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Article overview
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$eta$ MAID-2015: update with new data and new resonances | | V.L. Kashevarov
; L. Tiator
; M. Ostrick
; | | Date: |
18 Feb 2016 | | Abstract: | Recent data for $eta$ and $etaprime$ photoproduction on protons obtained
by the A2 Collaboration at MAMI are presented. The total cross section for
$eta$ photoproduction demonstrates a cusp at the energy corresponding to the
$etaprime$ threshold. The new data and existing data from GRAAL, CBELSA/TAPS,
and CLAS collaborations have been analyzed by an expansion in terms of
associated Legendre polynomials. %A Legendre decomposition shows the
sensitivity to small partial-wave contributions. The isobar model $eta$MAID
updated with $eta prime$ channel and new resonances have been used to fit the
new data. The new solution $eta$MAID-2015 reasonably good describes the data
in the photon beam energy region up to 3.7 GeV. | | Source: | arXiv, 1602.5820 | | Services: | Forum | Review | PDF | Favorites | |
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