Why is the Higgs boson not a gauge boson?

In case of Higgs boson the spin is zero, therefore it is a scalar. A scalar has only a magnitude and there is no direction. So a scalar particle cannot be a gauge boson and it is NOT a mediator of force. It couples to a fermion to impart it with a non zero mass.

What is difference between boson and photon?

While photons and electrons are both fundamental particles, bosons are a class of particles under which photons lie. So basically, photons form a part of a bigger class of particles called bosons, and electrons form a part of another bigger class of particles called fermions.

What charge does a photon carry?

Photons have no charge, no resting mass, and travel at the speed of light. Photons are emitted by the action of charged particles, although they can be emitted by other methods including radioactive decay.

Why photon does not interact with Higgs field?

Photons don’t interact (much) with the Higgs because the Higgs is electrically neutral. The unbroken U(1) gauge symmetry of electromagnetism means that quantum effects, that give the Higgs effective EM multipole moments, net out to zero in the photon mass.

What is the purpose of the Higgs boson?

The Higgs boson is the fundamental particle associated with the Higgs field, a field that gives mass to other fundamental particles such as electrons and quarks. A particle’s mass determines how much it resists changing its speed or position when it encounters a force.

Why do photons have no charge?

A charged particles produced electric field which in turn produces a magnetic force. If there is a change in electromagnetic field that change will be propagated in waves. So photons don’t carry any electric field and thus no charge.

Is photon a charge particle?

A photon is massless, has no electric charge, and is a stable particle. In a vacuum, a photon has three possible polarization states. The photon is the gauge boson for electromagnetism, and therefore all other quantum numbers of the photon (such as lepton number, baryon number, and flavour quantum numbers) are zero.

What is the difference between QCD and QED?

In QED the photon does not carry the charge of the EM interaction (photons are electrically neutral) In contrast, in QCD the gluons do carry colour charge Gluon Self-Interactions Two new vertices (no QED analogues) triple-gluon vertex quartic-gluon vertex

Can mesons have a colour wave function?

•Colour confinement implies that hadrons only exist in colour singlet states so the colour wave-function for mesons is: Can we have a state? i.e. by adding a quark to the above octet can we form a state with . The answer is clear no. bound states do not exist in nature. Baryon Colour Wave-function

Are all hadrons mesons or baryons?

Anti-symmetric colour wave-function Allowed Hadrons i.e. the possible colour singlet states Mesons and Baryons Exotic states, e.g. pentaquarks To date all confirmed hadrons are either mesons or baryons. However, some recent (but not entirely convincing) “evidence” for pentaquark states