MadSci Network: Physics

Subject: What is the length of a photon?

Date: Fri Aug 27 11:21:06 1999
Posted by John Keck
Grade level: grad (science) School: Columbia University
City: New York State/Province: NY Country: USA
Area of science: Physics
ID: 935767266.Ph

I'm not looking for the simplistic Lorentz contraction answer of zero.  It
takes a finite interval of time for an atomic electron to emit a photon,
and l = c t.  Thanks.

P.S.  I saw the answer to the question "What is the smallest known particle
at present?".  I think the answer would probably best refer to the
particle's cross-section: the neutino.What is the smallest known particle
at present? 

Re: What is the length of a photon?

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