\(p\)-adic open string amplitudes with Chan-Paton factors coupled to a constant \(B\)-field

DOI10.1016/J.NUCLPHYSB.2019.114904zbMATH Open1472.81194arXiv1909.09312OpenAlexW2996061415MaRDI QIDQ2230160

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Publication date: 17 September 2021

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Abstract: We establish rigorously the regularization of the p-adic open string amplitudes, with Chan-Paton rules and a constant B-field, introduced by Ghoshal and Kawano. In this study we use techniques of multivariate local zeta functions depending on multiplicative characters and a phase factor which involves an antisymmetric bilinear form. These local zeta functions are new mathematical objects. We attach to each amplitude a multivariate local zeta function depending on the kinematics parameters, the B-field and the Chan-Paton factors. We show that these integrals admit meromorphic continuations in the kinematic parameters, this result allows us to regularize the Goshal-Kawano amplitudes, the regularized amplitudes do not have ultraviolet divergences. Due to the need of a certain symmetry, the theory works only for prime numbers which are congruent to 3 modulo 4. We also discuss the limit p tends to 1 in the noncommutative effective field theory and in the Ghoshal-Kawano amplitudes. We show that in the case of four points, the limit p tends to 1 of the regularized Ghoshal-Kawano amplitudes coincides with the Feynman amplitudes attached to the limit p tends to 1 of the noncommutative Gerasimov-Shatashvili Lagrangian.

Full work available at URL: https://arxiv.org/abs/1909.09312

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