Finding "R. Gastmans, Ubiquitous Photon: Helicity Method for QED and QCD"

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Discussion Overview

The discussion revolves around the search for the book "R. Gastmans, Ubiquitous Photon: Helicity Method for QED and QCD" and the challenges faced in calculating six photon amplitudes in scalar QED using the helicity method. The scope includes theoretical aspects of quantum electrodynamics (QED) and references to literature.

Discussion Character

  • Homework-related, Meta-discussion

Main Points Raised

  • One participant expresses difficulty in finding the explicit form of wave functions in QED while using the helicity method for calculations.
  • Another participant provides a link to Amazon for purchasing the book, indicating its availability and price.
  • A later reply acknowledges the suggestion and expresses gratitude for the assistance.
  • One participant thanks others for their help but mentions financial constraints preventing them from purchasing the book.

Areas of Agreement / Disagreement

Participants generally agree on the need for the book and express gratitude for the provided link, but there is no consensus on how to address the financial barrier to obtaining it.

nguoithamdo
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i am encoutering a problem
i use helicity method to caculate six photon amplitude in scalar QED but i don't know explicit form of wave fuction QED . And i need a book with title
" R. Gastmans, Ubiquitous photon: Helicity method for QED and QCD"

where can i find it?

thank you
 
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Last edited by a moderator:
thank you for your helping

thank you very much for your instruction but i don't have money:frown:
 

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