Real Photon PWG


B. Ritchie would like to show these preliminary results of the eta-prime production cross sections at the "Second Symposium on Meson Production in pp and pd Interactions" in Krakow, Poland from May 31 - June 3, 2004 (ps 70kB). Here is some additional information for the talk.

M. Bellis will give this talk at the upcoming N* 2004 conference. This talk was presented at the last collaboration meeting in February. The title of the talk is "A Search for Missing Baryons in $\gamma p \rightarrow p \pi^{+} \pi^{-}$ (pdf 1.7MB).

On Nov. 14, 2003, O. Dzyubak was scheduled to give a talk on the holding magent system for the polarized target at the RPWG meeting. Unfortunately, there was no time available, and the talk was postponed. The presentation has been posted here for the working group and is titled "Forces Acting on Conductors of 0.3 Tesla Holding Magnet System in Self-induced Magnetic Field" (pdf 1.5MB).

M. Battaglieri and R. De Vita want to include their Theta+ results from the gamma p -> Theta+ K0 analysis in V. Koubarovsky's talk at the Penta-Quark 2003 Workshop here at JLAB. The results seeking RPWG approval are in File 2. The results in File 1 are from a talk given at the most recent SON working group meeting and are provided for additional information.
  • File 1 (additional information) (postscript 1.2MB)
  • File 2 (review for RPWG approval) (postscript 145kB)

K. Hicks wants to show these Theta+ results at "X International Conference On Hadron Spectroscopy ". These are results from the g1c data set.

J. Melone's talk of "K$\Lambda$ photoproduction with Linearly Polarised Photons at CLAS". This is an analysis of the g8a data set. Jody will present this work at the "Second Conference on Nuclear and Particle Physics with CEBAF at JLAB". (postscript 4.4MB)

C. Gordon's talk of "Missing Nucleon Resonances: Photoproduction of the $\rho^{0}$ Meson at CLAS using Linearly Polarised Photons". This is an analysis of the g8a data set. Chris will present this work at the "Second Conference on Nuclear and Particle Physics with CEBAF at JLAB". (postscript 1.9MB)

S. Stepanyan's results of "Coherent Vector Meson Production off the Deuteron". This is an analysis of the g2 data set. Stepan will present this work at the "FIU/JLAB Workshop on the Deuteron". (postscript 12MB)

S. Strauch's result of his g1c analysis shown at the January 2003 RPWG meeting. Barry Berman will present this plot at the "Workshop on New Aspects of Quark Nuclear Physics with Polarizaed Photons". (postscript 149kB)

I. Niculescu's plots of angular distributions for the sigma- photoproduction on the neutron (analysis of g2 data) to be shown at "Workshop on New Aspects of Quark Nuclear Physics with Polarizaed Photons" .

M. Dugger's draft for PRL article, "Eta photoproduction on the proton up to 1.95 GeV" (posted 4-30-2002) (postscript 611kB)

Peter Heimberg's contribution to the proceedings of INPC2001 "Neutral-Pion photoproduction on the Proton with the CLAS Detector" (postscript 168kB)

Ioana Niculescu's contribution to the proceedings of INPC2001 "Sigma(-) Photoproduction on the Neutron: Results from CLAS" (postscript 492kB)

Henry Juengst's contribution to the proceedings of INPC2001 "Photoproduction of Hyperon Resonances on Hydrogen" (postscript 320kB)

John Price's draft "Photoproduction of the Xi-(1321) Hyperon" (updated Mar. 21, 2001) (postscript 224kB)

Here are three plots from John Price on Xi photoproduction
JWP-townmeeting.ps

Here are two plots regarding pi0 production submitted by Dave Jenkins for the DNP town meeting
TownMeet.ps
sigplot.ps

Here are two plots submitted by Silvia Niccolai for approval for the DNP town meeting
g3he3.ps
g3he4.ps

Here are two tranparencies submitted by Reinhard Schumacher "highlighting our progress on K+ Lambda and K+ Sigma0 photoproduction at CLAS"
Strangeness_LRP_slides.ps

Here are some plots submitted by Patrizia Rossi for RPPWG approval.
deuterio_holt_1_new.pdf
deuterio_holt_2_new.pdf



Here is a note describing some of the technical details of the Saclay analysis.



G1a "Golden" list


Burin Asavapibhop's approved plot on gamma p -> pi+ n diff. cross section (password protected)



maintained by mikewood@jlab.org