Margaryan, A. et al. (2019) Decay pion spectroscopy: a new approach. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 935, pp. 40-50. (doi: 10.1016/j.nima.2019.04.063)
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Abstract
We propose a new experiment for decay pion spectroscopy of light hypernuclei at electron- and proton-beam facilities, using the recoil distance technique for identification of produced hypernuclei and a magnetic spectrometer for precise measurement of the decay pion momentum. Low-pressure MWPCs are advocated for low-energy recoil detection as they provide position and time information and are highly insensitive to gamma-ray and electron background. The position and timing characteristics of such a recoil detector were studied using∼5 MeV α-particles. By using the present proposed approach the rate of the detected hypernuclei can be increased by one-to-two orders of magnitude compared to a recent experiment carried out at the MAMI electron accelerator in Mainz. The possibility of realizing a high luminosity decay pion spectroscopy experiment with proton beams is also discussed.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Livingston, Dr Kenneth and Montgomery, Dr Rachel and Annand, Dr John |
Authors: | Margaryan, A., Ajvazyan, R., Grigoryan, N., Kakoyan, V., Khachatryan, V., Vardanyan, H., Zhamkochyan, S., Achenbach, P., Pochodzalla, J., Nakamura, S.N., Nagao, S., Toyama, Y., Annand, J.R.M., Livingston, K., and Montgomery, R. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment |
Publisher: | Elsevier |
ISSN: | 0168-9002 |
ISSN (Online): | 1872-9576 |
Published Online: | 06 May 2019 |
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