STI Publications - View Publication #10718

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Publication Information
Title Electroproduction of $Lambda$(1405)
Abstract Abstract: The electroproduction of $K^+ \Lambda$ (1405) was studied by analyzing the E1F data set collected in Hall B at Jefferson Lab. The analysis utilized the decay channel $\Sigma^+ \pi^-$ of the $\Lambda$ (1405) and $p \pi^0$ of the $\Sigma^+$. Simulations of background, $\Lambda$ (1405) and $\Lambda$ (1520) production according to PDG values were performed by using standard CLAS analysis tools adapted for the E1F run. Fits of the acceptance-corrected simulations were made to the acceptance-corrected data to determine contributions from signal and background processes. The line shape of $\Lambda$ (1405) varies with the four momentum transfer, $Q^2$, and does not match the line shape based on PDG resonance parameters. It corresponds approximately to predictions of a recent two-pole meson-baryon picture of this state.
Author(s) Haiyun Lu, Reinhard Schumacher, Brian Raue, Marianna Gabrielyan
Publication Date April 2012
Document Type Meeting, Proceedings
Primary Institution Carnegie Mellon University , Pittsburgh, PA
Affiliation Exp Nuclear Physics / Experimental Halls / Hall B
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-PHY-11-1360 OSTI Number: 1038589
LANL Number: arXiv:1108.1809 Other Number: DOE/OR/23177-1735
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Meeting / Conference
Meeting Name NSTAR 2011
Meeting Date 5/17/2011
Document Subtype Contributed Talk
Proceedings
Title The 8th International Workshop on the Physics of Excited Nucleons: NSTAR 11
Editor(s) Volker Burkert, Mark Jones, Michael Pennington, David Richards
Publisher AIP
Refereed Yes
Page Number 199-202
Year 2012
Attachments/Datasets/DOI Link
Document(s)
JLAB-PHY-11-1360.pdf (STI Document)
DOI Link
Dataset(s) (none)
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