Electromagnetic mass differences of N and Δ in the Skyrme model

Bing An Li; Mu Lin Yan; Keh Fei Liu

doi:10.1016/0370-2693(86)90779-3

Electromagnetic mass differences of N and Δ in the Skyrme model

Bing An Li
, Mu Lin Yan
, Keh Fei Liu

Physics And Astronomy

Producción científica: Article › revisión exhaustiva

10 Citas (Scopus)

Resumen

The electromagnetic mass differences of p, n and Δ⁺⁺, Δ⁺, Δ⁰, Δ^- are evaluated in the Skyrme model. In order to explain the observed proton-neutron mass difference, a new term which corresponds to the down-up quark mass difference has to be introduced. With M_p = M_n as an input which requires m_d-m_u = 2 MeV, we predict the mass differences M_Δ⁺⁺-M_Δ⁺, M_Δ⁺-M_Δ⁰ and M_Δ⁰-M_Δ^-.

Idioma original	English
Páginas (desde-hasta)	409-412
Número de páginas	4
Publicación	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen	177
N.º	3-4
DOI	https://doi.org/10.1016/0370-2693(86)90779-3
Estado	Published - sept 18 1986

Financiación

This work is supported in part by the DOE grant No. DE-FG05-84ER40154 and DOE contract No. DE-AC02-76ER13001. One of us (B.A.L.) would like to acknowledge the hospitality of Professor C.N. Yang and K.F. Liu would like to acknowledge the hospitality received while visiting the Physics Department in SUNY/Stony Brook.

Financiadores	Número del financiador
U.S. Department of Energy	DE-FG05-84ER40154

ASJC Scopus subject areas

Nuclear and High Energy Physics

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abstract = "The electromagnetic mass differences of p, n and Δ++, Δ+, Δ0, Δ- are evaluated in the Skyrme model. In order to explain the observed proton-neutron mass difference, a new term which corresponds to the down-up quark mass difference has to be introduced. With Mp = Mn as an input which requires md-mu = 2 MeV, we predict the mass differences MΔ++-MΔ+, MΔ+-MΔ0 and MΔ0-MΔ-.",

author = "Li, \{Bing An\} and Yan, \{Mu Lin\} and Liu, \{Keh Fei\}",

year = "1986",

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T1 - Electromagnetic mass differences of N and Δ in the Skyrme model

AU - Li, Bing An

AU - Yan, Mu Lin

AU - Liu, Keh Fei

PY - 1986/9/18

Y1 - 1986/9/18

N2 - The electromagnetic mass differences of p, n and Δ++, Δ+, Δ0, Δ- are evaluated in the Skyrme model. In order to explain the observed proton-neutron mass difference, a new term which corresponds to the down-up quark mass difference has to be introduced. With Mp = Mn as an input which requires md-mu = 2 MeV, we predict the mass differences MΔ++-MΔ+, MΔ+-MΔ0 and MΔ0-MΔ-.

AB - The electromagnetic mass differences of p, n and Δ++, Δ+, Δ0, Δ- are evaluated in the Skyrme model. In order to explain the observed proton-neutron mass difference, a new term which corresponds to the down-up quark mass difference has to be introduced. With Mp = Mn as an input which requires md-mu = 2 MeV, we predict the mass differences MΔ++-MΔ+, MΔ+-MΔ0 and MΔ0-MΔ-.

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ER -

Electromagnetic mass differences of N and Δ in the Skyrme model

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