New high precision study on the decay width of the Hoyle state in 12C
2019; Elsevier BV; Volume: 793; Linguagem: Inglês
10.1016/j.physletb.2019.04.028
ISSN1873-2445
AutoresT. K. Rana, S. Bhattacharya, C. Bhattacharya, S. Manna, Samir Kundu, K. Banerjee, R. Pandey, Pratap Roy, A. Dhal, G. Mukherjee, V. Srivastava, A. Dey, A. K. Chaudhuri, T. K. Ghosh, Amit Sen, Md. A. Asgar, T. Roy, J. K. Sahoo, Jitendra Kumar Meena, A. Saha, R. M. Saha, M. K. Sinha, Amit Roy,
Tópico(s)Atomic and Molecular Physics
ResumoPrecise estimation of the rare direct 3α decay of the Hoyle state of 12C has been made to unveil its unusual α-cluster configurations ranging from linear 3α chain structure to diffuse Bose gas as well as Bose Einstein condensate. The present new high precision, nearly zero background experimental study with 1.6×105 Hoyle events has converged on the upper limit for direct decay at ∼0.019% with 95% confidence limit, which is more than a factor of 2 lower than the limit obtained in the previous studies.
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