Emission of Low Momentum Particles at Large Angles from Jet
Yasuki Tachibana, Tetsufumi Hirano
TL;DR
This paper models how energetic partons traveling through quark-gluon plasma induce complex flow structures and low momentum particles at large angles, aligning with LHC observations.
Contribution
It introduces a (3+1)-dimensional QGP-fluid+Jet model to simulate jet-induced fluid dynamics and particle emission patterns.
Findings
Jet traversal induces Mach cone structures and vortex rings.
Low momentum particles are emitted at large angles from quenched jets.
Results qualitatively match CMS experimental observations.
Abstract
We study dynamics of a QGP fluid induced by energetic partons propagating through it. We construct a (3+1)-dimensional QGP-fluid+Jet model. When a jet traverses a uniform fluid, it induces a Mach cone structure of energy density distribution and a vortex ring surrounding a path of the jet. When a pair of jets travels through a radially expanding fluid, low momentum particles are dominantly induced at large angles from the quenched jet. This result is qualitatively consistent with observation of the CMS Collaboration at LHC.
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