Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA

K. Hadyńska-Klk; P. J. Napiorkowski; M. Zielińska; J Srebrny; A. Maj; F. Azaiez; J. J. Valiente-Dobón; M Kicińska-Habior; F Nowacki; H Naïdja; B Bounthong; T R Rodríguez; G de Angelis; W T Abraham; G. Anil Kumar; D. Bazzacco; M. Bellato; D. Bortolato; P Bednarczyk; G. Benzoni; L. Berti; B. Birkenbach; B. Bruyneel; S. Brambilla; F. Camera; J. Chavas; B Cederwall; Lucie Charles; M Ciemała; P. Cocconi; P J Coleman-Smith; A. Colombo; A. Corsi; F. C. L. Crespi; D. M. Cullen; A. Czermak; P Désesquelles; D. T. Doherty; B Dulny; J Eberth; E Farnea; B. Fornal; S Franchoo; A. Gadea; A. Giaz; A. Gottardo; X. Grave; J. Grebosz; A. Görgen; M. Gulmini; T. Habermann; H. Hess; R Isocrate; J. Iwanicki; G. Jaworski; D S Judson; A. Jungclaus; N. Karkour; M. Kmiecik; D Karpiński; M Kisieliński; N. Kondratyev; A. Korichi; M. Komorowska; M Kowalczyk; W Korten; M. Krzysiek; G. Lehaut; S. Leoni; J. Ljungvall; A. Lopez-Martens; S. Lunardi; G. Maron; K. Mazurek; R. Menegazzo; D. Mengoni; E. Merchán; W. Meczyński; C. Michelagnoli; B. Million; S. Myalski; D. R. Napoli; M. Niikura; A. Obertelli; S.F. Özmen; M. Palacz; L Próchniak; A. Pullia; B. Quintana; G. Rampazzo; F. Recchia; N Redon; P Reiter; D. Rosso; K  Rusek; E. Sahin; M. -D. Salsac; P.-A. Söderström; I. Stefan; O. Stézowski; J. Styczeń; Ch. Theisen; N. Toniolo; C. A. Ur; R. Wadsworth; B. Wasilewska; A. Wiens; J. L. Wood; K Wrzosek-Lipska; M. Ziebliński

doi:10.1103/PhysRevC.97.024326

Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA

K. Hadyńska-Klk^*, P. J. Napiorkowski, M. Zielińska, J Srebrny, A. Maj, F. Azaiez, J. J. Valiente-Dobón, M Kicińska-Habior, F Nowacki, H Naïdja, B Bounthong, T R Rodríguez, G de Angelis, W T Abraham, G. Anil Kumar, D. Bazzacco, M. Bellato, D. Bortolato, P Bednarczyk, G. BenzoniL. Berti, B. Birkenbach, B. Bruyneel, S. Brambilla, F. Camera, J. Chavas, B Cederwall, Lucie Charles, M Ciemała, P. Cocconi, P J Coleman-Smith, A. Colombo, A. Corsi, F. C. L. Crespi, D. M. Cullen, A. Czermak, P Désesquelles, D. T. Doherty, B Dulny, J Eberth, E Farnea, B. Fornal, S Franchoo, A. Gadea, A. Giaz, A. Gottardo, X. Grave, J. Grebosz, A. Görgen, M. Gulmini, T. Habermann, H. Hess, R Isocrate, J. Iwanicki, G. Jaworski, D S Judson, A. Jungclaus, N. Karkour, M. Kmiecik, D Karpiński, M Kisieliński, N. Kondratyev, A. Korichi, M. Komorowska, M Kowalczyk, W Korten, M. Krzysiek, G. Lehaut, S. Leoni, J. Ljungvall, A. Lopez-Martens, S. Lunardi, G. Maron, K. Mazurek, R. Menegazzo, D. Mengoni, E. Merchán, W. Meczyński, C. Michelagnoli, B. Million, S. Myalski, D. R. Napoli, M. Niikura, A. Obertelli, S.F. Özmen, M. Palacz, L Próchniak, A. Pullia, B. Quintana, G. Rampazzo, F. Recchia, N Redon, P Reiter, D. Rosso, K Rusek, E. Sahin, M. -D. Salsac, P.-A. Söderström, I. Stefan, O. Stézowski, J. Styczeń, Ch. Theisen, N. Toniolo, C. A. Ur, R. Wadsworth, B. Wasilewska, A. Wiens, J. L. Wood, K Wrzosek-Lipska, M. Ziebliński

