TY  - JOUR
AU  - Lemmer, R. H.
TI  - Extraction of the K K¯ isovector scattering length from pp -> d K+ K¯0 data near threshold
JO  - Physics letters / B
VL  - 633
SN  - 0370-2693
CY  - Amsterdam
PB  - North-Holland Publ.
M1  - PreJuSER-57872
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - The results of a recent experiment measuring the reaction pp -> dK(+)K(0) near threshold are interpreted in terms of a spectator model that encapsulates the main features of the observed (K+K0) invariant mass distribution. A X 2 fit to this data leads to an imaginary part of the isovector scattering length in the KK channel of Im(a(1)) = -(0.63 +/- 0.24) fm. We then use the Flatte representation of the scattering amplitude to infer a value Re(a I) = - (0.02 +/- 0.02) fm for the real part under the assumption that scaling [V Baru, J. Haidenbauer, C. Hanhart, A. Kudryavtsev, U.G. Meissner, Eur. Phys. J. A 23 (2005) 523] is approximately satisfied. We show further that it is not possible to exclude the effects of pi(+)eta to (K+K0) channel coupling within the context of our model. (c) 2005 Elsevier B.V. All rights reserved.
KW  - p p: exclusive reaction (INSPIRE)
KW  - K: pair production (INSPIRE)
KW  - threshold (INSPIRE)
KW  - deuteron: spectator (INSPIRE)
KW  - scattering amplitude (INSPIRE)
KW  - a0(980) (INSPIRE)
KW  - K anti-K: scattering length (INSPIRE)
KW  - isovector (INSPIRE)
KW  - parametrization (INSPIRE)
KW  - channel cross section: mass (INSPIRE)
KW  - numerical calculations (INSPIRE)
KW  - interpretation of experiments: Juelich COSY PS (INSPIRE)
KW  - p p --> deuteron anti-K0 K+ (INSPIRE)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000235098500021
DO  - DOI:10.1016/j.physletb.2005.11.074
UR  - https://juser.fz-juelich.de/record/57872
ER  -