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Article overview
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Diffractive dissociation into $K_sK^{pm}pi^{mp}pi^{-}$ final states | Johannes Bernhard
; Frank Nerling
; | Date: |
1 Sep 2011 | Abstract: | The COMPASS fixed-target experiment at CERN/SPS is dedicated to the study of
hadron structure and spectroscopy, especially the search for spin-exotic
states. After having started to study the existence of the spin-exotic
$pi_1(1600)$ resonance in the 2004 pilot-run data, the new 2008/09 data will
enable us to further clarify the situation. Apart from the $pi_1(1600)$
resonance, also a spin-exotic $pi_1(2000)$ was reported in the past in the
$f_1(1285)pi$ decay channel by the E852/BNL experiment, however, this state
still lacks confirmation. We present a first event selection of the
diffractively produced $(Kar{K}pipi)^{-}$ system showing clean $f_1(1285)$
and $f_1(1420)$ resonances at competing statistics. A partial-wave analysis
started on $f_1(1285)pi$ and $f_1(1420)pi$ decay channels will further
complete the search for spin-exotics in the 2008/09 COMPASS data. | Source: | arXiv, 1109.0219 | Services: | Forum | Review | PDF | Favorites |
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