rpvsusy.constants Class Reference

Public Member Functions
None	__init__ (self)

Public Attributes
	decayConstant
	GF
	MW
	gW2
	s2thetaw
	t2thetaw
	heV
	hGeV
	GST2

Detailed Description

Store some constants useful for HNL physics

Definition at line 123 of file rpvsusy.py.

Constructor & Destructor Documentation

__init__()

None rpvsusy.constants.__init__

(

self

)

Definition at line 128 of file rpvsusy.py.

    def __init__(self) -> None:
        self.decayConstant = {
            "K+": 0.156 * u.GeV,
            "K-": 0.156 * u.GeV,
            "K_L0": 0.156 / math.sqrt(2) * u.GeV,
            "K_S0": 0.156 / math.sqrt(2) * u.GeV,
            "K*0": 0.230 * u.GeV,
            "K*0_bar": 0.230 * u.GeV,
            "K*+": 0.230 * u.GeV,
            "K*-": 0.230 * u.GeV,
            "phi": 0.230 * u.GeV,
            "eta": -0.142 * u.GeV,
            "eta'": 0.038 * u.GeV,
            "D+": 0.205 * u.GeV,
            "D*+": 0.205 * u.GeV,
            "D-": 0.205 * u.GeV,
            "D*-": 0.205 * u.GeV,
            "D_s+": 0.259 * u.GeV,
            "D*_s+": 0.259 * u.GeV,
            "D_s-": 0.259 * u.GeV,
            "D*_s-": 0.259 * u.GeV,
            "B+": 0.191 * u.GeV,
            "B-": 0.191 * u.GeV,
            "B0": 0.191 * u.GeV,
            "B_s0": 0.228 * u.GeV,
            "B0_bar": 0.191 * u.GeV,
            "B_s0_bar": 0.228 * u.GeV,
        }
 
        self.GF = 1.166379e-05 / (u.GeV * u.GeV)  # Fermi's constant (GeV^-2)
        self.MW = 80.385 * u.GeV
        self.gW2 = self.GF / math.sqrt(2) * 8 * self.MW * self.MW  # SU(2)L gauge coupling squared
        self.s2thetaw = 0.23126  # square sine of the Weinberg angle
        self.t2thetaw = self.s2thetaw / (1 - self.s2thetaw)  # square tan of the Weinberg angle
        self.heV = 6.58211928 * pow(10.0, -16)  # no units or it messes up!!
        self.hGeV = self.heV * pow(10.0, -9)  # no units or it messes up!!
        # defined in Eq (30)--(32) of [1511.07436], but without
        # the coupling over sfermion mass, that will come later
        self.GST2 = {
            "slepton": self.gW2 * self.t2thetaw * 9.0 / 8.0,
            "sneutrino": self.gW2 * self.t2thetaw * 9.0 / 8.0,
            "tlepton": self.gW2 * self.t2thetaw * 1.0 / 32.0,
            "tneutrino": self.gW2 * self.t2thetaw * 1.0 / 32.0,
        }
 
 
# Load some useful constants

Member Data Documentation

decayConstant

rpvsusy.constants.decayConstant

Definition at line 129 of file rpvsusy.py.

GF

rpvsusy.constants.GF

Definition at line 157 of file rpvsusy.py.

GST2

rpvsusy.constants.GST2

Definition at line 166 of file rpvsusy.py.

gW2

rpvsusy.constants.gW2

Definition at line 159 of file rpvsusy.py.

heV

rpvsusy.constants.heV

Definition at line 162 of file rpvsusy.py.

hGeV

rpvsusy.constants.hGeV

Definition at line 163 of file rpvsusy.py.

MW

rpvsusy.constants.MW

Definition at line 158 of file rpvsusy.py.

s2thetaw

rpvsusy.constants.s2thetaw

Definition at line 160 of file rpvsusy.py.

t2thetaw

rpvsusy.constants.t2thetaw

Definition at line 161 of file rpvsusy.py.

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The documentation for this class was generated from the following file:

• python/rpvsusy.py