Measurement of strange-quark contributions to the nucleon's form factors at Q2=0.230 (GeV/c)2 -: art. no. 022002
- Publication type:
- Journal article
- Metadata:
-
- Autoren
- FE Maas
- P Achenbach
- K Aulenbacher
- S Baunack
- L Capozza
- J Diefenbach
- K Grimm
- Y Imai
- T Hammel
- D von Harrach
- EM Kabuss
- R Kothe
- JH Lee
- A Lorente
- AL 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
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000222532100024&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1103/PhysRevLett.93.022002
- eISSN
- 1079-7114
- Externe Identifier
- Clarivate Analytics Document Solution ID: 836CF
- PubMed Identifier: 15323904
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- PHYSICAL REVIEW LETTERS
- Artikelnummer
- ARTN 022002
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Titel
- Measurement of strange-quark contributions to the nucleon's form factors at <i>Q</i><SUP>2</SUP>=0.230 (GeV/<i>c</i>)<SUP>2</SUP> -: art. no. 022002
- Sub types
- Article
- Ausgabe der Zeitschrift
- 93
Data source: Web of Science (Lite)
- Other metadata sources:
-
- Autoren
- FE 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
- JH 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
- eISSN
- 1079-7114
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Physical Review Letters
- Sprache
- en
- Artikelnummer
- 022002
- Online publication date
- 2004
- Status
- Published online
- Herausgeber
- American Physical Society (APS)
- Herausgeber URL
- http://dx.doi.org/10.1103/physrevlett.93.022002
- Datum der Datenerfassung
- 2017
- Titel
- Measurement of Strange-Quark Contributions to the Nucleon's Form Factors at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo>=</mml:mo><mml:mn>0.230</mml:mn><mml:mtext> </mml:mtext><mml:mo>(</mml:mo><mml:mi mathvariant="normal">G</mml:mi><mml:mi mathvariant="normal">e</mml:mi><mml:mi mathvariant="normal">V</mml:mi><mml:mo>/</mml:mo><mml:mi>c</mml:mi><mml:msup><mml:mo>)</mml:mo><mml:mn>2</mml:mn></mml:msup></mml:math>
- Ausgabe der Zeitschrift
- 93
Data source: Crossref
- Abstract
- We report on a measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons at a Q2 of 0.230 (GeV/c)(2) and a scattering angle of theta (e) = 30 degrees - 40 degrees. Using a large acceptance fast PbF2 calorimeter with a solid angle of delta omega = 0.62 sr, the A4 experiment is the first parity violation experiment to count individual scattering events. The measured asymmetry is A(phys)=(-5.44+/-0.54(stat)+/-0.26(sys))x10(-6). The standard model expectation assuming no strangeness contributions to the vector form factors is A(0) = (-6.30+/-0.43) x 10(-6). The difference is a direct measurement of the strangeness contribution to the vector form factors of the proton. The extracted value is G(s)(E) + 0.225G(s)(M) = 0.039+/-0.034 or F(s)(1) + 0.130F(s)(2) = 0.032+/-0.028.
- Addresses
- Institut für Kernphysik, Johannes Gutenberg Universität Mainz, J. J. Becherweg 45, D-55099 Mainz, Germany.
- Autoren
- FE Maas
- P Achenbach
- K Aulenbacher
- S Baunack
- L Capozza
- J Diefenbach
- K Grimm
- Y Imai
- T Hammel
- D von Harrach
- EM Kabuss
- R Kothe
- JH 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
- eISSN
- 1079-7114
- Externe Identifier
- PubMed Identifier: 15323904
- Open access
- false
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Physical review letters
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2004
- Paginierung
- 022002
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Datum der Datenerfassung
- 2004
- Titel
- Measurement of strange-quark contributions to the nucleon's form factors at Q(2) = 0.230 (GeV/c)(2).
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 93
Data source: Europe PubMed Central
- Abstract
- We report on a measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons at a Q2 of 0.230 (GeV/c)(2) and a scattering angle of theta (e) = 30 degrees - 40 degrees. Using a large acceptance fast PbF2 calorimeter with a solid angle of delta omega = 0.62 sr, the A4 experiment is the first parity violation experiment to count individual scattering events. The measured asymmetry is A(phys)=(-5.44+/-0.54(stat)+/-0.26(sys))x10(-6). The standard model expectation assuming no strangeness contributions to the vector form factors is A(0) = (-6.30+/-0.43) x 10(-6). The difference is a direct measurement of the strangeness contribution to the vector form factors of the proton. The extracted value is G(s)(E) + 0.225G(s)(M) = 0.039+/-0.034 or F(s)(1) + 0.130F(s)(2) = 0.032+/-0.028.
- Autoren
- FE Maas
- P Achenbach
- K Aulenbacher
- S Baunack
- L Capozza
- J Diefenbach
- K Grimm
- Y Imai
- T Hammel
- D von Harrach
- EM Kabuss
- R Kothe
- JH 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
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/15323904
- DOI
- 10.1103/PhysRevLett.93.022002
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Phys Rev Lett
- Sprache
- eng
- Country
- United States
- Paginierung
- 022002
- Datum der Veröffentlichung
- 2004
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2004
- Titel
- Measurement of strange-quark contributions to the nucleon's form factors at Q(2) = 0.230 (GeV/c)(2).
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 93
Data source: PubMed
- Abstract
- We report on a measurement of the parity-violating asymmetry in the scattering of longitudinally polarized electrons on unpolarized protons at a $Q^2$ of 0.230 (GeV/c)^2 and a scattering angle of \theta_e = 30^o - 40^o. Using a large acceptance fast PbF_2 calorimeter with a solid angle of \Delta\Omega = 0.62 sr the A4 experiment is the first parity violation experiment to count individual scattering events. The measured asymmetry is A_{phys} =(-5.44 +- 0.54_{stat} +- 0.27_{\rm sys}) 10^{-6}. The Standard Model expectation assuming no strangeness contributions to the vector form factors is $A_0=(-6.30 +- 0.43) 10^{-6}$. The difference is a direct measurement of the strangeness contribution to the vector form factors of the proton. The extracted value is G^s_E + 0.225 G^s_M = 0.039 +- 0.034 or F^s_1 + 0.130 F^s_2 = 0.032 +- 0.028.
- Autoren
- A4 Collaboration
- FE 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
- JH 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
- Autoren-URL
- http://arxiv.org/abs/nucl-ex/0401019v1
- Zeitschrift
- Phys.Rev.Lett.
- Schlüsselwörter
- nucl-ex
- nucl-ex
- Notes
- 5 pages, 3 figures, submitted to Phys. Rev. Letters on Dec 11, 2003
- Paginierung
- 022002
- Datum der Veröffentlichung
- 2004
- Herausgeber URL
- http://dx.doi.org/10.1103/PhysRevLett.93.022002
- Datum der Datenerfassung
- 2004
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2004
- Titel
- Measurement of Strange Quark Contributions to the Nucleon's Form Factors at Q^2=0.230 (GeV/c)^2
- Ausgabe der Zeitschrift
- 93
Files
0401019v1.pdf
Data source: arXiv
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