Essays about: "Light Dark Matter"

Showing result 1 - 5 of 39 essays containing the words Light Dark Matter.

  1. 1. Pulse Amplitude Reconstruction in the LDMX Hadronic Calorimeter Readout

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Author : Aksel Draguanov Mihaylov; [2023]
    Keywords : Physics and Astronomy;

    Abstract : The universe shows signs of containing some invisible matter, known as dark matter. There are many possible constituents for dark matter, one such being light dark matter which would interact with ordinary matter through a new mediator force and have masses in the range of a few MeV to GeV. READ MORE

  3. 2. Cosmological Constraints for a Varying Dark Energy Model

    University essay from Umeå universitet/Institutionen för fysik

    Author : Abdullah Alsakka; [2023]
    Keywords : Astronomy; Varying Dark Energy; Distances;

    Abstract : This paper uses the Pantheon+ data set that consists of 1701 light curves of 1550 unique type IaSupernova to find constraints on various cosmological models and compare them with a varying darkenergy model proposed by Chevallier, Polarski and Linder in the early 2000s and analyze it deeper.The results show a tipping point from a decelerating universe to an accelerating one at a redshift ofz = 0. READ MORE

  4. 3. Neutron Veto Inefficiency Studies with FLUKA for the LDMX Hadronic Calorimeter

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Jaida Raffelsberger; [2023]
    Keywords : Physics and Astronomy;

    Abstract : Dark matter accounts for about 85% of all matter in the Universe, yet its particle nature remains unknown. The Light Dark Matter eXperiment (LDMX) is a proposed fixed-target missing-momentum experiment that intends to probe the predominantly experimentally uncharted MeV-GeV mass range for "light dark matter". READ MORE

  5. 4. The Higgs Width in Higgs production in association with a W+ boson

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Author : Wijeratne Mohandiramge Umashi Navisha Fernando; [2023]
    Keywords : Higgs boson; Higgs width; off-shell; on-shell; narrow-width approximation; MadGraph5_MC@NLO; W boson; supersymmetry; dark matter; Physics and Astronomy;

    Abstract : The width of the Higgs boson is a quantity that cannot be measured directly from the on-shell Higgs peak; it would have to be measured indirectly. In 2013, Caola and Melnikov developed a method to determine the Higgs width by using off-shell and on-shell cross-sections and applying the narrow-width approximation. READ MORE

  6. 5. Trigger-Level Multiple Electron Event Classification with LDMX using Artificial Neural Networks

    University essay from Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Jacob Lindahl; [2023]
    Keywords : LDMX; ANN; CNN; GNN; RNN; DM; Physics and Astronomy;

    Abstract : Artificial neural networks is a powerful tool for classifying and identifying patterns in large amounts of data. One of the possible tasks of these networks is classification of data into categories. READ MORE