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William A. Tobias
Researcher at University of Virginia
Publications - 65
Citations - 2091
William A. Tobias is an academic researcher from University of Virginia. The author has contributed to research in topics: Nucleon & Asymmetry. The author has an hindex of 22, co-authored 62 publications receiving 1847 citations. Previous affiliations of William A. Tobias include Duke University.
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Journal ArticleDOI
Precision Measurements of the Nucleon Strange Form Factors at Q 2 ∼ 0.1 GeV 2
A. Acha,K. A. Aniol,D. S. Armstrong,John Arrington,T. Averett,S. L. Bailey,J. Barber,A. Beck,H. Benaoum,J. Benesch,P.Y. Bertin,P. Bosted,F. Butaru,E. Burtin,G. D. Cates,Y. C. Chao,J. P. Chen,E. Chudakov,E. Cisbani,B. Craver,F. Cusanno,R. De Leo,P. Decowski,A. Deur,R. J. Feuerbach,J. M. Finn,S. Frullani,S. Fuchs,K. Fuoti,Ronald Gilman,Ronald Gilman,Lindsay Glesener,K. Grimm,J. Grames,J. O. Hansen,J. Hansknecht,Douglas Higinbotham,R. Holmes,T. Holmstrom,H. F. Ibrahim,C. W. de Jager,X. Jiang,Joseph M. Katich,L. J. Kaufman,A. Kelleher,P. M. King,A. Kolarkar,S. Kowalski,E. Kuchina,K. S. Kumar,L. Lagamba,Peter S. LaViolette,J. J. LeRose,R. A. Lindgren,D. Lhuillier,Nilanga Liyanage,D. J. Margaziotis,Pete Markowitz,D. G. Meekins,Z. E. Meziani,R. Michaels,Bryan J. Moffit,S. K. Nanda,V. Nelyubin,V. Nelyubin,K. Otis,Kent Paschke,S. K. Phillips,M. Poelker,R. I. Pomatsalyuk,M. Potokar,Y. Prok,A. J. R. Puckett,Xin Qian,Yujie Qiang,B. Reitz,J. Roche,A. Saha,B. Sawatzky,Jaideep Singh,Karl Slifer,S. Širca,R. Snyder,P. Solvignon,Paul Souder,M. Stutzman,R. Subedi,R. Suleiman,V. Sulkosky,William A. Tobias,P. E. Ulmer,G. M. Urciuoli,K. Wang,A. Whitbeck,Richard Wilson,Bogdan Wojtsekhowski,H. Yao,Y. X. Ye,X. Zhan,X. Zheng,X. Zheng,S. Zhou,V. Ziskin +102 more
TL;DR: In this article, the parity-violating asymmetry A_PV in elastic scattering of 3 GeV electrons off hydrogen and 4He targets with ~6.0 degrees was measured.
Journal ArticleDOI
Parity-violating electron scattering from 4He and the strange electric form factor of the nucleon.
K. A. Aniol,D. S. Armstrong,T. Averett,H. Benaoum,P.Y. Bertin,E. Burtin,J. Cahoon,G. D. Cates,C. C. Chang,Y. C. Chao,J. P. Chen,Seonho Choi,E. Chudakov,B. Craver,F. Cusanno,P. Decowski,D. Deepa,C. Ferdi,R. J. Feuerbach,J. M. Finn,S. Frullani,K. Fuoti,F. Garibaldi,Ronald Gilman,Ronald Gilman,A. V. Glamazdin,V. Gorbenko,J. Grames,J. Hansknecht,Douglas Higinbotham,R. Holmes,T. Holmstrom,T. B. Humensky,H. F. Ibrahim,C. W. de Jager,X. Jiang,L. J. Kaufman,A. Kelleher,A. Kolarkar,S. Kowalski,K. S. Kumar,D. Lambert,Peter S. LaViolette,J. J. LeRose,D. Lhuillier,Nilanga Liyanage,D. J. Margaziotis,M. Mazouz,K. McCormick,D. G. Meekins,Z. E. Meziani,R. Michaels,Bryan J. Moffit,P. Monaghan,C. Muñoz-Camacho,S. K. Nanda,V. Nelyubin,V. Nelyubin,D. Neyret,Kent Paschke,M. Poelker,R. I. Pomatsalyuk,Yujie Qiang,B. Reitz,J. Roche,A. Saha,Jaideep Singh,R. Snyder,Paul Souder,R. Subedi,R. Suleiman,V. Sulkosky,William A. Tobias,G. M. Urciuoli,Antonin Vacheret,E. Voutier,K. Wang,Richard Wilson,Bogdan Wojtsekhowski,X. Zheng +79 more
TL;DR: For the first time, the strange electric form factor of the nucleon G(E)s can be isolated and the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from 4He is measured.
