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It is demonstrated that Burgers turbulence subject to large-scalewhite-noise-in-time random forcing has a universal power-law tail with exponent-7/2 in the probability density function of negative velocity gradients, aspredicted by E, Khanin, Mazel and Sinai (1997, Phys. Rev. Lett. 78, 1904). Aparticle and shock tracking numerical method gives about five decades ofscaling. Using a Lagrangian approach, the -7/2 law is related to the shape ofthe unstable manifold associated to the global minimizer.Comment: 4 pages, 2 figures, RevTex4, published versio

Universality of Velocity Gradients in Forced Burgers Turbulence