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Covariance Matrix for Helicity Couplings

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Abstract

The helicity couplings at \(Q^2=0\) for excited baryonic states have been determined in the past, but no information is available regarding their correlations that are relevant for comparison to theory. We present here our calculation of such correlations between the helicity couplings. They contain information for quantitative comparisons with theoretical values, they can be used to quantify the impact of polarization observables, and can help design new experiments.

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Acknowledgements

This work is supported by the National Science Foundation (CAREER grant PHY-1452055, NSF/PIF grant No. 1415459), and by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract DE-AC05-06OR23177 and grant No. DE-SC001658.

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Authors and Affiliations

  1. The George Washington University, 725 21st ST, NW, Washington, DC, 20052, USA

    D. Sadasivan & M. Döring

  2. Thomas Jefferson National Accelerator Facility, 12000 Jefferson Avenue, Newport News, VA, USA

    M. Döring

Authors
  1. D. Sadasivan
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  2. M. Döring
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Corresponding author

Correspondence to D. Sadasivan.

Additional information

This article belongs to the Topical Collection “NSTAR 2017 - The International Workshop on the Physics of Excited Nucleons”.

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Sadasivan, D., Döring, M. Covariance Matrix for Helicity Couplings. Few-Body Syst 59, 47 (2018). https://doi.org/10.1007/s00601-018-1370-2

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