Cwebs in multiparton scattering amplitude: Structures at four loops
Soft function exponentiates in terms of the soft anomalous dimension ΓS; the Feynman diagrams contributing to it are called Cwebs. The colour and kinematics of a Cweb mix via a web mixing matrix – calculation of web mixing matrices at higher loop orders is a nontrivial task using replica trick. Here...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/24/epjconf_qcd@work2024_00024.pdf |
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| _version_ | 1850247453663559680 |
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| author | Agarwal Neelima Pal Sourav Srivastav Aditya Tripathi Anurag |
| author_facet | Agarwal Neelima Pal Sourav Srivastav Aditya Tripathi Anurag |
| author_sort | Agarwal Neelima |
| collection | DOAJ |
| description | Soft function exponentiates in terms of the soft anomalous dimension ΓS; the Feynman diagrams contributing to it are called Cwebs. The colour and kinematics of a Cweb mix via a web mixing matrix – calculation of web mixing matrices at higher loop orders is a nontrivial task using replica trick. Here I discuss a recent development of an efficient algorithm to find the Cwebs that are present at any loop order, and the result of mixing matrices, and exponentiated colour factors associated with Boomerang Cweb at four loops connecting three and four Wilson lines. |
| format | Article |
| id | doaj-art-e1117eba676f4e2da8447d03025ccfb8 |
| institution | OA Journals |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-e1117eba676f4e2da8447d03025ccfb82025-08-20T01:58:55ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013140002410.1051/epjconf/202431400024epjconf_qcd@work2024_00024Cwebs in multiparton scattering amplitude: Structures at four loopsAgarwal Neelima0Pal Sourav1Srivastav Aditya2Tripathi Anurag3Chaitanya Bharathi Institute of TechnologyPhysical Research LaboratoryIndian Institute of TechnologyIndian Institute of TechnologySoft function exponentiates in terms of the soft anomalous dimension ΓS; the Feynman diagrams contributing to it are called Cwebs. The colour and kinematics of a Cweb mix via a web mixing matrix – calculation of web mixing matrices at higher loop orders is a nontrivial task using replica trick. Here I discuss a recent development of an efficient algorithm to find the Cwebs that are present at any loop order, and the result of mixing matrices, and exponentiated colour factors associated with Boomerang Cweb at four loops connecting three and four Wilson lines.https://www.epj-conferences.org/articles/epjconf/pdf/2024/24/epjconf_qcd@work2024_00024.pdf |
| spellingShingle | Agarwal Neelima Pal Sourav Srivastav Aditya Tripathi Anurag Cwebs in multiparton scattering amplitude: Structures at four loops EPJ Web of Conferences |
| title | Cwebs in multiparton scattering amplitude: Structures at four loops |
| title_full | Cwebs in multiparton scattering amplitude: Structures at four loops |
| title_fullStr | Cwebs in multiparton scattering amplitude: Structures at four loops |
| title_full_unstemmed | Cwebs in multiparton scattering amplitude: Structures at four loops |
| title_short | Cwebs in multiparton scattering amplitude: Structures at four loops |
| title_sort | cwebs in multiparton scattering amplitude structures at four loops |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/24/epjconf_qcd@work2024_00024.pdf |
| work_keys_str_mv | AT agarwalneelima cwebsinmultipartonscatteringamplitudestructuresatfourloops AT palsourav cwebsinmultipartonscatteringamplitudestructuresatfourloops AT srivastavaditya cwebsinmultipartonscatteringamplitudestructuresatfourloops AT tripathianurag cwebsinmultipartonscatteringamplitudestructuresatfourloops |