^*Corresponding author for this work

Physics

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

Abstract

A Coulomb-excitation experiment to study electromagnetic properties of Ca42 was performed using a 170-MeV calcium beam from the TANDEM XPU facility at INFN Laboratori Nazionali di Legnaro. γ rays from excited states in Ca42 were measured with the AGATA spectrometer. The magnitudes and relative signs of ten E2 matrix elements coupling six low-lying states in Ca42, including the diagonal E2 matrix elements of 21+ and 22+ states, were determined using the least-squares code gosia. The obtained set of reduced E2 matrix elements was analyzed using the quadrupole sum rule method and yielded overall quadrupole deformation for 01,2+ and 21,2+ states, as well as triaxiality for 01,2+ states, establishing the coexistence of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca42. The experimental results were compared with the state-of-the-art large-scale shell-model and beyond-mean-field calculations, which reproduce well the general picture of shape coexistence in Ca42.

Original language	English
Article number	024326
Pages (from-to)	1-20
Number of pages	20
Journal	Physical Review C
Volume	97
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.97.024326
Publication status	Published - 21 Feb 2018

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10.1103/PhysRevC.97.024326

PhysRevC.97.024326
©2018 American Physical Society.
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Hadyńska-Klk, K., Napiorkowski, P. J., Zielińska, M., Srebrny, J., Maj, A., Azaiez, F., Valiente-Dobón, J. J., Kicińska-Habior, M., Nowacki, F., Naïdja, H., Bounthong, B., Rodríguez, T. R., de Angelis, G., Abraham, W. T., Anil Kumar, G., Bazzacco, D., Bellato, M., Bortolato, D., Bednarczyk, P., ... Ziebliński, M. (2018). Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA. Physical Review C, 97(2), 1-20. Article 024326. https://doi.org/10.1103/PhysRevC.97.024326

@article{3544adff4db145bbbc080df05ee73866,

title = "Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA",

abstract = "A Coulomb-excitation experiment to study electromagnetic properties of Ca42 was performed using a 170-MeV calcium beam from the TANDEM XPU facility at INFN Laboratori Nazionali di Legnaro. γ rays from excited states in Ca42 were measured with the AGATA spectrometer. The magnitudes and relative signs of ten E2 matrix elements coupling six low-lying states in Ca42, including the diagonal E2 matrix elements of 21+ and 22+ states, were determined using the least-squares code gosia. The obtained set of reduced E2 matrix elements was analyzed using the quadrupole sum rule method and yielded overall quadrupole deformation for 01,2+ and 21,2+ states, as well as triaxiality for 01,2+ states, establishing the coexistence of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca42. The experimental results were compared with the state-of-the-art large-scale shell-model and beyond-mean-field calculations, which reproduce well the general picture of shape coexistence in Ca42.",

author = "K. Hady{\'n}ska-Klk and Napiorkowski, {P. J.} and M. Zieli{\'n}ska and J Srebrny and A. Maj and F. Azaiez and Valiente-Dob{\'o}n, {J. J.} and M Kici{\'n}ska-Habior and F Nowacki and H Na{\"i}dja and B Bounthong and Rodr{\'i}guez, {T R} and {de Angelis}, G and Abraham, {W T} and {Anil Kumar}, G. and D. Bazzacco and M. Bellato and D. Bortolato and P Bednarczyk and G. Benzoni and L. Berti and B. Birkenbach and B. Bruyneel and S. Brambilla and F. Camera and J. Chavas and B Cederwall and Lucie Charles and M Ciema{\l}a and P. Cocconi and Coleman-Smith, {P J} and A. Colombo and A. Corsi and Crespi, {F. C. L.} and Cullen, {D. M.} and A. Czermak and P D{\'e}sesquelles and Doherty, {D. T.} and B Dulny and J Eberth and E Farnea and B. Fornal and S Franchoo and A. Gadea and A. Giaz and A. Gottardo and X. Grave and J. Grebosz and A. G{\"o}rgen and M. Gulmini and T. Habermann and H. Hess and R Isocrate and J. Iwanicki and G. Jaworski and Judson, {D S} and A. Jungclaus and N. Karkour and M. Kmiecik and D Karpi{\'n}ski and M Kisieli{\'n}ski and N. Kondratyev and A. Korichi and M. Komorowska and M Kowalczyk and W Korten and M. Krzysiek and G. Lehaut and S. Leoni and J. Ljungvall and A. Lopez-Martens and S. Lunardi and G. Maron and K. Mazurek and R. Menegazzo and D. Mengoni and E. Merch{\'a}n and W. Meczy{\'n}ski and C. Michelagnoli and B. Million and S. Myalski and Napoli, {D. R.} and M. Niikura and A. Obertelli and S.F. {\"O}zmen and M. Palacz and L Pr{\'o}chniak and A. Pullia and B. Quintana and G. Rampazzo and F. Recchia and N Redon and P Reiter and D. Rosso and K Rusek and E. Sahin and Salsac, {M. -D.} and P.-A. S{\"o}derstr{\"o}m and I. Stefan and O. St{\'e}zowski and J. Stycze{\'n} and Ch. Theisen and N. Toniolo and Ur, {C. A.} and R. Wadsworth and B. Wasilewska and A. Wiens and Wood, {J. L.} and K Wrzosek-Lipska and M. Ziebli{\'n}ski",

