Publications
Publication Information
| Title | CLAS12 First Experiments and Hadron Structure |
| Authors | Daniel Carman |
| JLAB number | JLAB-PHY-19-3169 |
| LANL number | (None) |
| Other number | DOE/OR/23177-6255 |
| Document Type(s) | (Meeting) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Meeting Invited Talk compiled for APS April 2019 | |
| Publication Abstract: | The new CLAS12 large acceptance spectrometer was recently installed in Hall B as part of the 12 GeV upgrade project at Jefferson Laboratory that served to double the maximum electron beam energy of the accelerator. The approved CLAS12 experimental physics program spans a broad scientific scope designed to address fundamental and critical issues in nuclear physics such as detailed spectroscopy of the excited baryon spectrum including a search for hybrid baryons where the glue serves as an active structural component, elucidation of the role of gluons in hadronic structure, studies of the implications of short range forces acting in nucleons and nuclei, and detailed investigations that serve to reveal the structure of ground and excited states including 3-D imaging of the ground state nucleons and exploration of the N --> N* form factors in the transition from the regimes of confinement to perturbative QCD. These studies will address questions on the nature of the mass of hadrons, quark-gluon confinement, and how such a diversity of hadrons emerges from QCD. The commissioning of the CLAS12 spectrometer was completed during an Engineering Run that took place in Dec. 2017 and Jan. 2018. This was followed by the first physics production running periods spanning 23 weeks in the spring and fall of 2018. This talk will review the initial CLAS12 physics program and highlight the current status of the ongoing physics analyses. *The Southeastern Universities Research Association (SURA) operates the Thomas Jefferson National Accelerator Facility for the United States Department of Energy under Contract No. DE-AC05-84ER40150. This material is based upon work supported by the US Department of Energy, Office of Science, Office of Nuclear Physics under Contract No DE-AC05-06OR23177. |
| Experiment Numbers: | |
| Group: | Hall B |
| Document: | pptx |
| DOI: | |
| Accepted Manuscript: | |
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