This title appears in the Scientific Report :
2007
Please use the identifier:
http://dx.doi.org/10.1140/epja/i2007-10467-5 in citations.
Meson exchange hyperon-nucleon interaction based on correlated pi pi/K(K)over-bar exchange
Meson exchange hyperon-nucleon interaction based on correlated pi pi/K(K)over-bar exchange
We present a new model for the hyperon-nucleon (Lambda N , Sigma N interaction, derived within the meson exchange framework. The model incorporates the standard one-boson exchanges of the lowest pseudoscalar and vector meson multiplets with coupling constants fixed by SU(6) flavor symmetry relations...
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Personal Name(s): | Haidenbauer, J. |
---|---|
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-3 |
Published in: | The @European physical journal / A, 33 (2007) S. 287 - 290 |
Imprint: |
Berlin
Springer
2007
|
Physical Description: |
287 - 290 |
DOI: |
10.1140/epja/i2007-10467-5 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen und Kerne |
Series Title: |
European Physical Journal A
33 |
Subject (ZB): | |
Publikationsportal JuSER |
We present a new model for the hyperon-nucleon (Lambda N , Sigma N interaction, derived within the meson exchange framework. The model incorporates the standard one-boson exchanges of the lowest pseudoscalar and vector meson multiplets with coupling constants fixed by SU(6) flavor symmetry relations. As a new feature, the contribution in the scalar-isoscalar (sigma sector is derived from a microscopic model of correlated pi pi and K (K) over bar exchange. The same model is also used to constrain the interaction resulting from the vector-isovector (rho exchange channel. Additional short-ranged ingredients of the model in the scalar-isovector (a(0)) and scalar-isospin-1/2 (kappa channels are likewise viewed as arising from meson-meson correlations but are treated phenomenologically. With this model a satisfactory reproduction of the available hyperon-nucleon data is achieved. |