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hep-ph2026
A Levinson's theorem for particle form factors
Francesco Rosini, Simone Pacetti
We present and demonstrate a version of Levinson's theorem especially dedicated to the asymptotic behavior of form factor phases. Indeed, as required by analyticity, form factors a…
hep-ph2000★ 2 cited
Resolution of a long standing discrepancy in R with spin zero quarks
S. Pacetti, Y. Srivastava
A previously successful dispersive method has been applied to understand different values for obtained by MARK I and Crystal Ball collaborations. We comp…