Muon system simulation - Revision history

UglovTimofey: /* Version 0.2 */

2019-05-21T14:39:27Z

‎Version 0.2

2019-05-21T14:33:08Z

2018-11-14T16:12:58Z

‎Muon id feasibility study

2018-11-14T16:08:44Z

‎Muon id feasibility study

2018-11-14T16:04:34Z

‎Muon track smearing due to the multiple scattering

2018-11-13T01:49:38Z

2018-11-13T01:46:55Z

‎Muon track smearing due to the multiple scattering

2018-11-08T16:02:40Z

‎Results

2018-11-08T15:40:28Z

‎The source

2018-10-30T13:52:03Z

‎This page is dedicated to the sketch standalone simulation of the SCT detector based on pure Geant4

← Older revision		Revision as of 14:39, 21 May 2019
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	== Version 0.2 ==		== Version 0.2 ==
		+
		+	=== Tasks for the 0.2 version of the simulation tools ===
		+
		+	The main task for the second round of MC simulation is to supply the parametric simulation software with the data suitable for the fast simulation.
		+	The initial particle momenta range is [0.5,1.5] GeV/c, particle type: pi+, pi-, mu+, and mu-.
		+
		+
		+	=== Geometry ===
		+	We used the same detector geometry as in the version 0.1, except for the fact, that endcaps of the same layer structure have been added.
		+	The uniform magnetic field of 1.5T directed along beam line were applied to the volume inside the magnet coil.

@@ Line 4: / Line 4: @@
 Optimal toolkit in this case is pure Geant4 simulation with simplified geometry and physics lists, able to produce fast results and estimate main parameters and characteristics of the detector.
 === Tasks for the 0.1 version of the simulation tools ===
@@ Line 37: / Line 38: @@
 To compare detector response in case of pions and muons, pion and muon of the same sign were generated in the same event with identical momenta. During the event reconstruction all hits were categorized according to the original particle.
-== Results ==
+=== Results ===
 ====Muon track smearing due to the multiple scattering====
@@ Line 84: / Line 85: @@
 [[File:Tau 3.55 field off layers.png]]

@@ Line 65: / Line 65: @@
 <math>e^+e^- \to J/\psi \to \mu^+ \mu^-</math> at E=3.096 GeV.
-Magnetic off:
+Magnetic field off:
 [[File:Mu 3.096 field on layers.png]]
-Magnetic 1.5 Tesla on:
+Magnetic field 1.5 Tesla on:
 [[File:Mu 3.096 field off layers.png]]
@@ Line 77: / Line 77: @@
-Magnetic off:
+Magnetic field off:
 [[File:Tau 3.55 field on layers.png]]
-Magnetic 1.5 Tesla on:
+Magnetic field 1.5 Tesla on:
 [[File:Tau 3.55 field off layers.png]]

@@ Line 61: / Line 61: @@
 ====Muon id feasibility study====
-With the setup, described above, Monte Carlo simulation of the muon events for the 1st and 7th gap of absorber is shown. The smearing along Z axis is due to the multiple scattering on the calorimeter, magnet and absorber. Upper pictures corresponds to the energy-weighted position of the the hit, lower to the true position of muon/pion, respectively. The simulated physical process <math>e^+e^- \to J/\psi \to \mu^+ \mu^-</math> at E=3.096 GeV.
+With the setup, described above, Monte Carlo simulation of the muon events for the 1st and 7th gap of absorber is shown. The smearing along Z axis is due to the multiple scattering on the calorimeter, magnet and absorber. Upper pictures corresponds to the energy-weighted position of the the hit, lower to the true position of muon/pion, respectively. The simulated physical process
 The same for process <math>e^+e^- \to  \tau^+ \tau^-</math> at E=3.3.55GeV.
 [[File:Tau 3.55 field off layers.png]]

