GlashowResonanceLeptonic

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概要: 入れ子 | フィールド | コンストラクタ | メソッド

詳細: フィールド | コンストラクタ | メソッド

iceCube.uhe.interactions
クラス GlashowResonanceLeptonic

java.lang.Object
  iceCube.uhe.interactions.GlashowResonanceLeptonic

すべての実装されたインタフェース:: java.io.Serializable, Function

直系の既知のサブクラス:: GlashowResonanceHadronic

public class GlashowResonanceLeptonic
extends java.lang.Object
implements Function
extends java.lang.Object
implements Function

The Glashow Resonance reaction with W into the leptonic decay

   \bar{nu_e} + e^{-1} -> \bar{nu_l} + l ^{-1}

The approximation that

      1. Masses of the produced leptons are negligible
      2. Energy of incoming anti electron neutrino is by far higher
         than the electron mass.

has been introduced to calculate the differential cross section The inelasiticity parameter y is here difined as

     y = 1 - E_{l^{-1}}/E_{\bar{\nu_e}}

Written by S. Yoshida November 20 2007

関連項目:: 直列化された形式

フィールドの概要
`protected double`	`chargePerNucleon`
`static double`	`G_F` Fermi Coupling Constant [GeV ^{-2}]
`static double`	`gammaW` decay width of W [GeV]
`static double`	`hbar_c` conversion constant in the natural unit [cm GeV]
`protected boolean`	`isPerNucleon`
`static double`	`massE` mass of Electron [GeV]
`static double`	`massW` mass of W [GeV]

コンストラクタの概要
`GlashowResonanceLeptonic(ParticlePoint s, int flavor)` Constructor: Register the ParticlePoint classes and the prodocued flavor - 0 for e, 1 for mu, 2 for tau

メソッドの概要
`protected double`	`areaFactorByWeakCoupling(double invariant_s)` the area given by the Weak coupling constant A = G_F^2 s / pi s: Lorentz invariant energy squared
`void`	`calculateCrossSectionAsPerElectron()` Calculate the differential cross section as the one per electron.
`void`	`calculateCrossSectionAsPerNucleon()` Calculate the differential cross section as the one per nucleon.
`double`	`getDSigmaDy(double y)` return dSigma/dy [cm^2] where y = 1 - - E_{l^{-1}}/E_{\bar{\nu_e}}
`double`	`getDSigmaDz(double z)` Differential cross section dsigma/dz [cm^2] z = Erecoiling/Eincoming -- inelasticity parameter
`double`	`getEnergyCut()`
`double`	`getFunction(int functionIndex, double[] parameters, double x)` Method for interface .
`double`	`getIncidentParticleEnergy()`
`double`	`getSigma()` return total cross section [cm^2]
`double`	`getYDSigmaDy(double lowerY, double upperY)` Integral y*dSigma/dy over a given range to obtain the inelasticity distribution.
`double`	`getYmax()`
`double`	`getYmin()` Getting the range of allowed y for a given interaction
`double`	`getZDSigmaDZ(double lowerZ, double upperZ)` Integral z*dSigma/dz over a given range to obtain the inelasticity distribution.
`double`	`integralDSigmaDy(double lowerY, double upperY)` Integral dSigma/dy over a given range to obtain a partial cross section
`double`	`integralDSigmaDz(double lowerZ, double upperZ)` Integral dSigma/dz over a given range to obtain a partial cross section
`java.lang.String`	`interactionName()` Show Name of the Interaction
`boolean`	`isValidInelasticity(double y)` Checking the range of the given inelasticity y that is determined in an individual interaction channel.
`boolean`	`isValidParticle(Particle p)` Checking the particle kind involved with a given interaction.
`void`	`setEnergyCut(double cutEnergy)` Energy Cut Parameter in integration to obtain the total cross section.
`void`	`setIncidentParticleEnergy(double energy)` Set The incident particle energy [GeV].
`void`	`setIncidentParticleEnergy(int iLogE)`
`void`	`showIntegralErrorMessage(double lowerY, double upperY)` Error message utility
`protected double`	`wResonance(double invariant_s)` W resonance function (dimension less) described by the Lorentzian

クラス java.lang.Object から継承されたメソッド
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

インタフェース numRecipes.Function から継承されたメソッド
`getFunction`

フィールドの詳細

isPerNucleon

protected boolean isPerNucleon

chargePerNucleon

protected double chargePerNucleon

G_F

public static final double G_F

Fermi Coupling Constant [GeV ^{-2}]

関連項目:: 定数フィールド値

hbar_c

public static final double hbar_c

conversion constant in the natural unit [cm GeV]

関連項目:: 定数フィールド値

massW

public static final double massW

mass of W [GeV]

関連項目:: 定数フィールド値

gammaW

public static final double gammaW

decay width of W [GeV]

関連項目:: 定数フィールド値

massE

public static final double massE

mass of Electron [GeV]

コンストラクタの詳細

GlashowResonanceLeptonic

public GlashowResonanceLeptonic(ParticlePoint s,
                                int flavor)

Constructor: Register the ParticlePoint classes and the prodocued flavor - 0 for e, 1 for mu, 2 for tau

