Determination of the Strange Nucleon Form Factors

CSSM QCDSF UKQCD Collaborations; P. E. Shanahan; R. Horsley; Y. Nakamura; D. Pleiter; P. E. L. Rakow; G. Schierholz; H. Stueben; A. W. Thomas; R. D. Young; J. M. Zanotti

doi:10.1103/PhysRevLett.114.091802

Determination of the Strange Nucleon Form Factors

CSSM QCDSF UKQCD Collaborations, P. E. Shanahan^*, R. Horsley, Y. Nakamura, D. Pleiter, P. E. L. Rakow, G. Schierholz, H. Stueben, A. W. Thomas, R. D. Young, J. M. Zanotti

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The strange contribution to the electric and magnetic form factors of the nucleon is determined at a range of discrete values of Q(2) up to 1.4 GeV2. This is done by combining a recent analysis of lattice QCD results for the electromagnetic form factors of the octet baryons with experimental determinations of those quantities. The most precise result is a small negative value for the strange magnetic moment: G(M)(S) (Q(2) = 0) = -0.07 +/- 0.03 mu(N). At larger values of Q(2) both the electric and magnetic form factors are consistent with zero to within 2 standard deviations.

Original language	English
Article number	091802
Number of pages	5
Journal	Physical Review Letters
Volume	114
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.114.091802
Publication status	Published - 3 Mar 2015

Keywords / Materials (for Non-textual outputs)

MAGNETIC-MOMENT
RADIUS
VECTOR
MODEL
QCD

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10.1103/PhysRevLett.114.091802

Particle Theory at the Higgs Centre
Ball, R., Berera, A., Boyle, P., Callison-Burch, C., Del Debbio, L., Gardi, E., Kennedy, A., O'Connell, D., Zwicky, R., Berera, A., Boyle, P., Buckley, A., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., Kenway, R., O'Connell, D., Smillie, J. & Zwicky, R.
STFC
1/10/14 → 30/09/18
Project: Research

Cite this

@article{33984090cc79463d83ffb456a5b2398a,

title = "Determination of the Strange Nucleon Form Factors",

abstract = "The strange contribution to the electric and magnetic form factors of the nucleon is determined at a range of discrete values of Q(2) up to 1.4 GeV2. This is done by combining a recent analysis of lattice QCD results for the electromagnetic form factors of the octet baryons with experimental determinations of those quantities. The most precise result is a small negative value for the strange magnetic moment: G(M)(S) (Q(2) = 0) = -0.07 +/- 0.03 mu(N). At larger values of Q(2) both the electric and magnetic form factors are consistent with zero to within 2 standard deviations.",

keywords = "MAGNETIC-MOMENT, RADIUS, VECTOR, MODEL, QCD",

author = "{CSSM QCDSF UKQCD Collaborations} and Shanahan, {P. E.} and R. Horsley and Y. Nakamura and D. Pleiter and Rakow, {P. E. L.} and G. Schierholz and H. Stueben and Thomas, {A. W.} and Young, {R. D.} and Zanotti, {J. M.}",

year = "2015",

month = mar,

day = "3",

doi = "10.1103/PhysRevLett.114.091802",

language = "English",

volume = "114",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Determination of the Strange Nucleon Form Factors

AU - CSSM QCDSF UKQCD Collaborations

AU - Shanahan, P. E.

AU - Horsley, R.

AU - Nakamura, Y.

AU - Pleiter, D.

AU - Rakow, P. E. L.

AU - Schierholz, G.

AU - Stueben, H.

AU - Thomas, A. W.

AU - Young, R. D.

AU - Zanotti, J. M.

PY - 2015/3/3

Y1 - 2015/3/3

N2 - The strange contribution to the electric and magnetic form factors of the nucleon is determined at a range of discrete values of Q(2) up to 1.4 GeV2. This is done by combining a recent analysis of lattice QCD results for the electromagnetic form factors of the octet baryons with experimental determinations of those quantities. The most precise result is a small negative value for the strange magnetic moment: G(M)(S) (Q(2) = 0) = -0.07 +/- 0.03 mu(N). At larger values of Q(2) both the electric and magnetic form factors are consistent with zero to within 2 standard deviations.

AB - The strange contribution to the electric and magnetic form factors of the nucleon is determined at a range of discrete values of Q(2) up to 1.4 GeV2. This is done by combining a recent analysis of lattice QCD results for the electromagnetic form factors of the octet baryons with experimental determinations of those quantities. The most precise result is a small negative value for the strange magnetic moment: G(M)(S) (Q(2) = 0) = -0.07 +/- 0.03 mu(N). At larger values of Q(2) both the electric and magnetic form factors are consistent with zero to within 2 standard deviations.

KW - MAGNETIC-MOMENT

KW - RADIUS

KW - VECTOR

KW - MODEL

KW - QCD

U2 - 10.1103/PhysRevLett.114.091802

DO - 10.1103/PhysRevLett.114.091802

M3 - Article

SN - 0031-9007

VL - 114

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

M1 - 091802

ER -

Determination of the Strange Nucleon Form Factors

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Particle Theory at the Higgs Centre

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