Femtoscopy in $\sqrt{s}$ = 200~GeV $p$+$p$ collisions at RHIC-PHENIX
ORAL
Abstract
Femtoscopic measurements from two particle interferometry exploit the {\bf H}anbury {\bf B}rown and {\bf T}wiss effect to provide information about the bulk medium created in heavy-ion collisions. Experiments at the Relativistic Heavy Ion Collider use HBT measurements to study source sizes and emission duration of the strongly interacting {\bf Q}uark {\bf G}luon {\bf P}lasma created in $\sqrt{s}$ = 200~GeV Au+Au collisions. These HBT measurements show azimuthal sensitivity relative to the reaction plane of non-central collisions. Future HBT measurements may similarly use a jet axis to define the event-by-event geometry to gain insight into the modification of jets by the QGP, and conversely, the feedback of the jet into the medium. Understanding HBT in systems with significant correlations due to local energy and momentum conservation, such as $p$+$p$ collisions, will be required to properly perform and interpret such measurements. Comparisons of correlations from minimum bias data to those from a jet region are of particular importance. PHENIX preliminary measurements from the HBT analysis for charged pions from $\sqrt{s}$ = 200~GeV $p$+$p$ collisions will be presented. The status of 1-D imaging and the analysis of jet selected events will be discussed.
–
Authors
-
Andrew Glenn
LLNL, Lawrence Livermore National Laboratory