1 status of software tools akiya miyamoto kek 8 th acfa, exco, daegu 12 july 2005 short summary of...

1

Status of Software ToolsAkiya Miyamoto

KEK8th ACFA, EXCO, Daegu

12 July 2005

Short summary of work done by

K.Fujii(KEK), T.Fujikawa(Tohoku), K.Kawagoe(Kobe), T.Takeshita(Shinshu),H.Matsunaga(Tsukuba), A.Yamaguchi(Tsukuba), Y.Yamaguchi(Tsukuba),T.Nagamine(Tohoku), S.Yamamoto(GUAS), H.Ono(Niigata), T.Yoshioka(Tokyo), A.L.C.Sanchez(MISIIT), …

2A.Miyamoto , 8th ACFA, 12 July 2005

lcbase : configuration files

Leda : Analysis tools (Kalman fitter, 4vector and jet findinder utilities )

jsf : Root-based framework lclib : QuickSim and other fortran based utilities physsim : Helas-based generator

Jupiter : Full simulation based on Geant4 Uranus : Data analysis packages Satellites : Data analysis packages for MC data

Overview of our tools

We use only C++, except old fortran tools.


QuickSim overview

Purpose: simulate detector effects for physics study Components:

VTX, IT, TPC, CAL Model for tracker

circular trajectory parabolic trajectory With multiple scattering, without energy loss Equally spacing sampling

Model for Calorimeter EM signal by e/, HD signal by hadron, muon no signal Segmented calorimeter. Lateral spreads are generated b

y an analytic form.


QuickSim update

Change in source code Gas density in tracker, Cal. Shower shapre can be changed by inp

ut data card. GLD-V2 : new parameter file for GLD configuration

Beam pipe: r=1.5cm, Be, 25m VTX : (r,thickness)=(1.9cm,20m), (4.1,200), (6.3,200)

not consistent with Sugimoto san’s parameter yet. Beam pipe and VTX 1st layer parameter are not realistic to rep

roduce performances. TPC: r=40~205cm, 200 sampling,

r=150m, z=1mm CAL : EM segmentation 2cm equivalent

HD segmentation 6cm equivalent Parameters for lateral spread have not been changed.


QuickSim Tracker performance

Momentum resolution similar to the Jupiter/Satellites resultIP resolution at 1 GeV is about factor 2 worse than the Jupiter/Satellites result


Higgs signals by QuickSim

Mh=116.2GeV/c2

M=3.81 GeV/c2

Mh=118.4GeV/c2

M=4.02 GeV/c2 Mh=117.6 GeV/c2

M=4.808 GeV/c2

Criteria for event selections are same

Possible improvments: - parameters of track-cluster matching - detector configuration dependant event selection - ……


Jupiter/Satellites Concepts

JUPITERJLC Unified

Particle Interactionand

Tracking EmulatoR

IOInput/Outputmodule set

URANUS

LEDA

Monte-Calro Exact hits ToIntermediate Simulated output

Unified Reconstructionand

ANalysis Utility Set

Library Extention for

Data Analysis

METISSatellites

Geant4 basedSimulator

JSF/ROOT basedFramework

JSF: the analysis flow controller based on ROOT The release includes event generators, Quick Simulator, and simple event display

MC truth generator Event Reconstruction

Tools for simulation Tools For real data


Jupiter feature - 1

Based on Geant4 7.0p1 Modular organization of source codes for easy

installation of sub-detectors Geometry

parameters ( size, material, etc ) can be modified by input ASCII file.

Only simple geometries are implemented ( OK for the detector optimization )

Input: StdHep file(ASCII, Binary), HepEvt, CAIN, or any

generators implemented in JSF.


Jupiter feature - 2

Run mode: A standalone Geant4 application JSF application to output a ROOT file.

Output: Exact Hits of each detectors (Smearing in Satellites) Pre- and Post- Hits at before/after Calorimeter

Used to record true track information which enter CAL. Format: ROOT (standard), ASCII(debug), LCIO

Physics List LCPhysicsList QGSP, LHEP, …

Calorimeter resolution : Depends on physics list, and not as good as we expected for single particle


Geometry in Jupiter

Solenoid

Hadron Calorimeter

Muon/Iron

Elemag. Calorimeter IT VTX

Forward Cal.

QC1

TPC


Calorimeter Geometry

40 cm

270 cm

210 cm

Full One Tower　 EM + HD

27 X0

6.1λ

Default sensor size:EM: 4cmx4cmx1mm, 38 layersHD:12cmx12cmx2mm, 130 layers

ReplicaPhi direction : Tower and mini-tower

Sandwich structure of X/Y scinti structure can be defined.


