2015

Model selection for amplitude analysis

Guegan, Baptiste, Hardin, John, Stevens, Justin et al.

Understand

Model complexity in amplitude analyses is often a priori under-constrained since the underlying theory permits a large number of possible amplitudes to contribute to most physical processes.

  • The use of an overly complex model results in reduced predictive power and worse resolution on unknown parameters of interest.
  • Therefore, it is common to reduce the complexity by removing from consideration some subset of the allowed amplitudes.
  • This paper studies a method for limiting model complexity from the data sample itself through regularization during regression in the context of a multivariate (Dalitz-plot) analysis.

Built on

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    1938

    Earlier work this paper cites.

  • J. Blatt and V. E. Weisskopf, Theoretical Nuclear Physics

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  • C. Zemach, Three pion decays of unstable particles,

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  • H. Akaike, A new look at the statistical model identification

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Similar

  • G. Schwarz , Estimating the dimension of a model

    1978

    Cited alongside, same era.

  • B. Efron and R.J. Tibshirani, An Introduction to the Bootstrap

    1993

    Cited alongside, same era.

  • R. Tibshirani, Regression shrinkage and selection via the lasso

    1996

    Cited alongside, same era.

  • F. Harrel, Regression Modeling Strategies

    2001

    Cited alongside, same era.

Then

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