1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
2 "http://www.w3.org/TR/REC-html40/loose.dtd">
5 <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
6 <meta name="GENERATOR" content="Mozilla/4.51 [en] (X11; I; Linux 2.2.5-15 i686) [Netscape]">
7 <title>PHOS FAST SIMULATION Proposal</title>
8 <!-- Changed by: Yves Schutz, 7-Dec-1999 -->
9 <link REL="stylesheet" href="http://www-subatech.in2p3.fr/~photons/gps_alice.css" type="text/css">
17 At the Offline meeting held during December 1999, it was decided
18 that each sub-detector makes a Use Case for a fast simulation scheme. Here is what we suggest for PHOS.
21 <a href="./images/usecasefastsimulation.eps">
22 <img SRC="./images/usecasefastsimulation.gif" ALT="[Use Case for fast simulation]" height=425 width=483>
25 <b> Figure 1.: </b> <i>Use Case for fast simulation. Only PHOS is implemented. Other detectors are ignored.
26 Click on image for full scale</i>
30 This has been implemented in a new class <a href="./html/AliPHOSvFast.html"> AliPHOSvFast </a> ( <a href="./html/AliPHOSvFast_Tree.ps">
31 inheritance tree </a> ). The synopsis goes as follow :
34 AliPHOSvFast::AliDetector
36 <b>CreateGeometry() </b> {
38 describes the coarse outline of PHOS as 5 boxes }
40 <b>StepManager()</b> {
42 when particle reaches PHOS {
44 modifiy the attributes (energy, momentum, type) of the primary particle according to the PHOS response
45 construct a "virtual" reconstructed particle }
46 save the reconstructed particle in a list }
48 <b>FinishEvent()</b> {
50 write the list in TreeR
51 write the TreeR to file }
54 <address class="left">
55 © <a href="mailto:schutz@in2p3.fr">Groupe Photons Subatech</a> <a href="http://www-subatech.in2p3.fr/~photons/subatech/en_index.shtml">[Go
56 to the GPS Home Page]</a></address>
58 <address class="right">
59 <!-- Created: Tue Oct 26 19:52:56 CEST 1999 -->
61 Last modified: Fri Mar 24 09:10:01 CET 2000
62 <!-- hhmts end --></address>
64 <!-- <div align=right><a href="http://validator.w3.org/check/referer"><img SRC="vh40.gif" ALT="Valid HTML 4.0!" BORDER=0 height=31 width=88></a><a href="http://jigsaw.w3.org/css-validator"><img SRC="vcss.gif" ALT="Valid CSS!" BORDER=0 height=31 width=88></a></div>-->