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advanced_notions:quantum_field_theory:spinor-helicity_formalism [2017/05/12 15:40]
jakobadmin
advanced_notions:quantum_field_theory:spinor-helicity_formalism [2017/10/27 15:40]
jakobadmin ↷ Page moved from quantum_theory:quantum_field_theory:spinor-helicity_formalism to theories:quantum_theory:quantum_field_theory:spinor-helicity_formalism
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 <tabbox Why is it interesting?> ​ <tabbox Why is it interesting?> ​
 +
 +<​blockquote>​
 +“A method is more important than a discovery, since the right method will lead to new and even more important discoveries.”
 +
 +<​cite>​Lev Landau</​cite>​
 +</​blockquote>​
  
 <​blockquote>​ <​blockquote>​
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 </​blockquote>​ </​blockquote>​
  
 +For more on the fact that polarization vectors are not lorentz vectors, have a look at Vol. 1 of Weinberg'​s Quantum Field Theory book, section 5.9. A summary of Weinberg'​s argument with an easier notation can be found in [[http://​phys.columbia.edu/​~nicolis/​GR_from_LI.pdf|this article]]. ​
 <tabbox Layman> ​ <tabbox Layman> ​
  
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 <tabbox Student> ​ <tabbox Student> ​
  
-<note tip> +For a nice introduction to the spinor helicity formalismsee section 3.1 in [[https://​arxiv.org/​pdf/​1704.05067.pdf|Amplitudes for Astrophysicists I: Known Knowns]] 
-In this section things should be explained by analogy and with pictures andif necessary, some formulas. +by Daniel J. Burger et. al.
-</note>+
    
 +Other nice "​low-level"​ discussion can be found [[http://​www.preposterousuniverse.com/​blog/​2013/​10/​03/​guest-post-lance-dixon-on-calculating-amplitudes/​|here]] and [[http://​www.preposterousuniverse.com/​blog/​2014/​03/​31/​guest-post-jaroslav-trnka-on-the-amplituhedron/​|here]]. ​
 +
 +See also [[https://​arxiv.org/​abs/​1310.5353|A brief introduction to modern amplitude methods]] by Lance J. Dixon
 +
 +and [[http://​scipp.ucsc.edu/​~haber/​ph218/​ExperimentersGuideToTheHelicityFormalism.pdf|An Experimenter’s Guide to the Helicity Formalism by Jeffrey D. Richman]]
 <tabbox Researcher> ​ <tabbox Researcher> ​
  
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 The motto in this section is: //the higher the level of abstraction,​ the better//. The motto in this section is: //the higher the level of abstraction,​ the better//.
 </​note>​ </​note>​
 +
  
 --> Common Question 1# --> Common Question 1#
advanced_notions/quantum_field_theory/spinor-helicity_formalism.txt · Last modified: 2018/01/02 14:02 by jakobadmin