The (p, t) reaction on even isotopes of Sm

Debenham, P. H.; Hintz, Norton M.

doi:10.1016/0375-9474(72)91067-6

Cited by 98 publications

(26 citation statements)

References 35 publications

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“…The classical matrix elements of the s-boson operator for (t, p) reactions shown in (33), (35) and (39) had already been derived in [8]. Here we have given also those of the d-boson and included the γ-dependence for both (p, t) and (t, p) transfer reactions.…”

Section: B Classical Treatmentmentioning

confidence: 99%

Two-nucleon transfer reactions as a test of quantum phase transitions in nuclei

Zhang

Iachello

2017

Phys. Rev. C

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A quantal and a semiclassical analysis of two-nucleon transfer intensities is done within the framework of the interacting boson model. The expected features of these quantities for the quantum phase transition (QPT) between spherical, U(5), and axially deformed, SU(3), shapes are discussed. Experimental data for (p, t) and (t, p) transfer reactions clearly show the occurrence of QPTs in Gd, Sm and Nd.

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Section: B Classical Treatmentmentioning

confidence: 99%

Two-nucleon transfer reactions as a test of quantum phase transitions in nuclei

Zhang

Iachello

2017

Phys. Rev. C

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“…Cross sections for populating excited states in 150,152 Sm via the (p,t) reaction have previously been measured in references [9][10][11][12]. In Table III the relative cross sections obtained in the present work for the 152 Sm(p,t) reaction are compared to those obtained by Debenham et al [11] and McLatchie et al [10].…”

Section: Partial Cross Sectionsmentioning

confidence: 60%

“…In Table III the relative cross sections obtained in the present work for the 152 Sm(p,t) reaction are compared to those obtained by Debenham et al [11] and McLatchie et al [10]. Since the cross sections obtained in the present work are angle averaged between 34 to 58 degrees whereas the values quoted by Debenham are the maximum differential cross sections at the listed angle, this table is provided as a general comparison only.…”

Section: Partial Cross Sectionsmentioning

confidence: 89%

“…Two-neutron transfer reactions provide an excellent tool with which to study both the removal of pairs of correlated neutrons from valence orbitals, typically populating states at relatively low excitation energies, as well as the removal of neutrons from deep below the Fermi surface. Following the work of Maxwell [7], further Sm(p,t) experiments were performed with improved energy resolution for the outgoing tritons, see for example [9][10][11][12], at various incident proton beam energies. In the 1981 study by Struble et al [13] a large, broad enhancement of two-neutron transfer strength at an excitation energy of approximately 6 MeV was observed in the 148,150,152,154 Sm(p,t) reactions.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of discrete states and quasidiscrete structures observed in Sm150 and Sm152 using the
Humby
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Simón
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Beausang
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et al. 2016
Phys. Rev. C
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New levels and γ-ray transitions were identified in 150,152 Sm utilizing the (p,t) reaction and particle-γ coincidence data. A large, peak-like structure observed between 2.3-3.0 MeV in excitation energy in the triton energy spectra was also investigated. The orbital angular momentum transfer was probed by comparing the experimental angular distributions of the outgoing tritons to calculated DWBA curves. The angular distributions of the outgoing tritons populating the peak-like structure are remarkably similar in the two reactions, and are significantly different to the angular distributions associated with the nearby continuum region. Relative partial cross sections for the observed levels, angle averaged between 34 and 58 degrees, were measured. In 150 Sm 39(4)% of the strength of the peak-like structure could be accounted for by the observed discrete states. This compares to a value of 93(15)% for 152 Sm.

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“…Likewise, the A > 100 molybdenum nuclei are gradually more deformed, splitting the (t, p) strength to more states than just the ground state. A similar situation exists in the Sm isotopes with the (p, t) reaction on the transitional nucleus 150 Sm leading to an excited 0 + state with 58% the strength of the ground state transition, while the corresponding 148 Sm(t, p) 150 Sm reaction does not populate that state [24].…”

Section: Fig 2 (Color Online)mentioning

confidence: 64%