Strongly resonating bosons in hot nuclei

Zhang, S.; Bonasera, A.; Huang, M.; Zheng, H.; Wang, D. X.; Wang, J. C.; Lu, L.; Zhang, G.; Kohley, Z.; Ma, Y. G.; Yennello, S. J.

doi:10.1103/physrevc.99.044605

Title: Strongly resonating bosons in hot nuclei

Journal Article · Tue Apr 16 00:00:00 EDT 2019 · Physical Review. C

DOI:https://doi.org/10.1103/physrevc.99.044605· OSTI ID:1610249

Zhang, S. ^[1]; Bonasera, A. ^[2]; Huang, M. ^[1]; Zheng, H. ^[3]; Wang, D. X. ^[1]; Wang, J. C. ^[1]; Lu, L. ^[1]; Zhang, G. ^[4]; Kohley, Z. ^[5]; Ma, Y. G. ^[6]; Yennello, S. J. ^[5]

Inner Mongolia Univ. for Nationalities, Tongliao (China)
Texas A & M Univ., College Station, TX (United States); INFN, Catania (Italy)
Shaanxi Normal Univ., Xian (China)
Chinese Academy of Sciences, Shanghai (China)
Texas A & M Univ., College Station, TX (United States)
Chinese Academy of Sciences, Shanghai (China); Fudan Univ., Shanghai (China); Chinese Academy of Sciences, Beijing (China)

When two heavy ions near the Fermi energy collide, a warm and low-density region can form in which fragments appear. This region is mainly dominated by proton (p) and alpha (α) particles. In such an environment, the α particles interact with each other and, especially through strong resonances, form complex systems such as ⁸Be and ¹²C. Our experiments show that ⁷⁰⁽⁶⁴⁾Zn(⁶⁴Ni) + ⁷⁰⁽⁶⁴⁾Zn(⁶⁴Ni) reactions at E/A = 35 MeV/nucleon levels of 8Be appear around relative energies E_ij = 0.092 MeV, 3.03 MeV as well as above 10 and 100 MeV. We propose a different method to derive the correlation function based on the relative transverse energy distribution to minimize the experimental uncertainties. For the 3α systems, multiresonance processes give rise to excited levels of ¹²C. For instance, the Hoyle state at 7.654 MeV excitation energy shows a decay component through the ground state of ⁸Be and also components where two different α couples are at relative energies consistent with the ground state of ⁸Be at the same time.

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Research Organization:: Texas A & M Univ., College Station, TX (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: FG02-93ER40773; NA0003841

OSTI ID:: 1610249

Alternate ID(s):: OSTI ID: 1507214

Journal Information:: Physical Review. C, Vol. 99, Issue 4; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 11 works

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