\def\CTeXPreproc{Created by ctex v0.2.4, don't edit!}%%%=======================================================
%%% =
%%% = Sample layout file for the class "aipproc"
%%% =
%%% = DO NOT USE THIS FILE AS A TEMPLATE FOR YOUR DOCUMENTS
%%% =
%%% = Instead use the file template-xx.tex
%%% =
%%%=======================================================


\input{ctextemp_aipcheck.tex}

\newcommand\sps{\space\space\space\space}
\typeout{}
\typeout{!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!}
\typeout{!! \sps\sps\sps\sps\sps\sps\sps\sps\sps\sps\sps\sps!!}
\typeout{!! This is *NOT* a template file for producing \sps!!}
\typeout{!! new documents. \sps\sps\sps\sps\sps\sps\sps\sps\space!!}
\typeout{!!\sps\sps\sps+---------------+\sps\sps\sps\sps\sps!!}
\typeout{!! Please use |template-xx.tex| for this purpose! \space!!}
\typeout{!!\sps\sps\sps+---------------+\sps\sps\sps\sps\sps!!}
\typeout{!! (the 'xx' depends on the distribution) \sps\sps\space!!}
\typeout{!! \sps\sps\sps\sps\sps\sps\sps\sps\sps\sps\sps\sps!!}
\typeout{!! This file is for testing and displaying the \sps!!}
\typeout{!! AIP layouts only. \sps\sps\sps\sps\sps\sps\sps\space\space!!}
\typeout{!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!}
\typeout{}


\typeout{}
\typeout{**********************************************}
\typeout{*}
\typeout{* Here you can type in any options for the class.}
\typeout{* A full list of supported options is described in}
\typeout{* the aipguide documentation.}
\typeout{*}
\typeout{* Or you may simply press the <RETURN> key in which}
\typeout{* case the file is processed with the standard settings.}
\typeout{*}
\typeout{**********************************************}
\typeout{}
\typein[\selectedoptions]{Any options to the class?}
\ifx\empty\selectedoptions
  \def\selectedoptions{final}
\fi

\documentclass[
   \selectedoptions
  ]
  {ctextemp_aipproc}



\newcommand\sample{%
 Infandum, regina, iubes renovare dolorem, Troianas ut opes et
 lamen\-ta\-bile regnum cruerint Danai; quaeque ipse miserrima vidi, et
 quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
 miles Ulixi temperet a lacrimis? \smallsample
}

\newcommand\smallsample{%
 Et iam nox umida caelo praecipitat,
 suadentque cadentia sidera somnos.
 Sed si tantus amor casus cognoscere
 nostros et breviter Troiae supremum audire laborem, quamquam animus
 meminisse horret, luctuque refugit, incipiam.
}

\typeout{}
\typeout{**********************************************}
\typeout{*}
\typeout{* Type in the layout style name to be used:}
\typeout{*}
\typeout{* `6x9' for AIP proceedings 6x9 inch single column}
\typeout{* `8x11single' for AIP proceedings 8x11 inch single column}
\typeout{* `8x11double' for AIP proceedings 8x11 inch double column}
\typeout{* `arlo' for Acoustics Research Letters Online}
\typeout{*}
\typeout{* ATTENTION:}
\typeout{*}
\typeout{* \space Typesetting the guide with different styles might
                  produce}
\typeout{* \space errors if the .aux file is kept between runs!}
\typeout{*}
\typeout{**********************************************}
\typeout{}
\typein[\selectedlayoutstyle]{What layout?}
\layoutstyle\selectedlayoutstyle

\SetInternalRegister\hbadness{8000} % pseudo latin isn't breaking very well :-)


% We need something to show special stuff for ARLO only.
%
\newcommand\doingARLO[2][]{%
  \ifx\mmref\undefined #1\else #2\fi
}


\begin{document}

\title
      [Infandum, regina, iubes renovare dolorem]
      {Measurement of Open Heavy Flavor Production in the STAR experiment at RHIC}

