Sökning: "Radiative Corrections"

Hittade 4 uppsatser innehållade orden Radiative Corrections.

  1. 1. A study of Spontenous CP Violation in the Scale Invariant 2HDM

    Kandidat-uppsats, Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Jimmy Gunnarsson; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : In this thesis, we study the Higgs mass spectrum and spontaneous CP violation, where one of the Higgs vacuum expectation values acquires a non-trivial phase θ in a Type-I 2HDM. We begin by investigating CP violating effects at tree-level, and then expand our studies by taking into account one-loop radiative corrections. LÄS MER

  3. 2. Radiative Corrections Beyond the Soft-Photon Approximation

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Jacob Lindahl; [2021]
    Nyckelord :Soft-Photon Approximation; Bremsstrahlung Correction; Transition Form Factor; Radiative Corrections; Physics and Astronomy;

    Sammanfattning : This thesis calculates the bremsstrahlung correction beyond the soft-photon approximation for the decay ω → π0 l+ l- . The effect of the radiative corrections on the extraction of the transition form factor from data is investigated. LÄS MER

  4. 3. The Systematics of Radiative Corrections and A Proposed Approximative Evaluation Scheme

    Master-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Leo Wallin Sonesson; [2012]
    Nyckelord :saddle point; loop diagram approximations; Physics and Astronomy;

    Sammanfattning : We propose an approximate scheme based on a saddle point approximation of propagators in higher order perturbation calculation. This scheme is applied to a general expression for one-loop scalar functions, and thereafter used to calculate the anomalous magnetic moment of the electron. LÄS MER

  5. 4. Potential of Hyperion imagery for simulation of MODIS NDVI and AVHRR-consistent NDVI time series in a semi-arid region

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Masoumeh Ghadiri; [2010]
    Nyckelord :Hyperion; NDVI; AVHRR; MODIS; time series; MODO; Earth and Environmental Sciences;

    Sammanfattning : Long time series of satellite remotely sensed Normalized Difference Vegetation Index (NDVI) as an indicator of vegetation greenness can be used in a broad range of research topics such as climate change, vegetation dynamics and desertification monitoring. The first phase of this study tests a practical method using Hyperion imagery onboard on Earth Observing-1 (EO1) spacecraft for simulation of MODerate resolution Imaging Spectroradiometer (MODIS) NDVI and prediction of Advanced Very High Resolution Radiometer (AVHRR) NDVI data series in a semi-arid region in New Mexico, USA in 2007. LÄS MER