Search results for "Peri"
showing 10 items of 45470 documents
XENON1T Dark Matter Data Analysis: Signal Reconstruction, Calibration and Event Selection
2019
The XENON1T experiment at the Laboratori Nazionali del Gran Sasso is the most sensitive direct detection experiment for dark matter in the form of weakly interacting particles (WIMPs) with masses above $6\,$GeV/$c^2$ scattering off nuclei. The detector employs a dual-phase time projection chamber with 2.0 metric tons of liquid xenon in the target. A one metric $\mathrm{ton}\times\mathrm{year}$ exposure of science data was collected between October 2016 and February 2018. This article reports on the performance of the detector during this period and describes details of the data analysis that led to the most stringent exclusion limits on various WIMP-nucleon interaction models to date. In pa…
Excess electronic recoil events in XENON1T
2020
We report results from searches for new physics with low-energy electronic recoil data recorded with the XENON1T detector. With an exposure of 0.65 t-y and an unprecedentedly low background rate of $76\pm2$ events/(t y keV) between 1 and 30 keV, the data enables sensitive searches for solar axions, an enhanced neutrino magnetic moment, and bosonic dark matter. An excess over known backgrounds is observed at low energies and most prominent between 2 and 3 keV. The solar axion model has a 3.4$\sigma$ significance, and a 3D 90% confidence surface is reported for axion couplings to electrons, photons, and nucleons. This surface is inscribed in the cuboid defined by $g_{ae}<3.8 \times 10^{-12}$,…
The science case of the FRS Ion Catcher for FAIR Phase-0
2019
The FRS Ion Catcher at GSI enables precision experiments with thermalized projectile and fission fragments. At the same time it serves as a test facility for the Low-Energy Branch of the Super-FRS at FAIR. The FRS Ion Catcher has been commissioned and its performance has been characterized in five experiments with 238U and 124Xe projectile and fission fragments produced at energies in the range from 300 to 1000 MeV/u. High and almost element-independent efficiencies for the thermalization of short-lived nuclides produced at relativistic energies have been obtained. High-accuracy mass measurements of more than 30 projectile and fission fragments have been performed with a multiple-reflection…
Production cross section and decay study of $^{243}$Es and $^{249}$Md
2019
In the study of the odd-$Z$, even-$N$ nuclei $^{243}$Es and $^{249}$Md, performed at the University of Jyv\"askyl\"a, the fusion-evaporation reactions $^{197}$Au($^{48}$Ca,2$n$)$^{243}$Es and $^{203}$Tl($^{48}$Ca,2$n$)$^{249}$Md have been used for the first time. Fusion-evaporation residues were selected and detected using the RITU gas-filled separator coupled with the focal-plane spectrometer GREAT. For $^{243}$Es, the recoil decay correlation analysis yielded a half-life of $24 \pm 3$s, and a maximum production cross section of $37 \pm 10$ nb. In the same way, a half-life of $26 \pm 1$ s, an $\alpha$ branching ratio of 75 $\pm$ 5%, and a maximum production cross section of 300 $\pm$ 80 nb…
Study of non-fusion products in the 50Ti + 249Cf reaction
2018
Physics letters / B B 784, 199 - 205 (2018). doi:10.1016/j.physletb.2018.07.058
Pyhäpäivien vietto varhaismodernin ajan Savossa (vuoteen 1710)
2016
In this dissertation, I study the observance of holy days among the peasantry in the early modern province of Savo, located on the eastern periphery of the Swedish kingdom (today Eastern Finland). I examine the practices, norms and meanings related to the observance of holy days both within and outside the Church, and analyse the changes and continuities in the post-reformation period. As the main sources of the study, I use district court records and visitation records mainly from the period 1639–1712. I analyse the cases with a micro-historical perspective and an anthropological approach. The lived religion of the peasantry was constituted especially through practices that were connected …
Pyhäpäivien vietto varhaismodernin ajan Savossa (vuoteen 1710). Lectio praecursoria 29.4.2016.
2016
FM Miia Kuhan Suomen historian väitöskirja Pyhäpäivien vietto varhaismodernin ajan Savossa (vuoteen 1710) tarkastettiin 29.4.2016 Jyväskylän yliopistossa. Vastaväittäjänä toimi dosentti Raisa Maria Toivo Tampereen yliopistosta ja kustoksena professori Kustaa H. J. Vilkuna Jyväskylän yliopistosta.
Opinteitä ikääntyvien yliopistoon : sotien sukupolvi ja yliopiston ylistys
2014
Ekonometrinen malli Ison-Britannian ja Saksan sanomalehti- ja paino- ja kirjoituspaperin kulutukselle vuosina 1960-1994
1997
Puuttuvuuden mallintaminen FINRISKI-tutkimuksessa
2017
Puuttuva tieto on ongelma terveystutkimuksissa, koska tutkimukseen osallistujat ja ei-osallistujat usein eroavat toisistaan. Puuttuvuuden mallintaminen on tärkeää, jotta tuloksia pystyttäisiin korjaamaan ja jatkossa ottamaan mallinnettu puuttuvuus paremmin huomioon tutkimusta suunnitellessa. Myös Kansallinen FINRISKI-tutkimus kärsii puuttuvuudesta, sillä tutkimuksen osallistumisprosentti on laskenut jatkuvasti. Tutkimus on Terveyden ja hyvinvoinnin laitoksen väestötutkimussarja, jonka tavoitteena on seurata kansantauteja ja niiden riskitekijöitä Suomessa sekä tarkkailla suomalaisten terveydentilaa. Tässä työssä pyritään mallintamaan Kansallisen FINRISKI-tutkimuksen puuttuvuus tarkastelemall…