Application of Semilocal Coordinate-Space Regularized Chiral Forces to Elastic Nd Scattering and Breakup
Application of Semilocal Coordinate-Space Regularized Chiral Forces to Elastic Nd Scattering and Breakup
复制标题
半局域坐标空间正则手性力在弹性Nd散射和破碎中的应用
DOI：
10.1007/s00601-019-1485-0
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发表时间：
2019
期刊：
影响因子：
1.6
通讯作者：
Nogga A.
中科院分区：
文献类型：
--
作者：
Witaa H.;Golak J.;Skibiski R.;Topolnicki K.;Epelbaum E.;Hebeler K.;Kamada H.;Krebs H.;Meiner U.-G.;Nogga A.
本文在手征微扰理论的框架下，采用半局域坐标空间正则化的手征NLO NN势和同样正则化的手征NLO 3 NF，求解了含有核子-核子（NN）和三核子力（3 NF）的三核子（3 N）Faddeev方程.在此基础上研究了核子-氘弹性散射和氘破裂反应。我们检查的弹性Nd散射截面可以被用来作为一个替代的可观察的双重中子-氘（ND）散射长度固定，连同theH结合能，NLO 3 NF的接触项的强度。我们研究了在3 N连续反应中预测的3 NF效应，重点是低能和弹性散射的难题以及在空间-星星和准自由散射破裂构型中的截面。我们发现，非线性光学3 NF提供的效果与标准的，（半）现象交换图森-墨尔本3 NF。
We solve three-nucleon (3N) Faddeev equations with nucleon–nucleon (NN) and three-nucleon forces (3NF) derived consistently in the framework of chiral perturbation theory, taking the semilocal coordinate-space regularized chiral NLO NN potential supplemented by the chiral NLO 3NF regularized in the same way. Based on these solutions the nucleon–deuteron (Nd) elastic scattering and deuteron breakup reactions are studied. We checked that the elastic Nd scattering cross section can be used as an alternative observable to the doublet neutron–deuteron (nd) scattering length to fix, together with theH binding energy, the strengths of the contact terms of the NLO 3NF. We investigated the predicted 3NF effects in 3N continuum reactions putting an emphasis on thepuzzle in low energy nd elastic scattering and on cross sections in the symmetrical-space-star and quasi-free-scattering breakup configurations. We found that the NLO 3NF provides effects comparable to those of standard, (semi-)phenomenological-exchange Tucson-Melbourne 3NF.