Help with Higgs Strahlung Production & Formulating a Matrix Element

Click For Summary
SUMMARY

The discussion focuses on Higgs strahlung production with a specific emphasis on 4th order Feynman diagrams mediated by the Z-particle. Participants inquire about the number of possible diagrams and the formulation of the matrix element for one of these diagrams, particularly under weak corrections involving electron and positron interactions. The conversation highlights the complexity of incorporating the Higgs boson (H ray) into the calculations and the need for clarity on whether to consider QCD corrections alongside weak corrections.

PREREQUISITES
  • Understanding of Feynman diagrams in particle physics
  • Knowledge of Higgs strahlung production mechanisms
  • Familiarity with weak interactions and QCD corrections
  • Ability to formulate matrix elements in quantum field theory
NEXT STEPS
  • Research the specific characteristics of 4th order Feynman diagrams in electroweak interactions
  • Study the formulation of matrix elements for weak corrections in particle physics
  • Explore the role of QCD corrections in Higgs strahlung processes
  • Learn about the treatment of Higgs bosons in quantum field theory calculations
USEFUL FOR

Particle physicists, researchers in quantum field theory, and students studying electroweak interactions will benefit from this discussion.

Qiahs
Messages
2
Reaction score
0
Hello dear everyone

I would like to ask if someone can help me with the following two things:

1) How many different feynman diagrams can one possibly draw for Higgs strahlung production that is of 4th order? The mediator should be Z-particle.

2) Formulate an equation for the amplitude (also known as the matrix element) of just one of those diagrams.

Your help is so much appreciated.
 
Physics news on Phys.org
Do you mean a 4th order QCD correction? Or you want the weak corrections and qcd corrections?

Can you write a 1st order correction matrix element?
 
It should only be the weak corrections of 4th order, be cause we are using electron and positron.

I have written one, but not sure if its correct.. What is challenging is the H ray; how to treat that?

Do u know how many different diagrams one can make of 4th order correction in this case? :)
 
Last edited:

Similar threads

Undergrad New Constraints On The Higgs Boson Width
  • · Replies 11 ·
Replies
11
Views
4K
Graduate Branching ratios | Higgs phenomenology
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Relative sign in diagrams for ##Z##-boson exchange for ##WW## scattering
  • · Replies 5 ·
Replies
5
Views
2K
Graduate How Does the Higgs Field Affect Particle Speeds in Feynman Diagrams?
  • · Replies 13 ·
Replies
13
Views
4K
Undergrad Feynman Diagrams: ψφ → ψφ | Tips & Advice
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Matrix Elements via Feynman Diagrams
  • · Replies 1 ·
Replies
1
Views
4K
Graduate How does one find the Feynman diagrams?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How powerful would a collider have to be to observe a sphaleron?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Problem with Feynman rules in QCD -- help understanding please
  • · Replies 1 ·
Replies
1
Views
2K
Graduate The Feynman Diagrams of Quantum Electrodynamics
  • · Replies 3 ·
Replies
3
Views
3K