J
J. Birchall
Researcher at University of Manitoba
Publications - 13
Citations - 221
J. Birchall is an academic researcher from University of Manitoba. The author has contributed to research in topics: Scattering & Asymmetry. The author has an hindex of 7, co-authored 13 publications receiving 203 citations.
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Journal ArticleDOI
Test of charge symmetry in neutron-proton elastic scattering at 477 MeV
R. Abegg,Bandyopadhyay D,J. Birchall,E. Cairns,H. Coombes,C. A. Davis,Davison Ne,P. P. J. Delheij,P. W. Green,L.G. Greeniaus,H.P. Gubler,Healy Dc,Lapointe C,W.P. Lee,W.J. McDonald,C. A. Miller,G.A. Moss,G.R. Plattner,P.R. Poffenberger,W. D. Ramsay,G. Roy,J. Soukup,J.P. Svenne,R. Tkachuk,van Oers Wt,G.D. Wait,Y.P. Zhang +26 more
TL;DR: An experiment resulting in the first measurement of the isospin-mixing, charge-symmetry violating component of the n-italic-p-ITALic interaction has been performed and determined the difference in the angles of the zero crossing of the neutron and proton analyzing powers.
Journal ArticleDOI
The Qweak experimental apparatus
Trent Allison,Mitchell D. Anderson,Darko Androić,D. S. Armstrong,A. Asaturyan,T. Averett,R. Averill,J. Balewski,J. Beaufait,R. S. Beminiwattha,Jay Benesch,Fatiha Benmokhtar,J. Bessuille,J. Birchall,E. Bonnell,J. D. Bowman,P. Brindza,D.B. Brown,R.D. Carlini,R.D. Carlini,G. D. Cates,B. S. Cavness,G. Clark,J.C. Cornejo,S. Covrig Dusa,M. M. Dalton,C. A. Davis,D.C. Dean,Wouter Deconinck,J. Diefenbach,K. A. Dow,J. F. Dowd,J. A. Dunne,Dipangkar Dutta,W. S. Duvall,J.R. Echols,M. Elaasar,W. R. Falk,K.D. Finelli,J. M. Finn,D. Gaskell,Michael Gericke,J. Grames,V. M. Gray,K. Grimm,K. Grimm,F. Guo,J. Hansknecht,D.J. Harrison,E. Henderson,J. R. Hoskins,E. Ihloff,K. Johnston,D. C. Jones,M. K. Jones,R. T. Jones,M. Kargiantoulakis,J. Kelsey,Nadeem A. Khan,P. M. King,E. Korkmaz,S. Kowalski,A. Kubera,J. Leacock,J. Leckey,A. R. Lee,Jongmin Lee,Jongmin Lee,L. Lee,L. Lee,Y. Liang,S. MacEwan,D. J. Mack,J. A. Magee,R. Mahurin,Juliette Mammei,Juliette Mammei,J. W. Martin,Amber McCreary,M. McDonald,M. J. McHugh,P. Medeiros,D. G. Meekins,J. Mei,R. Michaels,A. Micherdzinska,A. Mkrtchyan,H. Mkrtchyan,N. Morgan,J. Musson,K. E. Mesick,Amrendra Narayan,L. Z. Ndukum,Vladimir Nelyubin,Nuruzzaman,Nuruzzaman,W. T. H. van Oers,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,W. D. Ramsay,W.R. Roberts,J. Roche,P.W. Rose,B. Sawatzky,T. Seva,M. H. Shabestari,R. Silwal,Neven Simicevic,G. R. Smith,S. Sobczynski,P. Solvignon,D. T. Spayde,B. Stokes,Douglas Storey,A. Subedi,R. Subedi,R. Suleiman,V. Tadevosyan,William A. Tobias,V. Tvaskis,V. Tvaskis,Erik Urban,B. Waidyawansa,P. Wang,S. Wells,S. A. Wood,S. Yang,S. Zhamkochyan,R.B. Zielinski +136 more
TL;DR: The Jefferson Lab weak experiment determined the weak charge of the proton by measuring the parity-violating elastic scattering asymmetry of longitudinally polarized electrons from an unpolarized liquid hydrogen target at small momentum transfer as discussed by the authors.
