Scalar Mesons in $\pi \pi$ and $K \pi$ Scattering

Lohse, D.; Durso, J.W.; Holinde, K.; Speth, J.

doi:10.1016/0370-2693(90)91920-7

Scalar Mesons in $\pi \pi$ and $K \pi$ Scattering

D. Lohse
(
- Julich, Forschungszentrum
)
,
J.W. Durso
(
- Julich, Forschungszentrum
)
,
K. Holinde
(
- Julich, Forschungszentrum
)
,
J. Speth
(
- Julich, Forschungszentrum
)

1990

8 pages

Published in:

Phys.Lett.B 234 (1990) 235-242

Published: 1990

DOI:

10.1016/0370-2693(90)91920-7

reference search74 citations

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Abstract: (Elsevier)

We analyze the s-wave phase shifts derived from ππ and Kπ scattering data with a meson exchange model that includes both s - and t -channel exchange. Correlated ππ, K K , and Kπ pairs play a crucial role in explaining the phase shifts and the elasticity parameter below 1 GeV. Genuine scalar mesons are necessary to fit the s-wave phases in the I =0 ππ channel in the I= 1 2 K π channel for energies beyond 1 GeV.

pi pi: elastic scattering
pi K: elastic scattering
scalar meson: exchange
partial wave
pi pi: interaction
K: pair production

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