Proton Distribution Radii of O 16-24: Signatures of New Shell Closures and Neutron Skin

S. Kaur; R. Kanungo; W. Horiuchi; G. Hagen; J. D. Holt; B. S. Hu; T. Miyagi; T. Suzuki; F. Ameil; J. Atkinson; Y. Ayyad; S. Bagchi; D. Cortina-Gil; I. Dillmann; A. Estradé; A. Evdokimov; F. Farinon; H. Geissel; G. Guastalla; R. Janik; R. Knöbel; J. Kurcewicz; Yu A. Litvinov; M. Marta; M. Mostazo; I. Mukha; C. Nociforo; H. J. Ong; T. Otsuka; S. Pietri; A. Prochazka; C. Scheidenberger; B. Sitar; P. Strmen; M. Takechi; J. Tanaka; I. Tanihata; S. Terashima; J. Vargas; H. Weick; J. S. Winfield

doi:10.1103/PhysRevLett.129.142502

Proton Distribution Radii of O 16-24: Signatures of New Shell Closures and Neutron Skin

S. Kaur, R. Kanungo, W. Horiuchi, G. Hagen, J. D. Holt, B. S. Hu, T. Miyagi, T. Suzuki, F. Ameil, J. Atkinson, Y. Ayyad, S. Bagchi, D. Cortina-Gil, I. Dillmann, A. Estradé, A. Evdokimov, F. Farinon, H. Geissel, G. Guastalla, R. JanikR. Knöbel, J. Kurcewicz, Yu A. Litvinov, M. Marta, M. Mostazo, I. Mukha, C. Nociforo, H. J. Ong, T. Otsuka, S. Pietri, A. Prochazka, C. Scheidenberger, B. Sitar, P. Strmen, M. Takechi, J. Tanaka, I. Tanihata, S. Terashima, J. Vargas, H. Weick, J. S. Winfield

Theoretical and Computational Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

The root mean square radii of the proton density distribution in O16-24 derived from measurements of charge changing cross sections with a carbon target at ∼900A MeV together with the matter radii portray thick neutron skin for O22-24 despite O22,24 being doubly magic. Imprints of the shell closures at N=14 and 16 are reflected in local minima of their proton radii that provide evidence for the tensor interaction causing them. The radii agree with ab initio calculations employing the chiral NNLOsat interaction, though skin thickness predictions are challenged. Shell model predictions agree well with the data.

Original language	English
Article number	142502
Journal	Physical Review Letters
Volume	129
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.129.142502
State	Published - Sep 30 2022

Funding

The authors are thankful for the support of the GSI accelerator staff and the FRS technical staff for an efficient running of the experiment and S. R. Stroberg for the code used to perform these calculations. The support from NSERC, Canada for this work is gratefully acknowledged. The support of the PR China government and Beihang University under the Thousand Talent program is gratefully acknowledged. The experiment is partly supported by the grant-in-aid program of the Japanese government under the Contract No. 23224008. G. H. was supported by the Office of Nuclear Physics, U.S. Department of Energy, under Grant No. DE-SC0018223 (NUCLEI SciDAC-4 Collaboration), and Contract No. DE-AC05-00OR22725 with UT-Battelle, LLC (Oak Ridge National Laboratory). Computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) programme and an allocation of computing resources on Cedar at WestGrid and Compute Canada. This research used resources of the Oak Ridge Leadership Computing Facility located at Oak Ridge National Laboratory, which is supported by the Office of Science of the Department of Energy under Contract No. DE-AC05-00OR22725. This work was supported in part by JSPS KAKENHI Grants No. JP18K03635, No. JP19K03855, No. JP19H05145, and No. JP21H00117. This work was supported in part by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project-ID 279384907—SFB 1245. R. K. thanks L. Geng for providing the numerical values of the radii in Ref. .

Funders	Funder number
Office of Science of the Department of Energy
U.S. Department of Energy	DE-AC05-00OR22725, DE-SC0018223
Nuclear Physics
Oak Ridge National Laboratory
Natural Sciences and Engineering Research Council of Canada	23224008
Deutsche Forschungsgemeinschaft	279384907—SFB 1245
Japan Society for the Promotion of Science	JP21H00117, JP19H05145, JP19K03855, JP18K03635

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Kaur, S., Kanungo, R., Horiuchi, W., Hagen, G., Holt, J. D., Hu, B. S., Miyagi, T., Suzuki, T., Ameil, F., Atkinson, J., Ayyad, Y., Bagchi, S., Cortina-Gil, D., Dillmann, I., Estradé, A., Evdokimov, A., Farinon, F., Geissel, H., Guastalla, G., ... Winfield, J. S. (2022). Proton Distribution Radii of O 16-24: Signatures of New Shell Closures and Neutron Skin. Physical Review Letters, 129(14), Article 142502. https://doi.org/10.1103/PhysRevLett.129.142502

