scholarly journals Quarkonium production in heavy ion collisions: coupled Boltzmann transport equations

2019 ◽  
Author(s):  
Xiaojun Yao ◽  
Weiyao Ke ◽  
Yingru Xu ◽  
Steffen A. Bass ◽  
Berndt Muller
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Transport Equations ◽  
Boltzmann Transport ◽  
Ion Collisions ◽  
Quarkonium Production

scholarly journals Quarkonium production in heavy ion collisions: coupled Boltzmann transport equations

2019 ◽  
Vol 982 ◽  
pp. 755-758 ◽  
Author(s):  
Xiaojun Yao ◽  
Weiyao Ke ◽  
Yingru Xu ◽  
Steffen Bass ◽  
Berndt Müller
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Transport Equations ◽  
Boltzmann Transport ◽  
Ion Collisions ◽  
Quarkonium Production

scholarly journals Coupled Transport Equations for Quarkonium Production in Heavy Ion Collisions

2021 ◽  
Author(s):  
Xiaojun Yao ◽  
Weiyao Ke ◽  
Yingru Xu ◽  
Steffen A. Bass ◽  
Berndt Mueller
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Transport Equations ◽  
Coupled Transport ◽  
Ion Collisions ◽  
Quarkonium Production

scholarly journals The global geometrical property of jet events in high-energy nuclear collisions

2020 ◽  
Vol 80 (9) ◽  
Author(s):  
Shi-Yong Chen ◽  
Wei Dai ◽  
Shan-Liang Zhang ◽  
Qing Zhang ◽  
Ben-Wei Zhang
Keyword(s):  
Energy Loss ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Jet Quenching ◽  
Relativistic Heavy Ion Collisions ◽  
Parton Energy Loss ◽  
Boltzmann Transport ◽  
Ion Collisions ◽  
Medium Modifications

AbstractWe present the first theoretical study of medium modifications of the global geometrical pattern, i.e., transverse sphericity ($$S_{\perp }$$ S ⊥ ) distribution of jet events with parton energy loss in relativistic heavy-ion collisions. In our investigation, POWHEG + PYTHIA is employed to make an accurate description of transverse sphericity in the p + p baseline, which combines the next-to-leading order (NLO) pQCD calculations with the matched parton shower (PS). The Linear Boltzmann Transport (LBT) model of the parton energy loss is implemented to simulate the in-medium evolution of jets. We calculate the event normalized transverse sphericity distribution in central Pb + Pb collisions at the LHC, and give its medium modifications. An enhancement of transverse sphericity distribution at small $$S_{\perp }$$ S ⊥ region but a suppression at large $$S_{\perp }$$ S ⊥ region are observed in A + A collisions as compared to their p + p references, which indicates that in overall the geometry of jet events in Pb + Pb becomes more pencil-like. We demonstrate that for events with 2 jets in the final-state of heavy-ion collisions, the jet quenching makes the geometry more sphere-like with medium-induced gluon radiation. However, for events with $$\ge 3$$ ≥ 3 jets, parton energy loss in the QCD medium leads to the events more pencil-like due to jet number reduction, where less energetic jets may lose their energies and then fall off the jet selection kinematic cut. These two effects offset each other and in the end result in more jetty events in heavy-ion collisions relative to that in p + p.

NEUTRINO CAPTURE INDUCED SUPERNOVA EXPLOSIONS

2010 ◽  
Vol 19 (08n10) ◽  
pp. 1483-1490 ◽  
Author(s):  
T. STROTHER ◽  
W. BAUER
Keyword(s):  
Kinetic Theory ◽  
Heavy Ion Collisions ◽  
Supernova Explosion ◽  
Heavy Ion ◽  
High Energy ◽  
Transport Equations ◽  
Core Collapse ◽  
Ion Collisions ◽  
Supernova Explosions ◽  
Explosion Mechanism

Motivated by the success of kinetic theory in the description of observables in intermediate and high energy heavy-ion collisions, we use kinetic theory to model the dynamics of core collapse supernovae. The specific way that we employ kinetic theory to solve the relevant transport equations allows us to explicitly model the propagation of neutrinos and a full ensemble of nuclei and treat neutrino–matter interactions in a very general way. With these abilities, our simulations have observed dynamics that may prove to be an entirely new neutrino capture induced supernova explosion mechanism.

scholarly journals RHIC and LHC heavy ion collisions with pQCD Boltzmann transport

2013 ◽  
Vol 455 ◽  
pp. 012051
Author(s):  
I Bouras ◽  
O Fochler ◽  
F Reining ◽  
F Senzel ◽  
J Uphoff ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Boltzmann Transport ◽  
Ion Collisions
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