Speaker
Jianwei Qiu
(Brookhaven National Lab)
Description
Jet is known as the "footprint" of high energy quark and gluon produced in high energy scattering, and has been an excellent probe for short-distance dynamics of QCD and potential new physics. Jet quenching is recognized as a key evidence for the discovery of quark-gluon plasma in relativistic heavy ion collisions. However, quantifying the jet quenching in a hot and dense medium is challenging due to the definition of the jet itself and its phase space limitation. In this talk, I propose to use the jettiness, a more inclusive observable for global event shape, to quantify the jet quenching phenomenon and QCD radiation and energy loss in p+A and e+A collisions, and to discuss the complementary between the jet and jettiness as observables, and between p+A and e+A scattering.
Primary author
Jianwei Qiu
(Brookhaven National Lab)
