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On the Entropy of Jets

Jørstad, Eivind Hilmen LU (2020) FYTK02 20201
Theoretical Particle Physics - Undergoing reorganization
Abstract
High energy particle collisions often produce large numbers of partons in the final state, which are clustered together in collimated sprays called jets. A recent paper [1] introduces the concept of jet entropy, which is an observable that quantifies the entanglement between the resolved and unresolved parts of a jet. We derive an analytic expression for the entropy of a gluon jet and compare the result to that of a simple event generator. Our results show that jet entropy is sensitive to the treatment of recoil, which suggests a novel way of testing recoil prescriptions against experimental data. We also examine models of graviton jets where the splitting functions are obtained by removing collinear pieces from gluon
splitting functions,... (More)
High energy particle collisions often produce large numbers of partons in the final state, which are clustered together in collimated sprays called jets. A recent paper [1] introduces the concept of jet entropy, which is an observable that quantifies the entanglement between the resolved and unresolved parts of a jet. We derive an analytic expression for the entropy of a gluon jet and compare the result to that of a simple event generator. Our results show that jet entropy is sensitive to the treatment of recoil, which suggests a novel way of testing recoil prescriptions against experimental data. We also examine models of graviton jets where the splitting functions are obtained by removing collinear pieces from gluon
splitting functions, and find that the entropy depends strongly on how the collinear pieces are removed. (Less)
Please use this url to cite or link to this publication:
author
Jørstad, Eivind Hilmen LU
supervisor
organization
course
FYTK02 20201
year
type
M2 - Bachelor Degree
subject
keywords
Entropy, Jets, QCD, Gravity
language
English
id
9024974
date added to LUP
2020-08-17 09:35:41
date last changed
2020-08-17 09:35:41
@misc{9024974,
  abstract     = {{High energy particle collisions often produce large numbers of partons in the final state, which are clustered together in collimated sprays called jets. A recent paper [1] introduces the concept of jet entropy, which is an observable that quantifies the entanglement between the resolved and unresolved parts of a jet. We derive an analytic expression for the entropy of a gluon jet and compare the result to that of a simple event generator. Our results show that jet entropy is sensitive to the treatment of recoil, which suggests a novel way of testing recoil prescriptions against experimental data. We also examine models of graviton jets where the splitting functions are obtained by removing collinear pieces from gluon
splitting functions, and find that the entropy depends strongly on how the collinear pieces are removed.}},
  author       = {{Jørstad, Eivind Hilmen}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{On the Entropy of Jets}},
  year         = {{2020}},
}