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arXiv 0709.1256hep-ex
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介子和重子光谱学所需的实验

Experiments needed in Meson and Baryon Spectroscopy

D. V. Bugg

摘要:

三个(或四个)简单的实验将大大有助于完成重子和轻介子的光谱学。在重子部门,数据需要从一个极化的目标与π和K介子束的非弹性反应高达3 GeV/c。在动量范围为0.3至2 GeV/c的pbar-p相互作用的轻介子部分也需要类似的数据。在这两种情况下,有价值的信息是从纵向(L)和横向(S)的目标偏振以及传统的正常(N)偏振。第三,质量范围在1 ~ 2.4GeV/c的3S_1和3D_1介子可能通过横向极化光子的衍射解离或利用横向和纵向极化电子的辐射返回实验分离。

英文摘要:

Three (or four) straightforward experiments would contribute greatly to completing the spectroscopy of baryons and light mesons. In the baryon sector, data are needed on inelastic reactions from a polarised target with pi and kaon beams up to 3 GeV/c. Similar data are needed in the light meson sector for pbar-p interactions in the momentum range 0.3 to 2 GeV/c. In both cases, valuable information is to be obtained from longitudinal (L) and sideways (S) target polarisations as well as the conventional normal (N) polarisation. Thirdly, 3S_1 and 3D_1 mesons in the mass range 1 to 2.4 GeV/c could probably be separated either by diffractive dissociation of transversely polarised photons or by radiative return experiments using transversely and longitudinally polarised electrons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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