The effects of beam drifts on elastic scattering measured by the large solid-angle covered detector array

Yao, Yonggang; Lin, C. J.; Yang, L.; Ma, Nan-Ru; Wang, Dong-Xi; Zhang, G. X.; Jia, H. M.; Feng, Yan

doi:10.1007/s41365-021-00854-6

Cited by 4 publications

(2 citation statements)

References 21 publications

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“…Two parallel plate avalanche counters (PPACs) 42 were installed in front of the target to reconstruct the trajectory of each incident beam ion event by event. A highly efficient silicon detector array 43 was employed to detect the reaction products. A summary on the experiment is given in the "Methods" section (see below).…”

Section: Resultsmentioning

confidence: 99%

Breakup of the proton halo nucleus 8B near barrier energies

et al. 2022

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The dynamics of a nuclear open quantum system could be revealed in the correlations between the breakup fragments of halo nuclei. The breakup mechanism of a proton halo nuclear system is of particular interest as the Coulomb polarization may play an important role, which, however, remains an open question. Here we use a highly efficient silicon detector array and measure the correlations between the breakup fragments of 8B incident on 120Sn at near-barrier energies. The energy and angular correlations can be explained by a fully quantum mechanical method based on the state-of-the-art continuum discretized coupled channel calculations. The results indicate that, compared to the neutron halo nucleus 6He, 8B presents distinctive reaction dynamics: the dominance of the elastic breakup. This breakup occurs mainly via the short-lived continuum states, almost exhausts the 7Be yield, indicating the effect of Coulomb polarization on the proton halo state. The correlation information reveals that the prompt breakup mechanism dominates, occurring predominantly on the outgoing trajectory. We also show that, as a large environment, the continuum of 8B breakup may not significantly influence elastic scattering and complete fusion.

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Section: Resultsmentioning

confidence: 99%

Breakup of the proton halo nucleus 8B near barrier energies

et al. 2022

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“…The beams impinged a self-hold target with a thickness of 210 g/cm , and the target was tilted by 70 relative to the beam line to avoid a blind area on the detectors caused by the target frame. The beam energies are listed in Table 1, together with the center-of-mass barrier energies for the two systems measured in a previous experiment [17].…”

Section: Methodsmentioning

confidence: 99%

Relative probabilities of breakup channels in reactions of ^6,7Li with ²⁰⁹Bi at energies around and above the Coulomb barrier *

Yao¹,

Lin²,

Yang³

et al. 2021

Chinese Phys. C

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Coincidence measurements of breakup fragments in reactions of with at energies around and above the Coulomb barrier were carried out using a large solid-angle covered detector array. Through the Q values along with the relative energies of the breakup fragments, different breakup components (prompt breakups and delayed breakups) and different breakup modes ( , , , and ) are distinguished. A new breakup mode, , is observed in -induced reactions at energies above the Coulomb barrier. Correlations between breakup modes and breakup components as well as their variations with the incident energy are investigated. The results will help us better understand the breakup effects of weakly bound nuclei on the suppression of a complete fusion, particularly for the above-barrier energies.

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Response functions of a 4π summing gamma detector in β-Oslo method

Yang

Hua

et al. 2022

NUCL SCI TECH

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The effects of beam drifts on elastic scattering measured by the large solid-angle covered detector array

Cited by 4 publications

References 21 publications

Breakup of the proton halo nucleus 8B near barrier energies

Breakup of the proton halo nucleus 8B near barrier energies

Relative probabilities of breakup channels in reactions of ^6,7Li with ²⁰⁹Bi at energies around and above the Coulomb barrier *

Response functions of a 4π summing gamma detector in β-Oslo method

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The effects of beam drifts on elastic scattering measured by the large solid-angle covered detector array

Cited by 4 publications

References 21 publications

Breakup of the proton halo nucleus 8B near barrier energies

Breakup of the proton halo nucleus 8B near barrier energies

Relative probabilities of breakup channels in reactions of 6,7Li with 209Bi at energies around and above the Coulomb barrier *

Response functions of a 4π summing gamma detector in β-Oslo method

Contact Info

Product

Resources

About

Relative probabilities of breakup channels in reactions of ^6,7Li with ²⁰⁹Bi at energies around and above the Coulomb barrier *