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Models

Table of Contents

Here is a list of all available models with links to the summary tables of model parameters and flags. The parameters and flags are inherited from a parent model class to a child model class.

A complete list of observables are available in the function ThObsFactory::ThObsFactory(). Not all the observables can be used in each model. For example, in obsThFactory["MtMSbar"], MtMSbar is the name that should be used to call the observable. For details on usage please read the Usage Page.

QCD:

  • Model parameters: [Summary table]
  • Model flags: None
  • NOTE: QCD cannot be set as a model in the model configuration file

StandardModel:

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: This is a Model class containing parameters and functions associated with the Standard Model. This class is inherited from the QCD class, which defines parameters related to QCD
  • NOTE: StandardModel is the minimum model that needs to be set in the model configuration file

NPSTU

  • Model parameters: [Summary table
  • Model flags: None
  • Model description: This is a Model class containing the necessary functions to compute new physics contributions to the electroweak precision observables with the Peskin-Takeuchi oblique parameters [Peskin:1990zt], [Peskin:1991sw].

NPSTUZbbbarLR

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: This is a Model class containing the necessary functions to compute new physics contributions to the electroweak precision observables with the Peskin-Takeuchi oblique parameters [Peskin:1990zt], [Peskin:1991sw] and with additional shifts to the left-handed and right-handed \(Zb\bar{b}\) vertices.

NPEpsilons:

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: This is a Model class containing parameters and functions to work with the epsilon paramterization [Altarelli:1990zd], [Altarelli:1991fk],[Altarelli:1993sz] for new physics contributions to the electroweak precision observables.

NPEpsilons_pureNP:

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: This is a Model class containing parameters and functions to work with the modified epsilon parameters \(\delta\,\varepsilon_{1,2,3,b}\) which parameterize only new physics contributions to the electroweak precision observables. See [Altarelli:1990zd], [Altarelli:1991fk],[Altarelli:1993sz] for the original epsilon parameterization.

NPZbbbar (variant: NPZbbbarLR):

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: This class is a Model class containing the necessary functions to work with new physics contributions to electroweak precision observables, in the form of contributions to the neutral current couplings of the bottom quark. Variant: \(\delta g_{L}^b\) and \(\delta g_{R}^b\) are used for the model parameters, instead of \(\delta g_{V}^b\) and \(\delta g_{A}^b\)

NPZbbbarLinearized (variant: NPZbbbarLinearizedLR):

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: This class is a linearized Model class containing the necessary functions to work with new physics contributions to electroweak precision observables, in the form of contributions to the neutral current couplings of the bottom quark. Variant: \(\delta g_{L}^b\) and \(\delta g_{R}^b\) are used for the model parameters, instead of \(\delta g_{V}^b\) and \(\delta g_{A}^b\)

NPSMEFTd6 (variant: NPSMEFTd6_LFU_QFU)

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: This is a Model class containing parameters and functions associated with the general dimension-six effective Lagrangian. Use the model name "NPSMEFTd6_LFU_QFU" to assume lepton and quark flavour universality. The implementation is written in the basis of [Grzadkowski:2010es]. For convenience, the parameterization also includes operators appearing in other common bases. In particular, the complete set of parameters contains 4 redundancies, given by the coefficients \(C_{2B,2W,DHB,DHW,DB,DW} \), which correspond to operators not included in the basis of [Grzadkowski:2010es]. For meaningful physical results one must make sure to include only a complete set of interactions in a given analysis.

HiggsKvKf

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: This is a Model class containing parameters and functions associated with an extension of the StandardModel where Higgs couplings to all vector bosons are rescaled by \(\kappa_v\) and Higgs couplings to all fermions are rescaled by \(\kappa_f\). The invisible decay width is also parametrized independently by Br \((H\to invisible)\). This class inherits from the NPbase class, which defines parameters related to generic extensions of the StandardModel Higgs sector.

HiggsKvKfgen

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: This is a Model class containing parameters and functions associated with an extension of the StandardModel where Higgs couplings to all vector bosons are rescaled by \(\kappa_v\) and Higgs couplings to all up, down and lepton fermions are rescaled by \(\kappa_u, \kappa_d, \kappa_l\) respectively. The invisible decay width is also parametrized independently by Br \((H\to invisible)\). This class inherits from the NPbase class, which defines parameters related to generic extensions of the StandardModel Higgs sector.

