It is shown that the interference between <p(p)over bar> --> J/psi --> e(+)e(-) and <p(p)over bar> --> e(+)e(-) can be measured with good accuracy at Fermilab. Therefore the phase of the strong decay amplitude of the J/psi with respect to the proton magnetic form factor will be obtained. There are hints, from J/psi --> <n(n)over bar> and other J/psi decays, of an unexpected similar to 90 degrees phase. (C) 1997 Published by Elsevier Science B.V.

Measuring the phase of the J/psi strong decay amplitudes

LUPPI, Eleonora
1997

Abstract

It is shown that the interference between --> J/psi --> e(+)e(-) and --> e(+)e(-) can be measured with good accuracy at Fermilab. Therefore the phase of the strong decay amplitude of the J/psi with respect to the proton magnetic form factor will be obtained. There are hints, from J/psi --> and other J/psi decays, of an unexpected similar to 90 degrees phase. (C) 1997 Published by Elsevier Science B.V.
1997
Baldini, R; Bini, C; Luppi, Eleonora
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/1211767
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