<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>α</mml:mi></mml:math>
-conjugate neck structures in the collisions of 35 MeV/nucleon 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Ca</mml:mi><mml:mprescripts /><mml:none /><mml:mn>40</mml:mn></mml:mmultiscripts></mml:math>
 with 
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Schmidt, K.; Cao, X. G.; Kim, E. J.; Hagel, K.; Barbui, M.; Gauthier, J.; Wuenschel, S.; Giuliani, G.; Rodrigues, M. R. D.; Zheng, H.; Huang, M.; Blando, N.; Bonasera, A.; Wada, Roy; Botosso, C.; Liu, G.; Viesti, G.; Moretto, S.; Prete, G.; Pesente, S.; Fabris, D.; Masri, Y. El; Keutgen, T.; Kowalski, S.; Kumar, Ashok; Zhang, G.; Natowitz, J. B.

doi:10.1103/physrevc.95.054618

Cited by 18 publications

(3 citation statements)

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“…In Refs. [26][27][28], an analysis was performed for events shown in Fig. 3 in terms of boson-fermion mixtures, i.e.…”

Section: Experiments πmentioning

confidence: 99%

Triple α -particle resonances in the decay of hot nuclear systems *

Zhang¹,

Wang²,

Bonasera³

et al. 2019

Chinese Phys. C

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The Efimov (Thomas) trimers in excited 12 C nuclei, for which no observation exists yet, are discussed by means of analyzing the experimental data of 70(64) Zn( 64 Ni) + 70(64) Zn( 64 Ni) reactions at beam energy of E/A=35 MeV/nucleon. In heavy ion collisions, the αs interact with each other and can form complex systems such as 8 Be and 12 C. For the 3α systems, multi resonance processes give rise to excited levels of 12 C. The interaction between any two of the 3α particles provides events with one, two or three 8 Be. Their interfering levels are clearly seen in the minimum relative energy distributions. Events of three couple α relative energies consistent with the ground state of 8 Be are observed with the decrease of the instrumental error at the reconstructed 7.458 MeV excitation energy of 12 C, which was suggested as the Efimov (Thomas) state.

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“…In Refs. [26][27][28], an analysis was performed for events shown in Fig. 3 in terms of boson-fermion mixtures, i.e.…”

Section: Experiments πmentioning

confidence: 99%

Triple α -particle resonances in the decay of hot nuclear systems *

Zhang¹,

Wang²,

Bonasera³

et al. 2019

Chinese Phys. C

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“…It becomes possible to establish a connection with the low energy studies [9][10][11]. The effect of relativistic collimation makes it possible not only to study the generation of 8 Be, 9 B and HS, but also to search for unstable states of increasing complexity decaying through them 2 [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Correlation in formation of $^{8}$Be nuclei and $α$-particles in fragmentation of relativistic nuclei

Zaitsev,

Artemenkov,

Glagolev

et al. 2021

Preprint

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In the events of peripheral dissociation of relativistic nuclei in the nuclear track emulsion, it is possible to study the emerging ensembles of He and H nuclei, including those from decays of the unstable 8 Be and 9 B nuclei, as well as the Hoyle state. These extremely short-lived states are identified by invariant masses calculated from the opening angles in 2α-pairs, 2αp-and 3αtriplets in the approximation of conservation of momentum per nucleon of the primary nucleus.In the same approach, it is possible to search for more complex states. This paper explores the correlation between the formation of 8 Be nuclei and the multiplicity of accompanying α-particles in the dissociation of relativistic 16 O, 22 Ne, 28 Si, and 197 Au nuclei. On this basis, estimates of such a correlation are presented for the unstable 9 B nucleus and the Hoyle state. An enhancement in the 8 Be contribution to dissociation with the α-particle multiplicity is found. Decays of 9 B nuclei and Hoyle states follow the same trend.

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“…Whether and how the properties of nuclear resonances and states are modified when fragments are formed and disrupted within a nuclear medium is not well known, and the most typical example concerns the Hoyle states in autoconjugate nuclei. Indeed, various efforts have been done or are in progress in this direction using reactions at various bombarding regimes, from Tandem energies like the one in this paper [9,10] to higher energies [10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Experimental study of precisely selected evaporation chains in the decay of excited Mg25

et al. 2018

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The reaction 12 C + 13 C at 95 MeV bombarding energy is studied using the GARFIELD + Ring Counter apparatus located at the INFN Laboratori Nazionali di Legnaro. In this paper we want to investigate the de-excitation of 25 Mg aiming both at a new stringent test of the statistical description of nuclear decay and a direct comparison with the decay of the system 24 Mg formed through 12 C+ 12 C reactions previously studied. Thanks to the large acceptance of the detector and to its good fragment identification capabilities, we could apply stringent selections on fusion-evaporation events, requiring their completeness in charge. The main decay features of the evaporation residues and of the emitted light particles are overall well described by a pure statistical model; however, as for the case of the previously studied 24 Mg, we observed some deviations in the branching ratios, in particular for those chains involving only the evaporation of α particles. From this point of view the behavior of the 24 Mg and 25 Mg decay cases appear to be rather similar. An attempt to obtain a full mass balance even without neutron detection is also discussed.

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α -conjugate neck structures in the collisions of 35 MeV/nucleon Ca40 with Ca40

Cited by 18 publications

References 50 publications

Triple α -particle resonances in the decay of hot nuclear systems *

Triple α -particle resonances in the decay of hot nuclear systems *

Correlation in formation of $^{8}$Be nuclei and $α$-particles in fragmentation of relativistic nuclei

Experimental study of precisely selected evaporation chains in the decay of excited Mg25

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