メソッドの詳細

isValidParticle

public boolean isValidParticle(Particle p)

Checking the particle kind involved with a given interaction. Only electron neutrino is allowed to be involved with the Glashow resonance in the medium. This is the overriden method from Interactions.java

calculateCrossSectionAsPerNucleon

public void calculateCrossSectionAsPerNucleon()

Calculate the differential cross section as the one per nucleon. for instance in the case of ice, the number of electrons per nuclei is approximately (1 x 8 + 2 x1) - corresponding to H_2 0 !! -- is multiplied to the cross section.

calculateCrossSectionAsPerElectron

public void calculateCrossSectionAsPerElectron()

Calculate the differential cross section as the one per electron. This is simple - because the Glashow resonance is subject to electron.

getDSigmaDy

public double getDSigmaDy(double y)

return dSigma/dy [cm^2] where y = 1 - - E_{l^{-1}}/E_{\bar{\nu_e}}

getSigma

public double getSigma()

return total cross section [cm^2]

isValidInelasticity

public boolean isValidInelasticity(double y)

Checking the range of the given inelasticity y that is determined in an individual interaction channel.

getYmin

public double getYmin()

Getting the range of allowed y for a given interaction

getYmax

public double getYmax()

areaFactorByWeakCoupling

protected double areaFactorByWeakCoupling(double invariant_s)

the area given by the Weak coupling constant

        A = G_F^2 s / pi    s: Lorentz invariant energy squared

wResonance

protected double wResonance(double invariant_s)

W resonance function (dimension less) described by the Lorentzian

interactionName

public java.lang.String interactionName()

Show Name of the Interaction

setIncidentParticleEnergy

public void setIncidentParticleEnergy(double energy)

        Set The incident particle energy [GeV].
        The default value has been given by the constructor
        Interactions( ) with p.getEnergy( ) where p is 
        the Particle class. You might want to set, however,
        a different value such as 
        logE = logEnergyMinimum + deltaLogE*ilogE
        where ilogE is i'th index of the logEnergyMatrix
        in the Particle class p. This method provides you
        with a way to put the incident particle energy.

setIncidentParticleEnergy

public void setIncidentParticleEnergy(int iLogE)

getIncidentParticleEnergy

public double getIncidentParticleEnergy()

getDSigmaDz

public double getDSigmaDz(double z)

        Differential cross section dsigma/dz [cm^2]
        z = Erecoiling/Eincoming -- inelasticity parameter

setEnergyCut

public void setEnergyCut(double cutEnergy)

Energy Cut Parameter in integration to obtain the total cross section.

getEnergyCut

public double getEnergyCut()

integralDSigmaDy

public double integralDSigmaDy(double lowerY,
                               double upperY)

Integral dSigma/dy over a given range to obtain a partial cross section

integralDSigmaDz

public double integralDSigmaDz(double lowerZ,
                               double upperZ)

Integral dSigma/dz over a given range to obtain a partial cross section

getYDSigmaDy

public double getYDSigmaDy(double lowerY,
                           double upperY)

Integral y*dSigma/dy over a given range to obtain the inelasticity distribution. The energy transfer probability would also require this value.

getZDSigmaDZ

public double getZDSigmaDZ(double lowerZ,
                           double upperZ)

Integral z*dSigma/dz over a given range to obtain the inelasticity distribution. The energy transfer probability would also require this value. z = 1-y

getFunction

public double getFunction(int functionIndex,
                          double[] parameters,
                          double x)

        Method for interface . 
        Interface the differntial cross sections given here
        to the utility methods such as the Romberg
        Integration code that is desinged for a genereal
        function in form of Func(x).

        functionIndex     1     dsigma/dy
        functionIndex     2     dsigma/dz  z = y-1
        functionIndex     3     y x dsigma/dy 
        functionIndex     4     z x dsigma/dz

定義:: インタフェース Function 内の getFunction

showIntegralErrorMessage

public void showIntegralErrorMessage(double lowerY,
                                     double upperY)

Error message utility

概要

パッケージ

クラス

階層ツリー

非推奨 API

索引

ヘルプ

前のクラス 次のクラス

フレームあり フレームなし

概要: 入れ子 | フィールド | コンストラクタ | メソッド

詳細: フィールド | コンストラクタ | メソッド

iceCube.uhe.interactions クラス GlashowResonanceLeptonic

isPerNucleon

chargePerNucleon

G_F

hbar_c

massW

gammaW

massE

GlashowResonanceLeptonic

isValidParticle

calculateCrossSectionAsPerNucleon

calculateCrossSectionAsPerElectron

getDSigmaDy

getSigma

isValidInelasticity

getYmin

getYmax

areaFactorByWeakCoupling

wResonance

interactionName

setIncidentParticleEnergy

setIncidentParticleEnergy

getIncidentParticleEnergy

getDSigmaDz

setEnergyCut

getEnergyCut

integralDSigmaDy

integralDSigmaDz

getYDSigmaDy

getZDSigmaDZ

getFunction

showIntegralErrorMessage

iceCube.uhe.interactions
クラス GlashowResonanceLeptonic