Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering length

Charge independence breaking (CIB) in the pion-nucleon coupling constant and the nucleon-nucleon scattering length is considered on the basis of the Yukawa meson theory. CIB effect in these quantities is almost entirely explained by the mass difference between the charged and the neutral pions. Ther...

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Main Authors: V. A. Babenko, N. M. Petrov
Format: Article
Language:English
Published: Institute for Nuclear Research, National Academy of Sciences of Ukraine 2016-08-01
Series:Âderna Fìzika ta Energetika
Subjects:
Online Access:http://jnpae.kinr.kiev.ua/17.2/html/17.2.0143.html
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author V. A. Babenko
N. M. Petrov
author_facet V. A. Babenko
N. M. Petrov
author_sort V. A. Babenko
collection DOAJ
description Charge independence breaking (CIB) in the pion-nucleon coupling constant and the nucleon-nucleon scattering length is considered on the basis of the Yukawa meson theory. CIB effect in these quantities is almost entirely explained by the mass difference between the charged and the neutral pions. Therewith charge splitting of the pion-nucleon coupling constant is almost the same as charge splitting of the pion mass. Calculated difference between the proton-proton and the neutron-proton scattering length in this case comprises ∼90% of the experimental value.
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spelling doaj.art-a619678179f9400cb47ed5fb34aba45f2022-12-22T01:59:52ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineÂderna Fìzika ta Energetika1818-331X2074-05652016-08-01172143149Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering lengthV. A. Babenko0N. M. Petrov1M. M. Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine M. M. Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine Charge independence breaking (CIB) in the pion-nucleon coupling constant and the nucleon-nucleon scattering length is considered on the basis of the Yukawa meson theory. CIB effect in these quantities is almost entirely explained by the mass difference between the charged and the neutral pions. Therewith charge splitting of the pion-nucleon coupling constant is almost the same as charge splitting of the pion mass. Calculated difference between the proton-proton and the neutron-proton scattering length in this case comprises ∼90% of the experimental value.http://jnpae.kinr.kiev.ua/17.2/html/17.2.0143.htmlcharge independencepion-nucleon coupling constantnucleon-nucleon scatteringpion.pion
spellingShingle V. A. Babenko
N. M. Petrov
Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering length
Âderna Fìzika ta Energetika
charge independence
pion-nucleon coupling constant
nucleon-nucleon scattering
pion.
pion
title Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering length
title_full Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering length
title_fullStr Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering length
title_full_unstemmed Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering length
title_short Isospin breaking in the pion-nucleon coupling constant and the nucleon-nucleon scattering length
title_sort isospin breaking in the pion nucleon coupling constant and the nucleon nucleon scattering length
topic charge independence
pion-nucleon coupling constant
nucleon-nucleon scattering
pion.
pion
url http://jnpae.kinr.kiev.ua/17.2/html/17.2.0143.html
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