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Title: Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment

Abstract

We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 < Q{sup 2} < 1.0 GeV{sup 2}. These asymmetries, arising from interference of the electromagnetic and neutral weak interactions, are sensitive to strange quark contributions to the currents of the proton. The measurements were made at JLab using a toroidal spectrometer to detect the recoiling protons from a liquid hydrogen target. The results indicate non-zero, Q{sup 2} dependent, strange quark contributions and provide new information beyond that obtained in previous experiments.

Authors:
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Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
841146
Report Number(s):
JLAB-PHY-05-315; DOE/ER/40150-3462; nucl-ex/0506021
Journal ID: ISSN 0031--9007; TRN: US200513%%367
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Journal Volume: 95; Journal Issue: 9; Other Information: No journal information given for this preprint; PBD: 1 Jun 2005
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; HYDROGEN; MOMENTUM TRANSFER; PROTONS; QUARKS; SCATTERING; SPECTROMETERS; WEAK INTERACTIONS

Citation Formats

David Armstrong, Francois Arvieux, Razmik Asaturyan, Todd Averett, Stephanie Bailey, Guillaume Batigne, Douglas Beck, Elizabeth Beise, Jay Benesch, Louis Bimbot, James Birchall, Angela Biselli, Peter Bosted, Elodie Boukobza, Herbert Breuer, Roger Carlini, R. Carr, Nicholas Chant, Yu-Chiu Chao, Swapan Chattopadhyay, Russell Clark, Silviu Covrig, Anthony Cowley, Daniel Dale, C. Davis, Willie Falk, John Finn, Tony Forest, Gregg Franklin, Christophe Furget, David Gaskell, Joseph Grames, Keith Griffioen, Klaus Grimm, Benoit Guillon, Hayko Guler, Lars Hannelius, R. Hasty, A. Hawthorne Allen, Tanja Horn, Kathleen Johnston, Mark Jones, Peter Kammel, Reza Kazimi, Paul King, Ameya Kolarkar, Elie Korkmaz, Wolfgang Korsch, Serge Kox, Joachim Kuhn, Jeff Lachniet, Lawrence Lee, Jason Lenoble, Eric Liatard, J. Liu, Berenice Loupias, A. Lung, Glen MacLachlan, Dominique Marchand, J.W. Martin, Kenneth McFarlane, Daniella Mckee, Robert McKeown, Fernand Merchez, Hamlet Mkrtchyan, Bryan Moffit, M. Morlet, Itaru Nakagawa, Kazutaka Nakahara, Melissa Nakos, Retief Neveling, Silvia Niccolai, S. Ong, Shelley Page, Vassilios Papavassiliou, Stephen Pate, Sarah Phillips, Mark Pitt, Benard Poelker, Tracy Porcelli, Gilles Quemener, Brian Quinn, William Ramsay, Aamer Rauf, Jean-Sebastien Real, Julie Roche, Philip Roos, Gary Rutledge, Jeffery Secrest, Neven Simicevic, G.R. Smith, Damon Spayde, Samuel Stepanyan, Marcy Stutzman, Vincent Sulkosky, Vardan Tadevosyan, Raphael Tieulent, Jacques Van de Wiele, Willem van Oers, Eric Voutier, William Vulcan, G. Warren, S.P. Wells, Steven Williamson, S.A. Wood, Chen Yan, Junho Yun, and Valdis Zeps. Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment. United States: N. p., 2005. Web. doi:10.1103/PhysRevLett.95.092001.
