Roper resonance and πN phase shift in the Skyrme model with defect

G. E. Brown; H. Q. Song; R. K. Su; K. F. Liu

doi:10.1016/0375-9474(86)90187-9

Roper resonance and πN phase shift in the Skyrme model with defect

G. E. Brown, H. Q. Song, R. K. Su, K. F. Liu

Physics And Astronomy

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3 Scopus citations

Abstract

The quantum fluctuations of the two-phase Skyrme soliton model of the nucleon is formulated. The p-wave πN phase shift and the Roper to πN decay width are calculated as a function of the equlibrium defect radius R₀. It is found that there is a preferred region of R₀ between 0.4 and 0.5 fm where the experimental width can be fitted. It is also found that the region of R₀ between 0.1 and 0.36 fm should be excluded in the model due to its instability against small oscillations.

Original language	English
Pages (from-to)	573-582
Number of pages	10
Journal	Nuclear Physics, Section A
Volume	458
Issue number	4
DOIs	https://doi.org/10.1016/0375-9474(86)90187-9
State	Published - Oct 20 1986

Bibliographical note

Funding Information:
and DOE grant No.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(86)90187-9

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title = "Roper resonance and πN phase shift in the Skyrme model with defect",

abstract = "The quantum fluctuations of the two-phase Skyrme soliton model of the nucleon is formulated. The p-wave πN phase shift and the Roper to πN decay width are calculated as a function of the equlibrium defect radius R0. It is found that there is a preferred region of R0 between 0.4 and 0.5 fm where the experimental width can be fitted. It is also found that the region of R0 between 0.1 and 0.36 fm should be excluded in the model due to its instability against small oscillations.",

author = "Brown, {G. E.} and Song, {H. Q.} and Su, {R. K.} and Liu, {K. F.}",

note = "Funding Information: and DOE grant No.",

year = "1986",

month = oct,

day = "20",

doi = "10.1016/0375-9474(86)90187-9",

language = "English",

volume = "458",

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T1 - Roper resonance and πN phase shift in the Skyrme model with defect

AU - Brown, G. E.

AU - Song, H. Q.

AU - Su, R. K.

AU - Liu, K. F.

N1 - Funding Information: and DOE grant No.

PY - 1986/10/20

Y1 - 1986/10/20

N2 - The quantum fluctuations of the two-phase Skyrme soliton model of the nucleon is formulated. The p-wave πN phase shift and the Roper to πN decay width are calculated as a function of the equlibrium defect radius R0. It is found that there is a preferred region of R0 between 0.4 and 0.5 fm where the experimental width can be fitted. It is also found that the region of R0 between 0.1 and 0.36 fm should be excluded in the model due to its instability against small oscillations.

AB - The quantum fluctuations of the two-phase Skyrme soliton model of the nucleon is formulated. The p-wave πN phase shift and the Roper to πN decay width are calculated as a function of the equlibrium defect radius R0. It is found that there is a preferred region of R0 between 0.4 and 0.5 fm where the experimental width can be fitted. It is also found that the region of R0 between 0.1 and 0.36 fm should be excluded in the model due to its instability against small oscillations.

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UR - http://www.scopus.com/inward/citedby.url?scp=0011564357&partnerID=8YFLogxK

U2 - 10.1016/0375-9474(86)90187-9

DO - 10.1016/0375-9474(86)90187-9

M3 - Article

AN - SCOPUS:0011564357

VL - 458

SP - 573

EP - 582

IS - 4

ER -

Roper resonance and πN phase shift in the Skyrme model with defect

Abstract

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