Year: 2025
Type: article
Abstract: We study the z g distribution for heavy flavor, i.e., bottom and charm quark, jets propagating through the dense QCD medium. We extend the late emission approximation for the Armesto-Salgado-Wiedemann formula to heavy flavors. We consider both the normalized and N jet normalized z g distributions, and the ratio of the latter distributions to the vacuum ones, called the R ratio. We demonstrate that since there is no collinear singularity in the medium, there is no principal need to use the Sudakov safety technique for medium-induced emission. We see that contrary to the vacuum case, the normalized z g distribution is sensitive to the dead-cone angle value. In particular, for the case of the N jet normalized distribution with θ g ≤ θ cut , it is possible to directly probe the dead-cone gluons in the medium. Our results can be useful to guide the experimental measurements of the heavy flavor jet substructure in a dense QCD medium.
Authors: Boris Blok, Chang Wu
Institution: Technion – Israel Institute of Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Award: G3400501796
OpenAlex ID: W4409291976