Essays about: "dark photon"

Showing result 1 - 5 of 17 essays containing the words dark photon.

  1. 1. Test setup for LDMX HCal readout

    University essay from Lunds universitet/Partikelfysik; Lunds universitet/Fysiska institutionen

    Author : Joshua Greaves; [2020]
    Keywords : Dark matter; LDMX; dark photon; hadronic calorimeter; photomultiplier tube; Physics and Astronomy;

    Abstract : It is evident from cosmological observations such as the Cosmic Microwave Background, and the motion of galaxies, that the universe consists of approximately 5 times more mass than visible matter can account for. The Light Dark Matter eXperiment (LDMX) will take a unique approach in its hunt for dark matter; it will look for missing momentum signals in electron collisions with a Tungsten target, and will be looking in the sub GeV energy range for evidence of dark matter interactions. READ MORE

  2. 2. Dark Photon decay generated by muons in the SHiP experiment

    University essay from Uppsala universitet/Institutionen för materialvetenskap

    Author : Elizaveta Yakovleva; [2020]
    Keywords : dark matter; particle physics; particle accelerators; new physics;

    Abstract : This project has investigated the muon background of the SHiP experiment to determine whether it can boost the experiment sensitivity to visible Dark Photon decay. Using Fermi-Weizsäcker-Williams approximation to muon scattering we found the probability of muons generating massive photons, using Bremsstrahlung and direct lepton pair production as an estimation of the frequency of muon EM-interactions. READ MORE

  3. 3. Signal background interference effects in lepton trident events with a new low mass mediator

    University essay from Lunds universitet/Teoretisk partikelfysik

    Author : Patricia Andrea Gutiérrez García; [2020]
    Keywords : dark matter; pythia; matrix element corrections; LDM; Dire; Madgraph; dark photons; Physics and Astronomy;

    Abstract : In this project we present a phenomenological study of signal to background interference effects in leptonic tridents produced in parton showers. The interference effects are introduced by linking matrix element corrections of a kinetically mixed dark photon model to the parton shower Dire. READ MORE

  4. 4. Imaging Using Machine Learning for the LDMX Electromagnetic Calorimeter

    University essay from Lunds universitet/Partikelfysik; Lunds universitet/Fysiska institutionen

    Author : Leo Östman; [2020]
    Keywords : Physics and Astronomy;

    Abstract : LDMX is a fixed target experiment designed to search for light dark matter. The experiment will search for dark matter signatures using missing momentum and energy in events with electrons scattering in the target. READ MORE

  5. 5. Constraints on the Kaluza-Klein Photon as a Dark Matter Candidate from the IceCube Collaboration Results

    University essay from Uppsala universitet/Högenergifysik

    Author : Miquel Colom i Bernadich; [2019]
    Keywords : dark matter; WIMP; Kaluza-Klein; IceCube; neutrinos; muon neutrinos; muons;

    Abstract : New constraints on the scattering cross sections of the Kaluza Klein photon as a darkmatter candidate, its annihilation rate in the Sun and the resulting muon flux on Earth are derived.For this purpose, data collected in the IceCube Neutrino Observatory during 532 days of exposurein the austral winters between 2011 and 2014 have been analyzed with Poisson confidence intervals (J. READ MORE