hnl.constants Class Reference

Public Member Functions
None	__init__ (self)

Public Attributes
	decayConstant
	GF
	s2thetaw
	heV
	hGeV

Detailed Description

Store some constants useful for HNL physics

Definition at line 89 of file hnl.py.

Constructor & Destructor Documentation

__init__()

None hnl.constants.__init__

(

self

)

Definition at line 94 of file hnl.py.

    def __init__(self) -> None:
        self.decayConstant = {
            "pi+": 0.130 * u.GeV,
            "pi0": 0.130 * u.GeV,
            "eta": 1.2 * 0.130 * u.GeV,
            "eta1": 0.152 * u.GeV,
            "eta_c": 0.335 * u.GeV,
            "rho+": 0.209 * u.GeV,
            "rho0": 0.209 * u.GeV,
            "omega": 0.195 * u.GeV,
            "phi": 0.229 * u.GeV,
            "D_s+": 0.249 * u.GeV,
            "D*_s+": 0.315 * u.GeV,
        }  # decay constants f_h of pseudoscalar and vector mesons
        self.GF = 1.166379e-05 / (u.GeV * u.GeV)  # Fermi's constant (GeV^-2)
        self.s2thetaw = 0.23126  # square sine 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!!
 
 
# Load some useful constants

Member Data Documentation

decayConstant

hnl.constants.decayConstant

Definition at line 95 of file hnl.py.

GF

hnl.constants.GF

Definition at line 108 of file hnl.py.

heV

hnl.constants.heV

Definition at line 110 of file hnl.py.

hGeV

hnl.constants.hGeV

Definition at line 111 of file hnl.py.

s2thetaw

hnl.constants.s2thetaw

Definition at line 109 of file hnl.py.

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

• python/hnl.py