Publications
Publication Information
| Title | New Baryon State N'(1720)3/2+ from the CLAS pi^+pi^--p Photo- and Electroproduction Data |
| Authors | Viktor Mokeev |
| JLAB number | JLAB-PHY-21-3617 |
| LANL number | (None) |
| Other number | DOE/OR/23177-6181 |
| Document Type(s) | (Meeting) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Meeting Contributed Talk compiled for MESON 2021 (16th International Workshop on Meson Physics) | |
| Publication Abstract: | Combined studies of exclusive meson photo- and electroproduction have extended the capabilities in the search for new excited states of the nucleon, the so called ?missing? resonances. New excited state of the nucleon, N?(1720)3/2+ has been observed in the combined studies of the pi^+pi^-p photo- and electroproduction off protons data measured with the CLAS detector at Jlab. The results on the new baryon state observation will be presented and discussed in the talk. A successful description of the pi^+pi^-p photo- and electroproduction data achieved with independent from photon virtualities (Q^2) mass, total and partial hadronic decay widths of N?(1720)3/2^+ state offers a strong evidence for the existence of this new resonance. Currently, N?(1720)3/2^+ resonance is the only observed new baryon state for which the results on Q^2-evolution of the electroexcitation amplitudes have become available. They offer an insight into the ?missing? resonance structure for the first time. Future analyses of the N?(1720)3/2^+ electroexcitation amplitudes will shed light on the particular structural features of ?missing? resonances which made their observation so challenging for decades |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | |
| DOI: | |
| Accepted Manuscript: | |
| Supporting Documents: | |
| Supporting Datasets: | |