Essays about: "antimatter"

Showing result 1 - 5 of 16 essays containing the word antimatter.

1. 1. Development of a guide system for free neutron oscillation searches at the European Spallation Source

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Lunds Tekniska Högskola; Lunds universitet/European Spallation Source ESS AB

   Author : Linnéa Björk; [2023]
   Keywords : ESS; neutrons; dark matter; antimatter; neutron guides; Physics and Astronomy;

   Abstract : In this project, a neutron delivery system for the study of free neutron oscillations at the HIBEAM beamline at the European Spallation Source (ESS) has been developed. The HIBEAM experiment is part of a two-stage program at ESS which will address open questions in physics; specifically the nature of dark matter and the observed asymmetry between matter and antimatter in the Universe. READ MORE

3. 2. Computational investigation of the feasibility touse solid neon moderation for GBAR

   University essay from Stockholms universitet/Fysikum

   Author : Lars Gehrmann; [2023]
   Keywords : ;

   Abstract : The main goal of the GBAR (Graviational Behaviour of Antihydrogen at Rest) experiment is to investigatethe gravitational effect on antimatter by measuring the classical free fall of an antihydrogen atom. The requiredpositrons are created by pair production inside a tungsten target and are moderated using a tungsten mesh. READ MORE

4. 3. Phase Transitions in the Two-Higgs-Doublet Model with a Softly-Broken Z2 Symmetry

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

   Author : Filip Gustavsson; [2023]
   Keywords : Particle Physics; Beyond Standard Model; Two-Higgs Doublet Model; 2HDM; Electroweak Phase Transitions; Strong First-order Phase Transition; Dimensional Reduction; CP-conserving; Softly broken Z2-symmetry; Physics and Astronomy;

   Abstract : The two-Higgs-doublet model (2HDM) is an extension to the Standard Model which adds a second Higgs doublet. This extension provides freedom within the model, in comparison to the Standard Model, which makes it possible to study strong electroweak phase transitions. READ MORE

5. 4. Studies of the J/Ψ → anti-Σ0Σ0 Reaction with BESIII : Event Selection Development

   University essay from Uppsala universitet/Kärnfysik

   Author : Benjamin Verbeek; [2023]
   Keywords : hyperon; CP; symmetry; event selection; tracks; BES; BESIII; USTC;

   Abstract : The apparent symmetry between matter and antimatter raises the question of why the universe consists of mostly matter. Via an academic exchange to USTC Hefei, a reaction was studied that aims to give insight into this question. READ MORE

6. 5. Analysis of Simulated Charm Baryons : Decay Kinematics and Parameter Estimations for Studies with the Belle II Experiment

   University essay from

   Author : Elsa Spengler; Sara Bjursten; [2023]
   Keywords : CP-symmetry; charm baryon; estimation; generator; Belle II;

   Abstract : A fundamental assumption of our universe has been that equal amounts of matter and antimatter were created during the Big Bang. Since the world we live in is made entirely of matter, one either needs to question this assumption, or explain how matter was enriched with respect to antimatter. READ MORE