Are there signatures of harmonic oscillator shells far from stability? - First spectroscopy of 110Zr

Paul, N, Corsi, A, Obertelli, A, Doornenbal, P, Authelet, G, Baba, H, Bally, B, Bender, M, Calvet, D, Chateau, F et al, Chen, S, Delaroche, J-P, Delbart, A, Gheller, J-M, Giganon, A, Gillibert, A, Girod, M, Heenen, P-H, Lapoux, V, Libert, J, Motobayashi, T, Niikura, M, Otsuka, T, Rodrıguez, TR, Rousse, J-Y, Sakurai, H, Santamaria, C, Shimizu, N, Steppenbeck, D, Taniuchi, R, Togashi, T, Tsunoda, Y, Uesaka, T, Ando, T, Arici, T, Blazhev, A, Browne, F, Bruce, AM, Carroll, R, Chung, LX, Cortes, ML, Dewald, M, Ding, B, Flavigny, F, Franchoo, S, Gorska, M, Gottardo, A, Jungclaus, A, Lee, J, Lettmann, M, Linh, BD, Liu, J, Liu, Z, Lizarazo, C, Momiyama, S, Moschner, K, Nagamine, S, Nakatsuka, N, Nita, C, Nobs, CR, Olivier, L, Patel, Z, Podolyak, Zsolt, Rudigier, Matthias, Saito, T, Shand, Callum, Soderstrom, P-A, Stefan, I, Orlandi, R, Vaquero, V, Werner, V, Wimmer, K and Xu, Z (2017) Are there signatures of harmonic oscillator shells far from stability? - First spectroscopy of 110Zr Physical Review Letters, 118 (3), 032501.

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Abstract

The first measurement of the low-lying states of the neutron-rich 110 Zr and 112 Mo was performed via in-beam γ -ray spectroscopy after one proton removal on hydrogen at ∼ 200     MeV / nucleon . The 2 + 1 excitation energies were found at 185(11) keV in 110 Zr , and 235(7) keV in 112 Mo , while the R 42 = E ( 4 + 1 ) / E ( 2 + 1 ) ratios are 3.1(2), close to the rigid rotor value, and 2.7(1), respectively. These results are compared to modern energy density functional based configuration mixing models using Gogny and Skyrme effective interactions. We conclude that first levels of 110 Zr exhibit a rotational behavior, in agreement with previous observations of lighter zirconium isotopes as well as with the most advanced Monte Carlo shell model predictions. The data, therefore, do not support a harmonic oscillator shell stabilization scenario at Z = 40 and N = 70 . The present data also invalidate predictions for a tetrahedral ground state symmetry in 110 Zr .

