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All Journal Jurnal Matematika & Sains Spektra: Jurnal Fisika dan Aplikasinya Makara Journal of Science
Terry Mart
Department Of Physics, Faculty Of Mathematics And Natural Sciences University Of Indonesia
Aerospace Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mathematics Physics

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Journal : Makara Journal of Science

 1 
Extraction of the Proton Charge Radius from Experiments Kelkar, Neelima Govind; Mart, Terry; Nowakowski, Marek
Makara Journal of Science Vol. 20, No. 3
Publisher : UI Scholars Hub

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Abstract

The static properties of hadrons, such as their radii and other moments of the electric and magnetic distributions, can only be extracted using theoretical methods and cannot be directly measured from experiments. As a result, discrepancies between the extracted values from different precision measurements can exist. The proton charge radius, rp, which is extracted either from electron-proton (e-p) elastic scattering data or from hydrogen atom spectroscopy, seems to be no exception. The value rp = 0.84087(39) fm extracted from muonic hydrogen spectroscopy is about 4% smaller than that obtained from e-p scattering or standard hydrogen spectroscopy. The resolution of this so-called proton radius puzzle has been attempted in many different ways over the past six years. The present article reviews these attempts with a focus on the methods of extracting the radius.
MODEL-INDEPENDENT EXTRACTION OF THE KΛp COUPLING CONSTANT Mart, Terry
Makara Journal of Science Vol. 12, No. 2
Publisher : UI Scholars Hub

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Abstract

We have extracted the kaon-hyperon-nucleon coupling constant by means of a model-independent method and recent experimental data on kaon photoproduction off a nucleon. The extracted coupling constant is consistent with the SU(3) prediction as well as with the values obtained from the kaon-nucleon scattering process.
Co-Authors Azzi, Akbar Kelkar, Neelima Govind Marek Nowakowski Neelima Govind Kelkar Nowakowski, Marek Supriyanto Ardjo Pawiro