[Halld-physics] Papers for this Friday's Discussion

[Shepherd, Matthew]

Hi all,

Last week we had an interesting discussion about the differences between diffractive production and one pion exchange.  We noted that some meson quantum numbers are more accessible in charge exchange production and are suppressed in neutral pion exchange.  In this regard, we were discussing the merits of using delta++ at the lower vertex in charge exchange processes instead of a recoil neutron.  …and that leads us to a few papers on charge exchange production of 3 pi to read and discuss this week:

Condo et al., PRD 41, 3317 (1990)
http://link.aps.org/doi/10.1103/PhysRevD.41.3317

Condo et al., PRD 48, 3045 (1993)
http://link.aps.org/doi/10.1103/PhysRevD.48.3045


For completeness, CLAS also has a paper about this reaction:

Nozar et al., PRL 102, 102002 (2009)
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.102.102002

Elton kindly volunteered to lead the discussion.

Matt

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Matthew Shepherd, Associate Professor
Department of Physics, Indiana University, Swain West 265
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