\classification{13.20.Fc, 13.25.Ft, 24.85.+p, 25.75.Cj}
\keywords{STAR, open heavy flavor mesons, non-photonic electrons,
cross section}

\author{Xin Li, for STAR Collarboration}{
  address={Purdue University, West Lafayette, IN 47907, USA}
  }


\begin{abstract}
We present the STAR results of non-photonic electron measurements
and direct reconstruction of charm mesons at $\sqrt{s} = 200 GeV$.
We also briefly outline the future perspectives on the studies of
open heavy flavor production at RHIC.}
\end{abstract}


\date{\today}


\maketitle

\section{Introduction}

Heavy quarks are unique probes to study the strongly-coupled
Quark-Gluon Plasma created at RHIC. Unlike light quarks, heavy
quark masses come mostly from spontaneous symmetry breaking, which
makes them ideal for studying the medium's QCD properties. Due to
their large masses, they are produced early in the collisions and
are expected to interact with the medium quite differently from
that of light quarks.  Detailed studies of the open heavy flavor
meson productions in heavy-ion collisions and the baseline p+p and
d+A collisions provide crucial information in understanding the
medium's properties.

In STAR experiment, we can study open heavy flavor mesons
indirectly through measuring non-photonic electrons production,
and directly through reconstructing charm mesons via their
hadronic decay. The non-photonic electron, with the help of online
triggers, allows studying  heavy quark production at high pT,
while the direct measurement allow direct access of heavy quark
kinematics and avoid the complication of disentangle charm and
bottom quark components.  In this paper, we report recent results
from both fronts.


\section{Indirect Measurement through Non-photonic Electrons Production}

The STAR experiment has measured open charm via its semi-leptonic
decay ($D,B \to l v_{l} X$) [1]. The dominant backgrounds are
photonic electrons from photon conversion in the detector material
and Dalitz decay of $\pi^{0}$ and $\eta$ mesons. They can be
partially identified and removed through the reconstructed
invariant mass distributions of electron-positron pairs. Not all
photonic electrons can be identified this way since one of the
electrons in a pair may escape from the detector, or has a very
low momentum and cannot be reconstructed. This inefficiency in
identifying photonic electrons is estimated through simulation and
is used to estimate the total photonic electron background.

A long standing puzzle was that the measured high $p_{T}$
non-photonic electron invariant yield in both $p+p$ and $Au+Au$
collisions from STAR and PHENIX differ by about a factor of two.
This was resolved by uncovering a mistake, which are similar in
our published $p+p$, $d+Au$ and $Au+Au$ results, in applying the
background finding efficiency in the subtraction of the photonic
electron background [1].  Figure 1 shows the nuclear modification
factor, $R_{AA}$, for $d+Au$ and $Au+Au$ collisions. Since the
mistake are similar in all collision specifies, the corrected
measurements are quite close to the original results in central
values but with larger statistical errors.  The results are
consistent with substantial energy loss of heavy quarks in dense
matter created at RHIC.

\begin{figure}
  \includegraphics[height=.3\textheight]{fig1}
  \caption{(Color online) The nuclear modification factor, $R_{AA}$, for $d+Au$ and $Au+Au$ collisions at
  $\sqrt{s} = 200 GeV$, together with different theoretical model predictions. See Ref.[2] for details.}
\end{figure}

Electrons from bottom and charm meson decays are the two dominant
components of the non-photonic electrons. The relative
contribution to the non-photonic electrons from bottom and charm
meson decays can be disentangled utilizing their different decay
kinematics. In STAR, this is done though measuring the azimuthal
correlation between non-photonic electrons and charged hadrons as
well as the correlation between non-photonic electrons and $D^0$
[2]. The distribution of the azimuthal angle between non-photonic
electrons and charged hadrons decay from bottom meson is much
wider than that from charm meson decays. Through fitting the data
using a function combining the two different distributions, we
obtained the contribution of B-decay electron to the non-photonic
electron yield $(eB/(eB+eD))$. By using the measured $eB/(eB+eD)$,
together with the measured non-photonic electron cross section [3]
with the electrons from $J/\psi$, $\gamma$ decay and Drell-Yan
processes subtracted, one can disentangle these two components.
Figure 2 shows the invariant cross section of non-photonic
electrons from bottom and charm mesons as a function of $p_{T}$
[3] and the corresponding Next-to-Leading Logarithm (FONLL)
predictions [4], along with the ratio of each measurement to the
FONLL calculations. One can see the measurements are consistent
with the FONLL prediction within its theoretical uncertainties.
The integrated cross section of electrons at $3 GeV/c < p_T < 10
GeV/c$ from bottom and charm meson decays is measured to be:

