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Status of isospin splittings in mesons and baryons

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arxiv 1906.07799 v2 pith:PSR3XKZ6 submitted 2019-06-18 hep-ph hep-ex

classification hep-phhep-ex
keywords baryonsisospinmeasurementssplittingsmesonssomeallowbetter
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abstract

Current measurements of isospin splittings in mesons and baryons are sufficiently precise that they allow estimates of the mass difference between constituent up and down quarks. Some previous results are updated in the light of these new measurements, and the importance of better measurements of some observables such as $M(K^{*\pm})$, $M(B^{*0})-M(B^0)$, and isospin splittings in bottom baryons is noted.

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Cited by 1 Pith paper

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  1. Relativistic effects in $\mbox{M1}$ radiative decays of heavy-light mesons

    hep-ph 2025-07 conditional novelty 5.0 of 10

    A relativistic potential model, with all parameters taken from meson masses, predicts M1 radiative widths for D and D_s mesons and gives a B_s hyperfine splitting close to the new CMS measurement.

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