A new approach for deducing rms proton radii from charge-changing reactions of neutron-rich nuclei and the reaction-target dependence

Jichao Zhang ¹Baohua Sun ¹Isao Tanihata ²Rituparna Kanungo ³Christoph Scheidenberger ⁴Satoru Terashima ¹Feng Wang ¹Frederic Ameil ⁵Joel Atkinson ⁶Yassid Ayyad ⁷Soumya Bagchi ⁸Dolores Cortina-Gil ⁷Iris Dillmann ⁹Alfredo Estradé ¹⁰Alexey Evdokimov ⁵Fabio Farinon ⁵Hans Geissel ⁹Giulia Guastalla ⁵Rudolf Janik ¹¹Satbir Kaur ¹²Ronja Kn?bel ⁵Jan Kurcewicz ⁵Yury Litvinov ⁵Michele Marta ⁵Magdalena Mostazo ⁷Ivan Mukha ⁵Chiara Nociforo ⁵Hooi Jin Ong ¹³Stephane Pietri ⁵Andrej Prochazka ⁵Branislav Sitar ¹¹Peter Strmen ¹¹Maya Takechi ⁵Junki Tanaka ¹³Jossitt Vargas ⁷Helmut Weick ⁵John Stuart Winfield⁵

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作者信息

1. School of Physics,Beihang University,Beijing 100191,China
2. School of Physics,Beihang University,Beijing 100191,China;Research Center for Nuclear Physics(RCNP),Osaka University,Osaka 567-0047,Japan
3. Astronomy and Physics Department,Saint Mary's University,Halifax B3H 3C3,Canada;TRIUMF,Vancouver V6T 4A3,Canada
4. GSI Helmholtzzentrum für Schwerionenforschung,Darmstadt D-64291,Germany;Justus-Liebig University,Gieβn 35392,Germany;Helmholtz Research Academy Hesse for FAIR(HFHF),GSI Helmholtz Center for Heavy Ion Research,Gieβn 35392,Germany
5. GSI Helmholtzzentrum für Schwerionenforschung,Darmstadt D-64291,Germany
6. Astronomy and Physics Department,Saint Mary's University,Halifax B3H 3C3,Canada
7. Universidad de Santiago de Compostela,Santiago de Compostella E-15706,Spain
8. Department of Physics,Indian Institute of Technology(Indian School of Mines),Dhanbad 826004,India
9. GSI Helmholtzzentrum für Schwerionenforschung,Darmstadt D-64291,Germany;Justus-Liebig University,Gieβn 35392,Germany
10. Astronomy and Physics Department,Saint Mary's University,Halifax B3H 3C3,Canada;GSI Helmholtzzentrum für Schwerionenforschung,Darmstadt D-64291,Germany
11. Faculty of Mathematics and Physics,Comenius University,Bratislava 84215,Slovakia
12. Astronomy and Physics Department,Saint Mary's University,Halifax B3H 3C3,Canada;Department of Physics and Atmospheric Science,Dalhousie University,Halifax B3H 4R2,Canada
13. Research Center for Nuclear Physics(RCNP),Osaka University,Osaka 567-0047,Japan
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Abstract

We report the charge-changing cross sections(σcc)of 24 p-shell nuclides on both hydrogen and carbon at about 900A MeV,of which 8 9Li,10-12Be,10,14,15B,14,15,17-22N and 16O on hydrogen and 8,9Li on carbon are for the first time.Benefiting from the data set,we found a new and robust relationship between the scal-ing factor of the Glauber model calculations and the separation energies of the nuclei of interest on both targets.This allows us to deduce proton radii(Rp)for the first time from the cross sections on hydrogen.Nearly identical Rp values are deduced from both target data for the neutron-rich carbon isotopes;how-ever,the Rp from the hydrogen target is systematically smaller in the neutron-rich nitrogen isotopes.This calls for further experimental and theoretical investigations.

Key words

Exotic nuclei/Nuclear size/Reaction cross section/Glauber model/Radioactive ion beam

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基金项目

National Natural Science Foundation of China(12325506)

National Natural Science Foundation of China(11961141004)

the"111 center"(B20065)

NSERC,Canada,the Faculty Research Scheme at IIT(ISM)Dhanbad(154/2021-2022/Physics)

Chinese government and Beihang University under the Thousand Talent program()

出版年

2024

科学通报(英文版)

中国科学院

科学通报(英文版)

CSTPCD

ISSN：1001-6538

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