Sökning: "large hadron collider"

Visar resultat 1 - 5 av 86 avhandlingar innehållade orden large hadron collider.

  1. 1. Particle Phenomenology of Compact Extra Dimensions

    Författare :Henrik Melbéus; Tommy Ohlsson; Andrea Romanino; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Higher-dimensional quantum field theories; universal extra dimensions; Arkani-Hamed–Dimopolous–Dvali ADD model; hierarchy problem; Kaluza– Klein dark matter; neutrino mass; seesaw mechanism; leptonic mixing; renormalization group running; collider phenomenology; Large Hadron Collider;

    Sammanfattning : This thesis is an investigation of the subject of extra dimensions in particle physics. In recent years, there has been a large interest in this subject. In particular, a number of models have been suggested that provide solutions to some of the problem with the current Standard Model of particle physics. LÄS MER

  2. 2. Astrophysical and Collider Signatures of Extra Dimensions

    Författare :Henrik Melbéus; Tommy Ohlsson; Jörn Kersten; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Extra-dimensional quantum field theories; universal extra dimensions; Kaluza-Klein dark matter; Arkani-Hamed-Dimopoulos-Dvali model; hierarchy problem; neutrino mass; seesaw mechanism; Large Hadron Collider phenomenology; Elementary particle physics; Elementarpartikelfysik;

    Sammanfattning : In recent years, there has been a large interest in the subject of extra dimensions in particle physics. In particular, a number of models have been suggested which provide solutions to some of the problems with the current Standard Model of particle physics, and which could be tested in the next generation of high-energy experiments. LÄS MER

  3. 3. Criticality of fast failures in the High Luminosity Large Hadron Collider

    Författare :Björn Lindström; Roger Ruber; Daniel Wollmann; Maja Olvegård; Annika Nordt; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; machine protection; failures; beam losses; accelerator physics;

    Sammanfattning : Each of the two Large Hadron Collider (LHC) beams contain 362 MJ of energy. This will be further increased to 678 MJ in the upcoming upgrade to the High Luminosity LHC (HL-LHC). In the event of an uncontrolled beam loss, a significant hazard occurs, that can damage the machine components. LÄS MER

  4. 4. Synchrotron Radiation, Adsorption Isotherms and the Large Hadron Collider Vacuum System

    Författare :Erik Wallén; Chalmers University of Technology; []
    Nyckelord :H2; photon stimulated desorption; CO2; cryotrapping; liquid He; accelerators; isotherms; CH4; He; Monte Carlo simulations; synchrotron radiation; vacuum; CO; physisorption;

    Sammanfattning : In circular particle accelerators and storage rings with relativistic beams of particles, e.g. electrons or protons, the vacuum performance of the accelerator is determined by the outgassing from the walls of the beam vacuum chamber. LÄS MER

  5. 5. Phenomenological Studies in Cosmoparticle Physics : Expansion Histories in non-Einstein Gravity and Dark Matter at the Large Hadron Collider

    Författare :Sara Rydbeck; Joakim Edsjö; Laura Covi; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Theoretical Physics; teoretisk fysik;

    Sammanfattning : As the Big Bang model has become established, the fields of cosmology and particle physics have become intertwined. A range of observations forces us to consider the phenomena of dark matter and dark energy. LÄS MER