Weyl version of the Rarita-schwinger equation

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Discussion Overview

The discussion focuses on the Weyl version of the Rarita-Schwinger equation, specifically seeking its expression in terms of two-component spinors rather than Dirac spinors. Participants explore different representations and formulations related to this equation.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant requests the form of the Weyl version of the Rarita-Schwinger equation.
  • Another participant expresses confusion regarding what is meant by the "Weyl version" in relation to other equations.
  • A participant clarifies the desire to express the equation using two-component spinors.
  • There is a correction regarding the absence of Dirac spinors in the equation, emphasizing the use of Rarita-Schwinger spinors instead.
  • A participant inquires about expressing the equation in terms of sigma matrices instead of gamma matrices and seeks clarification on replacing the Levi-Civita symbol.
  • A link to a Wikipedia page is provided, suggesting that the Weyl form relates to the chiral representation of Dirac algebras.
  • A mathematical expression is presented, detailing the equations involving symmetric spinors φ and χ, with κ representing mass and specifying the indices associated with each spinor.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the specifics of the Weyl version of the Rarita-Schwinger equation, and multiple viewpoints regarding its formulation and representation remain evident.

Contextual Notes

There are unresolved questions regarding the definitions and representations of the spinors involved, as well as the implications of using different matrices in the formulation.

yola
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Hello,
Can someone please give me the form of the "Weyl" version of the Rarita-Schwinger equation.
Thanks
 
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I don't know what you mean. What's the Weyl version of other equation ?
 
i want the expression in terms of two component spinors and not Dirac spinors.
 
There are no Dirac spinors in that equation, but Rarita-Schwinger spinors.
 
yes you're right.
what if i want to express it in terms of sigmas instead of gamma matrices. by what i can replace the levi-civita?
 
abφaa1a2...alb1b2...bk = iκ χa1a2...alb1b2...bk
abχa1a2...albb1b2...bk = iκ φaa1a2...albb1b2...bk

Here both spinors φ and χ are symmetric. κ is the mass. φ has l+1 undotted (raised) and k dotted (lowered) indices; χ has l undotted and k+1 dotted indices. The underlying representation of the field equations is therefore ((l+1)/2 , k/2) ⊕ (l/2 , (k+1)/2).
 
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