One-neutron pickup into<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ca</mml:mi><mml:mprescripts /><mml:none /><mml:mn>49</mml:mn></mml:mmultiscripts></mml:math>: Bound neutron<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>g</mml:mi><mml:mrow><mml:mn>9</mml:mn><mml:mo>/</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:math>spectroscopic strength at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>N</mml:mi><mml:

Gade, A.; Tostevin, J. A.; Bader, V. M.; Baugher, T.; Bazin, D.; Berryman, J. S.; Brown, B. A.; Hartley, D. J.; Lunderberg, E.; Recchia, F.; Stroberg, S. R.; Utsuno, Yutaka; Weißhaar, D.; Wimmer, K.

doi:10.1103/physrevc.93.031601

Cited by 18 publications

(57 citation statements)

References 31 publications

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“…The projectile-like reaction residues formed in the collision with the target were identified eventby-event with the focal-plane detection system of the S800 spectrograph and time-of-flight information involving plastic scintillators in the beam lines upstream of the reaction target. The magnetic rigidity of the S800 spectrograph was set to center the one-neutron pickup residues, 47 Ar [22] and 49 Ca [29], respectively. In the same settings, due to the large acceptance of the spectrograph, 40−43 S and 38−40 S, respectively, entered the S800 focal plane.…”

Section: Methodsmentioning

confidence: 99%

In-beam γ -ray spectroscopy of S38–42

et al. 2016

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The low-energy excitation level schemes of the neutron-rich 38−42 S isotopes are investigated via in-beam γ-ray spectroscopy following the fragmentation of 48 Ca and 46 Ar projectiles on a 12 C target at intermediate beam energies. Information on γγ coincidences complemented by comparisons to shell-model calculations were used to construct level schemes for these neutron-rich nuclei. The experimental data are discussed in the context of large-scale shell-model calculations with the SDPF-MU effective interaction in the sd-pf shell. For the even-mass S isotopes, the evolution of the yrast sequence is explored as well as a peculiar change in decay pattern of the second 2 + states at N = 26. For the odd-mass 41 S, a level scheme is presented that seems complete below 2.2 MeV and consistent with the predictions by the SDPF-MU shell-model Hamiltonian; this is a remarkable benchmark given the rapid shell and shape evolution at play in the S isotopes as the broken-down N = 28 magic number is approached. Furthermore, the population of excited final states in projectile fragmentation is discussed.

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Section: Methodsmentioning

confidence: 99%

In-beam γ -ray spectroscopy of S38–42

et al. 2016

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“…[31], the spin alignment in fast-beam one-nucleon pickup is strong. Thus, because of its broad angular coverage, the γ-ray angular distributions have to be taken into account for a precise determination of the in-beam γ-ray efficiency of the GRETINA array.…”

Section: Amentioning

confidence: 99%

“…[31] and its supplemental information [32]. This approach produces the optimal theoretically and experimentally constrained data set used here.…”

Section: Neutron-pickup Calculationsmentioning

confidence: 99%

“…A comparably thick production target was used to degrade the beam energy to 67 MeV/u to increase the pickup cross section (see the discussion in Ref. [31]). The total momentum acceptance of the A1900 was restricted to ∆p/p = 0.25%, resulting in an on-target rate of about 3 × 10 5 46 Ar/s.…”

Section: Amentioning

confidence: 99%

“…A 10% systematic uncertainty was added to the intensities of transitions with mixed M 1/E2 multipolarity to account for the uncertainty introduced by this choice. The statistics were not sufficient for an angular distribution analysis as presented in [31].…”

Section: Amentioning

confidence: 99%

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Single-particle structure atN=29: The structure ofAr47and first spectroscopy ofS
Gade
¹
,
Tostevin
²
,
Bader
³

et al. 2016
Phys. Rev. C
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Comprehensive spectroscopy of the N = 29 nucleus 47 Ar is presented, based on two complementary direct reaction mechanisms: one-neutron pickup onto 46 Ar projectiles and one-proton removal from the 1 − ground state of 48 K. The results are compared to shell-model calculations that use the state-of-the-art SDPF-U and SDPF-MU effective interactions. Also, from the 9 Be( 46 Cl, 45 S+γ)X one-proton removal reaction, we report the first γ-ray transitions observed from 45 S. Using comparisons with shell-model calculations, and from the observed intensities and energy sums, we propose a first tentative level scheme for 45 S.

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The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes

Weißhaar

Bazin

Bender

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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The γ-ray tracking array GRETINA was coupled to the S800 magnetic spectrometer for spectroscopy with fast beams of rare isotopes at the National Superconducting Cyclotron Laboratory on the campus of Michigan State University. We describe the technical details of this powerful setup and report on GRETINA's performance achieved with source and in-beam measurements. The γ-ray multiplicity encountered in experiments with fast beams is usually low, allowing for a simplified and efficient treatment of the data in the γ-ray analysis in terms of Doppler reconstruction and spectral quality. The results reported in this work were obtained from GRETINA consisting of 8 detector modules hosting four high-purity germanium crystals each. Currently, GRETINA consists of 10 detector modules.

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One-neutron pickup intoCa49: Bound neutrong9/2spectroscopic strength atN

Cited by 18 publications

References 31 publications

In-beam γ -ray spectroscopy of S38–42

In-beam γ -ray spectroscopy of S38–42

Single-particle structure atN=29: The structure ofAr47and first spectroscopy ofS
Gade
¹
,
Tostevin
²
,
Bader
³

et al. 2016
Phys. Rev. C
Self Cite
15
0
5
0
View full text Add to dashboard Cite

The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes

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One-neutron pickup intoCa49: Bound neutrong9/2spectroscopic strength atN

Cited by 18 publications

References 31 publications

In-beam γ -ray spectroscopy of S38–42

In-beam γ -ray spectroscopy of S38–42

Single-particle structure atN=29: The structure ofAr47and first spectroscopy ofSGade1, Tostevin2, Bader3 et al. 2016Phys. Rev. CSelf Cite15050View full textAdd to dashboardCite

The performance of the γ-ray tracking array GRETINA for γ-ray spectroscopy with fast beams of rare isotopes

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Single-particle structure atN=29: The structure ofAr47and first spectroscopy ofS
Gade
¹
,
Tostevin
²
,
Bader
³

et al. 2016
Phys. Rev. C
Self Cite
15
0
5
0
View full text Add to dashboard Cite