Experiments with the High Resolution Kaon Spectrometer at JLab Hall C and the new spectroscopy of 12B-Λ hypernuclei

Scientific paper - Original scientific paper

• Author: L. Tang
• Author: ...
• Author: Tomislav Ševa
• Author: ...
• Author: Darko Androić
• Author: ...
• Author: Miroslav Furić
• Author: ...
• Author: Tomislav Petković; MBZ: 36555
• Author: ...
• Author: Neven Šimičević; MBZ: 118310
• Author: ...
• Author: L. Zhu
• Collaboration: HKS (JLab E05-115 and E01-011) Collaborations
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

Since the pioneering experiment E89-009 studying hypernuclear spectroscopy using the (e, e’K+) reaction was completed, two additional experiments, E01-011 and E05-115, were performed at Jefferson Lab. These later experiments used a modified experimental design, the "tilt method", to dramatically suppress the large electromagnetic background, and allowed for a substantial increase in luminosity. Additionally, a new kaon spectrometer, HKS (E01-011), a new electron spectrometer, HES, and a new splitting magnet (E05-115) were added to produce new data sets of precision, high-resolution hypernuclear spectroscopy. All three experiments obtained a spectrum for 12B-Λ, which is the most characteristic p-shell hypernucleus and is commonly used for calibration. Independent analyses of these different experiments demonstrate excellent consistency and provide the clearest level structure to date of this hypernucleus as produced by the (e, e’K+) reaction. This paper presents details of these experiments, and the extraction and analysis of the observed 12B-Λ spectrum.

• Keywords (english): 12B-Lambda spectroscopy; (e, e’K+) reaction; JLab Hall C; tilt method; HKS-HES setup; sub-Mev resolution; p-shell hypernucleus; level structure of 12B-Lambda
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review C - Nuclear Physics
• Numbering: vol. 90, no. 3, 34320
• p-ISSN: 0556-2813
• e-ISSN: 1089-490X
• DOI: https://doi.org/10.1103/PhysRevC.90.034320
• URN:NBN: urn:nbn:hr:217:907417
• Publication: 2014
• Project: Number: 119-0982887-1006; Title (croatian): Istraživanje hadronskih sustava upotrebom relativističkih projektila; Leader: Mirko Planinić; Jurisdiction: Croatia; Funding stream: ZP
• Document URL: http://link.aps.org/doi/10.1103/PhysRevC.90.034320
• Type of resource: Text
• Access conditions: Open access
• Public note: Copyright (2014) by the American Physical Society. Received 16 June 2014; published 25 September 2014.
• Created on: 2019-12-28 20:08:11