Search for the Hoyle analogue state in $$^{16}$$O

Manna, S.; Rana, T. K.; Bhattacharya, C.; Kundu, S.; Pandey, R.; Banerjee, K.; Roy, Pratap; Sen, A.; Ghosh, T. K.; Mukherjee, G.; Mondal, Debashis; Shaikh, Md. Moin; Meena, Jitendra Kumar; Karmakar, P.; Paul, D.; Atreya, K.; Basu, Sourav; Srivastava, V.; Chaudhuri, A. K.; Roy, Tufan; Asgar, A.; Dey, A.; Dhal, A.; Sinha, M. K.; Sahoo, Jayakrushna; Saha, A.; Saha, Rajarshi; Bhattacharya, Subhashish

doi:10.1140/epja/s10050-021-00592-8

Cited by 6 publications

(4 citation statements)

References 22 publications

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“…Basically, the search for αBEC is carried out on the basis of compact spectrometers which provide a significant coverage of the solid angle in beams of light nuclei at several tens of MeV per nucleon [5,[8][9][10][11][12][13]. Placed in vacuum volumes near ultrathin targets the silicon detectors of the best energy resolution have been used in the experiments.…”

Section: Study Statusmentioning

confidence: 99%

“…The search was made for the decays of the 16 O(0 + 6 , 15.1 MeV) 20 Ne(12 MeV/nucleon) + 4 He [9] and 16 O(160, 280, 400 MeV) + 12 C states [11]. Recently, the data on 16 O(45 MeV) + 12 C → 4α in full kinematics [13] have been analyzed for all possible configurations. The excitation function was reconstructed directly from 4α, as well as for special decay channels such as 12 C(0 + 2 )α, 12 C(3 − 1 )α, and 2 8 Be.…”

Section: Study Statusmentioning

confidence: 99%

“…The study of unstable states has shown the opportunity of searching for more complex excitations in light nuclei -isobar-analogue states (IAS), indicating the rearrangement in the direction of similarity with less stable isobars having less α-clustering. Despite the high energy (13)(14)(15)(16)(17)(18), IASs are distinguished by widths Γ smaller than those of neighboring excitations, associated with the prohibition of their decays along the isospin ∆T = 1, i.e., with increasing in α-clustering. It can be assumed that the IAS in light nuclei excite the hn and tp configurations with T = 1 up to the coupling threshold (Fig.…”

Section: Isobar Analog States In Light Nucleimentioning

confidence: 99%

“…The initial goal is to determine the contributions 8 Be, 9 B, and HS. Since 14 N fragmentation is the source of 3αp ensembles, another object is the 13 N(15.065) IAS with isospin T = 3/2 in the 13 N excitation spectrum at 5.6 MeV above the 9 Bα threshold. As a consequence of the isospin prohibition, the width of 13 N * (15.065) is only Γ = 0.86 keV.…”

Section: Isobar Analog States In Light Nucleimentioning

confidence: 99%

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Prospects of searching for unstable nucleus states in relativistic nuclear fragmentation

Aretemenkov¹,

Bradnova²,

Kashanskaya³

et al. 2022

Preprint

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The article is dedicated to the experimental study in the relativistic approach to the problems of nuclear cluster physics for the prospects of the BECQUEREL experiment. The nuclear emulsion method applied in this experiment makes it possible to study thoroughly the relativistic final states in the fragmentation of nuclei. The focus of the presented research is the dynamics of emergence of the 8 Be nucleus and the Hoyle state, as well as the search for the 4α-particle condensate decaying via the above nuclear states. In this context, the analysis of exposure to 84 Kr nuclei at 950 MeV/nucleon is shown. As a continuation of the study of light nuclei, we have demonstrated the search for the isobar-analogue state of the 13 N nucleus in the fragmentation of 14 N nuclei at 2 GeV/nucleon.

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Section: Study Statusmentioning

confidence: 99%

Section: Study Statusmentioning

confidence: 99%

Section: Isobar Analog States In Light Nucleimentioning

confidence: 99%

Section: Isobar Analog States In Light Nucleimentioning

confidence: 99%

See 2 more Smart Citations

Prospects of searching for unstable nucleus states in relativistic nuclear fragmentation

Aretemenkov¹,

Bradnova²,

Kashanskaya³

et al. 2022

Preprint

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show abstract

Clusters in light nuclei: history and recent developments

Lombardo,

Dell’Aquila

2023

Riv. Nuovo Cim.

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In this review, we discuss recent advancements in the study of clustering phenomena occurring in light nuclei, and their influence on nuclear structure, dynamics, and astrophysics. In the introduction, we outline the historical steps leading to the concept of $$\alpha $$ α -clusterization in nuclei and provide a comprehensive description of the evolution of nuclear models capable to describe clustering aspects in nuclear systems and of the main experiments and discoveries leading to the development of this research field. We also describe some spectroscopic techniques that are used to establish the clustered nature of a given nuclear state. Some relevant experimental and theoretical findings recently reported both in experimental and theoretical works are discussed in the text. We put emphasis on recent achievements and remaining problems in the description of the structure of light isotopes, from helium to neon, including both self- and non-self-conjugate nuclei. Particular attention to the implication in the nuclear astrophysics context and to clustering effects in the dynamics of nuclear reactions is pursued all along the review.

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Clustering in nuclei: progress and perspectives

Wei,

Ye,

Yang

2024

NUCL SCI TECH

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Nucleus is essentially composed of protons and neutrons, which are commonly known as nucleons. Interestingly, some of nucleons may group together and exhibit collective behavior inside a nucleus. Such clustering effects have been known since the early stages of nuclear physics because of the observation and description of α-cluster decay from many heavy nuclei. Subsequent studies demonstrated that cluster structures exist in many nuclear systems, especially in weakly bound or excited states, and are complementary to the shell-like structures. In this review article, we provide a brief historical recall of the field, and follow it with a conceptual and logical description of the major theoretical models that have been frequently applied in the literature to describe nuclear clustering. Experimental methods and progress are outlined, recent outcomes are emphasized, and perspectives relevant to future studies of heavy neutron-rich systems are discussed.

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Search for the Hoyle analogue state in $$^{16}$$O

Cited by 6 publications

References 22 publications

Prospects of searching for unstable nucleus states in relativistic nuclear fragmentation

Prospects of searching for unstable nucleus states in relativistic nuclear fragmentation

Clusters in light nuclei: history and recent developments

Clustering in nuclei: progress and perspectives

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