Path-length dependence of energy loss within in-medium showers
- Department of Physics, P.O. Box 35, FI-40014 University of Jyvaeskylae, Finland and (Finland)
The study of the path-length dependence of high-transverse-momentum (P{sub T}) hadron suppression in heavy-ion collisions by measuring the dependence of hard-hadron production on the angle {phi} with the reaction plane in noncentral collisions has so far been one of the most successful tools in constraining the microscopic picture of leading-parton energy loss. With the imminent start of the Large Hadron Collider heavy-ion program and the possibility of full jet reconstruction, the focus has shifted to models that are capable of simulating full in-medium parton showers rather than tracing the leading parton only. Yet, on the level of single-inclusive hadron observables, such shower models need to reproduce the findings of leading-parton energy-loss models; in particular, they need to reproduce the correct reaction-plane-angle dependence of hadron suppression. The aim of this work is to illustrate, using the example of the Monte Carlo in-medium shower code, yajem (Yet another Jet Energy-loss Model), how path-length dependence arises in a Monte Carlo shower formulation, how it relates to path-length dependence of leading-parton energy loss, and how model results compare with data on the reaction-plane dependence of the nuclear suppression factor R{sub AA}({phi}).
- OSTI ID:
- 21499434
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 83, Issue 2; Other Information: DOI: 10.1103/PhysRevC.83.024908; (c) 2011 American Institute of Physics; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CERN LHC
COLLISIONS
COMPARATIVE EVALUATIONS
ENERGY LOSSES
HADRONS
HEAVY ION REACTIONS
HEAVY IONS
MONTE CARLO METHOD
PARTICLE PRODUCTION
TRANSVERSE MOMENTUM
ACCELERATORS
CALCULATION METHODS
CHARGED PARTICLES
CYCLIC ACCELERATORS
ELEMENTARY PARTICLES
EVALUATION
IONS
LINEAR MOMENTUM
LOSSES
NUCLEAR REACTIONS
STORAGE RINGS
SYNCHROTRONS