New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity of <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi>Sn</mi></mrow><mprescripts></mprescripts><none></none><mrow><mn>100</mn></mrow></mmultiscripts></mrow></math></span>

I. Čeliković; M. Lewitowicz; R. Gernhäuser; R. Krücken; S. Nishimura; H. Sakurai; D.S. Ahn; H. Baba; B. Blank; A. Blazhev; P. Boutachkov; F. Browne; G. de France; P. Doornenbal; T. Faestermann; Y. Fang; N. Fukuda; J. Giovinazzo; N. Goel; M. Górska; S. Ilieva; N. Inabe; T. Isobe; A. Jungclaus; D. Kameda; Y.-K. Kim; Y. K. Kwon; I. Kojouharov; T. Kubo; N. Kurz; G. Lorusso; D. Lubos; K. Moschner; D. Murai; I. Nishizuka; J. Park; Z. Patel; M. Rajabali; S. Rice; H. Schaffner; Y. Shimizu; L. Sinclair; P.-A. Söderström; K. Steiger; T. Sumikama; H. Suzuki; H. Takeda; Z. Wang; H. Watanabe; J. Wu; Z. Xu

doi:10.1103/PhysRevLett.116.162501

New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity of ${}^{100}{Sn}$

I. Čeliković^1,2,*, M. Lewitowicz¹, R. Gernhäuser³, R. Krücken^4,5, S. Nishimura⁶, H. Sakurai⁷, D.S. Ahn⁶, H. Baba⁶, B. Blank⁸ et al.

A. Blazhev⁹, P. Boutachkov¹⁰, F. Browne^6,11, G. de France¹, P. Doornenbal⁶, T. Faestermann^3,12, Y. Fang¹³, N. Fukuda⁶, J. Giovinazzo⁸, N. Goel¹⁰, M. Górska¹⁰, S. Ilieva¹⁴, N. Inabe⁶, T. Isobe⁶, A. Jungclaus¹⁵, D. Kameda⁶, Y.-K. Kim^16,17, Y. K. Kwon¹⁶, I. Kojouharov¹⁰, T. Kubo⁶, N. Kurz¹⁰, G. Lorusso⁶, D. Lubos^3,6,12, K. Moschner⁹, D. Murai⁶, I. Nishizuka¹⁸, J. Park^4,5, Z. Patel^6,19, M. Rajabali⁴, S. Rice^6,19, H. Schaffner¹⁰, Y. Shimizu⁶, L. Sinclair^6,20, P.-A. Söderström⁶, K. Steiger³, T. Sumikama¹⁸, H. Suzuki⁶, H. Takeda⁶, Z. Wang⁴, H. Watanabe²¹, J. Wu^6,22, and Z. Xu⁷

¹Grand Accélérateur National d’Ions Lourds (GANIL), CEA/DRF-CNRS/IN2P3, Boulevard H. Becquerel, 14076 Caen, France
²“Vinča” Institute of Nuclear Sciences, University of Belgrade, 11000 Belgrade, Serbia
³Physik Department E12, Technische Universität München, D-85748 Garching, Germany
⁴TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
⁵Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
⁶RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
⁷University of Tokyo, 7-3-1 Hongo Bunkyo, Tokyo 113-0033, Japan
⁸CEN Bordeaux-Gradignan Le Haut-Vigneau, F-33175 Gradignan Cedex, France
⁹Institute of Nuclear Physics, University of Cologne, D-50937 Cologne, Germany
¹⁰GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
¹¹School of Computing, Engineering and Mathematics, University of Brighton, Brighton BN2 4GJ, United Kingdom
¹²Excellence Cluster Universe, Technische Universität München, D-85748 Garching, Germany
¹³Osaka University, Machikaneyama-machi 1-1, Osaka 560-0043 Toyonaka, Japan
¹⁴Technische Universität Darmstadt, D-64289 Darmstadt, Germany
¹⁵Instituto de Estructura de la Materia, IEM-CSIC, E-28006 Madrid, Spain
¹⁶Rare Isotope Science Project, Institute for Basic Science, Daejeon 305-811, Republic of Korea
¹⁷Department of Nuclear Engineering, Hanyang University, Seoul 133-791, Republic of Korea
¹⁸Department of Physics, Faculty of Science, Tohoku University, Sendai 980-0845, Japan
¹⁹Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
²⁰University of York, York YO10 5DD, United Kingdom
²¹Beihang University, Beijing 100191, China
²²Department of Physics, Peking University, Beijing 100871, China

^*Corresponding author. icelikovic@vinca.rs

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Phys. Rev. Lett. 116, 162501 – Published 20 April, 2016

DOI: https://doi.org/10.1103/PhysRevLett.116.162501

Abstract

Several new isotopes, ${}^{96}{In}$ , ${}^{94}{Cd}$ , ${}^{92}{Ag}$ , and ${}^{90}{Pd}$ , have been identified at the RIKEN Nishina Center. The study of proton drip-line nuclei in the vicinity of ${}^{100}{Sn}$ led to the discovery of new proton emitters ${}^{93}{Ag}$ and ${}^{89}{Rh}$ with half-lives in the submicrosecond range. The systematics of the half-lives of odd- $Z$ nuclei with $T_{z} = - 1 / 2$ toward ${}^{99}{Sn}$ shows a stabilizing effect of the $Z = 50$ shell closure. Production cross sections for nuclei in the vicinity of ${}^{100}{Sn}$ measured at different energies and target thicknesses were compared to the cross sections calculated by epax taking into account contributions of secondary reactions in the primary target.

Physical Review Letters

New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity of ${}^{100}{Sn}$

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New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity of Sn100

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New Isotopes and Proton Emitters–Crossing the Drip Line in the Vicinity of ${}^{100}{Sn}$