Sökning: "Multiplicities"

Visar resultat 1 - 5 av 12 uppsatser innehållade ordet Multiplicities.

  1. 1. Elementary proof of the Riemann—Roch Theorem

    Kandidat-uppsats, Uppsala universitet/Algebra, logik och representationsteori

    Författare :Hampus Sundgren; [2023]
    Nyckelord :Algebraic Geometry; Riemann–Roch; The Riemann–Roch Theorem; Divisors; Differentials; L D ; l D ; Vector space L D ; Proof of the Riemann–Roch Theorem;

    Sammanfattning : This thesis will cover an elementary proof of the Riemann–Roch Theorem for planecurves. We will introduce the notions of divisors, which is a convenient way of com-puting multiplicities of rational function, then continuing by introducing differentials. LÄS MER

  3. 2. Forward-Backward Multiplicity Correlations for Proton-Proton Collisions with ALICE at LHC-CERN

    Kandidat-uppsats, Lunds universitet/Partikel- och kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :August Koppers; [2022]
    Nyckelord :ALICE; Particle physics; CERN; LHC; QCD; pp collisions; Lund string model; Two particle correlation; Physics and Astronomy;

    Sammanfattning : This thesis presents the study of two-particle pseudorapidity correlations in pp-collisions at √s = 13 TeV using the ALICE detector at LHC, CERN. The correlation function was calculated as a function of multiplicity and was repeated for several multiplicity classes and different charge combinations in the forward-backward and central regions of the detector, respectively. LÄS MER

  4. 3. Benchmark of the fission channels in TALYS

    Master-uppsats,

    Författare :Fredrik Nordström; [2021]
    Nyckelord :Fission; Prompt neutrons; Prompt gamma-rays; Nuclear reaction codes; TALYS; GEF;

    Sammanfattning : In this project, different fission models in the nuclear reaction code TALYS have been compared to GEF version 2020/1.2. The data included in the comparison are mass yield distributions, average prompt neutron energies per fragment mass, and average multiplicities of both neutrons and γ-rays per fragment mass. LÄS MER

  5. 4. The Milky Way and its Exoplanets

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Jesper Nielsen; [2021]
    Nyckelord :Planets and Satellites; Exoplanets; Occurrence Rates; Physics and Astronomy;

    Sammanfattning : The detections of over 4000 exoplanets as of today has shown that they exist in a wide range of different configurations, otherwise known as architectures. Recently, studies have been made trying to link the environment of host stars to the architectures of their planetary systems and have found that the architectures of planetary systems may not necessarily be uniform in the Milky Way. LÄS MER

  7. 5. Gamma-ray tracking using graph neural networks

    Master-uppsats, KTH/Fysik

    Författare :Mikael Andersson; [2021]
    Nyckelord :Physics; Nuclear Physics; Detectors; Tracking; Neural Networks; GNN; Gamma-ray; Fysik; Kärnfysik; Detektorer; Tracking; Neurala Nät; GNN; Gammastrålning;

    Sammanfattning : While there are existing methods of gamma ray-track reconstruction in specialized detectors such as AGATA, including backtracking and clustering, it is naturally of interest to diversify the portfolio of available tools to provide us viable alternatives. In this study some possibilities found in the field of machine learning were investigated, more specifically within the field of graph neural networks. LÄS MER