\begin{figure}
  \includegraphics[height=.3\textheight]{fig2}
  \caption{(Color online) Invariant cross section of electrons from bottom (upper-left) and charm meson (upper-right) decay,
   together with the ratio of the corresponding measurements to the FONLL predictions for bottom (lower-left) and charm electrons (lower-right).}
\end{figure}


\section{Direct Heavy Flavor Measurements through Reconstruction of Open Charm Mesons }

A direct reconstruction of the D meson was performed in Run2009
$p+p$ collisions at $\sqrt{s} = 200 GeV$. $D^0$ and $\overline
{D^0}$ are reconstructed through the decay channel: $D^0$
($\overline {D^0}$) $\to K^{\mp}\pi^{\pm}$ with a branching ratio
(BR) of 3.89\%. $D^{*\pm}$ masons were reconstructed through the
decay channel $D^{*\pm} \to D^{0}\pi^{\pm}$ ($BR = 67.7\%$), $D^0
/to K^{-}/pi^{+}$ and its charge conjugate. Figure 3 shows the
invariant mass distributions for the $D^0$ (left panel) and $D^*$
meson (right panel) after background subtraction. Significant
signal of directly reconstructed $D^0$ and $D^*$ meson are
observed.

Sed si tantus amor casus\doingARLO{ \mmref{fv}}
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.

\doingARLO{        % not known elsewhere
\begin{multimedia}
  \mmuid{523}
  \mmtype{gif}
  \mmsize{1.2Mb}
  \mmurl{http://yorktown.eng.yale.edu/test/msXXX/}
  \mmcaption{Fancy video}
  \label{fv}
\end{multimedia}}

Et iam nox umida caelo praecipitat $J_{ion}$ suadentque cadentia
sidera somnos. Sed si tantus amor casus cognoscere nostros et breviter
Troiae $J_{ion}$ supremum audire laborem:
\begin{equation}
J_{ion}=A\frac{exp\left[-\frac{E_a}{kT}\right]}{kT}j \label{ionflux}
\end{equation}
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. $A$ talia fando, $E_a$ iam nox umida, $k$ caelo
praecipitat, suadentque cadentia sidera somnos. See \eqref{ionflux}.



\paragraph{And a D-head}

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui \cite{Brown2000,BrownAustin:2000}. Quis talia fando
Myrmidonum Dolopumve aut duri miles Ulixi temperet
\cite{Mittelbach/Schoepf:1990} a lacrimis? Et iam
nox umida caelo praecipitat, suadentque \cite{Wang} cadentia
sidera somnos.

\doingARLO{        % not known elsewhere
\begin{multimedia}
  \mmuid{524}
  \mmtype{wav}
  \mmsize{300k}
  \mmurl{http://yorktown.eng.yale.edu/test/ms524/}
  \mmcaption{Fancy Wave}
\end{multimedia}
}

\begin{figure}
  \includegraphics[height=.3\textheight]{1}
  \caption{Quis talia fando Myrmidonum}
\end{figure}


\begin{figure}[b]
  \resizebox{12pc}{!}{\includegraphics{test11}}
\caption{Quis talia fando Myrmidonum}
\end{figure}

\begin{figure}
\caption{Infandum, regina, iubes renovare dolorem, Troianas ut opes et
         lamentabile regnum cruerint Danai; quaeque ipse miserrima
         vidi, et quorum pars magna fui.}
\includegraphics[height=.5\textheight]{test11}
\end{figure}

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos. Sed si tantus amor casus
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.


Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos. Sed si tantus amor casus
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos. Sed si tantus amor casus
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.


Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?


\begin{table}[!t]
\begin{tabular}{rrrp{.7\textwidth}} % .4\textwidth
\hline
  \tablehead{1}{r}{b}{File} &
  \tablehead{1}{c}{b}{Date} &
  \tablehead{1}{c}{b}{Version} &
  \tablehead{1}{c}{b}{Description} \\
\hline
 aipproc.cls &    1998/08/21 & v0.9a & AIP Proceedings (FMi) \\
    calc.sty &    1997/11/11 & v4.0e & Infix arithmetic (KKT,FJ) \\
graphicx.sty &    1997/06/09 & v1.0d & Enhanced LaTeX Graphics (DPC,SPQR) \\
  keyval.sty &    1997/11/10 & v1.10 & key=value parser (DPC) \\
graphics.sty &    1997/09/09 & v1.0f & Standard LaTeX Graphics (DPC,SPQR) \\
    trig.sty &    1994/10/16 & v1.08 & sin cos tan (DPC) \\
   dvips.def &    1997/09/09 & v3.0e & Driver-dependant file (DPC,SPQR) \\
 article.cls &    1998/05/05 & v1.3y & Standard LaTeX document class \\
  size10.clo &    1998/05/05 & v1.3y & Standard LaTeX file (size option) \\
 mathptm.sty &    1998/01/07 & PSNFSS v.7 & Times + math package from fontinst : S Rahtz \\
 fontenc.sty &    1998/06/12 & v1.9p & Standard LaTeX package \\
   t1enc.def &    1998/06/12 & v1.9p & Standard LaTeX file \\
   times.sty &    1998/01/07 & PSNFSS v.7 & Times font as default roman : S Rahtz \\
textcomp.sty &    1998/06/12 & v1.9p & Standard LaTeX package \\
  ts1enc.def &    1998/06/12 & v3.0d & (jk/car/fm) Standard LaTeX file \\
varioref.sty &    1997/12/06 & v1.1d & package for extended references (FMi) \\
 fix2col.sty &    1998/08/17 & v0.03 & Output Routine fixes for two
                                       column mode (DPC,FMi) \\
shortvrb.sty &    1998/05/19 & v2.0b & Standard LaTeX documentation
                                       package (FMi) \\
  ts1cmr.fd &    1998/03/27 & v2.5g  & Standard LaTeX font definitions \\
   t1ptm.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
T1/ptm. \\
   t1pcr.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
T1/pcr. \\
ot1ptmcm.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
OT1/ptmcm. \\
omlptmcm.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
OML/ptmcm. \\
omspzccm.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
OMS/pzccm. \\
omxpsycm.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
OMX/psycm. \\
  ot1ptm.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
OT1/ptm. \\
  ts1ptm.fd &    1997/09/30 & Fontinst v1.6 & font definitions for
TS1/ptm. \\
\hline
\end{tabular}
\caption{Sample of a wide table that is automatically being turned sideways}
\label{tab:b}
\end{table}


\begin{figure}
  \resizebox{6pc}{!}{\includegraphics{test11}}
  \resizebox{6pc}{!}{\reflectbox{\includegraphics{test11}}}
\caption{The caption}
\end{figure}


Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos. Sed si tantus amor casus
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos.

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia\footnote{A few more footnotes} fando
Myrmidonum Dolopumve aut duri miles Ulixi temperet a lacrimis? Et iam
nox umida caelo praecipitat, suadentque cadentia\footnote{Here we test
footnotes.} sidera somnos. Sed si tantus amor casus cognoscere nostros
et breviter Troiae supremum audire laborem, quamquam animus meminisse
horret, luctuque refugit, incipiam.
In the following we test itemize environments up to the forth level.
\begin{itemize}
\item
  An item with more than a line of text. Infandum, regina, iubes
  renovare dolorem, Troianas ut opes et lamentabile regnum cruerint
  Danai.
\item
  Another item with sub entries
  \begin{itemize}
  \item
   A sub entry.
  \item
   Second sub entry.
    \begin{itemize}
    \item
     A sub sub entry.
      \begin{itemize}
      \item
       A sub sub sub entry.
      \item
       Second sub sub sub entry.
      \end{itemize}
    \item
     Second sub sub entry.
    \end{itemize}
  \end{itemize}
\item
  A final item.
\end{itemize}


