Measurement of strange-quark contributions to the nucleon's form factors at Q2 = 0.230 (GeV/c)2

F. E. Maas; P. Achenbach; K. Aulenbacher; S. Baunack; L. Capozza; J. Diefenbach; K. Grimm; Y. Imai; T. Hammel; D. Von Harrach; E. M. Kabuß; R. Kothe; J. H. Lee; A. Lorente; A. Lopes Ginja; L. Nungesser; E. Schilling; G. Stephan; C. Weinrich; I. Altarev; J. Arvieux; B. Collin; R. Frascaria; M. Guidal; R. Kunne; D. Marchand; M. Morlet; S. Ong; J. Van De Wiele; S. Kowalski; B. Plaster; R. Suleiman; S. Taylor

doi:10.1103/PhysRevLett.93.022002

Measurement of strange-quark contributions to the nucleon's form factors at Q² = 0.230 (GeV/c)²

F. E. Maas, P. Achenbach, K. Aulenbacher, S. Baunack, L. Capozza, J. Diefenbach, K. Grimm, Y. Imai, T. Hammel, D. Von Harrach, E. M. Kabuß, R. Kothe, J. H. Lee, A. Lorente, A. Lopes Ginja, L. Nungesser, E. Schilling, G. Stephan, C. Weinrich, I. AltarevJ. Arvieux, B. Collin, R. Frascaria, M. Guidal, R. Kunne, D. Marchand, M. Morlet, S. Ong, J. Van De Wiele, S. Kowalski, B. Plaster, R. Suleiman, S. Taylor

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

223 Scopus citations

Abstract

A measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons was performed. A new type of very fast, homogeneous, total absorption calorimeter consisting of individual lead fluoride crystals was developed to detect the scattered electrons. It was observed that the energy, helicity and impact information were stored together in a three-dimensional histogram. The measurement shows for the first time evidence for the observation of a contribution of the strange quarks to the electric vector form factor of the nucleon.

Original language	English
Article number	022002
Pages (from-to)	022002-1-022002-4
Journal	Physical Review Letters
Volume	93
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.93.022002
State	Published - Jul 9 2004

Bibliographical note

Funding Information:
This work is supported by the DFG under SFB 201, SPP 1034, by the IN2P3 of CNRS, and in part by the DOE. We are indebted to K. H. Kaiser and the MAMI crew and we thank the A1 Collaboration for the Møller polarimeter measurements.

Funding

This work is supported by the DFG under SFB 201, SPP 1034, by the IN2P3 of CNRS, and in part by the DOE. We are indebted to K. H. Kaiser and the MAMI crew and we thank the A1 Collaboration for the Møller polarimeter measurements.

Funders	Funder number
IN2P3 of CNRS
U.S. Department of Energy EPSCoR
Deutsche Forschungsgemeinschaft	SFB 201, SPP 1034

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.93.022002

Cite this

Maas, F. E., Achenbach, P., Aulenbacher, K., Baunack, S., Capozza, L., Diefenbach, J., Grimm, K., Imai, Y., Hammel, T., Von Harrach, D., Kabuß, E. M., Kothe, R., Lee, J. H., Lorente, A., Lopes Ginja, A., Nungesser, L., Schilling, E., Stephan, G., Weinrich, C., ... Taylor, S. (2004). Measurement of strange-quark contributions to the nucleon's form factors at Q² = 0.230 (GeV/c)². Physical Review Letters, 93(2), 022002-1-022002-4. Article 022002. https://doi.org/10.1103/PhysRevLett.93.022002

@article{c3953544d4084c149e43e09b18f17d69,

title = "Measurement of strange-quark contributions to the nucleon's form factors at Q2 = 0.230 (GeV/c)2",

abstract = "A measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons was performed. A new type of very fast, homogeneous, total absorption calorimeter consisting of individual lead fluoride crystals was developed to detect the scattered electrons. It was observed that the energy, helicity and impact information were stored together in a three-dimensional histogram. The measurement shows for the first time evidence for the observation of a contribution of the strange quarks to the electric vector form factor of the nucleon.",

