Search for dissertations about: "direct detection"

Showing result 1 - 5 of 347 swedish dissertations containing the words direct detection.

  2. 1. Unveiling the nature of dark matter with direct detection experiments

    Author : Vanessa Zema; Chalmers University of Technology; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; annual-modulation; dark-matter; polarised-nuclei; phonons; COSINUS; cryogenics; NaI; phenomenology; CRESST; direct-detection;

    Abstract : The desire of discovery is an anthropic need which characterises and connects the human being over the eras. In particular, observing the sky is an instinctive drive exerted by the curiosity of the mysteries which it retains. READ MORE

  4. 2. Enhancing Direct Searches for Dark Matter : Spatial-Temporal Modeling and Explicit Likelihoods

    Author : Bart Eduard Jan Pelssers; Jan Conrad; Jochen Schieck; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Dark matter; direct detection; statistical analysis; fysik; Physics;

    Abstract : Astronomical and cosmological observations on different scales point to the existence of dark matter. In the current cosmological paradigm this dark matter accounts for about 26% of the energy-density of the universe, yet has not been directly observed. READ MORE

  5. 3. Effects of Dark Matter in Astrophysical Systems

    Author : Stefan Clementz; Mattias Blennow; Tommy Ohlsson; Riccardo Catena; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Dark matter; Self-interactions; solar capture; helioseismology; inelastic dark matter; direct detection; indirect detection; Fysik; Physics;

    Abstract : When studying astrophysical structures with sizes ranging from dwarf galaxies to galaxy clusters, it becomes clear that there are vast amounts of unobservable gravitating mass. A compelling hypothesis is that this missing mass, which we call dark matter, consists of elementary particles that can be described in the same manner as those of the standard model of particle physics. READ MORE

  6. 4. Asynchronous direct-sequence code-division multiple access systems : low complexity data detection and robust detectors

    Author : Thomas Östman; KTH; []
    Keywords : ;

    Abstract : .... READ MORE

  7. 5. Coding, Decoding and Multiuser Detection for Wireless CommunicationsCoding, Decoding and Multiuser Detection for Wireless Communications

    Author : Pål Orten; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; direct-sequence code division multiple access DS-CDMA ; sequential decoding; Rayleigh fading; multirate DS-CDMA; optimum distance spectrum; rate matching; rate compatible punctured convolutional codes; multiuser detection; nested codes;

    Abstract : In the strive for making the Universal Mobile Telecommunication System(UMTS) a reality, concepts and techniques are to be developed which canprovide both high system capacity and sufficient quality for the increasingnumber of mobile users. To obtain these objectives, powerful and flexibleerror control coding is needed, as well as efficient means for many usersto share the same commmication medium. READ MORE