Cover Image

Decay study of the most neutron-deficient Zn isotopes with the Warsaw Optical TPC detector

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Kubiela, A., Ahn, D. -S., Baba, H., Bezbakh, A., Ciemny, A. A., Dominik, W., Fukuda, N., Giska, A., Grzywacz, R., Guadilla, V., Ichikawa, Y., Janas, Z., Janiak, Ł., Kaminski, G., Kawata, K., Kubo, T., Madurga, M., Mazzocchi, C., Nishibata, H., Pomorski, M., Shimizu, Y., Sokołowska, N., Suzuki, D., Suzuki, H., Szymkiewicz, P., Swiercz, A., Tajima, M., Takamine, A., Takeda, H., Takeuchi, Y., Thornsberry, C. R., Ueno, H., Yamazaki, H., Yokoyama, R., Yoshida, K., Pfützner, M.
Format:	Preprint
Published:	2025
Subjects:	Nuclear Experiment
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

_version_	1866908566387949568
author	Kubiela, A. Ahn, D. -S. Baba, H. Bezbakh, A. Ciemny, A. A. Dominik, W. Fukuda, N. Giska, A. Grzywacz, R. Guadilla, V. Ichikawa, Y. Janas, Z. Janiak, Ł. Kaminski, G. Kawata, K. Kubo, T. Madurga, M. Mazzocchi, C. Nishibata, H. Pomorski, M. Shimizu, Y. Sokołowska, N. Suzuki, D. Suzuki, H. Szymkiewicz, P. Swiercz, A. Tajima, M. Takamine, A. Takeda, H. Takeuchi, Y. Thornsberry, C. R. Ueno, H. Yamazaki, H. Yokoyama, R. Yoshida, K. Pfützner, M.
author_facet	Kubiela, A. Ahn, D. -S. Baba, H. Bezbakh, A. Ciemny, A. A. Dominik, W. Fukuda, N. Giska, A. Grzywacz, R. Guadilla, V. Ichikawa, Y. Janas, Z. Janiak, Ł. Kaminski, G. Kawata, K. Kubo, T. Madurga, M. Mazzocchi, C. Nishibata, H. Pomorski, M. Shimizu, Y. Sokołowska, N. Suzuki, D. Suzuki, H. Szymkiewicz, P. Swiercz, A. Tajima, M. Takamine, A. Takeda, H. Takeuchi, Y. Thornsberry, C. R. Ueno, H. Yamazaki, H. Yokoyama, R. Yoshida, K. Pfützner, M.
contents	Results of decay studies of nuclei in the vicinity of 54Zn, which is the most neutron-deficient isotope of zinc and undergoes ground-state two-proton radioactivity (2p), are presented. The measurements were performed with a gaseous time projection chamber with optical readout which allowed us to record tracks of protons emitted in the decays. A new method of data analysis was used to reconstruct energies and emission angles of low-energy protons that were stopped within the active volume of the chamber. Half-lives and branching ratios for \b{eta}-delayed proton emission channels were determined for 56Zn, 55Zn, and 55Cu. The \b{eta}-delayed emission of two protons for 55Zn was observed for the first time. Five events of 2p radioactivity of 54Zn were detected and reconstructed. The distribution of the opening angle between momenta of the two protons is consistent with the findings published in [Ascher et al. PRL 107, 102502 (2011)]. The combination of all results suggests a flat angular distribution, in contrast to the one measured for 45Fe.
format	Preprint
id	arxiv_https___arxiv_org_abs_2509_25061
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Decay study of the most neutron-deficient Zn isotopes with the Warsaw Optical TPC detector Kubiela, A. Ahn, D. -S. Baba, H. Bezbakh, A. Ciemny, A. A. Dominik, W. Fukuda, N. Giska, A. Grzywacz, R. Guadilla, V. Ichikawa, Y. Janas, Z. Janiak, Ł. Kaminski, G. Kawata, K. Kubo, T. Madurga, M. Mazzocchi, C. Nishibata, H. Pomorski, M. Shimizu, Y. Sokołowska, N. Suzuki, D. Suzuki, H. Szymkiewicz, P. Swiercz, A. Tajima, M. Takamine, A. Takeda, H. Takeuchi, Y. Thornsberry, C. R. Ueno, H. Yamazaki, H. Yokoyama, R. Yoshida, K. Pfützner, M. Nuclear Experiment Results of decay studies of nuclei in the vicinity of 54Zn, which is the most neutron-deficient isotope of zinc and undergoes ground-state two-proton radioactivity (2p), are presented. The measurements were performed with a gaseous time projection chamber with optical readout which allowed us to record tracks of protons emitted in the decays. A new method of data analysis was used to reconstruct energies and emission angles of low-energy protons that were stopped within the active volume of the chamber. Half-lives and branching ratios for \b{eta}-delayed proton emission channels were determined for 56Zn, 55Zn, and 55Cu. The \b{eta}-delayed emission of two protons for 55Zn was observed for the first time. Five events of 2p radioactivity of 54Zn were detected and reconstructed. The distribution of the opening angle between momenta of the two protons is consistent with the findings published in [Ascher et al. PRL 107, 102502 (2011)]. The combination of all results suggests a flat angular distribution, in contrast to the one measured for 45Fe.
title	Decay study of the most neutron-deficient Zn isotopes with the Warsaw Optical TPC detector
topic	Nuclear Experiment
url	https://arxiv.org/abs/2509.25061