author = "Maas, {F. E.} and P. Achenbach and K. Aulenbacher and S. Baunack and L. Capozza and J. Diefenbach and K. Grimm and Y. Imai and T. Hammel and {Von Harrach}, D. and Kabu{\ss}, {E. M.} and R. Kothe and Lee, {J. H.} and A. Lorente and {Lopes Ginja}, A. and L. Nungesser and E. Schilling and G. Stephan and C. Weinrich and I. Altarev and J. Arvieux and B. Collin and R. Frascaria and M. Guidal and R. Kunne and D. Marchand and M. Morlet and S. Ong and {Van De Wiele}, J. and S. Kowalski and B. Plaster and R. Suleiman and S. Taylor",

note = "Funding Information: This work is supported by the DFG under SFB 201, SPP 1034, by the IN2P3 of CNRS, and in part by the DOE. We are indebted to K. H. Kaiser and the MAMI crew and we thank the A1 Collaboration for the M{\o}ller polarimeter measurements.",

year = "2004",

month = jul,

day = "9",

doi = "10.1103/PhysRevLett.93.022002",

language = "English",

volume = "93",

pages = "022002--1--022002--4",

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Maas, FE, Achenbach, P, Aulenbacher, K, Baunack, S, Capozza, L, Diefenbach, J, Grimm, K, Imai, Y, Hammel, T, Von Harrach, D, Kabuß, EM, Kothe, R, Lee, JH, Lorente, A, Lopes Ginja, A, Nungesser, L, Schilling, E, Stephan, G, Weinrich, C, Altarev, I, Arvieux, J, Collin, B, Frascaria, R, Guidal, M, Kunne, R, Marchand, D, Morlet, M, Ong, S, Van De Wiele, J, Kowalski, S, Plaster, B, Suleiman, R & Taylor, S 2004, 'Measurement of strange-quark contributions to the nucleon's form factors at Q² = 0.230 (GeV/c)²', Physical Review Letters, vol. 93, no. 2, 022002, pp. 022002-1-022002-4. https://doi.org/10.1103/PhysRevLett.93.022002

TY - JOUR

T1 - Measurement of strange-quark contributions to the nucleon's form factors at Q2 = 0.230 (GeV/c)2

AU - Maas, F. E.

AU - Achenbach, P.

AU - Aulenbacher, K.

AU - Baunack, S.

AU - Capozza, L.

AU - Diefenbach, J.

AU - Grimm, K.

AU - Imai, Y.

AU - Hammel, T.

AU - Von Harrach, D.

AU - Kabuß, E. M.

AU - Kothe, R.

AU - Lee, J. H.

AU - Lorente, A.

AU - Lopes Ginja, A.

AU - Nungesser, L.

AU - Schilling, E.

AU - Stephan, G.

AU - Weinrich, C.

AU - Altarev, I.

AU - Arvieux, J.

AU - Collin, B.

AU - Frascaria, R.

AU - Guidal, M.

AU - Kunne, R.

AU - Marchand, D.

AU - Morlet, M.

AU - Ong, S.

AU - Van De Wiele, J.

AU - Kowalski, S.

AU - Plaster, B.

AU - Suleiman, R.

AU - Taylor, S.

N1 - Funding Information: This work is supported by the DFG under SFB 201, SPP 1034, by the IN2P3 of CNRS, and in part by the DOE. We are indebted to K. H. Kaiser and the MAMI crew and we thank the A1 Collaboration for the Møller polarimeter measurements.

PY - 2004/7/9

Y1 - 2004/7/9

N2 - A measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons was performed. A new type of very fast, homogeneous, total absorption calorimeter consisting of individual lead fluoride crystals was developed to detect the scattered electrons. It was observed that the energy, helicity and impact information were stored together in a three-dimensional histogram. The measurement shows for the first time evidence for the observation of a contribution of the strange quarks to the electric vector form factor of the nucleon.

AB - A measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons was performed. A new type of very fast, homogeneous, total absorption calorimeter consisting of individual lead fluoride crystals was developed to detect the scattered electrons. It was observed that the energy, helicity and impact information were stored together in a three-dimensional histogram. The measurement shows for the first time evidence for the observation of a contribution of the strange quarks to the electric vector form factor of the nucleon.

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DO - 10.1103/PhysRevLett.93.022002

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AN - SCOPUS:4043055695

SN - 0031-9007

VL - 93

SP - 022002-1-022002-4

JO - Physical Review Letters

JF - Physical Review Letters

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