K N sigma terms, strangeness in the nucleon, and DAPHNE

Gensini, Paolo M.

K N sigma terms, strangeness in the nucleon, and DAPHNE

Paolo M. Gensini
(
- Perugia U. and
- INFN, Perugia
)

Apr, 1998

18 pages

Contribution to:

e-Print:

hep-ph/9804344 [hep-ph]

Report number:

DFUPG-98-GEN-02

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Abstract:

Expanded and updated version of a talk originally presented at ``IVth Int. Symp. on Pion--Nucleon Physics and the Structure of the Nucleon'', Bad Honnef, 9--13 September 1991, originally published in

\pi N

Newletter 6 (1992) 21--32. Table of contents: 1. Introduction. 2.

\sigma

--terms and ``measurements'' of the strange--quark scalar density of the nucleon. 3. Methods of extrapolation to

q^2 = t = \omega^2 = 0

: a subjective review: 3.1. The ``improved'' Altarelli--Cabibbo--Maiani method. 3.2. The Fubini--Furlan analysis of meson-nucleus scattering lengths. 3.2. The ``unitarized'' version of the Cheng--Dashen theorem. 4. Capabilities for a

\bar{K}N

--scattering experiment at DA

\Phi

NE. 5. ``Envoi''.

Note:

Expanded and updated version of a talk originally presented at the 4th International Symposium on Pion-Nucleon Physics and the Structure of the Nucleon, Bad Honnef, 9-13 Sep 1991, published in piN Newsletter 6:21-32,1992

talk: Frascati 1998/04/14
K nucleon: sigma term
nucleon: model
quark: strangeness
pi nucleon: sigma term
pi nucleon: scattering amplitude
K nucleon: scattering amplitude
Phi(1020): particle source
Phi(1020): hadronic decay
K: pair production

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