Abstract
The PHENIX experiment was upgraded with the Hadron Blind Detector (HBD) for the measurement of low-mass electron pairs. The HBD reduces the combinatorial background by providing additional electron identification in a field-free region close to the vertex and by exploiting the small opening angle of the pi(0) Dalitz and conversion pairs. The HBD was successfully operated during Run 9 and Run 10 at the RHIC in the measurements of e(+)e(-) pairs in p+p and Au+Au collisions, respectively. This paper reports on the present status of the dielectron analysis in Au+Au collisions at root s(NN) = 200 GeV.
Original language | English |
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Article number | 124135 |
Number of pages | 4 |
Journal | Journal Of Physics G-Nuclear And Particle Physics |
Volume | 38 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2011 |