%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%% Quark Matter 2009 CONFERENCE TEMPLATE
%%%%%%%% Please do not modify the template above the abstract body.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\documentclass[12pt]{article}
\pagestyle{empty} 
\setlength{\topmargin}{-1.2in}
\setlength{\textheight}{9.9in} 
\setlength{\oddsidemargin}{-0.1in}
\setlength{\textwidth}{6.5in}
\parindent=0pt \parskip=0pt
%
\begin{document}
%
{\small \it Quark Matter 2009 : March 30$^{th}$ - April 4$^{th}$, 2009 : Knoxville, Tennessee}
\vspace{12pt}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%% Abstract body
%%%%%%%%% Start edits here; skip lines with '%' comments
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Enter title here.

\centerline{\bf High $p_{T}$ Non-photonic Electron Measurements in d+Au and p+p}
\centerline{\bf collisions using EMC-trigger at $\sqrt{s_{NN}}$=200 GeV at STAR}

\vspace{12pt} % Do not modify

% Enter author(s) here.

\centerline{{\bf Xin Li} for the STAR Collaboration}

\vspace{12pt} % Do not modify

% Enter institution(s) here.

\centerline{ Physics Department, Purdue University }
\centerline{West Lafayette, IN 47907, USA}

\vspace{8pt} % Do not modify

\vspace{12pt} % Do not modify

% Enter contact e-mail address here.

\centerline{Contact e-mail: {\it li124@purdue.edu}}

\vspace{18pt} % Do not modify

% Enter abstract text here.

Heavy quarks (charm and bottom) measurements in d+Au and p+p collisions are critical references to the understanding of heavy quark production in the hot and dense matter created at RHIC. These measurements also provide a crucial test to the pQCD. Measuring electrons from heavy quark semi-leptonic decay
(non-photonic electron) is one major way to study heavy quark production at RHIC.
\vspace{8pt} % Do not modify

We will present results from high $p_{T}$ non-photonic electron measurements at mid-rapidity in year 2008 d+Au and p+p collisions at $\sqrt{s_{NN}}$=200 GeV using the datasets from Electromagnetic Calorimeter (EMC) triggers in STAR detectors. By combining a set of EMC triggers with different thresholds, we are able to make measurements of non-photonic electrons at $p_{T} > 2$ GeV/c up to about $10$ GeV/c.  During this run, STAR reduced the material before the TPC by a factor of ~10 by removing the inner silicon detectors. This significantly enhances the signal to background ratio of our measurements and provides a crucial opportunity to understand the discrepancy between PHENIX and STAR. We will compare our results with the currently published results at RHIC.

\vspace{12pt} % Do not modify
\parindent=0pt % Do not modify
\end{document}