Partial transitions in radiative pion capture on light atomic nuclei

Dogotar, G.E.; Eramzhyan, R.A.; Kissener, H.R.; Sakaev, R.A.

doi:10.1016/0375-9474(77)90071-9

Cited by 18 publications

(2 citation statements)

References 19 publications

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“…Further, by comparing Figs. 2 (b) and (c), we can see that the effect of spurious components is almost as small as that 15 20 In fact, by comparing the wave functions in (i) and (iii), we find that the amplitudes of the configurations neglected in (iii) are less than ten percent. We must emphasize here that the configurations with a (2s-1d) particle coupled with the 5/2states of the A= 11 system play an important role in the giant resonance energy region, while they were neglected in the previous work of the radiative pion capture.…”

Section: :)2 Radiati·uc Jjion Cajj/urc 111 F!()')'jimentioning

confidence: 84%

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Radiative Pion Capture on 12C

Ohtsuka

Ohtsubo

1980

Progress of Theoretical Physics

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The spin-isospin vibration mode of the A=12 system 1s studied in the radiative pion capture by adopting the continuum shell model. The calculated spectra with strong excitation of the 1· state at 22.5 MeV and the 2· states at 18.9 MeV and 21.3 MeV, are in good agreement with the recent experiment. These 2-states are interpreted as the spin-isospin vibration mode, while the 1· at 22.5 MeV provides both the spin-isospin and isospin modes.1and 2states by adopting the nuclear shell model with configurations of 1-hw excitation. At the same time we treat the resonances and the quasi-free emission of nucleons consistently by adopting the continuum shell model (CSM) ." 0 '~2 3 ! This is quite important when we want to compare the theory with the experiment directly.w To calculate the pion capture rates, we adopt the formalism given in Refs. 20) and 24), which will be summarized briefly in § 2.In the continuum shell model, we encounter a difficult problem to eliminate the spurious components associated with the excitation of nuclear center-of-mass motion from the nuclear wave function, 25 )' 26 l and practically we are forced to abandon this by guest on August 16, 2015 http://ptp.oxfordjournals.org/ Downloaded from by guest on August 16, 2015 http://ptp.oxfordjournals.org/ Downloaded from

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Section: :)2 Radiati·uc Jjion Cajj/urc 111 F!()')'jimentioning

confidence: 84%

“…3 l.12l This reaction has been studied by many people theoretically. w. 15 l' 18 l. 20 l (See also the review article in Ref. 3) .…”

Section: § 1 Introductionmentioning

confidence: 99%