ICPAQGP-2010

5-10 December 2010

6th International Conference on Physics and Astrophysics of Quark Gluon Plasma (ICPAQGP 2010)

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First results from the Photon Multiplicity Detector at forward rapidities in AuAu collision at $\sqrt{s_{nn}}$= 39GeV

Content:

Photons are produced at all stages of the system created in a heavy ion col- lision, both directly and through decay of produced particles like neutral pions. The multiplicity measurement of photons on an event-by-event basis is an important measurement complementing the charged particle measurement in a heavy ion collision. Photon production at forward rapidity shows an energy independent longitudinal scaling as observed at $\sqrt{s_{nn}}$ = 62.4 and 200 GeV [1,2]. Photon measurments at lower Sqrt[Snn] will be helpful in testing the longitudinal scaling at lower energies. The Photon Multiplicity Detector in the STAR experiment at RHIC measures inclusive photons in the pseudo-rapidity region −3.7 < η < −2.3. We will present preliminary results on photon production in Au+Au collisions at $\sqrt{s_{nn}}$= 39GeV for diﬀerent event centralities. The results of measurements at 39 GeV will be compared with data at other energies and also with models.

Collaboration:

STAR Collaboration

Id:

162

Place:

Room: Main Auditorium

Starting date:

--not yet scheduled--

Duration:

00'

Primary Authors:

Ms. DRONIKA, Dronika Solanki (PhD student)

Presenters:

Ms. DRONIKA, Dronika Solanki