David Armstrong, Francois Arvieux, Razmik Asaturyan, Todd Averett, Stephanie Bailey, Guillaume Batigne, Douglas Beck, Elizabeth Beise, Jay Benesch, Louis Bimbot, James Birchall, Angela Biselli, Peter Bosted, Elodie Boukobza, Herbert Breuer, Roger Carlini, R. Carr, Nicholas Chant, Yu-Chiu Chao, Swapan Chattopadhyay, Russell Clark, Silviu Covrig, Anthony Cowley, Daniel Dale, C. Davis, Willie Falk, John Finn, Tony Forest, Gregg Franklin, Christophe Furget, David Gaskell, Joseph Grames, Keith Griffioen, Klaus Grimm, Benoit Guillon, Hayko Guler, Lars Hannelius, R. Hasty, A. Hawthorne Allen, Tanja Horn, Kathleen Johnston, Mark Jones, Peter Kammel, Reza Kazimi, Paul King, Ameya Kolarkar, Elie Korkmaz, Wolfgang Korsch, Serge Kox, Joachim Kuhn, Jeff Lachniet, Lawrence Lee, Jason Lenoble, Eric Liatard, J. Liu, Berenice Loupias, A. Lung, Glen MacLachlan, Dominique Marchand, J.W. Martin, Kenneth McFarlane, Daniella Mckee, Robert McKeown, Fernand Merchez, Hamlet Mkrtchyan, Bryan Moffit, M. Morlet, Itaru Nakagawa, Kazutaka Nakahara, Melissa Nakos, Retief Neveling, Silvia Niccolai, S. Ong, Shelley Page, Vassilios Papavassiliou, Stephen Pate, Sarah Phillips, Mark Pitt, Benard Poelker, Tracy Porcelli, Gilles Quemener, Brian Quinn, William Ramsay, Aamer Rauf, Jean-Sebastien Real, Julie Roche, Philip Roos, Gary Rutledge, Jeffery Secrest, Neven Simicevic, G.R. Smith, Damon Spayde, Samuel Stepanyan, Marcy Stutzman, Vincent Sulkosky, Vardan Tadevosyan, Raphael Tieulent, Jacques Van de Wiele, Willem van Oers, Eric Voutier, William Vulcan, G. Warren, S.P. Wells, Steven Williamson, S.A. Wood, Chen Yan, Junho Yun, & Valdis Zeps. Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment. United States. doi:10.1103/PhysRevLett.95.092001.
David Armstrong, Francois Arvieux, Razmik Asaturyan, Todd Averett, Stephanie Bailey, Guillaume Batigne, Douglas Beck, Elizabeth Beise, Jay Benesch, Louis Bimbot, James Birchall, Angela Biselli, Peter Bosted, Elodie Boukobza, Herbert Breuer, Roger Carlini, R. Carr, Nicholas Chant, Yu-Chiu Chao, Swapan Chattopadhyay, Russell Clark, Silviu Covrig, Anthony Cowley, Daniel Dale, C. Davis, Willie Falk, John Finn, Tony Forest, Gregg Franklin, Christophe Furget, David Gaskell, Joseph Grames, Keith Griffioen, Klaus Grimm, Benoit Guillon, Hayko Guler, Lars Hannelius, R. Hasty, A. Hawthorne Allen, Tanja Horn, Kathleen Johnston, Mark Jones, Peter Kammel, Reza Kazimi, Paul King, Ameya Kolarkar, Elie Korkmaz, Wolfgang Korsch, Serge Kox, Joachim Kuhn, Jeff Lachniet, Lawrence Lee, Jason Lenoble, Eric Liatard, J. Liu, Berenice Loupias, A. Lung, Glen MacLachlan, Dominique Marchand, J.W. Martin, Kenneth McFarlane, Daniella Mckee, Robert McKeown, Fernand Merchez, Hamlet Mkrtchyan, Bryan Moffit, M. Morlet, Itaru Nakagawa, Kazutaka Nakahara, Melissa Nakos, Retief Neveling, Silvia Niccolai, S. Ong, Shelley Page, Vassilios Papavassiliou, Stephen Pate, Sarah Phillips, Mark Pitt, Benard Poelker, Tracy Porcelli, Gilles Quemener, Brian Quinn, William Ramsay, Aamer Rauf, Jean-Sebastien Real, Julie Roche, Philip Roos, Gary Rutledge, Jeffery Secrest, Neven Simicevic, G.R. Smith, Damon Spayde, Samuel Stepanyan, Marcy Stutzman, Vincent Sulkosky, Vardan Tadevosyan, Raphael Tieulent, Jacques Van de Wiele, Willem van Oers, Eric Voutier, William Vulcan, G. Warren, S.P. Wells, Steven Williamson, S.A. Wood, Chen Yan, Junho Yun, and Valdis Zeps. Wed . "Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment". United States. doi:10.1103/PhysRevLett.95.092001. https://www.osti.gov/servlets/purl/841146.
