T-functions and multi-gluon scattering amplitudes

Material type: 文書・図像類

Author: Hatsuda, Yasuyukiほか

Publisher: Springer-Verlag

Publication date: 2012-02

Material Format: Digital

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Note (General)：: We study gluon scattering amplitudes/Wilson loops in N=4 super Yang-Mills theory at strong coupling which correspond to minimal surfaces with a light-...

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Material Type: 文書・図像類
Title: T-functions and multi-gluon scattering amplitudes
Author/Editor: Hatsuda, Yasuyuki
Ito, Katsushi
Satoh, Yuji
Author Heading: Hatsuda, Yasuyuki
Ito, Katsushi
Satoh, Yuji
Publication, Distribution, etc.: Springer-Verlag
Publication Date: 2012-02
Publication Date (W3CDTF): 2012-02
Periodical title: Journal of High Energy Physics
No. or year of volume/issue: 2012 1202
Volume: 2012
Issue: 1202
ISSN (Periodical Title): ISSN : 1029-8479
Text Language Code: eng
Subject Heading: Integrable Equations in Physics
AdS-CFT Correspondence
Bethe Ansatz
Target Audience: 一般
Note (General): We study gluon scattering amplitudes/Wilson loops in N=4 super Yang-Mills theory at strong coupling which correspond to minimal surfaces with a light-like polygonal boundary in AdS3. We find a concise expression of the remainder function in terms of the T-function of the associated thermodynamic Bethe ansatz (TBA) system. Continuing our previous work on the analytic expansion around the CFT/regular-polygonal limit, we derive a formula of the leading-order expansion for the general 2n-point remainder function. The T-system allows us to encode its momentum dependence in only one function of the TBA mass parameters, which is obtained by conformal perturbation theory. We compute its explicit form in the single mass cases. We also find that the rescaled remainder functions at strong coupling and at two loops are close to each other, and their ratio at the leading order approaches a constant near 0.9 for large n.
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=24252&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=24252&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Related Material (DOI): 10.1007/JHEP02(2012)003
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