HiggsKvgenKfgen

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: This is a Model class containing parameters and functions associated with an extension of the StandardModel where Higgs couplings to W bosons are rescaled by \(\kappa_W\), Higgs couplings to Z bosons are rescaled by \(\kappa_Z\) and Higgs couplings to all up, down and lepton fermions are rescaled by \(\kappa_u, \kappa_d, \kappa_l\) respectively. The invisible decay width is also parametrized independently by Br \((H\to invisible)\). This class inherits from the NPbase class, which defines parameters related to generic extensions of the StandardModel Higgs sector.

HiggsKigen

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: This is a Model class containing parameters and functions associated to rescaling the Higgs decay into vector bosons ( \(\kappa_W,\kappa_Z\)), gluons ( \(\kappa_g\)), photons ( \(\kappa_\gamma\)), Z and photons ( \(\kappa_{Z\gamma}\)) and fermions ( \(\kappa_{u,c,t}, \kappa_{d,s,b}, \kappa_{e\mu\tau}\)) (as well as the corresponding production mechanisms) with respect to the StandardModel. The possibility of extra decay width is also parametrized independently by Br \((H\to invisible)\) and Br \((H\to exotic)\). This class inherits from the NPbase class, which defines parameters related to generic extensions of the StandardModel Higgs sector.

HiggsChiral

FlavourWilsonCoefficient

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: A Model for NP contributions to flavour through shifts to Standard Model Wilson coefficients for \(\Delta F=1\) processes.

FlavourWilsonCoefficient_DF2

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: A Model for NP contributions to flavour through shifts to Standard Model Wilson coefficients for \(\Delta F=2\) processes.

RealWeakEFTLFV

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: A Model for WEFT LFV contributions to \(\Delta F=1\) processes like \( b\to s\) decays.

RealWeakEFTCC (variant: RealWeakEFTCCPM)

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: A Model for NP contributions to charged current processes like \(b\to c\) decays. Variant: the +/- basis for the Wilson coefficients.

THDM

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: The \(Z_2\) symmetric Two-Higgs-Doublet models. The theoretical constraints are the positivity bounds (boundedness from below) and the requirement that the electroweak minimum be the global minimum of the scalar potential as well as the LO and NLO(+) unitarity conditions. The experimental constraints comprise electroweak precision observables (STU), Higgs signal strengths, direct searches for scalar particles and a set of flavour observables ( \(B \to X_s \gamma\), \(B_s\) mixing, \(B \to \tau \nu\), \(B \to D^{(*)} \tau \nu\) and the anomalous magnetic moment of the muon). Also the renormalization group equations are implemented at next-to-leading order.

GeorgiMachacek

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: The Georgi-Machacek model extends the Standard Model by two scalar triplets. Among the implemented theoretical constraints are positivity of the scalar potential and the unitarity conditions. As experimental constraints, Higgs signal strengths and direct searches for neutral, singly and doubly charged scalars are available.

GeneralTHDM

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: The general symmetric Two-Higgs-Doublet models. While the theoretical bounds (positivity, unitarity and stability of the Higgs potential) as well as the electroweak STU pseudo-observables are available in the most general case, the Higgs and flavour observables are currently only implemented in the flavour aligned limiting case.

THDMW

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: The extension of either the Standard Model or the \(Z_2\) symmetric Two-Higgs-Doublet model by a scalar octet. The Standard Model extension by a scalar octet can be accessed setting the THDMWmodel flag to "ManoharWise". A custodial limiting case of this model can be obtained setting the flag to "custodialMW". The THDM plus octet can be address by attributing "custodial1" to the THDMWmodel flag. The implemented observables are positivity, unitarity, Higgs signal strengths and electroweak precision measurements.

SUSY

  • Model parameters: [Summary table]
  • Model flags: [Summary table]
  • Model description: This is a Model for the basic set of SUSY parameters. These can be inherited by other SUSY models like GeneralSUSY. The spectrum is computed by the SUSYSpectrum code.

GeneralSUSY

  • Model parameters: [Summary table]
  • Model flags: None
  • Model description: This is a Model for the full general SUSY with full complex squark and slepton squared mass matrices and trilinear couplings