CalcHEP

dipole operator (Dirac matrix commutator)

Asked by Sam McDermott

Hi,

I'm having trouble figuring out the index structure in the interaction files. In particular, how would I write something like

mu \bar{chi}_2 \sigma_{\mu \nu} \chi_1 F^{\mu \nu} + h.c.

where mu is some (dimensionful) coupling?

If there is a manual that explains this, please feel free to point me there.

Thanks!

Sam

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Neil Christensen (neil-christensen-qft) said : 		#1

See Appendix D of the manual at:

http://theory.sinp.msu.ru/~pukhov/calchep.html

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Sam McDermott (mcdermod) said : 		#2

Thanks -- Sec 8 was also helpful. I had looked through previously but obviously not closely enough.