No abstract

A study of the strangeness production process pp~AA at threshold and intermediate energies has been performed doing a full coupled-channel (pp, AA) calculation. The elastic part of the pp and AA interactions has been derived from a one-boson-exchange version of the Bonn NN potential and a corresponding extension to the hyperon-nucleon case whereas the annihilation part is taken into account by introducing suitable optical potentials. The transition interaction between pp and AA is based on Kand K*-meson exchange. A reasonably good description of empirical cross sections as well as polarization data is achieved. It is demonstrated that the results are quite sensitive even to short-range modifications of the channel interactions. We also compare our model with other approaches and suggest a new experiment which would be able to check the very different predictions of the meson-exchange and constituent quark model, respectively.PACS number(s): 25.43.+t, 13.75.Cs, 21.30. +j

No abstract

Svml MI:iI(m L)IIIIvpl'rnul. 1l'ill" illld :ltlll l'llY11'r+ B SUBMITTED 10 1)1-i)[~kll;iv('11N;I1l(ll~ill l,iIIII~I.iI[tII.v. [ll~f till, NY, Slli)l lmlllt~r ')-.1 1, 19H'I DIS("l,AIMttR This rqmrl WM pccpnml q un nmtmn[ ur wtwli qnmwwml hv IIF u~cncy of Ihc I hmetl Slales (iovernmcnt. Ncilhcr IIW I Inikl SIulch (hwcrmwcn! nor wry u@rcy hemf, rwwmry t)f Ihcir employees, mnhcn wry wtrrunly, mprcm III wwplicrl,IW ncmmcs rrrryleRal Iinhility m rqvrmni. hilily Iiw the ucurucy, LXWWpklCHC, w ukelulrwm Ir(wry mhwmuliwn. apfvmlus, pmrlucl, or IWIKWWrlinch~l, ur rwpwrcvrta(hn(its unc would nw mfrwvp privately WWVA rir,hm, Rcfcrcrwc hcrrm III nnv qwirii mmlmmcinl prrrrlurl, pr{wcrh, or wrvlb~hy Irmk rmmc, tr~lcnmrk, mmrufmvurrtr, wr oilkrwim km mll ncvvm.mly mmnlilulc or imply iln cmlorkemerrt, mxmr. mcntlniivm, IW rworhrp hy k I Mctl Stntcn (hvcrrrmcni w WV) a~crrcy Ihvmt 'I"hc virwã nd tl~rritmn Ii HuIhrw~CXIWCA hwwr AI not rrvrcsnmwy dntr m t?l'kf ihunc uf Ihc I Initeil Smle~f Jrrvcrnnwm or any qerwy (hcrcol.

No abstract

No abstract