scholarly journals Generalized isobar model formalism

1975 ◽  
Vol 11 (11) ◽  
pp. 3165-3182 ◽  
Author(s):  
David J. Herndon ◽  
Paul Söding ◽  
Roger J. Cashmore
Keyword(s):  
Isobar Model ◽  
Model Formalism

scholarly journals A Conceptual Probabilistic Framework for Annotation Aggregation of Citizen Science Data

Mathematics ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 875
Author(s):  
Jesus Cerquides ◽  
Mehmet Oğuz Mülâyim ◽  
Jerónimo Hernández-González ◽  
Amudha Ravi Shankar ◽  
Jose Luis Fernandez-Marquez
Keyword(s):  
Data Quality ◽  
Citizen Science ◽  
Graphical Model ◽  
Real Life ◽  
Scientific Journals ◽  
Probabilistic Framework ◽  
Science Data ◽  
Label Aggregation ◽  
Evaluation Of Data ◽  
Model Formalism

Over the last decade, hundreds of thousands of volunteers have contributed to science by collecting or analyzing data. This public participation in science, also known as citizen science, has contributed to significant discoveries and led to publications in major scientific journals. However, little attention has been paid to data quality issues. In this work we argue that being able to determine the accuracy of data obtained by crowdsourcing is a fundamental question and we point out that, for many real-life scenarios, mathematical tools and processes for the evaluation of data quality are missing. We propose a probabilistic methodology for the evaluation of the accuracy of labeling data obtained by crowdsourcing in citizen science. The methodology builds on an abstract probabilistic graphical model formalism, which is shown to generalize some already existing label aggregation models. We show how to make practical use of the methodology through a comparison of data obtained from different citizen science communities analyzing the earthquake that took place in Albania in 2019.

Experimental results on pion production compared with predictions of the isobar model

1959 ◽  
Vol 14 (1) ◽  
pp. 211-224 ◽  
Author(s):  
V. Alles-Borelli ◽  
S. Bergia ◽  
E. Perez Ferreira ◽  
P. Waloschek
Keyword(s):  
Pion Production ◽  
Experimental Results ◽  
Isobar Model

scholarly journals Isobar model analysis ofπ0ηphotoproduction on protons

2010 ◽  
Vol 82 (3) ◽  
Author(s):  
A. Fix ◽  
V. L. Kashevarov ◽  
A. Lee ◽  
M. Ostrick
Keyword(s):  
Model Analysis ◽  
Isobar Model

scholarly journals ELECTROMAGNETIC TRANSITIONS WITH EFFECTIVE OPERATORS

2005 ◽  
Vol 14 (01) ◽  
pp. 95-103 ◽  
Author(s):  
IONEL STETCU ◽  
BRUCE R. BARRETT ◽  
PETR NAVRÁTIL ◽  
CALVIN W. JOHNSON
Keyword(s):  
Effective Interaction ◽  
The Other ◽  
Core Shell ◽  
Body System ◽  
Cluster Approximation ◽  
Expectation Values ◽  
Model Spaces ◽  
Reduced Space ◽  
Model Formalism ◽  
Effective Operators

In the no-core shell model formalism we compute effective one- and two-body operators, using the Lee–Suzuki procedure within the two-body cluster approximation. We evaluate the validity of the latter through calculations in reduced model spaces. In particular, we test the results for the two-body system and find that indeed the effective operators in the reduced space reproduce the expectation values or transition strengths computed in the full space. On the other hand, the renormalization for operators in the case of 6Li is very weak, suggesting the need for higher-body clusters in computing the effective interaction.

A study of the doorway isobar model for pions

1976 ◽  
Author(s):  
L. S. Kisslinger ◽  
A. Saharia
Keyword(s):  
Isobar Model

scholarly journals Hadronic deuteron polarizability contribution to the Lamb shift in muonic deuterium

2016 ◽  
Vol 31 (18) ◽  
pp. 1650104 ◽  
Author(s):  
A. V. Eskin ◽  
R. N. Faustov ◽  
A. P. Martynenko ◽  
F. A. Martynenko
Keyword(s):  
Experimental Data ◽  
Lamb Shift ◽  
Structure Functions ◽  
Deuteron Scattering ◽  
Isobar Model ◽  
Polarizability Contribution

Hadronic deuteron polarizability correction to the Lamb shift of muonic deuterium is calculated on the basis of unitary isobar model and modern experimental data on the structure functions of deep inelastic lepton–deuteron scattering and their parametrizations in the resonance and nonresonance regions.

On the isobar model for pion photoproduction

1966 ◽  
Vol 23 (6) ◽  
pp. 378-380
Author(s):  
I. Raszillier
Keyword(s):  
Pion Photoproduction ◽  
Isobar Model
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