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Abstract
A bootstrap calculation of a linearly rising rho Regge trajectory is
performed using the Balázs method of decoupling the N/D equations, with the
left-hand cut approximated by 7 poles. The input rho mass and width are
taken as the experimental values of 750 MeV and 100 MeV respectively. The
value of the bootstrapped slope is 0.701 GeV-2 corresponding to an input
intercept of [alpharho(0)]in=0.605, an output
intercept of [alpharho(0)]out=0.608,
an output rho mass of (mrho)out=747 MeV, and an output
rho width of (Delta mrho)out=71 MeV. The sensitivity of the results to the details of the
calculation is studied extensively. The details of the Balázs method are
given as well as some techniques of handling the method in an approximation
with a large number of poles.
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