تقرير
A Cluster Bootstrap for Two-Loop MHV Amplitudes
| العنوان: | A Cluster Bootstrap for Two-Loop MHV Amplitudes |
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| المؤلفون: | Golden, John, Spradlin, Marcus |
| سنة النشر: | 2014 |
| المجموعة: | High Energy Physics - Theory |
| مصطلحات موضوعية: | High Energy Physics - Theory |
| الوصف: | We apply a bootstrap procedure to two-loop MHV amplitudes in planar N=4 super-Yang-Mills theory. We argue that the mathematically most complicated part (the $\Lambda^2 B_2$ coproduct component) of the n-particle amplitude is uniquely determined by a simple cluster algebra property together with a few physical constraints (dihedral symmetry, analytic structure, supersymmetry, and well-defined collinear limits). We present a concise, closed-form expression which manifests these properties for all n. Comment: v2: a few comments added |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1007/JHEP02(2015)002 |
| URL الوصول: | http://arxiv.org/abs/1411.3289 |
| رقم الأكسشن: | edsarx.1411.3289 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1007/JHEP02(2015)002 |
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