Quark-gluon amplitudes in the dual expansion |
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| Institution: | 1. Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India;2. Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India;3. Department of Physics, Indian Institute of Science, Bangalore, 560012, India;1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China;2. Laboratoire de Mathématiques et de Physique Théorique, Université de Tours, France;1. Department of Physics, Pukyong National University, Busan 48513, Republic of Korea;2. Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 37673, Republic of Korea;3. Departemen Fisika, FMIPA, Universitas Indonesia, Kampus UI Depok 16424, Indonesia;4. Universidade Cidade de Sao Paulo (UNICID) and Universidade Cruzeiro do Sul, 01506-000, São Paulo, SP, Brazil |
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| Abstract: | The dual representation, which gives a simple analytical form for purely gluonic amplitudes, is extended to amplitudes which include a quark-antiquark pair. To minimize the calculations, supersymmetry is used to relate the purely gluonic amplitudes to those including a gluino pair from which the quark-antiquark amplitudes are easily deduced. We explicitly give simple analytical forms for the full amplitudes for those multi-parton processes which involve a quark-antiquark pair plus two, three and four gluons. |
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