Journal ArticleDOI
Deeply Virtual Compton Scattering off the Neutron
M. Benali,C. Desnault,M. Mazouz,Z. Ahmed,H. Albataineh,Kalyan Allada,K. A. Aniol,V. Bellini,W. U. Boeglin,P. Bertin,P. Bertin,M. Brossard,A. Camsonne,Mustafa Canan,S. Chandavar,Chunhui Chen,J. P. Chen,Maxime Defurne,C. W. de Jager,R. De Leo,A. Deur,L. El Fassi,L. El Fassi,Rolf Ent,D. Flay,M. Friend,E. Fuchey,S. Frullani,F. Garibaldi,David Gaskell,A. Giusa,O. Glamazdin,S. Golge,J. Gomez,Olfred Hansen,Douglas Higinbotham,T. Holmstrom,Tanja Horn,J. Huang,M. Huang,G. M. Huber,Charles Hyde,Charles Hyde,S. Iqbal,F. Itard,Ho. Kang,H. Kang,A. Kelleher,Cynthia Keppel,S. Koirala,I. Korover,J. LeRose,R. A. Lindgren,E. Long,M. Magne,Juliette Mammei,D. J. Margaziotis,Pete Markowitz,A. Martí Jiménez-Argüello,A. Martí Jiménez-Argüello,Franco Meddi,D. G. Meekins,R. Michaels,M. Mihovilovic,N. Muangma,C. Munoz Camacho,C. Munoz Camacho,P. Nadel-Turonski,N. Nuruzzaman,R. Paremuzyan,R. I. Pomatsalyuk,Andrew Puckett,V. A. Punjabi,Yujie Qiang,Abdurahim Rakhman,M. N. H. Rashad,S. Riordan,J. Roche,G.V. Russo,F. Sabatié,Kiadtisak Saenboonruang,Kiadtisak Saenboonruang,Arijit Saha,B. Sawatzky,B. Sawatzky,L. Selvy,A. Shahinyan,Simon Širca,P. Solvignon,M. L. Sperduto,R. Subedi,Vincent Sulkosky,C. M. Sutera,William A. Tobias,G. M. Urciuoli,D. Wang,Bogdan Wojtsekhowski,H. Yao,Z. Ye,L. Zana,X. Zhan,Jie Zhang,B. Zhao,Z. W. Zhao,X. Zheng,P. Zhu +105 more
TL;DR: The present experiment exploits the interference between the deeply virtual Compton scattering (DVCS) and the Bethe-Heitler processes to extract a linear combination of generalized parton distributions (GPDs) particularly sensitive to E_{q}, the least constrained GPD.