Item Type:	Article
Subjects :	Physics
Divisions :	Faculty of Engineering and Physical Sciences > Physics
Authors :	Name Email ORCID Paul, N UNSPECIFIED UNSPECIFIED Corsi, A UNSPECIFIED UNSPECIFIED Obertelli, A UNSPECIFIED UNSPECIFIED Doornenbal, P UNSPECIFIED UNSPECIFIED Authelet, G UNSPECIFIED UNSPECIFIED Baba, H UNSPECIFIED UNSPECIFIED Bally, B UNSPECIFIED UNSPECIFIED Bender, M UNSPECIFIED UNSPECIFIED Calvet, D UNSPECIFIED UNSPECIFIED Chateau, F UNSPECIFIED UNSPECIFIED Chen, S UNSPECIFIED UNSPECIFIED Delaroche, J-P UNSPECIFIED UNSPECIFIED Delbart, A UNSPECIFIED UNSPECIFIED Gheller, J-M UNSPECIFIED UNSPECIFIED Giganon, A UNSPECIFIED UNSPECIFIED Gillibert, A UNSPECIFIED UNSPECIFIED Girod, M UNSPECIFIED UNSPECIFIED Heenen, P-H UNSPECIFIED UNSPECIFIED Lapoux, V UNSPECIFIED UNSPECIFIED Libert, J UNSPECIFIED UNSPECIFIED Motobayashi, T UNSPECIFIED UNSPECIFIED Niikura, M UNSPECIFIED UNSPECIFIED Otsuka, T UNSPECIFIED UNSPECIFIED Rodrıguez, TR UNSPECIFIED UNSPECIFIED Rousse, J-Y UNSPECIFIED UNSPECIFIED Sakurai, H UNSPECIFIED UNSPECIFIED Santamaria, C UNSPECIFIED UNSPECIFIED Shimizu, N UNSPECIFIED UNSPECIFIED Steppenbeck, D UNSPECIFIED UNSPECIFIED Taniuchi, R UNSPECIFIED UNSPECIFIED Togashi, T UNSPECIFIED UNSPECIFIED Tsunoda, Y UNSPECIFIED UNSPECIFIED Uesaka, T UNSPECIFIED UNSPECIFIED Ando, T UNSPECIFIED UNSPECIFIED Arici, T UNSPECIFIED UNSPECIFIED Blazhev, A UNSPECIFIED UNSPECIFIED Browne, F UNSPECIFIED UNSPECIFIED Bruce, AM UNSPECIFIED UNSPECIFIED Carroll, R UNSPECIFIED UNSPECIFIED Chung, LX UNSPECIFIED UNSPECIFIED Cortes, ML UNSPECIFIED UNSPECIFIED Dewald, M UNSPECIFIED UNSPECIFIED Ding, B UNSPECIFIED UNSPECIFIED Flavigny, F UNSPECIFIED UNSPECIFIED Franchoo, S UNSPECIFIED UNSPECIFIED Gorska, M UNSPECIFIED UNSPECIFIED Gottardo, A UNSPECIFIED UNSPECIFIED Jungclaus, A UNSPECIFIED UNSPECIFIED Lee, J UNSPECIFIED UNSPECIFIED Lettmann, M UNSPECIFIED UNSPECIFIED Linh, BD UNSPECIFIED UNSPECIFIED Liu, J UNSPECIFIED UNSPECIFIED Liu, Z UNSPECIFIED UNSPECIFIED Lizarazo, C UNSPECIFIED UNSPECIFIED Momiyama, S UNSPECIFIED UNSPECIFIED Moschner, K UNSPECIFIED UNSPECIFIED Nagamine, S UNSPECIFIED UNSPECIFIED Nakatsuka, N UNSPECIFIED UNSPECIFIED Nita, C UNSPECIFIED UNSPECIFIED Nobs, CR UNSPECIFIED UNSPECIFIED Olivier, L UNSPECIFIED UNSPECIFIED Patel, Z UNSPECIFIED UNSPECIFIED Podolyak, Zsolt Z.Podolyak@surrey.ac.uk UNSPECIFIED Rudigier, Matthias m.rudigier@surrey.ac.uk UNSPECIFIED Saito, T UNSPECIFIED UNSPECIFIED Shand, Callum c.shand@surrey.ac.uk UNSPECIFIED Soderstrom, P-A UNSPECIFIED UNSPECIFIED Stefan, I UNSPECIFIED UNSPECIFIED Orlandi, R UNSPECIFIED UNSPECIFIED Vaquero, V UNSPECIFIED UNSPECIFIED Werner, V UNSPECIFIED UNSPECIFIED Wimmer, K UNSPECIFIED UNSPECIFIED Xu, Z UNSPECIFIED UNSPECIFIED
Date :	18 January 2017
Identification Number :	10.1103/PhysRevLett.118.032501
Copyright Disclaimer :	Copyright 2017 American Physical Society
Related URLs :	Publisher
Depositing User :	Symplectic Elements
Date Deposited :	31 Jan 2017 17:07
Last Modified :	19 Jul 2017 09:00
URI:	http://epubs.surrey.ac.uk/id/eprint/813415

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