note = "{\textcopyright}2018 American Physical Society.",

year = "2018",

month = feb,

day = "21",

doi = "10.1103/PhysRevC.97.024326",

language = "English",

volume = "97",

pages = "1--20",

journal = "Physical Review C",

issn = "2469-9985",

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Hadyńska-Klk, K, Napiorkowski, PJ, Zielińska, M, Srebrny, J, Maj, A, Azaiez, F, Valiente-Dobón, JJ, Kicińska-Habior, M, Nowacki, F, Naïdja, H, Bounthong, B, Rodríguez, TR, de Angelis, G, Abraham, WT, Anil Kumar, G, Bazzacco, D, Bellato, M, Bortolato, D, Bednarczyk, P, Benzoni, G, Berti, L, Birkenbach, B, Bruyneel, B, Brambilla, S, Camera, F, Chavas, J, Cederwall, B, Charles, L, Ciemała, M, Cocconi, P, Coleman-Smith, PJ, Colombo, A, Corsi, A, Crespi, FCL, Cullen, DM, Czermak, A, Désesquelles, P, Doherty, DT, Dulny, B, Eberth, J, Farnea, E, Fornal, B, Franchoo, S, Gadea, A, Giaz, A, Gottardo, A, Grave, X, Grebosz, J, Görgen, A, Gulmini, M, Habermann, T, Hess, H, Isocrate, R, Iwanicki, J, Jaworski, G, Judson, DS, Jungclaus, A, Karkour, N, Kmiecik, M, Karpiński, D, Kisieliński, M, Kondratyev, N, Korichi, A, Komorowska, M, Kowalczyk, M, Korten, W, Krzysiek, M, Lehaut, G, Leoni, S, Ljungvall, J, Lopez-Martens, A, Lunardi, S, Maron, G, Mazurek, K, Menegazzo, R, Mengoni, D, Merchán, E, Meczyński, W, Michelagnoli, C, Million, B, Myalski, S, Napoli, DR, Niikura, M, Obertelli, A, Özmen, SF, Palacz, M, Próchniak, L, Pullia, A, Quintana, B, Rampazzo, G, Recchia, F, Redon, N, Reiter, P, Rosso, D, Rusek, K, Sahin, E, Salsac, M-D, Söderström, P-A, Stefan, I, Stézowski, O, Styczeń, J, Theisen, C, Toniolo, N, Ur, CA, Wadsworth, R, Wasilewska, B, Wiens, A, Wood, JL, Wrzosek-Lipska, K & Ziebliński, M 2018, 'Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA', Physical Review C, vol. 97, no. 2, 024326, pp. 1-20. https://doi.org/10.1103/PhysRevC.97.024326

TY - JOUR

T1 - Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA

AU - Hadyńska-Klk, K.

AU - Napiorkowski, P. J.

AU - Zielińska, M.

AU - Srebrny, J

AU - Maj, A.

AU - Azaiez, F.

AU - Valiente-Dobón, J. J.

AU - Kicińska-Habior, M

AU - Nowacki, F

AU - Naïdja, H

AU - Bounthong, B

AU - Rodríguez, T R

AU - de Angelis, G

AU - Abraham, W T

AU - Anil Kumar, G.

AU - Bazzacco, D.

AU - Bellato, M.

AU - Bortolato, D.

AU - Bednarczyk, P

AU - Benzoni, G.

AU - Berti, L.

AU - Birkenbach, B.

AU - Bruyneel, B.

AU - Brambilla, S.

AU - Camera, F.

AU - Chavas, J.

AU - Cederwall, B

AU - Charles, Lucie

AU - Ciemała, M

AU - Cocconi, P.

AU - Coleman-Smith, P J

AU - Colombo, A.

AU - Corsi, A.

AU - Crespi, F. C. L.

AU - Cullen, D. M.

AU - Czermak, A.

AU - Désesquelles, P

AU - Doherty, D. T.

