Electromagnetic n - delta transition form-factors in a light front constituent quark model

Cardarelli, F.; Pace, E.; Salme, G.; Simula, S.

doi:10.1016/0370-2693(95)01612-0

Electromagnetic n - delta transition form-factors in a light front constituent quark model

F. Cardarelli
(
- INFN, Rome
)
,
E. Pace
(
- INFN, Rome and
- Rome U., Tor Vergata
)
,
G. Salme
(
- Rome, ISS
)
,
S. Simula
(
- Rome, ISS
)

Sep, 1995

14 pages

Published in:

Phys.Lett.B 371 (1996) 7-13

e-Print:

nucl-th/9509033 [nucl-th]

DOI:

10.1016/0370-2693(95)01612-0

Report number:

INFN-ISS-95-12

View in:

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Abstract:

A parameter-free evaluation of the

N - \Delta

electromagnetic transition form factors is carried out in a light-front constituent quark model, based on nucleon and

\Delta

eigenstates of a mass operator which reproduces a large set of hadron energy levels. A one-body electromagnetic current, including the constituent quark form factors previously determined within the same approach from nucleon and pion experimental data, is used. Our prediction for the magnetic transition form factor is compared with the results both of phenomenological analyses of experimental data for the

\Delta

electroproduction, and of an analysis which includes the effects of off-energy-shell

\pi - N

final state interaction.

transition: Delta(1232) nucleon
form factor: transition
transition: form factor
quark: form factor
form factor: quark
model: light front
current: electromagnetic
energy levels
baryon: wave function
Hamiltonian formalism

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Figures(0)

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