Hindered Gamow-Teller Decay to the Odd-Odd<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mi>Z</mml:mi></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>Ga</mml:mi></mml:mrow><mml:mprescripts /><mml:none /><mml:mrow><mml:mn>62</mml:mn></mml:mrow></mml:mmultiscripts></mml:mrow></mml:math>: Absence of Proton-Neutron<mml:math xmlns:mml="http://www.w3.org/1998/Mat

Grodner, E.; Gadea, A.; Sarriguren, P.; Lenzi, S. M.; Grȩbosz, J.; Algora, A.; Górska, M.; Regan, P. H.; Rudolph, Dirk; Angelis, G. de; Agramunt, J.; Alkhomashi, N.; Susam, Lidya Amon; Bazzacco, D.; Benlliure, J.; Boutachkov, P.; Bracco, A.; Cáceres, L.; Cakirli, R. B.; Crespi, F. C. L.; Domingo‐Pardo, C.; Doncel, M.; Dombrádi, Zs.; Doornenbal, P.; Farnea, E.; Ganioğlu, E.; Gelletly, W.; Gerl, J.; Gottardo, A.; Hüyük, T.; Kurz, N.; Leoni, S.; Mengoni, D.; Molina, F.; Morales, Ana Isabel; Orlandi, R.; Öktem, Y.; Page, R. D.; Perez, D.; Podolyák, Zs.; Poves, A.; Quintana, B.; Rinta‐Antila, S.; Rubio, B.; Singh, B. S. Nara; Steer, A. N.; Verma, S.; Wadsworth, R.; Wieland, O.; Wollersheim, H. J.

doi:10.1103/physrevlett.113.092501

Cited by 18 publications

(17 citation statements)

References 40 publications

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“…• The present shell model results correctly predict six 1 + levels with T = 0 as reported in a recent experiment [16].…”

Section: Discussionsupporting

confidence: 86%

“…However the relative spacings are quite well reproduced in our study as in [21]. In the previous shell model study [17] up to 2.5 MeV only four 1 + (T = 0) levels were reported while in the recent experimental work [16] six plausible 1 + levels were reported. However, our shell model calculations with jj44b interaction generates six 1 + (T = 0) levels as seen in experiment.…”

Section: Comparison With Previous Theoretical Studies 41 Spectroscopysupporting

confidence: 83%

“…3. Comparison of experimental data [9,16] with deformed shell model and shell-model results obtained using jj44b interaction for low-lying levels up to 3 MeV excitation. In the figure, the results for SM and DSM appear to be different and this is mainly because the energy of the lowest T = 0 state is different in the two models.…”

Section: Comparison With Previous Theoretical Studies 41 Spectroscopymentioning

confidence: 99%

“…However, more interesting are the N=Z oddodd nuclei as they will allow us to investigate isospin effects and in particular about T = 0 vs T = 1 pairing. As a consequence there are continuous experimental efforts to study in detail odd-odd N=Z nuclei in the A ∼ 60-80 region [7,8,9,10,11,12,13,14,15,16]. In this paper we will consider 62 Ga where there are new and more complete data [9] obtained recently by using heavy-ion fusion-evaporation reaction 40 Ca( 24 Mg,pn) 62 Ga near the Coulomb barrier with ATLAS accelerator and Gammasphere array.…”

Section: Introductionmentioning

confidence: 99%

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Shell model and deformed shell model spectroscopy of 62Ga

2015

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In the present work we have reported comprehensive analysis of recently available experimental data [H.M. David et al., Phys. Lett. B 726, 665 (2013)] for high-spin states up to 17 + with T = 0 in the odd-odd N = Z nucleus 62 Ga using shell model calculations within the full f 5/2 pg 9/2 model space and deformed shell model based on Hartee-Fock intrinsic states in the same space. The calculations have been performed using jj44b effective interaction developed recently by B.A. Brown and A.F. Lisetskiy for this model space. The results obtained with the two models are similar and they are in reasonable agreement with experimental data. In addition to the T = 0 and T = 1 energy bands, band crossings and electromagnetic transition probabilities, we have also calculated the pairing energy in shell model and all these compare well with the available theoretical results.PACS. 21.60.Cs Shell model, 21.10.Hw Spin, parity, and isobaric spin

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“…• The present shell model results correctly predict six 1 + levels with T = 0 as reported in a recent experiment [16].…”

Section: Discussionsupporting

confidence: 86%

Section: Comparison With Previous Theoretical Studies 41 Spectroscopysupporting

confidence: 83%

Section: Comparison With Previous Theoretical Studies 41 Spectroscopymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shell model and deformed shell model spectroscopy of 62Ga

2015

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“…Grodner et al [171] reported the first study of the GT decay of the 62 Ge T = 1, 0 + ground state into excited states of 62 Ga. The experiment was performed at GSI using the Fragment Separator and the RISING Ge-array coupled to an active implantation setup.…”

Section: Gamow-teller β-Decaymentioning

confidence: 99%

Overview of neutron–proton pairing

Frauendorf

Macchiavelli

2014

Progress in Particle and Nuclear Physics

193

179

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The role of neutron-proton pairing correlations on the structure of nuclei along the N = Z line is reviewed. Particular emphasis is placed on the competition between isovector (T = 1) and isoscalar (T = 0) pair fields. The expected properties of these systems, in terms of pairing collective motion, are assessed by different theoretical frameworks including schematic models, realistic Shell Model and mean field approaches. The results are contrasted with experimental data with the goal of establishing clear signals for the existence of neutron-proton (np) condensates. We will show that there is clear evidence for an isovector np condensate as expected from isospin invariance. However, and contrary to early expectations, a condensate of deuteron-like pairs appears quite elusive and pairing collectivity in the T = 0 channel may only show in the form of a phonon. Arguments are presented for the use of direct reactions, adding or removing an np pair, as the most promising tool to provide a definite answer to this intriguing question.

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