[Brahms-l] Fw: New PHENIX paper "Measurement of high-$p_T$ Single Electrons from Heavy-Flavor Decays in $p+p$ Collisions at $\sqrt{s\}$~=~200~GeV"

FYI

Sent: Wednesday, August 30, 2006 10:01 AM
Subject: New PHENIX paper "Measurement of high-$p_T$ Single Electrons from Heavy-Flavor Decays in $p+p$ Collisions at 
$\sqrt{s\}$~=~200~GeV"


> Dear Wit, Tim, Flemming and Peter:
>
> In one week's time the PHENIX collaboration will submit to Physical Review
> Letters a manuscript on the production of non-photonic electrons in p+p
> collisions at 200 GeV. The title and abstract are included below.
>
> Best regards,
>
> Bill
>
> ----------------------------------------------------------------------------
> --------------------------------
>
> Title: Measurement of high-$p_T$ Single Electrons from Heavy-Flavor Decays
> in $p+p$ Collisions at $\sqrt{s\}$~=~200~GeV
>
> Abstract:
> The momentum distribution of electrons from decays of heavy flavor (charm
> and beauty) at mid-rapidity in $p + p$ collisions at $\sqrt{s}$=200 GeV has
> been measured by the PHENIX experiment at the Relativistic Heavy Ion
> Collider (RHIC) over the transverse momentum range $0.3 < p_T < 9$ GeV/$c$.
> Two independent methods have been used to determine the heavy flavor yields,
> and the results are in good agreement with each other. A Fixed Order plus
> Next to Leading Log pQCD calculation agrees with the data within the
> theoretical and experimental uncertainties, with the data/theory ratio
> $\simeq  1.7 $ over the entire measured range of transverse momentum. The
> total charm production cross section at this energy has also been deduced.
> 

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