B_d

M_d

GeV (calculated)

Gauge boson

Interaction

B₅

M_eα

3.7 × 10⁻⁶

A = photon

Electromagnetic

B₆

M_e/α

7 × 10⁻² (70.02 MeV)

g* = basic gluon

Strong

B₇

${\text{M}}_{\text{Z}}={\text{M}}_{\text{B6}}/{\alpha }_{\text{w}}^2$

91.1876 (given)

${\text{Z}}_{\text{L}}^0$

weak (left)

B₈

M₇/α² = M_Z/α²

1.71 × 10⁶

X_R

CP (right) nonconservation

B₉

M₈/α² = M_Z/α⁴

3.22 × 10¹⁰

X_L

CP (left) nonconservation

B₁₀

M₉/α² = M_Z/α⁶

6.04 × 10¹⁴

${\text{Z}}_{\text{R}}^0$

weak (right)

B₁₁

M₁₀/α² = M_Z/α⁸

1.13 × 10¹⁹

G

Gravity