@article{osti_841146,
title = {Strange Quark Contributions to Parity-Violating Asymmetries in the Forward G0 Electron-Proton Scattering Experiment},
author = {David Armstrong and Francois Arvieux and Razmik Asaturyan and Todd Averett and Stephanie Bailey and Guillaume Batigne and Douglas Beck and Elizabeth Beise and Jay Benesch and Louis Bimbot and James Birchall and Angela Biselli and Peter Bosted and Elodie Boukobza and Herbert Breuer and Roger Carlini and R. Carr and Nicholas Chant and Yu-Chiu Chao and Swapan Chattopadhyay and Russell Clark and Silviu Covrig and Anthony Cowley and Daniel Dale and C. Davis and Willie Falk and John Finn and Tony Forest and Gregg Franklin and Christophe Furget and David Gaskell and Joseph Grames and Keith Griffioen and Klaus Grimm and Benoit Guillon and Hayko Guler and Lars Hannelius and R. Hasty and A. Hawthorne Allen and Tanja Horn and Kathleen Johnston and Mark Jones and Peter Kammel and Reza Kazimi and Paul King and Ameya Kolarkar and Elie Korkmaz and Wolfgang Korsch and Serge Kox and Joachim Kuhn and Jeff Lachniet and Lawrence Lee and Jason Lenoble and Eric Liatard and J. Liu and Berenice Loupias and A. Lung and Glen MacLachlan and Dominique Marchand and J.W. Martin and Kenneth McFarlane and Daniella Mckee and Robert McKeown and Fernand Merchez and Hamlet Mkrtchyan and Bryan Moffit and M. Morlet and Itaru Nakagawa and Kazutaka Nakahara and Melissa Nakos and Retief Neveling and Silvia Niccolai and S. Ong and Shelley Page and Vassilios Papavassiliou and Stephen Pate and Sarah Phillips and Mark Pitt and Benard Poelker and Tracy Porcelli and Gilles Quemener and Brian Quinn and William Ramsay and Aamer Rauf and Jean-Sebastien Real and Julie Roche and Philip Roos and Gary Rutledge and Jeffery Secrest and Neven Simicevic and G.R. Smith and Damon Spayde and Samuel Stepanyan and Marcy Stutzman and Vincent Sulkosky and Vardan Tadevosyan and Raphael Tieulent and Jacques Van de Wiele and Willem van Oers and Eric Voutier and William Vulcan and G. Warren and S.P. Wells and Steven Williamson and S.A. Wood and Chen Yan and Junho Yun and Valdis Zeps},
abstractNote = {We have measured parity-violating asymmetries in elastic electron-proton scattering over the range of momentum transfers 0.12 < Q{sup 2} < 1.0 GeV{sup 2}. These asymmetries, arising from interference of the electromagnetic and neutral weak interactions, are sensitive to strange quark contributions to the currents of the proton. The measurements were made at JLab using a toroidal spectrometer to detect the recoiling protons from a liquid hydrogen target. The results indicate non-zero, Q{sup 2} dependent, strange quark contributions and provide new information beyond that obtained in previous experiments.},
doi = {10.1103/PhysRevLett.95.092001},
journal = {},
issn = {0031--9007},
number = 9,
volume = 95,
place = {United States},
year = {2005},
month = {6}
}