paper

Perturbative width of open rigid strings

arXiv:1709.09446 · doi:10.1103/PhysRevD.105.094504

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.

36 Pages, 6 Figures, 4 Appendices

References in corpus (23)

Cited by in corpus (4)