中文

质子的反向自旋极化率$\gamma_\pi$

核实验 2013-06-26 v1 高能物理 - 实验 高能物理 - 唯象学

摘要

利用美因茨48cm\O×64cm48 cm {\O}\times 64 cm NaI(TI)探测器和分段式哥廷根反冲探测器SENECA符合测量,在MAMI(美因茨)上于θγlab=136\theta^{lab}_\gamma = 136^\circ处、200至470 MeV能量范围内测量了质子的康普顿散射。新数据证实了先前的观测结果,即MAMI与LEGS(布鲁克海文)数据之间存在系统性差异,分别导致自旋极化率γπ=38.7±1.8\gamma_\pi = - 38.7 \pm 1.827.2±3.1-27.2 \pm 3.1 (×104fm4)(\times 10^{-4}fm^4)

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引用

@article{arxiv.nucl-ex/0112015,
  title  = {Backward spin polarizability $\gamma_\pi$ of the proton},
  author = {M. Camen and K. Kossert and F. Wissmann and J. Ahrens and H. -J. Arends and R. Beck and G. Caselotti and P. Grabmayr and P. D. Harty and O. Jahn and P. Jennenwein and R. Kondratiev and M. I. Levchuk and V. Lisin and A. I. L'vov and J. C. McGeorge and A. Natter and V. Olmos de León and M. Schumacher and B. Seitz and F. Smend and A. Thomas and W. Weihofen and F. Zapadtka},
  journal= {arXiv preprint arXiv:nucl-ex/0112015},
  year   = {2013}
}