Systematic investigation of the elastic proton-deuteron differential cross section at intermediate energies
Systematic investigation of the elastic proton-deuteron differential cross section at intermediate energies
复制标题
中能弹性质子-氘核微分截面的系统研究
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
H. Woertche
中科院分区：
文献类型：
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作者：
K. Ermisch;H. R. Amir;A. Berg;R. Castelijns;B. Davids;E. Epelbaum;E. Garderen;W. Gloeckle;J. Golak;M. Harakeh;M. Hunyadi;M. D. Huu;N. Kalantar;H. Kamada;M. Kiš;M. Mahjour;A. Nogga;R. Skibiński;H. Witała;H. Woertche
为了系统地研究在宽的中能范围内三核子力（3 NF）的重要性，测量了质子轰击能量为108，120，135，150，170和190 MeV时质子-氘弹性散射的微分截面.角度在30度和170度之间。与Faddeev计算的比较清楚地表明了只采用两体力计算的缺点和包括3 NF的必要性。他们还显示了最新的几个核子计算的限制，在向后的角度，特别是在更高的光束能量。其中一些差异可能部分归因于相对论效应。最低能量下的数据也与最近基于chiPT的计算进行了比较。
To investigate the importance of three-nucleon forces (3NF) systematically over a broad range of intermediate energies, the differential cross sections of elastic proton-deuteron scattering have been measured at proton bombarding energies of 108, 120, 135, 150, 170, and 190 MeV at c.m. angles between 30degrees and 170degrees . Comparisons with Faddeev calculations show unambiguously the shortcomings of calculations employing only two-body forces and the necessity of including 3NF. They also show the limitations of the latest few-nucleon calculations at backward angles, especially at higher beam energies. Some of these discrepancies could be partially due to relativistic effects. Data at lowest energy are also compared with a recent calculation based on chiPT .