171. Constraints on the Galactic Dark Matter signal from the Fermi-LAT measurement of the diffuse gamma-ray emissionGabrijela Zaharijas, 2012, objavljeni znanstveni prispevek na konferenci Opis: We study diffuse gamma-ray emission at intermediate Galactic latitudes measured by the Fermi Large Area Telescope with the aim of searching for a signal from dark matter annihilation or decay. In the absence of a robust dark matter signal, constraints are presented. We set both, conservative dark matter limits requiring that the dark matter signal does not exceed the observed diffuse gamma-ray emission and limits derived based on modeling the foreground astrophysical diffuse emission. Uncertainties in several parameters which characterize conventional astrophysical emission are taken into account using a profile likelihood formalism. The resulting limits impact the range of particle masses over which dark matter thermal production in the early Universe is possible, and challenge the interpretation of the PAMELA/Fermi-LAT cosmic ray anomalies as annihilation of dark matter.
Ključne besede: gamma rays, Galactic diffuse emission, dark matter serach
Objavljeno v RUNG: 03.05.2016; Ogledov: 5060; Prenosov: 0
Gradivo ima več datotek! Več... |
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174. FlashCam: a fully-digital camera for the medium-sized telescopes of the Cherenkov Telescope ArrayG. Pühlhofer, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), medium-sized telescopes (MST), imaging camera, FlashCam fully-digital readout system
Objavljeno v RUNG: 24.03.2016; Ogledov: 5061; Prenosov: 233
 Celotno besedilo (1,78 MB) |
175. NectarCAM : a camera for the medium size telescopes of the Cherenkov Telescope ArrayJ-F. Glicenstein, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), medium-sized telescopes (MST), imaging camera, NectarCAM design, NECTAr ASIC, Switched Capacitor Array
Objavljeno v RUNG: 24.03.2016; Ogledov: 5352; Prenosov: 239
Celotno besedilo (4,86 MB) |
176. Development of the photomultiplier tube readout system for the first Large-Sized Telescope of the Cherenkov Telescope ArrayShu Masuda, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, 2015, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), Large-Sized Telescope (LST), imaging camera, readout system
Objavljeno v RUNG: 24.03.2016; Ogledov: 5331; Prenosov: 354
Celotno besedilo (927,35 KB) |
177. Asymmetric WIMP Dark Matter in the presence of DM/anti-DM OscillationsGabrijela Zaharijas, 2012, objavljeni povzetek znanstvenega prispevka na konferenci Opis: The class of ‘Asymmetric Dark Matter’ scenarios relies on the existence of a primordial
particle/anti-particle asymmetry in the dark sector related to the baryon asymmetry as a
way to address the observed similarity between the baryonic and dark matter energy densities
today. Focusing on this framework we calculate the evolution of the dark matter relic
abundance in the presence of particle/anti-particle oscillations. We show how oscillations reopen
the parameter space of asymmetric dark matter models, in particular in the direction of
allowing large (WIMP-scale) DM masses. Finally, we constrain the parameter space in this
framework by applying up-to-date bounds from indirect detection signals on annihilating DM.
Ključne besede: dark matter, early universe
Objavljeno v RUNG: 23.03.2016; Ogledov: 5293; Prenosov: 0
Gradivo ima več datotek! Več... |
178. Development of Slow Control Boards for the Large Size Telescopes of the Cherenkov Telescope ArrayDaniela Hadasch, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), Large Size Telescopes (LST), imaging camera, slow control board (SCB)
Objavljeno v RUNG: 21.03.2016; Ogledov: 4994; Prenosov: 240
Celotno besedilo (4,05 MB) |
179. The Optical System for the Large Size Telescope of the Cherenkov Telescope ArrayM. Hayashida, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), Large Size Telescopes (LST), optical system, active mirror control system
Objavljeno v RUNG: 21.03.2016; Ogledov: 5086; Prenosov: 269
Celotno besedilo (1,10 MB) |
180. Prototyping of Hexagonal Light Concentrators for the Large-Sized Telescopes of the Cherenkov Telescope ArrayAkira Okumura, Andrej Filipčič, Gašper Kukec Mezek, Samo Stanič, Serguei Vorobiov, Lili Yang, Gabrijela Zaharijas, Danilo Zavrtanik, Marko Zavrtanik, objavljeni znanstveni prispevek na konferenci Ključne besede: Cherenkov Telescope Array (CTA), Large-Sized Telescopes (LST), imaging camera, focal plane light concentrators
Objavljeno v RUNG: 21.03.2016; Ogledov: 4949; Prenosov: 212
Celotno besedilo (1,51 MB) |
