Radiative proton capture to excited states inO16

1989 ◽  
Vol 39 (2) ◽  
pp. 340-346 ◽  
Author(s):  
J. D. Kalen ◽  
H. J. Hausman ◽  
A. Abduljalil ◽  
W. Kim ◽  
D. G. Marchlenski ◽  
...  
1977 ◽  
Vol 285 (2) ◽  
pp. 189-197 ◽  
Author(s):  
K.A. Snover ◽  
P. Paul ◽  
H.M. Kuan

1970 ◽  
Vol 152 (2) ◽  
pp. 257-262 ◽  
Author(s):  
A.R. Barnett ◽  
N.W. Tanner

1980 ◽  
Vol 58 (3) ◽  
pp. 359-362 ◽  
Author(s):  
B. E. Cooke ◽  
J. R. Leslie ◽  
W. McLatchie ◽  
P. Skensved

Excited states in 59Cu and 63Cu have been studied with radiative proton capture. Doppler shift attenuation factors have been measured for γ-rays depopulating these states, with ion recoil speeds of approximately 0.1% of the speed of light. Measurements of resonance strengths reported here, together with existing data from other techniques, have been used to deduce lifetimes for the same states. For five cases where the DSA factors and the lifetimes have been determined independently, consistency with DSAM theory is optimized when the standard energy loss value is multiplied by a factor of 0.94 ± 0.11.


1955 ◽  
Vol 99 (5) ◽  
pp. 1339-1344 ◽  
Author(s):  
E. B. Paul ◽  
H. E. Gove ◽  
A. E. Litherland ◽  
G. A. Bartholomew

1987 ◽  
Vol 467 (3) ◽  
pp. 397-406 ◽  
Author(s):  
Z. Szefliński ◽  
G. Szeflińska ◽  
H.V. Klapdor ◽  
K. Grotz ◽  
J. Metzinger ◽  
...  

1976 ◽  
pp. 266-270
Author(s):  
S.S. Hanna ◽  
H.F. Glavish ◽  
G. King ◽  
J.R. Calarco ◽  
D.G. Mavis ◽  
...  

1983 ◽  
Vol 27 (5) ◽  
pp. 1837-1865 ◽  
Author(s):  
K. A. Snover ◽  
E. G. Adelberger ◽  
P. G. Ikossi ◽  
B. A. Brown

2020 ◽  
Vol 29 (01) ◽  
pp. 1930007 ◽  
Author(s):  
Sergey Dubovichenko ◽  
Nataliya Burkova ◽  
Albert Dzhazairov-Kakhramanov ◽  
Bekmurza Beysenov

Review of calculation results for astrophysical [Formula: see text]-factor of the [Formula: see text]N[Formula: see text]O capture reaction in the [Formula: see text]N channel of [Formula: see text]O was presented. It was carried out in the frame of the modified potential cluster model (MPCM) taking into account resonances in the [Formula: see text]O spectrum up to 3.2[Formula: see text]MeV at energy of incident protons varying of 30[Formula: see text]keV to 5[Formula: see text]MeV. It is possible to describe experimental data for the astrophysical [Formula: see text]-factors of the radiative proton capture on [Formula: see text]N to five excited states of [Formula: see text]O at excitation energies of 5.18[Formula: see text]MeV to 6.86[Formula: see text]MeV, only under assumption, that all five resonances are [Formula: see text] scattering waves. Quality new physical interpretation of the capture mechanism is discussed in this channel to the ground state of [Formula: see text]O. We assumed that the ground state of [Formula: see text]O is determined by the [Formula: see text]N[Formula: see text] channel with excited [Formula: see text]N[Formula: see text] cluster, which immediately allowed us to correctly describe order of values of the experimental [Formula: see text]-factor for capture to this state. Taking into account these results, the total [Formula: see text]-factor of the proton capture on [Formula: see text]N and the reaction rates to the ground and five excited states of [Formula: see text]O were determined at temperatures of 0.01[Formula: see text][Formula: see text] to 10[Formula: see text][Formula: see text]. The parametrization of the total reaction rate with a simple form is performed, which allows as to obtain [Formula: see text] equal to 0.06 with 5% errors of the calculated rate.


1977 ◽  
Vol 30 (4) ◽  
pp. 417 ◽  
Author(s):  
GU Din ◽  
B Heusch

The 42Ca(p, y)43SC reaction has been studied below 2�75 MeV proton bombarding energy. Approximately 100 resonances have been identified and located in the range Ep = 2�00-2�75 MeV. Nine resonances at Ep = 1045, 1201, 1299, 1319, 2038, 2471, 2523, 2643 and 2714 keV for the 42Ca(p, y)43SC reaction were investigated with either a 54 or a 120 cm3 Ge(Li) detector. Single spectra were obtained at each of these resonances, and these were used to derive consistent y ray decay schemes and accurate level energies for the resonant and bound levels of 43Sc. Fifty-two bound levels up to an excitation energy of 4�47 MeV were observed, out of which seventeen new levels have been identified at 2�114,2� 796,2' 846,2' 860,2' 875,3 '160,3' 331,3' 374,3 '463,3;504,3' 645, 3'734,3'757,3'860,4'007,4'038 and 4�430 MeV. In addition, new results or results differing from earlier reports have been obtained for the decay properties of levels below 4�47 MeV in 43SC? The strengths of the nine resonances were measured relative to the reported strength at Ep = 2038 keV. The resonance at Ep = 2643 keV was shown for the first time to populate levels of spin> 7/2 via the proton capture reaction. A strong M1 (analogue to anti-analogue) transition from the resonance level to the level at 1� 931 MeV (9/2+) was observed. From measurements of y ray angular distributions, the following spin and parity assignments were made: 9/2+ at 7'514, 7/2+ at 4'371, >7/2 at 4'038 and 7/2 at 3�808 MeV. The resonance level at 7�514 MeV has possibly aT = 3/2 character. The low-lying excited states in 43SC are in reasonable agreement with the theoretical predictions of Johnstone (1968).


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