[Brahms-l] Fw: New PHENIX Manuscript on Single Electron v2

FYI
----------------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory

e-mail: videbaek@bnl.gov
phone: 631-344-4106
----- Original Message ----- 
From: "W.A. Zajc" <zajc@nevis.columbia.edu>
To: "Thomas Kirk" <tkirk@bnl.gov>; "'Busza, Wit'" <busza@mit.edu>;
<Hallman@bnl.gov>; "Flemming Videbaek" <videbaek@bnl.gov>
Sent: Sunday, January 23, 2005 7:21 PM
Subject: New PHENIX Manuscript on Single Electron v2


> Dear Tom, Wit, Tim and Flemming:
>
> In one week's time, the PHENIX collaboration will submit a manuscript to
> Physical Review C on azimuthal anisotropies observed in electrons from
Au+Au
> collisions. The title and abstract appear below.
>
> Best regards,
>
> Bill
>
>
============================================================================
> ====================
>
> Title: Measurement of Single Electron Event Anisotropy in Au+Au Collisions
> at sqrt{sNN} = 200 GeV
>
> Abstract: The transverse momentum dependence of the azimuthal anisotropy
> parameter v2, the second
> harmonic of the azimuthal distribution, for electrons at mid-rapidity
> (|\eta|< 0.35) has been measured with the PHENIX detector in Au+Au
> collisions at sqrt{sNN} = 200 GeV. The measurement was made with respect
to
> the reaction plane defined at high rapidities (|\eta| = 3.1-3.9). From the
> result we have measured the single electron v2, which is expected to
reflect
> the heavy-flavor azimuthal anisotropy after subtraction of the v2 of
> electrons from other sources such as photon conversions and Dalitz decay
> from light neutral mesons. We observe a non-zero single electron v2 with a
> 90% confidence level in the intermediate pT region.
>


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