This title appears in the Scientific Report :
2002
Please use the identifier:
http://hdl.handle.net/2128/1671 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevC.66.044006 in citations.
Pseudovector vs pseudoscalar coupling in one-boson exchange NN potentials
Pseudovector vs pseudoscalar coupling in one-boson exchange NN potentials
We examine the effects of pseudoscalar and pseudovector coupling of the pi and eta mesons in one-boson exchange models of the NN interaction using two approaches: time-ordered perturbation theory unitarized with the relativistic Lippmann-Schwinger equation, and a reduced Bethe-Salpeter approach usin...
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Personal Name(s): | Caia, G. |
---|---|
Durso, J. / Elster, C. / Haidenbauer, J. / Sibirtsev, A. / Speth, J. | |
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-TH |
Published in: | Physical Review C Physical review / C, 66 66 (2002 2002) 4 4, S. 044006 044006 |
Imprint: |
Woodbury, NY
Inst.
2002
2002-10-25 2002-10-01 |
Physical Description: |
044006-1 - 044006-11 |
DOI: |
10.1103/PhysRevC.66.044006 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
Physical Review C
66 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevC.66.044006 in citations.
We examine the effects of pseudoscalar and pseudovector coupling of the pi and eta mesons in one-boson exchange models of the NN interaction using two approaches: time-ordered perturbation theory unitarized with the relativistic Lippmann-Schwinger equation, and a reduced Bethe-Salpeter approach using the Thompson equation. Contact terms in the one-boson exchange amplitudes in time-ordered perturbation theory lead naturally to the introduction of s-channel nucleonic cutoffs for the interaction, which strongly suppresses the far off-shell behavior of the amplitudes in both approaches. Differences between the resulting NN predictions of the various models are found to be small, and particularly so when coupling constants of the other mesons are readjusted within reasonable limits. |