Transformation of auxiliary field

  • Thread starter rbwang1225
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  • #1
rbwang1225
118
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In West's book "Introduction to Strings and Branes", page 2, I don't understand why the auxiliary field e transformed as e'([itex]\tau'[/itex])d[itex]\tau'[/itex]=e([itex]\tau[/itex])d[itex]\tau[/itex].
p2.jpg
 
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Answers and Replies

  • #2
Korybut
48
1
By construction :-)

You impose several conditions on your action and then get how auxilary fields should transform. Just like with YM gauge field, you want gauge invarianceand from this you get transformation law
 

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