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arXiv 0804.3216hep-ph
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轻标量夸克-反夸克态的双光子衰变

Two-photon decay of a light scalar quark-antiquark state

Francesco Giacosa

摘要:

用定域和非定域方法计算了轻标量夸克偶素的双光子衰变。结果表明,双光子衰变,由三角形夸克环图驱动,小于1 keV的质量低于0.7 GeV。

英文摘要:

The two-photon decay of a light scalar quarkonium is evaluated in a local and a nonlocal approaches. It is shown that the two-photon decay, driven by a triangle quark-loop diagram, is smaller than 1 keV for a mass below 0.7 GeV.

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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