Direct Photons at High Pt in PHENIX

Details Direct Photons at High Pt in PHENIX Direct Photons at High Pt in PHENIX

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprc13012f&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

Direct photons are an excellent probe of both the matter created in relativistic heavy ion collisions and the hard interactions that occur therein. Identifying them is experimentally challenging due to large backgrounds especially photons from meson decays, allowing for only statistical measurements at lower momenta. However, this effect is lessened at higher momenta and with appropriate kinematic cuts the direct photons can be studied per event. Understanding the backgrounds, including possible rejection and corresponding sensitivities, is therefore essential for what could be an exciting new measurement with the PHENIX electromagnetic detectors in recent higher energy RHIC data.

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