Search

Your search keyword '"Muneem, A."' showing total 4 results
Start Over Author "Muneem, A." Publisher edp sciences
4 results on '"Muneem, A."'

1. Study of light hypernuclei in Europe: The hypertriton and nnΛ puzzles

Author

Rappold C., Achenbach P., Alibrahim Alfaki H., Amjad F., Armstrong M., Behr K.-H., Benlliure J., Brencic Z., Dickel T., Drozd V., Dubey S., Ekawa H., Escrig S., Feijoo-Fontan M., Fujioka H., Gao Y., Geissel H., Goldenbaum F., Graña Gonzalez A., Haettner E., Harakeh M. N., He Y., Heggen H., Hornung C., Hubbard N., Itahashi K., Iwasaki M., Kalantar-Nayestanaki N., Kasagi A., Kavatsyuk M., Kazantseva E., Khreptak A., Kindler B., Knoebel R., Kollmus H., Kostyleva D., Kraft-Bermuth S., Kurz N., Liu E., Lommel B., Metag V., Minami S., Morrissey D.J., Moskal P., Mukha I., Muneem A., Nakagawa M., Nakazawa K., Nociforo C., Ong H.J., Pietri S., Pochodzalla J., Purushothaman S., Rocco E., Rodríguez-Sánchez J.L., Roy P., Ruber R., Saito T.R., Schadmand S., Scheidenberger C., Schwarz P., Sekiya R., Serdyuk V., Skurzok M., Streicher B., Suzuki K., Szczepanczyk B., Tanaka Y. K., Tang X., Tortorelli N., Vencelj M., Wang H., Weber T., Weick H., Will M., Wimmer K., Yamamoto A., Yanai A., Yoshida J., and Zhao J.

Subjects
Physics, QC1-999
Abstract

The current understanding of light hypernuclei, which are sub-atomic nuclei with strangeness, is being challenged and studied in detail by several European research groups and collaborations. In recent years, studies of hypernuclei using high-energy heavy ion beams have reported unexpected results on the three-body hypernuclear state 3ΛH, named the hypertriton. For some time, reports of a shorter lifetime and larger binding energy than what was previously accepted have created a puzzling situation for its theoretical description; this is known as the "hypertriton puzzle". With the inclusion of the most recent experimental measurements, the current status of the hypertriton puzzle is evolving. Additionally, the possible neutral bound state of a Λ hyperon with two neutrons, nnΛ, has raised questions about our understanding of the formation of light hypernuclei either in bound or resonance states. These results have initiated several ongoing experimental programs all over the world to study these three-body hypernuclear states precisely. We are studying these light hypernuclear states by employing heavy ion beams at 2AGeV on a fixed carbon target with the WASA detector system and the Fragment Separator (FRS) at GSI. The WASA-FRS experimental campaign was performed during the first quarter of 2022, and this paper presents a short overview of the campaign and how it seeks to tackle the hypertriton and nnΛ puzzles. Data analysis is ongoing, and several preliminary results will be reported.

Published
2023
Full Text
View/download PDF

2. Unique approach for precise determination of binding energies of hypernuclei with nuclear emulsion and machine learning

Author

Nakagawa Manami, Kasagi Ayumi, Liu Enqiang, Ekawa Hiroyuki, Yoshida Junya, Dou Wenbo, He Yan, Muneem Abdul, Nakazawa Kazuma, Rappold Christophe, Saito Nami, Saito Takehiko R., Sugimoto Shohei, Taki Masato, Tanaka Yoshiki K., Wang He, Gao Yiming, Yanai Ayari, and Yoshimoto Masahiro

Subjects
Physics, QC1-999
Abstract

Hypertriton is the lightest hypernucleus and a benchmark in hypernuclear physics. However, it has recently been suggested that its lifetime and binding energy values may differ from the established values. To solve this puzzle, it is necessary to measure both values with a higher precision. For the precise measurement of the binding energy, we are aiming at developing a novel technique to measure the hypertriton binding energy with unprecedented accuracy by combining nuclear emulsion data and machine learning techniques. The analysis will be based on the J-PARC E07 nuclear emulsion data. Furthermore, a machine-learning model is being developed to identify other single and double-strangeness hypernuclei.

Published
2022
Full Text
View/download PDF

3. Unique approach for precise determination of binding energies of hypernuclei with nuclear emulsion and machine learning

Author

Nakagawa, M., Kasagi, A., Liu, E., Ekawa, H., Joshida, J., Dou, W., He, Y., Muneem, A., Nakazawa, K., Rappold, Christophe, Saito, N., Saito, T.R., Sugimoto. S., Taki, M., Tanaka, Y.K., Wang, H., Gao, Y., Yanai, A., Yoshimoto, M., Nakagawa, M., Kasagi, A., Liu, E., Ekawa, H., Joshida, J., Dou, W., He, Y., Muneem, A., Nakazawa, K., Rappold, Christophe, Saito, N., Saito, T.R., Sugimoto. S., Taki, M., Tanaka, Y.K., Wang, H., Gao, Y., Yanai, A., and Yoshimoto, M.

Abstract

Hypertriton is the lightest hypernucleus and a benchmark in hypernuclear physics. However, it has recently been suggested that its lifetime and binding energy values may differ from the established values. To solve this puzzle, it is necessary to measure both values with a higher precision. For the precise measurement of the binding energy, we are aiming at developing a novel technique to measure the hypertriton binding energy with unprecedented accuracy by combining nuclear emulsion data and machine learning techniques. The analysis will be based on the J-PARC E07 nuclear emulsion data. Furthermore, a machine-learning model is being developed to identify other single and double-strangeness hypernuclei

Published
2022

4. Unique approach for precise determination of binding energies of hypernuclei with nuclear emulsion and machine learning

Author

Manami Nakagawa, Ayumi Kasagi, Enqiang Liu, Hiroyuki Ekawa, Junya Yoshida, Wenbo Dou, Yan He, Abdul Muneem, Kazuma Nakazawa, Christophe Rappold, Nami Saito, Takehiko R. Saito, Shohei Sugimoto, Masato Taki, Yoshiki K. Tanaka, He Wang, Yiming Gao, Ayari Yanai, and Masahiro Yoshimoto

Abstract

Hypertriton is the lightest hypernucleus and a benchmark in hypernuclear physics. However, it has recently been suggested that its lifetime and binding energy values may differ from the established values. To solve this puzzle, it is necessary to measure both values with a higher precision. For the precise measurement of the binding energy, we are aiming at developing a novel technique to measure the hypertriton binding energy with unprecedented accuracy by combining nuclear emulsion data and machine learning techniques. The analysis will be based on the J-PARC E07 nuclear emulsion data. Furthermore, a machine-learning model is being developed to identify other single and double-strangeness hypernuclei.

Published
2022

Catalog

Books, media, physical & digital resources
See catalog results