Electroproduction of $Λ$(1405)

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The electroproduction of K{sup +} {Lambda}(1405) was studied by analyzing the E1F data set collected in Hall B at Jefferson Lab. The analysis utilized the decay channel {Sigma}{sup +} {pi}{sup -} of the {Lambda}(1405) and p{pi}{sup 0} of the {Sigma}{sup +}. 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{sup 2}, and does not ... continued below

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199-202

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Haiyun Lu, Reinhard Schumacher, Brian Raue, Marianna Gabrielyan April 1, 2012.

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The electroproduction of K{sup +} {Lambda}(1405) was studied by analyzing the E1F data set collected in Hall B at Jefferson Lab. The analysis utilized the decay channel {Sigma}{sup +} {pi}{sup -} of the {Lambda}(1405) and p{pi}{sup 0} of the {Sigma}{sup +}. 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{sup 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.

Physical Description

199-202

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  • Journal Name: AIP Conf. Proc.; Journal Volume: 1432; Conference: NSTAR 2011, 17-20 May 2011, Newport News, Virginia

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  • Report No.: JLAB-PHY-11-1360
  • Report No.: DOE/OR/23177-1735
  • Report No.: arXiv:1108.1809
  • Grant Number: AC05-06OR23177
  • DOI: 10.1063/1.3701212 | External Link
  • Office of Scientific & Technical Information Report Number: 1038589
  • Archival Resource Key: ark:/67531/metadc829598

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • April 1, 2012

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  • May 19, 2016, 3:16 p.m.

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  • Aug. 3, 2016, 3:15 p.m.

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Haiyun Lu, Reinhard Schumacher, Brian Raue, Marianna Gabrielyan. Electroproduction of $Λ$(1405), article, April 1, 2012; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc829598/: accessed June 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.