Investigation of the reaction 2H(n, np) at θn = 0°

Kecskeméti, J.; Czibók, T.; Zeitnitz, B.

doi:10.1016/0375-9474(75)90585-0

Cited by 28 publications

(2 citation statements)

References 12 publications

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“…Previous experiments have reported on cross-section measurements of the breakup of a deuteron in the region far from the final-state-interaction (FSI) peak, which is sensitive only to the scattering length α NN . In these past measurements a significant difference as compared to the available calculations in the evaluated nuclear libraries (Nuclear Data Services) was observed [8][9][10]. Therefore, it is necessary to measure the reaction in the region far from the FSI dominance, where the cross section may be more sensitive to the 3NF effect.…”

Section: Introductionmentioning

confidence: 99%

Deuteron breakup induced by 14-MeV neutrons from inertial confinement fusion

et al. 2019

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Measurements are reported for the angle-averaged double-differential cross section 2 n n 0 < <7.4 d d d E θ σ°Ω° for the breakup reaction 2 H(n,2n) 1 H, induced by 14-MeV neutrons generated using an inertial confinement fusion platform. A bright neutron source, created on the OMEGA Laser System [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] with a luminosity of L = 10 24 s-1 , was used to irradiate deuterated targets. The absolute yields and energy spectra from the breakup neutrons emitted in a forward-angle geometry (θ = 0° to 7.4°) were detected with a sensitive, highdynamic-range neutron time-of-flight spectrometer. The cross-section data, measured for neutron energy range from 0.5-to 10-MeV, are well reproduced by theoretical model calculation employing realistic nucleon-nucleon and three-nucleon forces.

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Section: Introductionmentioning

confidence: 99%

Deuteron breakup induced by 14-MeV neutrons from inertial confinement fusion

et al. 2019

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“…While there have been several recent measurements of a nn to resolve a long-standing discrepancy [13][14][15], measurements of r nn have not been published for over 40 years. Early experiments determined r nn from the nn final state interaction (FSI) in various scattering systems but had large uncertainties and were not consistent [16][17][18][19]. Gabioud et al extracted both a nn and r nn based on measurements of the photon energy spectrum from the reaction 2 H(π − , γ)2n and achieved the most precise result to date, r nn = 2.80 ± 0.11 (exp) ± 0.11 (theory), consistent with charge symmetry [20][21][22].…”

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confidence: 99%

Measurement of the $^1S_0$ neutron-neutron effective range in neutron-deuteron breakup

Malone¹,

Crowell²,

Cumberbatch³

et al. 2022

Preprint

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We report the most precise determination of the neutron-neutron effective range parameter (rnn) from neutron-neutron quasifree scattering in neutron-deuteron breakup. The experiment setup utilized a collimated beam of 15.5 MeV neutrons and an array of eight neutron detectors positioned at angles sensitive to several quasifree scattering kinematic configurations. The two neutrons emitted from the breakup reaction were detected in coincidence and time-of-flight techniques were used to determine their energies. The beam-target luminosity was measured in-situ with the yields from neutron-deuteron elastic scattering. The value of rnn was determined by comparing our crosssection data to rigorous Faddeev-type calculations using the CD Bonn nucleon-nucleon potential. We obtained a value of rnn = 2.86 ± 0.01 (stat) ± 0.10 (sys) fm. This result was confirmed using a semilocal momentum-space regularized N 4 LO + chiral interaction potential.

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On the Present Status of the Problem of Charge Dependence and Charge Asymmetry of the Nucleon‐Nucleon Force

Guratzsch

Kühn

1982

Annalen der Physik

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A b s t r a c t . The charge dependence of the nucleon-nucleon force can be derived from the lowenergy scattering parameters. The p-p and n-p parameters were measured in direct scattering experiments. The n-n parameters a , , = (-16.70 j , 0.38) fm and r,, = (2.78 & 0.13) fm have been determined from few particle reactions. The difference of the scattering lengths (u,, -a,,) 4 7 fm demonstrates the violation of the charge independence. Information on the charge symmetry is still doubtful due to the inaccuracy of the charge correction for the p-p parameters. Whereas the n-n and the charge corrected p-p parameters known a t present yield a weaker n-n force than the p-p force, the opposite result follows from the binding energy difference for 3He and 3H and the meson theory of the nuclear forces.

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Investigation of the reaction 2H(n, np) at θn = 0°

Cited by 28 publications

References 12 publications

Deuteron breakup induced by 14-MeV neutrons from inertial confinement fusion

Deuteron breakup induced by 14-MeV neutrons from inertial confinement fusion

Measurement of the $^1S_0$ neutron-neutron effective range in neutron-deuteron breakup

On the Present Status of the Problem of Charge Dependence and Charge Asymmetry of the Nucleon‐Nucleon Force

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