Weak neutral currentMoslim Sohani

• Intermediate bosons

• Weak charged currents

• Structure of neutral current

• Conclusion

Intermediate bosons 1

Charged Intermediate Bosons are essential

Intermediate bosons 1

Neutral Intermediate Boson has to be included

What’s the Structure of Weak Neutral Current?

Weak charged currents 1

Matter-Antimatter scattering is weaker than Matter-Matter or

Antimatter-Antimatter

Weak charged currents 2

Weak charged currents 3

dyd

parameterscalarLorentz

kpqpy

4

)(

)cos1(2

1./.

Weak charged currents 4

XN

XN

Weak charged currents 4

Attention

Weak Charged Currents

interact with Left handed particles

and Right handed

antiparticles.

1P

1P

1P

1P

1eP

1eP

1eP

1eP

Structure of neutral current 1

Same situation for Quarks shows that back scattering from opposite helicity Quark is forbidden

Structure of neutral current 2

Neutral Current might interact with Right handed particles as well as Left handed particles

Structure of neutral current 3

Structure of neutral current 4

Measurements proof the

interaction of Neutral current

with Right handed particles.

Conclusion

• Weak Charged Currents mediate interactions with right handed particles and left handed antiparticles.

• Weak Neutral Current mediates interaction with both right and left handed particles and their antiparticles.

Out look

• Electromagnetic interaction has the same structure as Weak Neutral Current and one can realize the unification of these two interactions.

• Assuming that the Z boson in Weak Interaction and in Electromagnetic interaction belong to the same family of intermediate bosons:

starting point to construct Electro-Weak Interaction Model.