ENSDF and EADL database libraries. The examples of use of the DECAY4 code in several underground experiments are described.Comment: 8 pages, 1 fi

    Spin-independent elastic WIMP scattering and the DAMA annual modulation signal

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    We discuss the interpretation of the annual modulation signal seen in the DAMA experiment in terms of spin-independent elastic WIMP scattering. Taking into account channeling in the crystal as well as the spectral signature of the modulation signal we find that the low-mass WIMP region consistent with DAMA data is confined to WIMP masses close to mχ12m_\chi \simeq 12 GeV, in disagreement with the constraints from CDMS and XENON. We conclude that even if channeling is taken into account this interpretation of the DAMA modulation signal is disfavoured. There are no overlap regions in the parameter space at 90% CL and a consistency test gives the probability of 1.2×1051.2\times 10^{-5}. We study the robustness of this result with respect to variations of the WIMP velocity distribution in our galaxy, by changing various parameters of the distribution function, and by using the results of a realistic N-body dark matter simulation. We find that only by making rather extreme assumptions regarding halo properties can we obtain agreement between DAMA and CDMS/XENON.Comment: 21 pages, 12 figures, matches version accepted in JCA

    First search for double-beta decay of 184Os and 192Os

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    A search for double-beta decay of osmium has been realized for the first time with the help of an ultra-low background HPGe gamma detector at the underground Gran Sasso National Laboratories of the INFN (Italy). After 2741 h of data taking with a 173 g ultra-pure osmium sample limits on double-beta processes in 184Os have been established at the level of T_{1/2} about 10^{14}-10^{17} yr. Possible resonant double-electron captures in 184Os were searched for with a sensitivity T_{1/2} about 10^{16} yr. A half-life limit T_{1/2} > 5.3 10^{19} yr was set for the double-beta decay of 192Os to the first excited level of 192Pt. The radiopurity of the osmium sample has been investigated and radionuclides 137Cs, 185Os and 207Bi were detected in the sample, while activities of 40K, 60Co, 226Ra and 232Th were limited at the mBq/kg level.Comment: 12 pages, 7 figures, 2 table

    Search for 2\beta\ decays of 96Ru and 104Ru by ultra-low background HPGe gamma spectrometry at LNGS: final results

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    An experiment to search for double beta decay processes in 96Ru and 104Ru, which are accompanied by gamma rays, has been realized in the underground Gran Sasso National Laboratories of the I.N.F.N. (Italy). Ruthenium samples with masses of about (0.5-0.7) kg were measured with the help of ultra-low background high purity Ge gamma ray spectrometry. After 2162 h of data taking the samples were deeply purified to reduce the internal contamination of 40K. The last part of the data has been accumulated over 5479 h. New improved half life limits on 2\beta+/\epsilon \beta+/2\epsilon\ processes in 96Ru have been established on the level of 10^{20} yr, in particular for decays to the ground state of 96Mo: T1/2(2\nu 2\beta+) > 1.4 10^{20} yr, T1/2(2\nu \epsilon\beta+) > 8.0 10^{19} yr and T1/2(0\nu 2K) > 1.0 10^{21} yr (all limits are at 90% C.L.). The resonant neutrinoless double electron captures to the 2700.2 keV and 2712.7 keV excited states of 96Mo are restricted as: T1/2(0\nu KL) > 2.0 10^{20} yr and T1/2(0\nu 2L) > 3.6 10^{20} yr, respectively. Various two neutrino and neutrinoless 2\beta\ half lives of 96Ru have been estimated in the framework of the QRPA approach. In addition, the T1/2 limit for 0\nu 2\beta- transitions of 104Ru to the first excited state of 104Pd has been set as > 6.5 10^{20} yr.Comment: 14 pages, 5 figures, 2 tables; version accepted for publication on Phys. Rev.
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