STI Publications - View Publication Form #15291
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Publication Information
| Title | CLAS N* Excitation Results from Pion and Kaon Electroproduction | ||||
| Abstract | The study of the structure of excited nucleon $N^*$ states employing the electroproduction of exclusive reactions is an important avenue for exploring the nature of the non-perturbative strong interaction. The electrocouplings of $N^*$ states in the mass range below $W$=1.8~GeV have been determined from analyses of CLAS $\pi N$, $\eta N$, and $\pi \pi N$ data at four-momentum transfers $Q^2$ up to 5~GeV$^2$. This work has made it clear that consistent results from independent analyses of several exclusive channels with different couplings and non-resonant backgrounds but the same $N^*$ electroexcitation amplitudes, is essential to have confidence in the extracted results. In terms of hadronic couplings, many high-lying $N^*$ states preferentially decay through the $\pi \pi N$ channel, while couplings to $\pi N$ final states become rather small. The resonance parameters determined from $\pi N$ and $\pi \pi N$ electroproduction can be checked in independent studies of the $KY$ ($Y | ||||
| Author(s) | Daniel Carman | ||||
| Publication Date | May 2018 | ||||
| Document Type | Meeting, Journal Article, Proceedings | ||||
| 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 | Literature Review and Summary | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Meeting / Conference
| Meeting Name | NStar 2017 |
| Meeting Date | 8/20/2017 |
| Document Subtype | Invited Talk (proceedings) |
Journal Article
| Journal Name | Few-Body Systems |
| Refereed | Yes |
| Volume | 59 |
| Issue | 5 |
| Page(s) | 82 |
Proceedings
| Title | Proceedings of NSTAR 2017 |
| Editor(s) | |
| Publisher | Springer |
| Refereed | Yes |
| Page Number | 82 |
| Year | 2018 |
Attachments/Datasets/DOI Link
| Document(s) |
proc_n2017.pdf
(STI Document)
10.1007_s00601-018-1405-8.pdf
(Accepted Manuscript)
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| DOI Link | |
| Dataset(s) | (none) |
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