Positivity of the Veneziano amplitude in D = 4
The Veneziano amplitude was put forward as a solution to the axioms of the S-matrix bootstrap. However, unitarity, reflected in the positivity of the coefficients in the Gegenbauer expansion of the amplitude is not obvious. In this note we compute the generating function of these coefficients in ter...
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Format: | Article |
Language: | English |
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Springer Science and Business Media Deutschland GmbH
2022
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Online Access: | View Fulltext in Publisher |