Parity-violating inelastic electron-proton scattering at low Q2 above the resonance region

Qweak Collaboration

doi:10.1103/PhysRevC.101.055503

Parity-violating inelastic electron-proton scattering at low Q2 above the resonance region

Qweak Collaboration

University of Zagreb
College of William and Mary
Yerevan Physics Institute
Ohio University
Louisiana Tech University
Thomas Jefferson National Accelerator Facility
Christopher Newport University
University of Manitoba
University of Virginia
TRIUMF
Mississippi State University
Virginia Polytechnic Institute and State University
Southern University at New Orleans
Massachusetts Institute of Technology
University of Connecticut
University of Northern British Columbia
University of Winnipeg
George Washington University
State University of New Jersey
Rutgers University–New Brunswick

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

4 Citations (Scopus)

Résumé

We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at Q2=0.082GeV2 and W=2.23 GeV, above the resonance region. The result AInel=-13.5±2.0(stat)±3.9(syst) ppm agrees with theoretical calculations, and helps to validate the modeling of the γZ interference structure functions F1γZ and F2γZ used in those calculations, which are also used for determination of the two-boson exchange γ-Z box diagram (□γZ) contribution to parity-violating elastic scattering measurements. A positive parity-violating asymmetry for inclusive π- production was observed, as well as positive beam-normal single-spin asymmetry for scattered electrons and a negative beam-normal single-spin asymmetry for inclusive π- production.

langue originale	Anglais
Numéro d'article	055503
journal	Physical Review C
Volume	101
Numéro de publication	5
Les DOIs	https://doi.org/10.1103/PhysRevC.101.055503
état	Publié - 1 mai 2020
Modification externe	Oui

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10.1103/PhysRevC.101.055503

Contient cette citation

@article{a6b37e6986b44bd38b54eadba2e7bce5,

title = "Parity-violating inelastic electron-proton scattering at low Q2 above the resonance region",

abstract = "We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at Q2=0.082GeV2 and W=2.23 GeV, above the resonance region. The result AInel=-13.5±2.0(stat)±3.9(syst) ppm agrees with theoretical calculations, and helps to validate the modeling of the γZ interference structure functions F1γZ and F2γZ used in those calculations, which are also used for determination of the two-boson exchange γ-Z box diagram (□γZ) contribution to parity-violating elastic scattering measurements. A positive parity-violating asymmetry for inclusive π- production was observed, as well as positive beam-normal single-spin asymmetry for scattered electrons and a negative beam-normal single-spin asymmetry for inclusive π- production.",

author = "\{Qweak Collaboration\} and D. Androi{\'c} and Armstrong, \{D. S.\} and A. Asaturyan and K. Bartlett and Beminiwattha, \{R. S.\} and J. Benesch and F. Benmokhtar and J. Birchall and Carlini, \{R. D.\} and Cornejo, \{J. C.\} and \{Covrig Dusa\}, S. and Dalton, \{M. M.\} and Davis, \{C. A.\} and W. Deconinck and Dowd, \{J. F.\} and Dunne, \{J. A.\} and D. Dutta and Duvall, \{W. S.\} and M. Elaasar and Falk, \{W. R.\} and Finn, \{J. M.\} and C. Gal and D. Gaskell and Gericke, \{M. T.W.\} and J. Grames and Gray, \{V. M.\} and K. Grimm and F. Guo and Hoskins, \{J. R.\} and D. Jones and Jones, \{M. K.\} and Jones, \{R. T.\} and M. Kargiantoulakis and King, \{P. M.\} and E. Korkmaz and S. Kowalski and J. Leacock and Leckey, \{J. P.\} and Lee, \{A. R.\} and Lee, \{J. H.\} and L. Lee and S. Macewan and D. Mack and Magee, \{J. A.\} and J. Mammei and Martin, \{J. W.\} and Mchugh, \{M. J.\} and D. Meekins and Mesick, \{K. E.\} and R. Michaels",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

year = "2020",

month = may,

day = "1",

doi = "10.1103/PhysRevC.101.055503",

language = "English",

volume = "101",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "5",

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TY - JOUR

T1 - Parity-violating inelastic electron-proton scattering at low Q2 above the resonance region

AU - Qweak Collaboration

AU - Androić, D.

AU - Armstrong, D. S.

AU - Asaturyan, A.

AU - Bartlett, K.

AU - Beminiwattha, R. S.

AU - Benesch, J.

AU - Benmokhtar, F.

AU - Birchall, J.

AU - Carlini, R. D.

AU - Cornejo, J. C.

AU - Covrig Dusa, S.

AU - Dalton, M. M.

AU - Davis, C. A.

AU - Deconinck, W.

AU - Dowd, J. F.

AU - Dunne, J. A.

AU - Dutta, D.

AU - Duvall, W. S.

AU - Elaasar, M.

AU - Falk, W. R.

AU - Finn, J. M.

AU - Gal, C.

AU - Gaskell, D.

AU - Gericke, M. T.W.

AU - Grames, J.

AU - Gray, V. M.

AU - Grimm, K.

AU - Guo, F.

AU - Hoskins, J. R.

AU - Jones, D.

AU - Jones, M. K.

AU - Jones, R. T.

AU - Kargiantoulakis, M.

AU - King, P. M.

AU - Korkmaz, E.

AU - Kowalski, S.

AU - Leacock, J.

AU - Leckey, J. P.

AU - Lee, A. R.

AU - Lee, J. H.

AU - Lee, L.

AU - Macewan, S.

AU - Mack, D.

AU - Magee, J. A.

AU - Mammei, J.

AU - Martin, J. W.

AU - Mchugh, M. J.

AU - Meekins, D.

AU - Mesick, K. E.

AU - Michaels, R.

PY - 2020/5/1

Y1 - 2020/5/1

N2 - We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at Q2=0.082GeV2 and W=2.23 GeV, above the resonance region. The result AInel=-13.5±2.0(stat)±3.9(syst) ppm agrees with theoretical calculations, and helps to validate the modeling of the γZ interference structure functions F1γZ and F2γZ used in those calculations, which are also used for determination of the two-boson exchange γ-Z box diagram (□γZ) contribution to parity-violating elastic scattering measurements. A positive parity-violating asymmetry for inclusive π- production was observed, as well as positive beam-normal single-spin asymmetry for scattered electrons and a negative beam-normal single-spin asymmetry for inclusive π- production.

AB - We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at Q2=0.082GeV2 and W=2.23 GeV, above the resonance region. The result AInel=-13.5±2.0(stat)±3.9(syst) ppm agrees with theoretical calculations, and helps to validate the modeling of the γZ interference structure functions F1γZ and F2γZ used in those calculations, which are also used for determination of the two-boson exchange γ-Z box diagram (□γZ) contribution to parity-violating elastic scattering measurements. A positive parity-violating asymmetry for inclusive π- production was observed, as well as positive beam-normal single-spin asymmetry for scattered electrons and a negative beam-normal single-spin asymmetry for inclusive π- production.

U2 - 10.1103/PhysRevC.101.055503

DO - 10.1103/PhysRevC.101.055503

M3 - Article

AN - SCOPUS:85092551594

SN - 2469-9985

VL - 101

JO - Physical Review C

JF - Physical Review C

IS - 5

M1 - 055503

ER -

Parity-violating inelastic electron-proton scattering at low Q2 above the resonance region

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