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arXiv 0710.4305nucl-th
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用等效光子方法计算重离子对撞机中束缚-自由对产生截面

Bound-free pair production cross section in heavy-ion colliders from the equivalent photon approach

Andreas Aste

摘要:

本文讨论了在不同核电荷下,单光子在核库仑场中产生电子-正电子对,同时电子被俘获到K壳层的精确计算。本文利用Weizsaecker和Williams的等效光子方法,导出了任意电荷核的超高能完全剥离重离子碰撞束缚-自由产生电子-正电子对的一个简单表达式。

英文摘要:

Exact calculations of the electron-positron pair production by a single photon in the Coulomb field of a nucleus with simultaneous capture of the electron into the K-shell are discussed for different nuclear charges. Using the equivalent photon method of Weizsaecker and Williams, a simple expression for the bound-free production of electron-positron pairs by colliding very-high-energy fully stripped heavy ions is derived for nuclei of arbitrary charge.

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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