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Dyck Words and Multi-Quark Primitive Amplitudes
I study group theory (Kleiss-Kuijf) relations between purely multi-quark primitive amplitudes at tree level, and prove that they reduce the number of independent primitives to (n-2)!/(n/2)!, where n is the number of quarks plus antiquarks, in the case where quark lines have different flavours. I giv...
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| Lenguaje: | eng |
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2013
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| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.88.014020 http://cds.cern.ch/record/1545128 |