具有精细质心系能量分辨率的 $K^+\Lambda$ 和 $K^+\Sigma^0$ 光生反应
核实验
2014-07-04 v3
摘要
利用 MAMI-C 的光子标记设施和 Crystal Ball 量热器，我们获得了 和 的截面测量值。该测量采用了一种新颖的 介子识别技术，即利用量热器中能量沉积的能量和时间特征来表征弱衰变产物，该方法具有应用于许多其他设施的潜力。新数据具备精细的质心系能量 () 分辨率和统计精度，对旨在更好确立核子激发谱的分波分析产生了显著影响。新的分析结果不支持夸克 - 双夸克动力学在核子中起重要作用的观点。
引用
@article{arxiv.1308.5659,
title = {$K^+\Lambda$ and $K^+\Sigma^0$ photoproduction with fine center-of-mass energy resolution},
author = {T. C. Jude and D. I. Glazier and D. P. Watts and P. Aguar-Bartolome and L. K. Akasoy and J. R. M. Annand and H. J. Arends and K. Bantawa and R. Beck and V. S. Bekrenev and H. Berghauser and A. Braghieri and D. Branford and W. J. Briscoe and J. Brudvik and S. Cherepnya and B. T. Demissie and M. Dieterle and E. J. Downie and L. V. Fil'kov and R. Gregor and E. Heid and D. Hornidge and I. Jaegle and O. Jahn and V. L. Kashevarov and I. Keshelashvili and R. Kondratiev and M. Korolija and A. A. Koulbardis and S. P. Kruglov and B. Krusche and V. Lisin and K. Livingston and I. J. D. MacGregor and Y. Maghrbi and D. M. Manley and Z. Marinides and T. Mart and M. Martinez and J. C. McGeorge and E. F. McNicoll and D. G. Middleton and A. Mushkarenkov and B. M. K. Nefkens and A. Nikolaev and V. A. Nikonov and M. Oberle and M. Ostrick and P. B. Otte and B. Oussena and P. Pedroni and F. Pheron and A. Polonski and S. Prakhov and J. Robinson and G. Rosner and T. Rostomyan and A. V. Sarantsev and S. Schumann and M. H. Sikora and D. I. Sober and A. Starostin and I. Strakovsky and I. M. Suarez and I. Supek and M. Thiel and A. Thomas and M. Unverzagt and D. Werthmueller and L. Witthauer and F. Zehr},
journal= {arXiv preprint arXiv:1308.5659},
year = {2014}
}
备注
7 pages, 8 figures