Posted Content
The Qweak Experiment: A Search for New Physics at the TeV Scale via a Measurement of the Proton's Weak Charge
R. D. Carlini,John M. Finn,S. Kowalski,S. A. Page,D. S. Armstrong,A. Asaturyan,T. Averett,Jay Benesch,J. Birchall,P. E. Bosted,A. Bruell,C. L. Capuano,G. D. Cates,C. Carrigee,S. Chattopadhyay,S. Covrig,C. A. Davis,K. A. Dow,J. A. Dunne,Dipangkar Dutta,Rolf Ent,J. Erler,W. R. Falk,H. C. Fenker,T. A. Forest,W. Franklin,D. Gaskell,Michael Gericke,Joseph Grames,K. Grimm,F. W. Hersman,Douglas Higinbotham,M. Holtrop,J. R. Hoskins,K. Johnston,E. Ihloff,Matthew Jones,R. W. L. Jones,K. Joo,J. Kelsey,C. E. Keppel,M. Khol,P. M. King,E. Korkmaz,J. Leacock,J. Leckey,L. Lee,A. Lung,D. J. Mack,S. Majewski,Juliette Mammei,J. W. Martin,D. G. Meekins,A. M. Micherdzinska,A. Mkrtchyan,H. Mkrtchyan,N. Morgan,K. E. Myers,Amrendra Narayan,A. K. Opper,J. Pan,Kent Paschke,Michael Pitt,M. Poelker,Y. Prok,W. D. Ramsay,M. Ramsey-Musolf,J. Roche,Neven Simicevic,Geoffrey Smith,Thomas E. Smith,Paul Souder,D. T. Spayde,B. E. Stokes,Riad Suleiman,V. Tadevosyan,Evgeni Tsentalovich,W. T. H. van Oers,W. F. Vulcan,P. Wang,S. Wells,S. A. Wood,S. Yang,Ross D. Young,H. Zhu,Carl Zorn +85 more
TL;DR: In this article, a new precision measurement of parity-violating electron scattering on the proton at very low Q^2 and forward angles was proposed to challenge predictions of the Standard Model and search for new physics.
Journal ArticleDOI
Charge-symmetry breaking in np elastic scattering at 477 MeV.
R. Abegg,Bandyopadhyay D,J. Birchall,E. B. Cairns,G.H. Coombes,C. A. Davis,Davison Ne,P. P. J. Delheij,P. W. Green,L.G. Greeniaus,H.P. Gubler,Healey Dc,Lapointe C,W.P. Lee,W.J. McDonald,C. A. Miller,G.A. Moss,G.R. Plattner,P.R. Poffenberger,W. D. Ramsay,G. Roy,J. Soukup,J.P. Svenne,R. Tkachuk,van Oers Wt,G.D. Wait,Y.P. Zhang +26 more
Journal ArticleDOI
Transverse beam spin asymmetries at backward angles in elastic electron-proton and quasielastic electron-deuteron scattering.
Darko Androić,D. S. Armstrong,J. Arvieux,S. L. Bailey,Douglas H Beck,E. J. Beise,Jay Benesch,Fatiha Benmokhtar,Fatiha Benmokhtar,L. Bimbot,J. Birchall,P. Bosted,H. Breuer,C. L. Capuano,Y. C. Chao,A. Coppens,C. A. Davis,C. Ellis,G. Flores,G. B. Franklin,Christophe Furget,D. Gaskell,Michael Gericke,J. Grames,G. Guillard,J. Hansknecht,T. Horn,M. K. Jones,P. M. King,Wolfgang Korsch,S. Kox,L. Lee,Junyu Liu,A. Lung,Juliette Mammei,J. W. Martin,R. D. McKeown,A. Micherdzinska,M. Mihovilovič,H. Mkrtchyan,M. Muether,S. A. Page,V. Papavassiliou,S. F. Pate,S. K. Phillips,P. Pillot,Michael Pitt,M. Poelker,B. P. Quinn,W. D. Ramsay,J. S. Real,J. Roche,P. G. Roos,J. Schaub,T. Seva,Neven Simicevic,G. R. Smith,D. T. Spayde,M. Stutzman,R. Suleiman,R. Suleiman,V. Tadevosyan,W. T. H. van Oers,M. Versteegen,E. Voutier,W. F. Vulcan,S. Wells,S. E. Williamson,S. A. Wood,B. Pasquini,Marc Vanderhaeghen +70 more
TL;DR: The beam-normal single-spin asymmetries in elastic scattering of transversely polarized electrons from the proton are measured and the first measurement in quasielastic scattering on the deuteron is performed.