AU - Dulny, B

AU - Eberth, J

AU - Farnea, E

AU - Fornal, B.

AU - Franchoo, S

AU - Gadea, A.

AU - Giaz, A.

AU - Gottardo, A.

AU - Grave, X.

AU - Grebosz, J.

AU - Görgen, A.

AU - Gulmini, M.

AU - Habermann, T.

AU - Hess, H.

AU - Isocrate, R

AU - Iwanicki, J.

AU - Jaworski, G.

AU - Judson, D S

AU - Jungclaus, A.

AU - Karkour, N.

AU - Kmiecik, M.

AU - Karpiński, D

AU - Kisieliński, M

AU - Kondratyev, N.

AU - Korichi, A.

AU - Komorowska, M.

AU - Kowalczyk, M

AU - Korten, W

AU - Krzysiek, M.

AU - Lehaut, G.

AU - Leoni, S.

AU - Ljungvall, J.

AU - Lopez-Martens, A.

AU - Lunardi, S.

AU - Maron, G.

AU - Mazurek, K.

AU - Menegazzo, R.

AU - Mengoni, D.

AU - Merchán, E.

AU - Meczyński, W.

AU - Michelagnoli, C.

AU - Million, B.

AU - Myalski, S.

AU - Napoli, D. R.

AU - Niikura, M.

AU - Obertelli, A.

AU - Özmen, S.F.

AU - Palacz, M.

AU - Próchniak, L

AU - Pullia, A.

AU - Quintana, B.

AU - Rampazzo, G.

AU - Recchia, F.

AU - Redon, N

AU - Reiter, P

AU - Rosso, D.

AU - Rusek, K

AU - Sahin, E.

AU - Salsac, M. -D.

AU - Söderström, P.-A.

AU - Stefan, I.

AU - Stézowski, O.

AU - Styczeń, J.

AU - Theisen, Ch.

AU - Toniolo, N.

AU - Ur, C. A.

AU - Wadsworth, R.

AU - Wasilewska, B.

AU - Wiens, A.

AU - Wood, J. L.

AU - Wrzosek-Lipska, K

AU - Ziebliński, M.

PY - 2018/2/21

Y1 - 2018/2/21

N2 - A Coulomb-excitation experiment to study electromagnetic properties of Ca42 was performed using a 170-MeV calcium beam from the TANDEM XPU facility at INFN Laboratori Nazionali di Legnaro. γ rays from excited states in Ca42 were measured with the AGATA spectrometer. The magnitudes and relative signs of ten E2 matrix elements coupling six low-lying states in Ca42, including the diagonal E2 matrix elements of 21+ and 22+ states, were determined using the least-squares code gosia. The obtained set of reduced E2 matrix elements was analyzed using the quadrupole sum rule method and yielded overall quadrupole deformation for 01,2+ and 21,2+ states, as well as triaxiality for 01,2+ states, establishing the coexistence of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca42. The experimental results were compared with the state-of-the-art large-scale shell-model and beyond-mean-field calculations, which reproduce well the general picture of shape coexistence in Ca42.

AB - A Coulomb-excitation experiment to study electromagnetic properties of Ca42 was performed using a 170-MeV calcium beam from the TANDEM XPU facility at INFN Laboratori Nazionali di Legnaro. γ rays from excited states in Ca42 were measured with the AGATA spectrometer. The magnitudes and relative signs of ten E2 matrix elements coupling six low-lying states in Ca42, including the diagonal E2 matrix elements of 21+ and 22+ states, were determined using the least-squares code gosia. The obtained set of reduced E2 matrix elements was analyzed using the quadrupole sum rule method and yielded overall quadrupole deformation for 01,2+ and 21,2+ states, as well as triaxiality for 01,2+ states, establishing the coexistence of a weakly deformed ground-state band and highly deformed slightly triaxial sideband in Ca42. The experimental results were compared with the state-of-the-art large-scale shell-model and beyond-mean-field calculations, which reproduce well the general picture of shape coexistence in Ca42.

UR - http://www.scopus.com/inward/record.url?scp=85043273615&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.97.024326

DO - 10.1103/PhysRevC.97.024326

M3 - Article

AN - SCOPUS:85043273615

SN - 2469-9985

VL - 97

SP - 1

EP - 20

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024326

ER -

Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA

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Nuclear Physics Consolidated Grant

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Quadrupole collectivity in Ca 42 from low-energy Coulomb excitation with AGATA

Abstract

Bibliographical note

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Nuclear Physics Consolidated Grant

Nuclear Physics Consolidated Grant

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