Essays about: "helicity amplitudes"

Showing result 1 - 5 of 9 essays containing the words helicity amplitudes.

1. 1. Spinor-Helicity Formalism and ScatteringAmplitudes in Various Dimensions

   University essay from Uppsala universitet/Teoretisk fysik

   Author : Chen Huang; [2023]
   Keywords : ;

   Abstract : In recent decades, spinor-helicity formalism has gained popularity as a useful tool for studyingscattering amplitudes in four dimensions. This formalism has been extended to higher dimensions,but there is still much work to be done around its application. READ MORE

3. 2. Three-body decay as a baryon polarizer

   University essay from Uppsala universitet/Kärnfysik

   Author : Carl Johan Königsson; [2023]
   Keywords : Three-body decay; polarization; CP violation; hyperon; resonance; Trekroppssönderfall; polarisation; CP-brytning; hyperon; resonans;

   Abstract : According to the standard model, the size of CP violation in the weak decay Λ → pπ- is predicted to be ∼ 10-5. This means that a very high precision is needed if we want to be able to measure it. READ MORE

4. 3. MadGraph Implementations of the Chirality-Flow Formalism for QED

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

   Author : Emil Boman; [2023]
   Keywords : Physics and Astronomy;

   Abstract : The chirality-flow formalism has been proven to simplify the calculation of helicity amplitudes, both analytically and in a first numerical implementation developed as an extension of MadGraph5_aMC@NLO. Expanding on this work, two new implementations have been developed. READ MORE

5. 4. Pure Yang-Mills amplitudes in 5 Dimensions : A study of vector boson amplitudes at 4 and 5 points

   University essay from Uppsala universitet/Teoretisk fysik

   Author : Athanasios Voutouras; [2023]
   Keywords : Yang-Mills; Scattering; Amplitudes; QFT;

   Abstract : In this text we explore the case of pure Yang-Mills amplitudes in 5 spacetime dimensions for vector particles. Extending current toolsets such as the Spinor-Helicity formalism in 5D would be beneficial to the study of the various cases of super Yang-Mills and supergravity. READ MORE

6. 5. Exploring properties of a 10-dimensional pure spinor twistor transform

   University essay from Uppsala universitet/Teoretisk fysik

   Author : Cesar Garcia; [2021]
   Keywords : String Theory; Twistors; Spinor-helicity variables;

   Abstract : In this review, several tools used in the study of super-Yang-Mills scattering amplitudes are discussed, namely spinor-helicity and (super)twistor variables. These variables are then implemented in string theories in 4D, and a suitable generalization to 10D using pure spinors is discussed. READ MORE