D. Kostyleva, X. -D. Xu, I. Mukha, L. Acosta, M. Bajzek, E. Casarejos, A. A. Ciemny, D. Cortina-Gil, W. Dominik, J. A. Dueñas, J. M. Espino, A. Estradé, F. Farinon, A. Fomichev, H. Geissel, J. Gómez-Camacho, A. Gorshkov, L. V. Grigorenko, Z. Janas, G. Kamiński, O. Kiselev, R. Knöbel, A. A. Korsheninnikov, S. Krupko, M. Kuich, N. Kurz, Yu. A. Litvinov, G. Marquinez-Durán, I. Martel, C. Mazzocchi, E. Yu. Nikolskii, C. Nociforo, A. K. Ordúz, M. Pfützner, S. Pietri, M. Pomorski, A. Prochazka, C. Rodríguez-Tajes, S. Rymzhanova, A. M. Sánchez-Benítez, C. Scheidenberger, H. Simon, B. Sitar, R. Slepnev, M. Stanoiu, P. Strmen, K. Sümmerer, I. Szarka, M. Takechi, Y. K. Tanaka, H. Weick, J. S. Winfield, P. J. Woods, M. V. Zhukov
{"title":"质子未结合核 $^{21}$Al 的观测与光谱学","authors":"D. Kostyleva, X. -D. Xu, I. Mukha, L. Acosta, M. Bajzek, E. Casarejos, A. A. Ciemny, D. Cortina-Gil, W. Dominik, J. A. Dueñas, J. M. Espino, A. Estradé, F. Farinon, A. Fomichev, H. Geissel, J. Gómez-Camacho, A. Gorshkov, L. V. Grigorenko, Z. Janas, G. Kamiński, O. Kiselev, R. Knöbel, A. A. Korsheninnikov, S. Krupko, M. Kuich, N. Kurz, Yu. A. Litvinov, G. Marquinez-Durán, I. Martel, C. Mazzocchi, E. Yu. Nikolskii, C. Nociforo, A. K. Ordúz, M. Pfützner, S. Pietri, M. Pomorski, A. Prochazka, C. Rodríguez-Tajes, S. Rymzhanova, A. M. Sánchez-Benítez, C. Scheidenberger, H. Simon, B. Sitar, R. Slepnev, M. Stanoiu, P. Strmen, K. Sümmerer, I. Szarka, M. Takechi, Y. K. Tanaka, H. Weick, J. S. Winfield, P. J. Woods, M. V. Zhukov","doi":"arxiv-2406.04771","DOIUrl":null,"url":null,"abstract":"We report on the observation of previously-unknown isotope $^{21}$Al, the\nfirst unbound aluminum isotope located beyond the proton dripline. The\n$^{21}$Al nucleus decays by one-proton (1p) emission, and its in-flight decays\nwere detected by tracking trajectories of all decay products with micro-strip\nsilicon detectors. The 1p-emission processes were studied by analyses of the\nmeasured angular correlations of decay products $^{20}$Mg+p. The 1p-decay\nenergies of ground and low-lying excited states of $^{21}$Al, its mass excess\nand proton separation energy value $S_p$=$-1.1(1)$ MeV were determined.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Observation and spectroscopy of proton-unbound nucleus $^{21}$Al\",\"authors\":\"D. Kostyleva, X. -D. Xu, I. Mukha, L. Acosta, M. Bajzek, E. Casarejos, A. A. Ciemny, D. Cortina-Gil, W. Dominik, J. A. Dueñas, J. M. Espino, A. Estradé, F. Farinon, A. Fomichev, H. Geissel, J. Gómez-Camacho, A. Gorshkov, L. V. Grigorenko, Z. Janas, G. Kamiński, O. Kiselev, R. Knöbel, A. A. Korsheninnikov, S. Krupko, M. Kuich, N. Kurz, Yu. A. Litvinov, G. Marquinez-Durán, I. Martel, C. Mazzocchi, E. Yu. Nikolskii, C. Nociforo, A. K. Ordúz, M. Pfützner, S. Pietri, M. Pomorski, A. Prochazka, C. Rodríguez-Tajes, S. Rymzhanova, A. M. Sánchez-Benítez, C. Scheidenberger, H. Simon, B. Sitar, R. Slepnev, M. Stanoiu, P. Strmen, K. Sümmerer, I. Szarka, M. Takechi, Y. K. Tanaka, H. Weick, J. S. Winfield, P. J. Woods, M. V. Zhukov\",\"doi\":\"arxiv-2406.04771\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We report on the observation of previously-unknown isotope $^{21}$Al, the\\nfirst unbound aluminum isotope located beyond the proton dripline. The\\n$^{21}$Al nucleus decays by one-proton (1p) emission, and its in-flight decays\\nwere detected by tracking trajectories of all decay products with micro-strip\\nsilicon detectors. The 1p-emission processes were studied by analyses of the\\nmeasured angular correlations of decay products $^{20}$Mg+p. The 1p-decay\\nenergies of ground and low-lying excited states of $^{21}$Al, its mass excess\\nand proton separation energy value $S_p$=$-1.1(1)$ MeV were determined.\",\"PeriodicalId\":501206,\"journal\":{\"name\":\"arXiv - PHYS - Nuclear Experiment\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-06-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - Nuclear Experiment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2406.04771\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - Nuclear Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2406.04771","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Observation and spectroscopy of proton-unbound nucleus $^{21}$Al
We report on the observation of previously-unknown isotope $^{21}$Al, the
first unbound aluminum isotope located beyond the proton dripline. The
$^{21}$Al nucleus decays by one-proton (1p) emission, and its in-flight decays
were detected by tracking trajectories of all decay products with micro-strip
silicon detectors. The 1p-emission processes were studied by analyses of the
measured angular correlations of decay products $^{20}$Mg+p. The 1p-decay
energies of ground and low-lying excited states of $^{21}$Al, its mass excess
and proton separation energy value $S_p$=$-1.1(1)$ MeV were determined.
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