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Calculating Jet $v_n$ and the Event Plane in the Presence of a Jet | | Alice Ohlson
; | | Date: |
6 May 2012 | | Abstract: | 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. A measurement of the
correlation between the axes of reconstructed jets and the reaction plane of
the bulk medium (defined as jet $v_2$) and the higher-order participant planes
(jet $v_n$) provide information on medium-induced parton energy loss.
Additionally, knowledge of jet $v_n$ 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 $v_2$. This paper proposes a
method for calculating jet $v_2$ (and by extension, the higher jet $v_n$
harmonics) and the event plane in an unbiased way, using knowledge of the
azimuthal angle of the jet axis from full jet reconstruction. | | Source: | arXiv, 1205.1172 | | Services: | Forum | Review | PDF | Favorites | |
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