STI Publications - View Publication Form #14758
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Publication Information
| Title | Beam Spin Asymmetry Measurements for Two Pion Photoproduction at CLAS | ||||
| Abstract | The overarching goal of this analysis, and many like it, is to develop our understanding of the strong force interactions within the nucleon by examining the nature of their excitation spectra. As the resonances of these spectra have very short lifetimes ( tau = 1x10^-23 s) and often have very similar masses, it is often impossible to directly observe resonances in the excitation spectra of nucleons. Polarization observables allow us to study the resonances by looking at how they affect the spin state of final state particles. The beam asymmetry is a polarization observable that allows us to detect the sensitivity of these resonances, and other transition mechanisms, to the electric vector orientation of incident photons. Presented in this thesis are first measurements of the beam asymmetries in the resonant region for the reaction channel pgamma p --> p pi^+ pi^- focusing on the intermediate mesonic states rho^0 and f^0, and the final state pions. The analysis used data from th | ||||
| Author(s) | Mark Anderson | ||||
| Publication Date | September 2015 | ||||
| Document Type | Thesis | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall B | ||||
| Funding Source | Nuclear Physics (NP) | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | Yes | ||||
| Experiment Number(s) |
E94-109
E98-109
E99-013
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| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Thesis
| Thesis Type | PhD |
| Advisor | Institution |
| 1. Volker Burkert | JLab |
Attachments/Datasets/DOI Link
| Document(s) |
Anderson_thesis.pdf
(STI Document)
|
| Dataset(s) | (none) |
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