@article{2f6c0393f64b403bb1b7609545efbbed,

title = "Proton Distribution Radii of O 16-24: Signatures of New Shell Closures and Neutron Skin",

abstract = "The root mean square radii of the proton density distribution in O16-24 derived from measurements of charge changing cross sections with a carbon target at ∼900A MeV together with the matter radii portray thick neutron skin for O22-24 despite O22,24 being doubly magic. Imprints of the shell closures at N=14 and 16 are reflected in local minima of their proton radii that provide evidence for the tensor interaction causing them. The radii agree with ab initio calculations employing the chiral NNLOsat interaction, though skin thickness predictions are challenged. Shell model predictions agree well with the data.",

author = "S. Kaur and R. Kanungo and W. Horiuchi and G. Hagen and Holt, {J. D.} and Hu, {B. S.} and T. Miyagi and T. Suzuki and F. Ameil and J. Atkinson and Y. Ayyad and S. Bagchi and D. Cortina-Gil and I. Dillmann and A. Estrad{\'e} and A. Evdokimov and F. Farinon and H. Geissel and G. Guastalla and R. Janik and R. Kn{\"o}bel and J. Kurcewicz and Litvinov, {Yu A.} and M. Marta and M. Mostazo and I. Mukha and C. Nociforo and Ong, {H. J.} and T. Otsuka and S. Pietri and A. Prochazka and C. Scheidenberger and B. Sitar and P. Strmen and M. Takechi and J. Tanaka and I. Tanihata and S. Terashima and J. Vargas and H. Weick and Winfield, {J. S.}",

note = "Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

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month = sep,

day = "30",

doi = "10.1103/PhysRevLett.129.142502",

language = "English",

volume = "129",

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Kaur, S, Kanungo, R, Horiuchi, W, Hagen, G, Holt, JD, Hu, BS, Miyagi, T, Suzuki, T, Ameil, F, Atkinson, J, Ayyad, Y, Bagchi, S, Cortina-Gil, D, Dillmann, I, Estradé, A, Evdokimov, A, Farinon, F, Geissel, H, Guastalla, G, Janik, R, Knöbel, R, Kurcewicz, J, Litvinov, YA, Marta, M, Mostazo, M, Mukha, I, Nociforo, C, Ong, HJ, Otsuka, T, Pietri, S, Prochazka, A, Scheidenberger, C, Sitar, B, Strmen, P, Takechi, M, Tanaka, J, Tanihata, I, Terashima, S, Vargas, J, Weick, H & Winfield, JS 2022, 'Proton Distribution Radii of O 16-24: Signatures of New Shell Closures and Neutron Skin', Physical Review Letters, vol. 129, no. 14, 142502. https://doi.org/10.1103/PhysRevLett.129.142502

TY - JOUR

T1 - Proton Distribution Radii of O 16-24

T2 - Signatures of New Shell Closures and Neutron Skin

AU - Kaur, S.

AU - Kanungo, R.

AU - Horiuchi, W.

AU - Hagen, G.

AU - Holt, J. D.

AU - Hu, B. S.

AU - Miyagi, T.

AU - Suzuki, T.

AU - Ameil, F.

AU - Atkinson, J.

AU - Ayyad, Y.

AU - Bagchi, S.

AU - Cortina-Gil, D.

AU - Dillmann, I.

AU - Estradé, A.

AU - Evdokimov, A.

AU - Farinon, F.

AU - Geissel, H.

AU - Guastalla, G.

AU - Janik, R.

AU - Knöbel, R.

AU - Kurcewicz, J.

AU - Litvinov, Yu A.

AU - Marta, M.

AU - Mostazo, M.

AU - Mukha, I.

AU - Nociforo, C.

AU - Ong, H. J.

AU - Otsuka, T.

AU - Pietri, S.

AU - Prochazka, A.

AU - Scheidenberger, C.

AU - Sitar, B.

AU - Strmen, P.

AU - Takechi, M.

AU - Tanaka, J.

AU - Tanihata, I.

AU - Terashima, S.

AU - Vargas, J.

AU - Weick, H.

AU - Winfield, J. S.

PY - 2022/9/30

Y1 - 2022/9/30

N2 - The root mean square radii of the proton density distribution in O16-24 derived from measurements of charge changing cross sections with a carbon target at ∼900A MeV together with the matter radii portray thick neutron skin for O22-24 despite O22,24 being doubly magic. Imprints of the shell closures at N=14 and 16 are reflected in local minima of their proton radii that provide evidence for the tensor interaction causing them. The radii agree with ab initio calculations employing the chiral NNLOsat interaction, though skin thickness predictions are challenged. Shell model predictions agree well with the data.

AB - The root mean square radii of the proton density distribution in O16-24 derived from measurements of charge changing cross sections with a carbon target at ∼900A MeV together with the matter radii portray thick neutron skin for O22-24 despite O22,24 being doubly magic. Imprints of the shell closures at N=14 and 16 are reflected in local minima of their proton radii that provide evidence for the tensor interaction causing them. The radii agree with ab initio calculations employing the chiral NNLOsat interaction, though skin thickness predictions are challenged. Shell model predictions agree well with the data.

UR - http://www.scopus.com/inward/record.url?scp=85139855475&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.129.142502

DO - 10.1103/PhysRevLett.129.142502

M3 - Article

C2 - 36240396

AN - SCOPUS:85139855475

SN - 0031-9007

VL - 129

JO - Physical Review Letters

JF - Physical Review Letters

IS - 14

M1 - 142502

ER -

Proton Distribution Radii of O 16-24: Signatures of New Shell Closures and Neutron Skin

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