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<p>We compute analytically greybody factors for asymptotically flat spherically symmetric black holes with stringy higher derivative corrections in <i>d</i> dimensions in the high frequency limit. Our calculations include both the eikonal limit - where the real part of the frequency of the scattered wave is much larger than the imaginary part - and the highly damped case - where the imaginary part of the frequency is much larger than the real part -, addressing the emission of gravitons and test scalar fields, and yielding full transmission and reflection scattering coefficients.</p>

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Greybody factors of string-corrected d-dimensional black holes

  • 期刊论文

  • 发表日期：

    2025年10月25日

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  • Filipe Moura,
  • João Rodrigues

摘要

We compute analytically greybody factors for asymptotically flat spherically symmetric black holes with stringy higher derivative corrections in d dimensions in the high frequency limit. Our calculations include both the eikonal limit - where the real part of the frequency of the scattered wave is much larger than the imaginary part - and the highly damped case - where the imaginary part of the frequency is much larger than the real part -, addressing the emission of gravitons and test scalar fields, and yielding full transmission and reflection scattering coefficients.