Coherent gluon radiation: beyond leading-log accuracy
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Acceso en línea: | |
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| _version_ | 1866913371592327168 |
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| author | Jackson, Greg Peigné, Stéphane Watanabe, Kazuhiro |
| author_facet | Jackson, Greg Peigné, Stéphane Watanabe, Kazuhiro |
| contents | Results are presented for the medium-induced, soft coherent radiation spectrum for all $2\to 2$ partonic channels in QCD, at leading-order in $α_s$ but beyond leading logarithmic accuracy. The general formula is valid in the full kinematic range of the underlying process, and reduces to previous results in special cases. The soft gluon radiation spectrum is expressed in terms of the color density matrix specific to each channel, quantifying the entanglement between the color components of the $2 \to 2$ production amplitude. Beyond the leading logarithm, the spectrum depends explicitly on the off-diagonal elements of this matrix, owing to the soft gluon's ability to probe the internal color structure of the parton pair. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_11650 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Coherent gluon radiation: beyond leading-log accuracy Jackson, Greg Peigné, Stéphane Watanabe, Kazuhiro High Energy Physics - Phenomenology Results are presented for the medium-induced, soft coherent radiation spectrum for all $2\to 2$ partonic channels in QCD, at leading-order in $α_s$ but beyond leading logarithmic accuracy. The general formula is valid in the full kinematic range of the underlying process, and reduces to previous results in special cases. The soft gluon radiation spectrum is expressed in terms of the color density matrix specific to each channel, quantifying the entanglement between the color components of the $2 \to 2$ production amplitude. Beyond the leading logarithm, the spectrum depends explicitly on the off-diagonal elements of this matrix, owing to the soft gluon's ability to probe the internal color structure of the parton pair. |
| title | Coherent gluon radiation: beyond leading-log accuracy |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2312.11650 |