B_d

M_d

GeV (Calculated)

Gauge Boson

Interaction

B₅

M_ea

3.7 × 10⁻⁶

A = photon

Electromagnetic

B₆

M_e/a

7 × 10⁻²

p_1/2

Strong

B₇

91.177 (given)

Weak (left)

B₈

M₇/a²

1.7 × 10⁶

X_R

CP (right) nonconservation

B₉

M₈/a²

3.2 × 10¹⁰

X_L

CP (left) nonconservation

B₁₀

M₉/a²

6.0 × 10¹⁴

Weak (right)

B₁₁

M₁₀/a²

1.1 × 10¹⁹

G

Gravity