scholarly journals Updated SAID analysis of pion photoproduction data

2012 ◽  
Vol 85 (2) ◽  
Author(s):  
Ron L. Workman ◽  
William J. Briscoe ◽  
Mark W. Paris ◽  
Igor I. Strakovsky
Keyword(s):  
Pion Photoproduction ◽  
Photoproduction Data

scholarly journals EXTRACTION OF RESONANCE PARAMETERS AND ROLE OF THE FINAL STATE INTERACTIONS

2014 ◽  
Vol 26 ◽  
pp. 1460082 ◽  
Author(s):  
IGOR I. STRAKOVSKY ◽  
WILLIAM J. BRISCOE ◽  
ALEXANDER E. KUDRYAVTSEV ◽  
VLADIMIR E. TARASOV
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Impulse Approximation ◽  
Pion Photoproduction ◽  
Final State ◽  
The World ◽  
Final State Interactions ◽  
Watson’S Theorem ◽  
Photoproduction Data

We present an overview of the SAID group effort to analyze new γn → π-p cross sections vs. the world database to get new multipoles and determine neutron electromagnetic couplings. The differential cross section for the processes γn → π-p was extracted from new measurements at CLAS and MAMI-B accounting for Fermi motion effects in the impulse approximation (IA) as well as NN- and πN-FSI effects beyond the IA. We evaluated results of several pion photoproduction analyses and compared πN PWA results as a constraint for analyses of pion photoproduction data (Watson's theorem).

Model dependence of single-energy fits to pion photoproduction data

2011 ◽  
Vol 47 (11) ◽  
Author(s):  
R. L. Workman ◽  
M. W. Paris ◽  
W. J. Briscoe ◽  
L. Tiator ◽  
S. Schumann ◽  
...  
Keyword(s):  
Pion Photoproduction ◽  
Model Dependence ◽  
Photoproduction Data

scholarly journals Unified Chew-Mandelstam SAID analysis of pion photoproduction data

2012 ◽  
Vol 86 (1) ◽  
Author(s):  
Ron L. Workman ◽  
Mark W. Paris ◽  
William J. Briscoe ◽  
Igor I. Strakovsky
Keyword(s):  
Pion Photoproduction ◽  
Photoproduction Data

scholarly journals Pion photoproduction data below 1. 5 GeV

1966 ◽  
Author(s):  
J. T. Beale ◽  
S. D. Ecklund ◽  
R. L. Walker
Keyword(s):  
Pion Photoproduction ◽  
Photoproduction Data

scholarly journals Analysis of pion photoproduction data

2002 ◽  
Vol 66 (5) ◽  
Author(s):  
R. A. Arndt ◽  
W. J. Briscoe ◽  
I. I. Strakovsky ◽  
R. L. Workman
Keyword(s):  
Pion Photoproduction ◽  
Photoproduction Data

THRESHOLD NEUTRAL PION PHOTOPRODUCTION ON THE PROTON AND THE CLOUDY BAG MODEL

1994 ◽  
Vol 09 (05) ◽  
pp. 399-409 ◽  
Author(s):  
A.N. TABACHENKO
Keyword(s):  
Cross Sections ◽  
Differential Cross ◽  
Electric Dipole ◽  
Neutral Pion ◽  
Chiral Symmetry Breaking ◽  
Additional Term ◽  
Pion Photoproduction ◽  
Differential Cross Sections ◽  
Neutral Pions ◽  
K Matrix

The energy dependence of the electric dipole amplitude, the total and differential cross-sections of the photoproduction of neutral pions off protons near threshold is given. The amplitude of process is a sum of the LET prediction and the additional term connected with the chiral symmetry breaking interaction. The simple K-matrix calculations are used to estimate the change in the electric dipole amplitude and the total and differential cross-sections between π0p and π+n thresholds.

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