New constraints on D-state contributions to the trinucleon wave functions

Determination of the asymptoticD- toS-state ratio of the triton from sub-Coulomb (d→,t) reactions

“…A careful study was performed in evaluating other sources of error which contribute to the uncertainty in gq. The present high-precision result disagrees with a weighted average of previous experimental determinations [19] (riq ---0.054 + 0.0013), but is in agreement with the recent measurement of George and Knutson [18] (rid ---0.0431+0.0025). In addition, it is close to the average of experimental determinations made of g for He (risH = -0.037 + 0.003) [19].…”

“…This final result is shown by the solid line (with the dashed lines the error limits) in Fig. 2 Reference [19] is the result obtained by Vuaridel et aL, [18] is the result obtained by George and Knutson, [2] is the Sendai group calculation, and [4] is the Los Alamos group calculation.…”

“…They performed an extensive evaluation of the uncertainty in gq and obtained a value for gq ---0.0431 +0.0025. A determination from the extrapolation method of TAP's to the nucleon-transfer pole was made by Vuaridel et al [19] yielding a value of gq ---0.050 6 0.006. However, Londergan, Price, and Stevenson [20] have questioned this technique as one which underestimates the actual errors.…”

The nucleon-nucleon interaction

“…• g π is large, g 2 π /4π 14.0: The deuteron Q is well reproduced, but η is predicted too large as compared with the most recent measurement by Rodning and Knutsen [62], η = 0.0256(4). Note, however, that all earlier measurements of η came up with a larger value; for example, Borbely et al [78] obtained η = 0.0273 (5). There are no objectively verifiable reasons why the latter value should be less reliable than the former one.…”