[MAP] Born in a B field.
alex dragt
dragtnb at comcast.net
Tue Mar 15 03:40:37 EDT 2011
Dear Kirk,
It occurs to me if muons are born in a magnetic field, say from pion
or K decay in a solenoid and/or a magnetic horn, then the presence of
this field (its associated vector potential) may have to be taken into
account. For an analogy, it is known that when electrons are born in
a magnetic field (from a photocathode immersed in a magnetic field),
the associated vector potential must be taken into account. Although
not yet widely appreciated from this perspective, it is the effect of
the vector potential, coupled with the invariance of eigen emittances,
that lies behind the flat beam transformer. See the preprint
arXiv:1010.1558v2 [physics.acc-ph]
Best,
Alex
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://lists.bnl.gov/mailman/private/map-l/attachments/20110314/b11ac9ed/attachment.html
More information about the MAP-l
mailing list