[Bubble] Impact of the 7Be(α,γ)11C reaction on the primordial abundance of 7Li

[Jay Benesch]

For your amusement I offer a posting on a reaction which might be 
possible to study via the photo-disintegration complement were it not 
for the 160 eV energy resolution required and the 270 keV energy.  Of 
course my reading may be way off.  And I haven't a clue as to the 
availability of a 11C target.

https://arxiv.org/abs/1803.06758

Impact of the 7Be(α,γ)11C reaction on the primordial abundance of 7Li
M. Hartos, C. A. Bertulani, Shubhchintak, A. M. Mukhamedzhanov, S. Hou
(Submitted on 18 Mar 2018)

     We calculate the radiative capture cross section for 7Be(α,γ)11C 
and its reaction rate for the big bang nucleosynthesis. The impact of 
this reaction on the primordial 7Li abundance is revised with the 
assumption of a narrow resonance in the low energy region. We show that 
such a resonance is unlikely to emerge within a two-body potential 
model. Taking the existence of this resonance for granted, we show that 
a small shift of its energy to a location right below the previously 
suggested value of Er=270 KeV, with a narrow width of 160 eV, can modify 
substantially the 7Li abundance and solve the cosmological lithium puzzle.

Comments: 	15 pages and 2 figures
Subjects: 	Nuclear Theory (nucl-th); Cosmology and Nongalactic 
Astrophysics (astro-ph.CO); Nuclear Experiment (nucl-ex)