Calculating jet vn and the event plane in the presence of a jet
نویسنده
چکیده
Advances in measurements of jets and collective phenomena in ultrarelativistic heavy ion collisions have led to further understanding of the properties of the medium created in such collisions. Measurements of the correlations between the axes of reconstructed jets and the reaction plane or second-order participant plane of the bulk medium (defined as jet v2), as well as the higher-order participant planes (jet vn), provide information on medium-induced parton energy loss. Additionally, knowledge of jet vn as well as the ability to reconstruct the event plane in the presence of a jet are necessary in analyses of jet-triggered particle correlations, which are used to study medium-induced jet shape modification. However, the presence of a jet can bias the event plane calculation, leading to an overestimation of jet v2. This paper proposes a method for calculating jet v2 (and by extension, the higher jet vn harmonics) and the event plane in an unbiased way, using knowledge of the azimuthal angle of the jet axis from full jet reconstruction.
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