[pi][rho] scattering and the [pi][ital NN] form factor

Journal Article · Mon Sep 27 04:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.1978· OSTI ID:6074827

Janssen, G; Durso, J W; Holinde, K; Pearce, B C; Speth, J ^[1]

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1. Institut fuer Kernphysik, Forschungszentrum Juelich GmbH, D-52425 Juelich (Germany)

We investigate [pi][rho] scattering in the pseudoscalar ([pi]) and axial-vector ([ital A][sub 1]) channel. Our model based on [ital s]- as well as [ital t]-channel meson exchange can resolve apparent discrepancies occurring in the analysis of the axial-vector [ital A][sub 1] meson. Furthermore, it leads to an appreciable softening of the [pi][ital NN] form factor in agreement with information from other sources. This strong contribution in the pionic channel substantiates earlier claims that inclusion of correlated [pi][rho] exchange might allow the use of a soft [pi][ital NN] form factor in [ital NN] potential models and thus could resolve a long-standing puzzle.

• OSTI ID: 6074827
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:13; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

662340 -- Hadron Interactions-- (1992-)
663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALGEBRAIC CURRENTS
AXIAL-VECTOR CURRENTS
BARYONS
BOSONS
CHARGED-PARTICLE REACTIONS
CURRENTS
ELEMENTARY PARTICLES
FERMIONS
FORM FACTORS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MESON REACTIONS
MESON-BARYON INTERACTIONS
MESONS
NUCLEAR REACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PION REACTIONS
PIONS
PSEUDOSCALAR MESONS
PSEUDOSCALARS
S CHANNEL
T CHANNEL
VECTOR MESONS