The isospin breaking effect on baryons with Nf=2 domain wall fermions

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dc.creatorDoi, Takumi
dc.creatorBlum, Thomas
dc.creatorHayakawa, Masashi
dc.creatorIzubuchi, Taku
dc.creatorYamada, Norikazu
dc.date2006-10-17
dc.date.accessioned2026-07-07T10:41:28Z
dc.date.available2026-07-07T10:41:28Z
dc.descriptionWe study the isospin breaking effect on octet baryons. Using the two-flavor dynamical domain-wall QCD configurations combined with the quenched non-compact QED configurations, the electromagnetic mass splittings between isomultiplets (p, n), (Sigma^+, Sigma^0, Sigma^-), (Xi^0, Xi^-) are investigated. We evaluate the main source of statistical fluctuations in the two-point correlation function, and find that the elimination of O(e) fluctuation (e: the QED charge) is essential to extract the signal. Preliminary results for $m_p - m_n$ as well as other mass splittings are presented. Possible origin of systematic uncertainty is also discussed.
dc.descriptionTalk given at 24th International Symposium on Lattice Field Theory (LATTICE 2006), Tucson, Arizona, USA, 23-28 Jul. 2006 (Hadron Spectroscopy), 7pages, 4figures
dc.identifierhttps://arxiv.org/abs/hep-lat/0610095
dc.identifierhttp://arxiv.org/abs/hep-lat/0610095
dc.identifierPoSLAT2006:174,2006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/181631
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleThe isospin breaking effect on baryons with Nf=2 domain wall fermions
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