Journal ArticleDOI
First Determination of the Weak Charge of the Proton
Darko Androić,D. S. Armstrong,A. Asaturyan,T. Averett,J. Balewski,J. Beaufait,R. S. Beminiwattha,Jay Benesch,Fatiha Benmokhtar,J. Birchall,R. D. Carlini,G. D. Cates,J. C. Cornejo,S. Covrig,M. M. Dalton,C. A. Davis,Wouter Deconinck,J. Diefenbach,J. F. Dowd,J. A. Dunne,Dipangkar Dutta,W. S. Duvall,M. Elaasar,W. R. Falk,John M. Finn,T. A. Forest,D. Gaskell,Michael Gericke,J. Grames,V. M. Gray,Kathryn Grimm,F. Guo,Hoskins,K. Johnston,D. C. Jones,Matthew Jones,R. W. L. Jones,M. Kargiantoulakis,P. M. King,E. Korkmaz,S. Kowalski,J. Leacock,J. Leckey,A. R. Lee,Jongmin Lee,L. Lee,S. MacEwan,D. J. Mack,J. A. Magee,R. Mahurin,Juliette Mammei,J. W. Martin,M. J. McHugh,D. G. Meekins,J. Mei,R. Michaels,A. Micherdzinska,A. Mkrtchyan,H. Mkrtchyan,N. Morgan,K. E. Myers,Amrendra Narayan,L. Z. Ndukum,Nelyubin,Nuruzzaman,van Oers Wt,A. K. Opper,S. A. Page,J. Pan,Kent Paschke,S. K. Phillips,Michael Pitt,M. Poelker,Jean-Francois Rajotte,W. D. Ramsay,J. Roche,B. Sawatzky,T. Seva,M. H. Shabestari,R. Silwal,Neven Simicevic,Geoffrey Smith,P. Solvignon,D. T. Spayde,A. Subedi,R. Subedi,Riad Suleiman,Tadevosyan,William A. Tobias,Tvaskis,B. Waidyawansa,P. Wang,S. P. Wells,S. A. Wood,S. Yang,Ross D. Young,S. Zhamkochyan +96 more
TL;DR: The Qweak experiment has measured the parity-violating asymmetry in polarized e-p elastic scattering at Q2 = 0.025(GeV/c)2, employing 145 microamps of 89% longitudinally polarized electrons on a 34.4cm long liquid hydrogen target at Jefferson Lab.
Journal ArticleDOI
Precision Measurement of the Weak Charge of the Proton
Darko Androić,D. S. Armstrong,A. Asaturyan,T. Averett,J. Balewski,K. Bartlett,J. Beaufait,R. S. Beminiwattha,Jay Benesch,Fatiha Benmokhtar,J. Birchall,R. D. Carlini,J. C. Cornejo,S. Covrig Dusa,M. M. Dalton,C. A. Davis,Wouter Deconinck,J. Diefenbach,J. F. Dowd,J. A. Dunne,Dipangkar Dutta,W. S. Duvall,M. Elaasar,W. R. Falk,John M. Finn,T. A. Forest,C. Gal,D. Gaskell,Michael Gericke,Joseph Grames,V. M. Gray,Kathryn Grimm,F. Guo,J. R. Hoskins,D. C. Jones,Matthew Jones,R. W. L. Jones,M. Kargiantoulakis,P. M. King,E. Korkmaz,S. Kowalski,J. Leacock,J. Leckey,A. R. Lee,Jongmin Lee,L. Lee,S. MacEwan,D. J. Mack,J. A. Magee,R. Mahurin,Juliette Mammei,Jonathan W. Martin,M. J. McHugh,D. G. Meekins,J. Mei,K. E. Mesick,R. Michaels,A. Micherdzinska,A. Mkrtchyan,H. Mkrtchyan,N. Morgan,Amrendra Narayan,L. Z. Ndukum,Vladimir Nelyubin,H. Nuhait,Nuruzzaman,W. T. H. van Oers,A. K. Opper,S. A. Page,J. Pan,Kent Paschke,S. K. Phillips,Michael Pitt,M. Poelker,Jean-Francois Rajotte,W. D. Ramsay,J. Roche,B. Sawatzky,T. Seva,M. H. Shabestari,R. Silwal,Neven Simicevic,Geoffrey Smith,P. Solvignon,D. T. Spayde,A. Subedi,R. Subedi,Riad Suleiman,V. Tadevosyan,William A. Tobias,V. Tvaskis,B. Waidyawansa,P. Wang,S. P. Wells,S. A. Wood,S. Yang,Ross D. Young,P. Zang,S. Zhamkochyan +98 more
TL;DR: In this paper, the weak charge of the proton was measured using parity-violating (PV) polarized electron-proton scattering asymmetry, and the value of Q_W^p was derived from the predicted neutral electroweak force.