Two-pion exchange contributions to the relativistic NN kernel: Peripheral scattering

Journal Article · Mon Jan 15 00:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.014006· OSTI ID:20990937

Cozma, M D; Scholten, O; Timmermans, R G. E.; Tjon, J A ^[1]

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1. Institut fuer Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

The relativistic one-boson-exchange model for NN scattering is extended by including two-pion exchange (TPE) contributions in the kernel. We develop the formalism for the evaluation of the TPE diagrams within the relativistic quasipotential approach. The peripheral partial waves in elastic NN scattering are studied within this model. The TPE interactions contain a strongly attractive isoscalar-scalar component which requires a low value of the cutoff parameter: {lambda}=650-800 MeV. With this prescription, the peripheral waves can be reasonably described.

• OSTI ID: 20990937
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 75, Issue 1; Other Information: DOI: 10.1103/PhysRevC.75.014006; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DIAGRAMS
KERNELS
MEV RANGE 100-1000
OBE MODEL
PARTIAL WAVES
PIONS
RELATIVISTIC RANGE
SCATTERING