Correlations of πN partial waves for multireaction analyses

doi:10.1103/PhysRevC.93.065205

Abstract

In the search for missing baryonic resonances, many analyses include data from a variety of pion- and photon-induced reactions. For elastic πN scattering, however, usually the partial waves of the SAID (Scattering Analysis Interactive Database) or other groups are fitted, instead of data. We provide the partial-wave covariance matrices needed to perform correlated χ ² fits, in which the obtained χ ² equals the actual χ ² up to nonlinear and normalization corrections. For any analysis relying on partial waves extracted from elastic pion scattering, this is a prerequisite to assess the significance of resonance signals and to assign any uncertainty on results. Lastly, the influence of systematic errors is also considered.

Correlations of $π N$ partial waves for multireaction analyses

Döring, M. ; Revier, J. ; Rönchen, D. ; ... June 2016 - Physical Review C
Cited by 4
DOI: 10.1103/PhysRevC.93.065205
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Ablikim, M. ; Achasov, M. N. ; Ahmed, S. ; ... December 2016 - Physics Letters. Section B

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DOI: 10.1016/j.physletb.2016.12.020
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Ablikim, M. ; Achasov, M. N. ; Ahmed, S. ; ... December 2016 - Physics Letters. Section B

By analyzing 2.93 fb-1 of data taken at the ψ (3770) resonance peak with the BESIII detector, we measure the branching fractions for the hadronic decays D ⁺→Kmore »« less
Cited by 1
DOI: 10.1016/j.physletb.2016.12.020

Full Text Available
Measurements of the branching fractions for $D^{+} \to K_{S}^{0} K_{S}^{0} K^{+}$ , $K_{S}^{0} K_{S}^{0} π^{+}$ and $D^{0} \to K_{S}^{0} K_{S}^{0}$ , $K_{S}^{0} K_{S}^{0} K_{S}^{0}$

Ablikim, M. ; Achasov, M. N. ; Ahmed, S. ; ... December 2016 - Physics Letters. Section B

By analyzing 2.93 fb-1 of data taken at the ψ (3770) resonance peak with the BESIII detector, we measure the branching fractions for the hadronic decays D ⁺→Kmore »« less
Cited by 1
DOI: 10.1016/j.physletb.2016.12.020

Full Text Available
Cross sections for the reactions $e^{+} e^{-} \to K_{S}^{0} K_{L}^{0} π^{0}$ , $K_{S}^{0} K_{L}^{0} η$ , and $K_{S}^{0} K_{L}^{0} π^{0} π^{0}$ from events with initial-state radiation

Lees, J. P. ; Poireau, V. ; Tisserand, V. ; ... March 2017 - Physical Review D
Cited by 2
DOI: 10.1103/PhysRevD.95.052001

Title: Correlations of $π N$ partial waves for multireaction analyses

Abstract

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