The 2H(3He, γ)5Li reaction from 2–26 MeV

Radiative 3He(2H,γ)5Li Capture at Astrophysical Energy and Its Possible Role in Accumulation of 6Li at the BBN

“…Once again we note that the most complete databases of nuclear data such as (EXFOR, 2013), as well as well-known atomic characteristics databases, for example, PHYSICS, CDFE, NASA DATA (Fundamental Physical Constants, 2010;Nuclear Wallet Cards database, 2014), contain only these data for total cross sections of 3 He( 2 H,γ) 5 Li capture at low energies. Besides them, however, there are several publications (Blair et al 1954;Kraus et al 1968;Del Bianco et al 1968;King et al 1972;Balbes et al 1994;Weller & Balbes 1998) in which measurements of the number of events observed in the experiment, polarizations, and differential capture cross sections are realized. Therefore, we perform a recalculation of some of the experimental measurements of these studies with the extraction of the total cross sections from them.…”

“…(Del Bianco et al 1968) for  0 + 1 ,  -from (Schroder & Mausberg 1970) for  0 , ◄ -from Ref. (King et al 1972) for  0 , ♦ for  0 and ◊ for  1 -from Aliotta et al 2001), ►-from (Weller & Balbes 1998;Balbes et al 1994) for  0 , the solid curve from (Kiptily et al 2006) for  0 .…”

“…Somewhat later King et al (1972) obtained the excitation functions of the reaction 2 H( 3 He,γ) 5 Li at θ γ,lab = 90º and E cm = 0.76-10.1 MeV for transitions to the ground and first excited states of 5 Li. Moreover in this work the sum of the differential cross sections for the transitions to the ground and first excited states of 5 Li at θ γ,lab.…”

“…For five energies, the angular distributions for these transitions were measured. King at al. (1972) presented a table with the ratios of the coefficients of the Legendre functions of A 2 /A 0 and A 1 /A 0 for the cases when the first two and first three terms of the expansion in describing these angular distributions are taking into account.…”

The 12C(3He, γ1+2)15O reaction in the giant dipole resonance region

“…To determine the number of counts in the y,+, peak, we unfolded the spectrum by a least squares fit method; the background was set equal to an exponential plus a constant function, Charge integrator calibration Target thickness Solid angle subtended by the NaI crystal collimator at the target Extrapolation of the y-ray spectrum Attenuation in paraffin between target and NaI crystal Efficiency of NaI crystal spectrometer Total and the three peaks for the yo, y, +, , and y(15.1) y-rays were represented with a line shape given by (10) with The peak-shape parameters in A(k) had previously been determined by a least squares fit to monoenergetic y-ray spectra of the ,H(p, y)4He reaction (1 1). Thus, eight free parameters were required for the fit of the 12C(3He, y) spectrum: the height and position of each of the peaks and two parameters for the background.…”