Swelling of Doubly Magic ^{48}Ca Core in Ca Isotopes beyond N=28.

Journal

Physical review letters

ISSN: 1079-7114

Titre abrégé: Phys Rev Lett

Pays: United States

ID NLM: 0401141

Informations de publication

Date de publication:
13 Mar 2020

Historique:

revised: 20 12 2019

received: 18 09 2019

accepted: 30 01 2020

entrez: 29 3 2020

pubmed: 29 3 2020

medline: 29 3 2020

Statut: ppublish

Résumé

Interaction cross sections for ^{42-51}Ca on a carbon target at 280 MeV/nucleon have been measured for the first time. The neutron number dependence of derived root-mean-square matter radii shows a significant increase beyond the neutron magic number N=28. Furthermore, this enhancement of matter radii is much larger than that of the previously measured charge radii, indicating a novel growth in neutron skin thickness. A simple examination based on the Fermi-type distribution, and mean field calculations point out that this anomalous enhancement of the nuclear size beyond N=28 results from an enlargement of the core by a sudden increase in the surface diffuseness of the neutron density distribution, which implies the swelling of the bare ^{48}Ca core in Ca isotopes beyond N=28.

Identifiants

DOI: 10.1103/PhysRevLett.124.102501 PMID: 32216444

pubmed: 32216444

doi: 10.1103/PhysRevLett.124.102501

doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

102501

Auteurs

M Tanaka (M)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan.

M Takechi (M)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

A Homma (A)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

M Fukuda (M)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

D Nishimura (D)

Department of Physics, Tokyo City University, Setagaya, Tokyo 158-8557, Japan.

T Suzuki (T)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

Y Tanaka (Y)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

T Moriguchi (T)

Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.

D S Ahn (DS)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

A Aimaganbetov (A)

Institute of Nuclear Physics, 050032 Almaty, Kazakhstan.

L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan.

M Amano (M)

Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.

H Arakawa (H)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

S Bagchi (S)

Astronomy and Physics Department, Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada.

Justus Liebig University, 35392 Giessen, Germany.

GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.

K-H Behr (KH)

GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.

N Burtebayev (N)

Institute of Nuclear Physics, 050032 Almaty, Kazakhstan.

K Chikaato (K)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

H Du (H)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

S Ebata (S)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

School of Environment and Society, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan.

T Fujii (T)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

N Fukuda (N)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

H Geissel (H)

GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.

T Hori (T)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

W Horiuchi (W)

Department of Physics, Hokkaido University, Sapporo 060-0810, Japan.

S Hoshino (S)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

R Igosawa (R)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

A Ikeda (A)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

N Inabe (N)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

K Inomata (K)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

K Itahashi (K)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

T Izumikawa (T)

Institute for Research Promotion, Niigata University, Niigata 950-8510, Japan.

D Kamioka (D)

Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.

N Kanda (N)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

I Kato (I)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

I Kenzhina (I)

Institute of Nuclear Physics, 050032 Almaty, Kazakhstan.

Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan.

Z Korkulu (Z)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

Y Kuk (Y)

Institute of Nuclear Physics, 050032 Almaty, Kazakhstan.

L.N. Gumilyov Eurasian National University, 010008 Astana, Kazakhstan.

K Kusaka (K)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

K Matsuta (K)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

M Mihara (M)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

E Miyata (E)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

D Nagae (D)

Research Center for Superheavy Elements, Kyushu University, Fukuoka 819-0395, Japan.

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

S Nakamura (S)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

M Nassurlla (M)

Institute of Nuclear Physics, 050032 Almaty, Kazakhstan.

Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan.

K Nishimuro (K)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

K Nishizuka (K)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

K Ohnishi (K)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

M Ohtake (M)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

T Ohtsubo (T)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

S Omika (S)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

H J Ong (HJ)

Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.

A Ozawa (A)

Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.

A Prochazka (A)

GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.

H Sakurai (H)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

Department of Physics, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.

C Scheidenberger (C)

GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.

Y Shimizu (Y)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

T Sugihara (T)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

T Sumikama (T)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

H Suzuki (H)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

S Suzuki (S)

Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan.

H Takeda (H)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

Y K Tanaka (YK)

GSI Helmholtzzentrum für Schwerionenforschung, 64291 Darmstadt, Germany.

I Tanihata (I)

Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan.

School of Physics and Nuclear Energy Engineering, Beihang University, 100191 Beijing, China.

T Wada (T)

Department of Physics, Niigata University, Ikarashi, Niigata 951-2181, Japan.

K Wakayama (K)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

S Yagi (S)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

T Yamaguchi (T)

Department of Physics, Saitama University, Saitama 338-8570, Japan.

Tomonaga Center for the History of the Universe, University of Tsukuba, Ibaraki 305-8571, Japan.

R Yanagihara (R)

Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan.

Y Yanagisawa (Y)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

K Yoshida (K)

RIKEN Nishina Center, Wako, Saitama 351-0198, Japan.

T K Zholdybayev (TK)

Institute of Nuclear Physics, 050032 Almaty, Kazakhstan.

Al-Farabi Kazakh National University, 050040 Almaty, Kazakhstan.

Classifications MeSH