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26 April 2024

» arxiv » nucl-ex/0103001

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Near Threshold K+K- Meson-Pair Production in Proton-Proton Collisions
C. Quentmeier ; H.-H. Adam ; J. T. Balewski ; A. Budzanowski ; D. Grzonka ; L. Jarczyk ; A. Khoukaz ; K. Kilian ; P. Kowina ; N. Lang ; T.Lister ; P. Moskal ; W. Oelert ; R. Santo ; G. Schepers ; T. Sefzick ; S. Sewerin ; M. Siemaszko ; J. Smyrski ; A. Strzalkowski ; M. Wolke ; P. Wuestner ; W. Zipper ;
Date:	1 Mar 2001
Journal:	Phys.Lett. B515 (2001) 276-282
Subject:	nucl-ex
Abstract:	The near threshold total cross section and angular distributions of K+K- pair production via the reaction pp --> ppK+K- have been studied at an excess energy of Q = 17 MeV using the COSY-11 facility at the cooler synchrotron COSY. The obtained cross section as well as an upper limit at an excess energy of Q = 3 MeV represent the first measurements on the K+K- production in the region of small excess energies where production via the channel pp --> pp Phi --> ppK+K- is energetically forbidden. The possible influence of a resonant production via intermediate scalar states f0(980) and a0(980) is discussed.
Source:	arXiv, nucl-ex/0103001
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