Sökning: "chiral"

Visar resultat 6 - 10 av 51 uppsatser innehållade ordet chiral.

  1. 6. On the vector transition form factors in the Ω- → Ξ0 W- decay

    Master-uppsats, Uppsala universitet/Kärnfysik

    Författare :Magnus Bertilsson; [2023]
    Nyckelord :QCD; Form factors; Vector form factors; Chiral perturbation theory; One-loop diagrams; Hadrons; Hadron physics; Hyperon decay; Hadron structure;

    Sammanfattning : To learn more about the structure of hadrons we study form factors. In the semi-leptonic decay Ω- → Ξ0W- two types of form factors arise namely the vector and axial-vector transition form factors. LÄS MER

  3. 7. Rare Weak Decays of the Omega Baryon

    Master-uppsats, Uppsala universitet/Kärnfysik

    Författare :Cornelis Johannes Gerardus Mommers; [2022]
    Nyckelord :hadron; physics; nuclear; particle;

    Sammanfattning : We study rare decays of the Omega baryon using SU(3) chiral perturbation theory, a successfuleffective field theory of quantum chromodynamics at low energies. At leading-order, we calculatethe branching fractions of the decay Ω− → Ξππ for all possible combinations of pions. LÄS MER

  4. 8. Quantum Computing in Nuclear Physics

    Master-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Luca Bernecker; [2022]
    Nyckelord :quantum computing; nuclear physics; qubits; theoretical physics; Physics and Astronomy;

    Sammanfattning : In this thesis, we investigate many–body systems using simulations of quan- tum computers. Quantum computing is a computational paradigm based on qubits which are defined in a Hilbert space instead of the familiar binary bits. LÄS MER

  5. 9. A unified view of a family of soliton equations related to spin Calogero-Moser systems

    Master-uppsats, KTH/Fysik

    Författare :Anton Ottosson; [2022]
    Nyckelord :Soliton equations; Solitons; Integrable systems; Spin Calogero-Moser systems; Exact solutions; Benjamin-Ono-type equations; Solitonekvationer; Solitoner; Integrerbara system; sCM-system; Exakta lösningar; Ekvationer av Benjamin-Ono-typ;

    Sammanfattning : We study the interconnections between the spin Benjamin-Ono (sBO) and half-wave maps (HWM) equations, a pair of nonlinear partial integro-differential equations that have recently been found to permit multi-soliton solutions, where the time evolution of the constituent solitons can be described in terms of the well-known, completely integrable, spin Calogero-Moser (sCM) system. By considering a symmetry transformation of the sCM dynamics we are led to introduce a scale parameter into the sBO equation, yielding what we call the rescaled sBO (rsBO) equation, which has both the sBO and HWM equations as special cases. LÄS MER

  7. 10. A numerical implementation of the chirality-flow formalism

    Master-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Zenny Wettersten; [2022]
    Nyckelord :chirality-flow; chirality; flow; spinor-helicity; tree-level; diagram; amplitude; generator; numerical; Physics and Astronomy;

    Sammanfattning : The chirality-flow formalism has proven to make amplitude calculations in the Standard Model analytically simple in comparison to previously established formalisms. To test the viability of the chirality-flow formalism for numerical implementations, a Chiral Automized Flow Extension (CAFE) for MadGraph5_aMC@NLO has been developed to compare amplitude evaluation time scaling between the two. LÄS MER