Jet shapes and fragmentation functions in Au+Au collisions at √{sNN } = 200GeV in STAR
Abstract
The STAR Collaboration reports measurements of differential jet shapes and semi-inclusive jet fragmentation functions in Au+Au collisions at √{sNN } = 200GeV with the STAR detector at RHIC. Jet shapes, which represent the radial distribution of momentum carried by constituents, are measured differentially for (1) the charged particles transverse momentum and (2) the jet azimuthal angle relative to the second-order event plane. Based on the semi-inclusive population of jets recoiling from a high transverse momentum trigger hadron, jet fragmentation functions in 40-60% central heavy-ion collisions are measured, and compared to those in PYTHIA simulations for pp collisions.
- Publication:
-
Nuclear Physics A
- Pub Date:
- January 2021
- DOI:
- 10.1016/j.nuclphysa.2020.121808
- arXiv:
- arXiv:2002.06217
- Bibcode:
- 2021NuPhA100521808O
- Keywords:
-
- jet;
- jet shape;
- jet fragmentation function;
- STAR;
- Nuclear Experiment;
- High Energy Physics - Experiment
- E-Print:
- 4 pages, 4 figures, Proceedings of 28th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2019)