pi rho scattering and the pi N N form-factor

Janssen, G.; Durso, J.W.; Holinde, K.; Pearce, B.C.; Speth, J.

doi:10.1103/PhysRevLett.71.1978

pi rho scattering and the pi N N form-factor

G. Janssen
(
- Julich, Forschungszentrum
)
,
J.W. Durso
(
- Mt. Holyoke Coll.
)
,
K. Holinde
(
- Julich, Forschungszentrum
)
,
B.C. Pearce
(
- Adelaide U.
)
,
J. Speth
(
- Julich, Forschungszentrum
)

Aug 27, 1993

16 pages

Published in:

Phys.Rev.Lett. 71 (1993) 1978-1981

DOI:

10.1103/PhysRevLett.71.1978

Report number:

KFA-IKP-TH-1993-16

View in:

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Abstract: (APS)

We investigate πρ scattering in the pseudoscalar (π) and axial-vector (A1) channel. Our model based on s- as well as t-channel meson exchange can resolve apparent discrepancies occurring in the analysis of the axial-vector A1 meson. Furthermore, it leads to an appreciable softening of the πNN form factor in agreement with information from other sources. This strong contribution in the pionic channel substantiates earlier claims that inclusion of correlated πρ exchange might allow the use of a soft πNN form factor in NN potential models and thus could resolve a long-standing puzzle.

scattering: pi rho(770)
pi rho(770): scattering
model: interaction
interaction: model
meson: exchange
exchange: meson
form factor: (2nucleon pi)
(2nucleon pi): form factor
nucleon nucleon: potential
a1(1260)

References(18)

Figures(0)

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