864 research outputs found
A determination of the LMC dark matter subhalo mass using the MW halo stars in its gravitational wake
Our goal is to study the gravitational effects caused by the passage of the
Large Magellanic Cloud (LMC) in its orbit on the stellar halo of the Milky Way
(MW). We employed the Gaia Data Release 3 to construct a halo tracers data set
consisting of K-Giant stars and RR-Lyrae variables. Additionally, we have
compared the data with a theoretical model to estimate the DM subhalo mass. We
have improved the characterisation of the local wake and the collective
response due to the LMC orbit. On the other hand, we have estimated for the
first time the dark subhalo mass of the Large Magellanic Cloud, of the order of
M, comparable to previously reported values in the
literature.Comment: submitted to A&
Nuclear response to dark matter signals in Ge and Xe odd-mass targets
Abstract: The interaction of dark matter particles (WIMPs) with the odd-mass
Ge and Xe target nuclei ,{ {that is the recoil rates
corresponding to the elastic scattering of WIMPs by these nuclei}}, is analysed
in the context of the minimal extensions of the SUSY model. The BCS+QRPA
technique plus the quasiparticle-phonon coupling scheme is used to describe the
nuclear structure part of the calculations. The resulting values for the
nuclear spin content of both nuclei are compared to values previously reported
in the literature
Nonstructural Carbohydrate Reserves of Temperate Perennial Grasses in Autumn Early Growth
The objective of this study was to determine levels of nonstructural carbohydrate reserves of four temperate perennial grasses: Orchardgrass (Dactylis glomerata L.), Timothy (Phleum pratense L.), Perennial ryegrass (Lolium perenne L.), and Reed canarygrass (Phalaris arundinacea L.) in their early growth stages during the cool autumn temperatures in northern Japan. At the time of sampling, all grasses were in their vegetative stage, and Reed canarygrass was not forming rhizomes. Fructosan concentration in reed canarygrass roots (8.04%) was 22 times that of the leaf blade (0.36%) and twice that of the stem (3.40%); the concentration in reed canarygrass root was the highest of the four grasses. Timothy stored fructosan in the root at a significantly higher concentration (1.65%) than did the orchardgrass (0.58%) and perennial ryegrass (0.83%). The concentration of fructosan in the timothy was the highest in the stem, the lowest in the leaf blade and intermediate in the root. On the other hand, orchardgrass and perennial ryegrass stored the highest amount of fructosan in the stem, the lowest amount in the root, and an intermediate amount in the leaf blade. In addition, the root dry weight and the ratio of the root dry weight to the total dry weight were significantly higher in reed canarygrass than in the other three grasses. Timothy was in second place surpassing orchardgrass and perennial ryegrass. We considered that winter survival is the highest in reed canarygrass and second highest in timothy over orchard grass and perennial ryegrass
UC-316 Recipe For Disaster
Sugar, Spice, and everything nice or naughty, using the ingredients available to you, you must battle your way out of the bizarre world of chefs and cooks as they attempt to flambe and tenderize you. Whisk, Boil, and Cook your way out of the endless kitchen to secure your way as a true MasterChe
The performance of thin NaI(Tl) scintillator plate for dark matter search
A thin (0.05cm) and wide area (5cmX5cm) NaI(Tl) scintillator was developed.
The performance of the thin NaI(Tl) plate, energy resolution, single
photoelectron energy and position sensitivity were tested. An excellent energy
resolution of 20% (FWHM) at 60keV was obtained. The single photoelectron energy
was calculated to be approximately 0.42 0.02keV. Position information in the
5cmx5cm area of the detector was also obtained by analyzing the ratio of the
number of photons collected at opposite ends of the detector. The position
resolution was obtained to be 1cm (FWHM) in the 5cmx5cm area.Comment: 10 pages. Accepted to Journal of Physical Society of Japa
Light Neutralinos as Dark Matter in the Unconstrained Minimal Supersymmetric Standard Model
The allowed parameter space for the lightest neutralino as the dark matter is
explored using the Minimal Supersymmetric Standard Model as the low-energy
effective theory without further theoretical constraints such as GUT. Selecting
values of the parameters which are in agreement with present experimental
limits and applying the additional requirement that the lightest neutralino be
in a cosmologically interesting range, we give limits on the neutralino mass
and composition. A similar analysis is also performed implementing the grand
unification constraints. The elastic scattering cross section of the selected
neutralinos on Al and on other materials for dark matter experiments is
discussed.Comment: Submitted to Astroparticle Physics, 19 Feb. 96, Latex 23 pages with
24 figures in a gzip compressed file FIGURE.PS.GZ available via anonymous ftp
from ftp://iws104.mppmu.mpg.de/pub/gabutt
UC-277 Cosmic Cookoff
A cooking rogue-like game where you cook the weapons you fight with
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