@@ Line 44: / Line 44: @@
 For the muon identification  purposes high spacial resolution is not needed, the optimal value should be of order of the scattering spot.
-With the setup, described above, Monte Carlo simulation of the muon events for the 1st and 7th gap of absorber is shown. The smearing along Z axis is due to the multiple scattering on the calorimeter, magnet and absorber. Upper pictures corresponds to the energy-weighted position of the the hit, lower to the true position of muon/pion, respectively. The simulated physical process <math>e^+e^- \to J/\psi \to \mu^+ \mu^-</math> at E=3.096 GeV.
+With the setup, described above, Monte Carlo simulation of the muon events for the 1st and 7th gap of absorber is shown. The smearing along Z axis is due to the multiple scattering on the calorimeter, magnet and absorber. Upper pictures corresponds to the energy-weighted position of the the hit, lower to the true position of muon/pion, respectively. The simulated physical process
-[[File:Muon jpsi field off smearing.png]]
+ <math>e^+e^- \to J/\psi \to \mu^+ \mu^-</math> at E=3.096 GeV.
-The same for process <math>e^+e^- \to  \tau^+ \tau^-</math> at E=3.3.55GeV.
+[[File:Mu 3.096 field off smearing.png]][[File:Mu 3.096 field on smearing.png]]
 [[File:Tau 3.55 field off smearing.png]]
 ====Muon id feasibility study====

← Older revision		Revision as of 01:49, 13 November 2018
Line 51:		Line 51:

	[[File:Tau 3.55 field off smearing.png]]		[[File:Tau 3.55 field off smearing.png]]
		+
		+	====Muon id feasibility study====
		+
		+	With the setup, described above, Monte Carlo simulation of the muon events for the 1st and 7th gap of absorber is shown. The smearing along Z axis is due to the multiple scattering on the calorimeter, magnet and absorber. Upper pictures corresponds to the energy-weighted position of the the hit, lower to the true position of muon/pion, respectively. The simulated physical process <math>e^+e^- \to J/\psi \to \mu^+ \mu^-</math> at E=3.096 GeV.
		+
		+	[[File:Muon jpsi field off layers.png]]
		+
		+	The same for process <math>e^+e^- \to \tau^+ \tau^-</math> at E=3.3.55GeV.
		+
		+	[[File:Tau 3.55 field off layers.png]]

← Older revision		Revision as of 16:02, 8 November 2018
Line 38:		Line 38:

	== Results ==		== Results ==
		+
		+	====Muon track smearing due to the multiple scattering====
		+
		+	One of the base characteristics of the muon system is spacial resolution. Since all charged tracks are subjected to the multiple scattering on the material of the inner detectors and absorber, and soft tracks scatters stronger, the use of the muon system as tracking detector is questionable.
		+	For the muon identification purposes high spacial resolution is not needed, the optimal value should be of order of the scattering spot.
		+
		+	With the setup, described above, Monte Carlo simulation of the muon events for the
		+
		+	[[File:Smearing no field mu from jpsi.png]]

@@ Line 34: / Line 34: @@
 === The source ===
-Muons and pions were simulated as particles originated from the primary vertex according to the various physical distribution, taken from [https://ctd.inp.nsk.su/wiki/index.php/MC_Data_Sets '''these samples''']. Only one particle per event was simulated.
+Muons and pions were simulated as particles originated from the primary vertex according to the various physical distribution, taken from [https://ctd.inp.nsk.su/wiki/index.php/MC_Data_Sets '''these samples'''].
 == Results ==

← Older revision		Revision as of 13:52, 30 October 2018
Line 35:		Line 35:

	Muons and pions were simulated as particles originated from the primary vertex according to the various physical distribution, taken from [https://ctd.inp.nsk.su/wiki/index.php/MC_Data_Sets '''these samples''']. Only one particle per event was simulated.		Muons and pions were simulated as particles originated from the primary vertex according to the various physical distribution, taken from [https://ctd.inp.nsk.su/wiki/index.php/MC_Data_Sets '''these samples''']. Only one particle per event was simulated.
		+
		+	== Results ==