The charmonium mass spectrum

27/06/01


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Sommario

The charmonium mass spectrum

Outline

The November revolution

The discovery of the J/y

The discovery of the J/y

What is this resonance made of?

Why y?

Experimental techniques

Electron-Positron annihilations

Crystal Ball

Proton-antiproton annihilations

E760/E835 at Fermilab

Two photon collisions

Resonance scan

Beam energy measurement

The charmonium spectrum

The fundamental state

The fundamental state

The state

The state

The resonance

The resonance

The P wave singlet state hc

The resonance

The state

The state

The state

The state

The D wave states

The D wave states

Conclusions