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arXiv · 1709.09446

Perturbative width of open rigid strings

A. S. Bakry·M. A. Deliyergiyev·A. Galal·M. N. Khalil
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Abstract

We present perturbative calculation of the width of the energy profile of rigid strings up to two loops in D dimensions. The perturbative expansion of the extrinsic curvature term signifying the rigidity/smoothness of the string in Polyakov-Kleinert action is taken around the free Nambu-Goto string. The mean-square width of the string field is derived for open strings with Dirichlet boundary condition. We compare the broadening of the smooth Polyakov-Kleinert string to the lattice Mont-Carlo data of the QCD flux tube just before the deconfinement point and find a good match at the intermediate and large color source separation.

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A. S. Bakry, M. A. Deliyergiyev, A. Galal, M. N. Khalil. 2017-09-27. Perturbative width of open rigid strings. https://doi.org/10.1103/physrevd.105.094504

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