Detector Parameters GLD_V1: as an initial set of detector parameters Beam Pipe : 1.8cm, Be 500mt

VTX : 4 layers from R=2.4cm to 6.0cm, Si 330mt, |cos|<0.9r=z=4m, Cylindrical shape, not FPCCD geometry yet

IT : 4 layers from R=9cm to 30cm, Si 600mt, |cos|<0.9 r=z=10m, Cylindrical shape

TPC : R=40cm to 206cm, |Z|<235cm, # of sampling 200 r=150m, z=500m, Gas P10

Solenoid : 3T Muon : Barrel : 4 mud layers, total 270cmt Fe

Endcap : 5 mud layers, total 260cmt Fe

Signals are smeared in SatellitesAll parameters needs to be optimized


New IR/VTX geometryVTX

FCAL(W)W-Mask

CH2 mask

BCAL(W)

QC1

Beam Pipe: r=1.5cm,250mt BeVTX: r=2.0,2.2, 3.2,3.4,4.8, 5.0 cm L=13,13, 40,40, 40,40 (cm) Thickness=50m r=z=2m

IT

Geometry for 2mrad crossing angle.

Work in progress: - 20mrad crossing - Forward tracker(FT) - Sensitive detector for FCAL/BCAL/FT


Jupiter for background studies LCBDS

Developed at U. of Tokyo;Tanabe san, Abe san, and their colleagues. Geant4 based simulator for the beam delivery and the dump line of ILC

( from the exit of main linac to the beam dump) Inputs to LCBDS :

SAD data file are used to define geometry easy to follow changes of ILC parameters.

Accelerator components are approximated by cubic and/or cylindical shape Output from LCBDS:

Synchrotron ’s, muons, off-momentum electrons, etc are created Particles information near the interaction point are saved in StdHep ASCII f

ormat Inputs to Jupiter Status

First version to write StdHep data were prepared. Waiting for the confirmation by Jupiter.


Jupiter for background studies - 2

CAIN Simulator for beamstrahlung effects Generates low energy e+/e-, g, and off-momentum ele

ctrons Interface to CAIN data exists in Jupiter

IR geometry Still old configuration for GLC. Urgent updates are

required.


Typical Background events

100 e+/e- CAIN events1 bunch contains ~ 66k eventsILC 500 GeV nominal parameter

CH4 maskBCAL

FCAL

TPC

Ready for background studies !


Metis package Metis is a collection of reconstruction tools for Jupiter data. Initial aim was to prepare a minimum set of Metis modules for

studies of Particle Flow Algorithm. Novice users will be able to do physics analysis using

information of PFO classes. As a first step, a cheated track finder and a cluster maker, etc

are in preparation in order to know ultimate performance.

Each module is independent, thus it is easy to implement different reconstruction algorithms

Real clustering codes are prepared using this framework


make smeared TPC hits from exact hit

make tracks from TPC

make hybrid tracks ( TPC+IT+VTX)

make smeared/merged CAL hits from exact hit

make cluster from CAL hits

make Particle Flow Objects

jet clustering

Jupiter result

Physics study

Metis Analysis

• Root file

• Khalman fitter• No track finder yet

•Strip/Tile

• Cheated/Real Clustering/PFA

JSF Framework


Cheated PFO analysis

ZH event at Ecm=500 GeV

By K.Fujii(KEK), S.Yamamoto(GUAS), A.Yamaguchi(Tsukuba)

- Exact hit points of detectors are displayed.-Hits belong to the same PFO are shown with the same color

-A framework of event display in JSF is used.


Web information

Our software tools are maintained in CVS server,jlccvs.kek.jp. At http://jlccvs.kek.jp/,

Description about how to download latest version. Web interface to the CVS repository,

http://jlccvs.kek.jp/cgi-bin/cvsweb.cgi/ Snap shot of source codes.

http://jlccvs.kek.jp/snapshots/

SimTools: binary codes of our tools Web page: http://acfahep.kek.jp/subg/sim/simtools/index.html Examples and documents are also prepared. The latest version: SimTools-1-01 (May, 2005). New version will be prep

ared soon. GLD Software page:

http://ilcphys.kek.jp/soft/index.html


Summary Studies of detector performances based on Jupiter/Satellites have be

en performed by many people, which are covered by other parallel session talks.

Implementation of new geometry in Jupiter has started for studies of background and IR design.

QuickSim Performance of tracker and Higgs signal were studied using GLD-V

2 parameter set. Detector parameters can be changed easily, but consistency with

full simulator is not automatic.Please use it with caution.

Jupiter users/developers meet every Tuesday 13:30-15:00 (JST)at TV meeting (KEK MCU, ID 31300). Please join.

1 status of software tools akiya miyamoto kek 8 th acfa, exco, daegu 12 july 2005 short summary of...

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