\begin{table}
\begin{tabular}{lrrrr}
\hline
  & \tablehead{1}{r}{b}{Single\\outlet}
  & \tablehead{1}{r}{b}{Small\tablenote{2-9 retail outlets}\\multiple}
  & \tablehead{1}{r}{b}{Large\\multiple}
  & \tablehead{1}{r}{b}{Total}   \\
\hline
1982 & 98 & 129 & 620    & 847\\
1987 & 138 & 176 & 1000  & 1314\\
1991 & 173 & 248 & 1230  & 1651\\
1998\tablenote{predicted} & 200 & 300 & 1500  & 2000\\
\hline
\end{tabular}
%\source{Central Statistical Office, UK}
\caption{Average turnover per shop: by type
  of retail organisation}
\label{tab:a}
\end{table}


Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a \cite{EVH:Office} lacrimis? In the following we test enumrerate
environments up to the second level. In addition we look how
ridiculous large labels look.
\begin{enumerate}
\item
  An item \cite{Liang:1983}
\item
  Another item with sub entries
  \begin{enumerate}
  \item
   A sub entry \cite{Wang}
  \item
   Second sub entry
  \end{enumerate}
\item
  The final item with normal label.
\end{enumerate}
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia  fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?
\begin{description}
\item[Infandum]
 regina, iubes renovare dolorem, Troianas ut opes et lamentabile
 regnum cruerint Danai.
\item[Sed]
 si tantus amor casus cognoscere nostros et breviter Troiae supremum
 audire laborem, quamquam animus meminisse horret, luctuque refugit,
 incipiam.
\item[Lamentabile] regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia  fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?
\end{description}


Sed si tantus amor casus
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos. Sed si tantus amor casus
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.



Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?



Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos. Sed si tantus amor casus  \cite{Liang:1983}
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a  \cite{SJ:1999} lacrimis? Et iam nox umida caelo praecipitat,
suadentque cadentia sidera somnos. Sed si tantus amor casus
cognoscere nostros et breviter Troiae supremum audire laborem,
quamquam animus meminisse horret, luctuque refugit, incipiam.

\section{Infandum, regina, iubes renovare dolorem}

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?

Et iam nox umida caelo praecipitat, suadentque cadentia sidera
somnos. Sed si tantus amor casus cognoscere nostros et breviter Troiae
supremum audire \cite{Knuth:WEB} laborem, quamquam animus meminisse horret, luctuque
refugitum, refugit, incipitat,
suadenovare dolorem, Troianas ut opes Ulixi temperet breviter
Troiaeque ipse nostros et a lacrimis?

Infandum, regina, iubes renovare dolor casus cognosceret a lacrimis?

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?

Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint \cite{BrownAustin:2000} Danai; quaeque ipse
miserrima vidi, et quorum pars magna fui. Quis talia fando Myrmidonum
Dolopumve aut duri miles Ulixi temperet a lacrimis?  Infandum, regina,
iubes renovare dolorem, Troianas ut opes et lamentabile regnum
cruerint Danai; quaeque ipse miserrima vidi, et quorum pars magna
fui. Quis talia fando Myrmidonum Dolopumve aut duri miles Ulixi
temperet a lacrimis?

\begin{theacknowledgments}
Infandum, regina, iubes renovare dolorem, Troianas ut opes et
lamentabile regnum cruerint Danai; quaeque ipse miserrima vidi, et
quorum pars magna fui. Quis talia fando Myrmidonum Dolopumve aut duri
miles Ulixi temperet a lacrimis?
\end{theacknowledgments}

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\end{document}
