The 12C(n, p)12B reaction at En = 98 MeV

Olsson, N.; Condé, H.; Ramström, E.; Rönnqvist, T.; Zorro, R.; Blomgren, J.; Håkansson, Ane; Tibell, G.; Jonsson, O.; Nilsson, L.; Renberg, P.‐U.; Brockstedt, A.; Ekström, Peter; Österlund, Michael; Werf, S.Y. van der; Millener, D.J.; Szeflińska, G.; Szefliński, Z.

doi:10.1016/0375-9474(93)90159-u

Cited by 30 publications

(22 citation statements)

References 28 publications

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“…These transitions are most likely due to pick-up of weakly bound protons in the target nucleus, 12 C. Less pronounced peaks are observed in the proton and triton spectra at forward angles. The peak at about 75 MeV in the 40 • proton spectrum probably corresponds to the 4.5 MeV excitation energy peak observed by Olsson et al [51] and attributed mainly to the 2 − and 4 − states in 12 B. The DWBA calculations of Ref.…”

Section: Resultssupporting

confidence: 59%

“…The DWBA calculations of Ref. [51] indicate a rather flat angular distribution from 0 • to 30 • in the c.m. system, which explains the pronounced peak seen in the spectrum.…”

Section: Resultsmentioning

confidence: 88%

“…A study of the spectroscopic strengths for these states has done by Olsson et al [51]. From this study it is concluded that the proton spectra from 3 He and α particles.…”

Section: -12mentioning

confidence: 92%

“…Olsson et al [51] have measured double-differential cross sections of the 12 C(n, p) 12 B reaction at E n = 98 MeV using the LISA magnet spectrometer. The data extend down to 30 MeV below the maximum proton energy and cover 0 • -30 • .…”

Section: A Comparison With Theoretical Model Calculationsmentioning

confidence: 99%

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Light-ion production in the interaction of 96 MeV neutrons with carbon

et al. 2009

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Double-differential cross sections for light-ion (p, d, t, 3He and alpha) production in carbon induced by 96 MeV neutrons have been measured at eight laboratory angles from 20 degrees to 160 degrees in steps of 20 degrees. Experimental techniques are presented as well as procedures for data taking and data reduction. Deduced energy-differential, angle-differential and production cross sections are reported. Experimental cross sections are compared with theoretical reaction model calculations and experimental data in the literature. The measured particle data show marked discrepancies from the results of the model calculations in spectral shape and magnitude. The measured production cross sections for protons, deuterons, tritons, 3He, and alpha particles support the trends suggested by data at lower energies.Comment: 40 pages, 18 figures, 3 table

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Section: Resultssupporting

confidence: 59%

“…The DWBA calculations of Ref. [51] indicate a rather flat angular distribution from 0 • to 30 • in the c.m. system, which explains the pronounced peak seen in the spectrum.…”

Section: Resultsmentioning

confidence: 88%

“…A study of the spectroscopic strengths for these states has done by Olsson et al [51]. From this study it is concluded that the proton spectra from 3 He and α particles.…”

Section: -12mentioning

confidence: 92%

Section: A Comparison With Theoretical Model Calculationsmentioning

confidence: 99%

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Light-ion production in the interaction of 96 MeV neutrons with carbon

et al. 2009

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“…Extensive experimental work on 12 C(n, p) 12 B reaction has been performed by N. Olsson et. al [10]. Recently a preprint has appeared in the LANL network by P. Vogel [11] in which detailed calculations show that the total strength does not depend on p 1/2 shell occupancy.…”

Section: ) Summed Strength -An Alternate Approachmentioning

confidence: 99%

The effects of deformation on isovector electromagnetic and weak transition strengths

Zamick

Auerbach

1999

Nuclear Physics A

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The summed strength for transitions from the ground state of 12 C via the operators st, ℓt, rY ′ t, r[Y ′ s] λ t and r[Y ′ ℓ] λ t are calculated using the ∆N = 0 rotational model. If we choose the z component of the isospin operator t z , the above operators are relevant to electromagnetic transitions; if we choose t + they are relevant to weak transitions such as neutrino capture. In going from the spherical limit to the asymptotic (oblate) limit the strength for the operator st decreases steadily to zero; the strength for the operator ℓτ (scissors mode) increases by a factor of three. For the last three operators -isovector dipole, spin dipole and orbital dipole (including the twist mode) it is shown that the summed strength is independant of deformation. The main difference in the behavior is that for the first two operators we have in-shell transitions whereas for the last three operators the transitions are out of shell.

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