2015
DOI: 10.1103/physrevc.92.042501
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Revalidation of the isobaric multiplet mass equation for theA=20quintet

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Cited by 17 publications
(80 citation statements)
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References 38 publications
(71 reference statements)
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“…The ab initio predictions based on MBPT [22] show a stronger isospin dependence of the IMME than is experimentally observed [23]. The energy of the lowest T = 2, J π = 0 + state in 20 Na measured from superallowed β + decay of 20 Mg however successfully describes the T = 2, mass 20 multiplet by a quadratic IMME [26]. Excited states of the mirror nuclei 20 Mg and 20 O can provide further insight into the isospin dependence of the nuclear interaction and the nature of the N = 8 shell closure at the proton drip-line.…”
mentioning
confidence: 67%
“…The ab initio predictions based on MBPT [22] show a stronger isospin dependence of the IMME than is experimentally observed [23]. The energy of the lowest T = 2, J π = 0 + state in 20 Na measured from superallowed β + decay of 20 Mg however successfully describes the T = 2, mass 20 multiplet by a quadratic IMME [26]. Excited states of the mirror nuclei 20 Mg and 20 O can provide further insight into the isospin dependence of the nuclear interaction and the nature of the N = 8 shell closure at the proton drip-line.…”
mentioning
confidence: 67%
“…The present experiment is one in a series of recent β-delayed γ decay experiments to investigate the sd shell using fast neutron-deficient beams at the National Superconducting Cyclotron Laboratory [16,[38][39][40][41]. In particular, the β-delayed γ decay of 31 Cl was measured using an experimental procedure that was already described in [38].…”
Section: Methodsmentioning
confidence: 99%
“…[10] reported, in addition to the findings on 21 Mg, a new 20 Mg mass and a resulting IMME breakdown requiring a cubic term of 2.8(11) keV for the A = 20, T = 2 quintent. In this case, a recent experimental measurement of 20 Mg beta decay [16] used the superallowed 0 + → 0 + transition to the T = 2 20 Na IAS and the state's subsequent gamma decay to deduce an excitation energy for the IAS. This result was 28 times more precise than the previous measurement and, together with the ground state mass excess of 20 Na, was shown to revalidate the IMME for the A = 20, T = 2 quintet.…”
Section: Introductionmentioning
confidence: 99%
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“…[15]. This is a crucial aspect, as other similar experimental investigations in the past have been prone to misinterpretations on account of inaccurately known IAS excitation energies [11,[28][29][30][31][32]. To resolve the above issue, we remeasured the energy of the second J π ; T = 1/2 − ; 3/2 state in 9 B using the 9 Be( 3 He, t) reaction.…”
mentioning
confidence: 99%