[Rivet-svn] r3845 - schools/2012-CERN/handouts/day1

[blackhole at projects.hepforge.org]

Author: dgrell
Date: Mon Jul 23 15:45:31 2012
New Revision: 3845

Log:
Hw day1

Added:
   schools/2012-CERN/handouts/day1/Hw-day1.tex
      - copied, changed from r3843, schools/2011-Kyoto/handouts/day1/Hw-day1.tex

Copied and modified: schools/2012-CERN/handouts/day1/Hw-day1.tex (from r3843, schools/2011-Kyoto/handouts/day1/Hw-day1.tex)
==============================================================================
--- schools/2011-Kyoto/handouts/day1/Hw-day1.tex	Mon Jul 23 15:40:41 2012	(r3843, copy source)
+++ schools/2012-CERN/handouts/day1/Hw-day1.tex	Mon Jul 23 15:45:31 2012	(r3845)
@@ -1,18 +1,19 @@
 \documentclass{ipppcompcourse}
 
 \setlecturename{Herwig++ Tutorial}
-\setlecturedate{2011-09-05}
+\setlecturedate{2012-07-24}
 \setlecturesheet{1}
 
-\newcommand{\datapath}{\~{}/school/local/share/Herwig++}
+\newcommand{\datapath}{/opt/MCnet/Herwig++-2.6/share/Herwig++}
+%{\~{}/school/local/share/Herwig++}
 
 %\usepackage{hepnicenames}
 \newcommand{\hw}{\textsf{Herwig++}}
 \renewcommand{\baselinestretch}{1.2}
 \begin{document}
 \section{Preparation}
-The \hw{} homepage is at \cmd{http://projects.hepforge.org/herwig/}.
-To speed up the setup, we have pre-installed \hw{} version 2.5.1 for
+The \hw{} homepage is at \cmd{http://herwig.hepforge.org/}.
+To speed up the setup, we have pre-installed \hw{} version 2.6.0 for
 the tutorials, and have prepared a working directory for you. To use
 it, you should change to that directory, and copy the example LHC
 configuration file across from the installation's data directory.
@@ -27,7 +28,7 @@
 \inp{Herwig++ read LHC.in}\\
 \inp{Herwig++ run LHC.run -N100 -d1}\\ We'll explain the commands in the
 next section.
-The second step will take about a
+The second step will take about half a
 minute on the machines here. Most of this time is taken up by the
 constant initialization time, with the actual event generation lasting
 a few seconds.  
@@ -65,7 +66,7 @@
 the same momenta. Adding 10 of these runs together will \emph{not} be
 equivalent to running 1000 events! To make statistically independent
 runs, you need to specify a random seed, either with\\
-\inp{Herwig++ run LHC.run -N100 -d1 -seed 123456}\\
+\inp{Herwig++ run LHC.run -N100 -d1 --seed 123456}\\
 or, as we'll see now, in the \outp{LHC.in} file.
 
 \section{Input files}\label{details}
@@ -82,7 +83,7 @@
 for your own parameter modifications. The next few sections
 will go through this.
 
-The first command we ran (\cmd{Herwig++ read LHC.in}) takes the
+The first command we ran (\cmd{Herwig++ read LHC.in}) uses the
 default repository provided with the installation, and reads in the additional
 instructions from \outp{LHC.in} to modify the repository
 accordingly. A complete setup for a generator run will now be saved to
@@ -135,7 +136,7 @@
 within \hw{}. Copy the pre-prepared input file into your directory:\\
 \inp{cp \datapath/Graph.in .}\\
 We have disabled the hadronization and decay steps
- to keep the plot simpler. \\
+ to keep the plot simpler.\\
 %Enable the \emph{GraphvizPlot} analysis for LHC (the
 %line in \outp{LHC.in} which mentions \outp{/Herwig/Analysis/Plot}) and
 Run one event with\\ \inp{Herwig++ read Graph.in}\\ The \emph{Plot} analysis
@@ -150,12 +151,12 @@
 \begin{enumerate}
 \item Identify the Drell-Yan process. Has there been initial state radition?
 \item Keep track of the incoming protons and proton remnants. How many $2\to 2$ scatterings took place?
-\item Re-generate and look at 
-another event by changing the seed value in \textsf{Graph.in}.
+\item Re-generate 
+another event by changing the seed value in \textsf{Graph.in}. Look at the graph again.
 \end{enumerate}
 It is important to note that these plots only reflect the internal
 event structure in 
-the generator. \textbf{The internal lines do \emph{not} have a physical significance!}
+the generator. \textbf{The internal lines do \emph{not} have a physical significance! Please discuss this with us if you need clarification.}
 
 %% \subsection{Other analyses}
 %% {In the following exercises we will use Rivet for physics
@@ -274,7 +275,7 @@
 Thanks for trying \hw{}! If you have any questions later on, please
 ask us here, email us at\\ \cmd{herwig at projects.hepforge.org} 
 or have a look at
-\cmd{http://projects.hepforge.org/herwig/}, where many how-tos
+\cmd{http://herwig.hepforge.org/}, where many how-tos
 can be found. We're adding more as our time allows. For detailed documentation
 refer to our manual, \texttt{arxiv:0803.0883}.