Status of isospin splittings in mesons and baryons

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 $M(K^{\ast \pm })$, $M(B^{\ast 0})-M(B^0)$, and isospin splittings in bottom baryons is noted.

17 pages, no figures. Updated data and references

References in corpus (17)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Ab initio calculation of the neutron-proton mass difference
• Baryons with two heavy quarks: Masses, production, decays, and detection
• $QQ\bar{Q}\bar{Q}$ states: masses, production, and decays
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• Precision measurement of the mass and lifetime of the ${\Xi }_b^0$ baryon
• Isospin splittings of doubly heavy baryons
• Isospin splittings in baryons with two heavy quarks
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• Isospin mass splittings of heavy baryons in HQS
• Mass splittings within heavy baryon isospin multiplets in chiral perturbation theory
• Strong and Electromagnetic Mass Splittings in Heavy Mesons
• Estimates of isospin breaking contributions to baryon masses
• Measurement of the $D^{\ast }(2010{)}^{+}-D^{+}$ mass difference
• A parametrization of the baryon octet and decuplet masses
• Isospin Mass Differences of Heavy Baryons

Cited by in corpus (10)

• Study of the doubly charmed tetraquark $T_{cc}^{+}$
• Doubly Heavy Tetraquarks in the Born-Oppenheimer approximation
• Isospin mass differences of singly heavy baryons
• Screening of quark charge and mixing effects on transition moments and M1 decay widths of baryons
• Measurement of the Masses and Widths of the ${\Sigma }_c(2455{)}^{+}$ and ${\Sigma }_c(2520{)}^{+}$ Baryons
• Mass inequalities for baryons with heavy quarks
• LHCb gets closer to discovering the second doubly charmed baryon
• First exclusive reconstruction of the B${}^{\ast +}$, B${}^{\ast 0}$, and B${}_{\text{s}}^{\ast 0}$ mesons and precise measurement of their masses
• Precision Measurement of $D_s^{\ast +}$-$D_s^{+}$ Mass Difference
• Heavy-quark exotics