Possible Clues:

• One quark plus one antiquark
• Particle very much accepted by blokes
• This person, family member, produces a tiny bit of physics
• People divided by such a tiny thing
• Bit sorted by its spin
• Unstable physics particle
• Something small or very big turning up to impede soldiers
• Sub-atomic particle is consequently in pieces
• ____ is repeatedly given out by emissions?
• Smaller particle than a proton