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Probing near-barrier reaction dynamics with a ${}^{10}B$ projectile

Prabhat Mishra ^1,2, S. K. Pandit ^1,2,*, V. V. Parkar ^1,2,†, K. Mahata ^1,2, A. Shrivastava ^1,2, Satbir Kaur^1,2, D. Chattopadhyay ³, K. Ramachandran¹, Vineet Kumar ^1,2 et al.

Arati Chavan⁴, Sangeeta Dhuri ^1,2,‡, Prasanna M.^5,§, and S. Rathi ⁴

¹Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
²Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
³Department of Physics, The ICFAI University Tripura, Agartala 799210, India
⁴Vivekanand Education Society's College of Arts, Science and Commerce (Autonomous), Mumbai 400071, India
⁵Department of Physics, Rani Channamma University, Belagavi 591156, India

^*Contact author: sanat@barc.gov.in
^†Contact author: vparkar@barc.gov.in
^‡Present address: ELI-NP, Horia Hulubei National Institute for Physics and Nuclear Engineering, Str. Reactorului 30, Bucharest-Măgurele 077125, Romania.
^§Present address: Department of Physics, Government First Grade College, Honnavar 581334, India.

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Phys. Rev. C 114, 034608 – Published 10 September, 2026

DOI: https://doi.org/10.1103/dj7f-48fn

Abstract

Cluster structure of atomic nuclei, which plays a crucial role in the reaction mechanism, can be probed using breakup and transfer followed by breakup processes. The reaction mechanism, including breakup and transfer breakup, involving the ${}^{10}B$ nucleus has been investigated by performing charged particle coincidence measurements of $α − {}^{6}{Li}$ and $α − {}^{7}{Li}$ fragment pairs originating from the decay of resonant ${}^{10, 11}B^{*}$ states in the ${}^{10}B + {}^{209}{Bi}$ reaction at $E_{lab} = 53.7$ MeV $(E_{c . m .} / V_{B} \sim 1.02)$ . Breakup from various resonant states of ${}^{10, 11}B$ above their respective $α$ -decay threshold have been investigated. Angular distributions were extracted and benchmarked with coupled-channels calculations. Angle integrated cross sections for breakup following inelastic excitation and neutron pickup are found to be of similar magnitude. Statistical model calculations for the compound nuclear evaporation along with inclusive and exclusive data suggest that cluster transfer and/or capture of ${}^{3, 4}{He}$ are important in addition to breakup processes.

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References (62)

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Probing near-barrier reaction dynamics with a ${}^{10}B$ projectile

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Probing near-barrier reaction dynamics with a B10 projectile

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Probing near-barrier reaction dynamics with a ${}^{10}B$ projectile