M
M. Poelker
Researcher at Thomas Jefferson National Accelerator Facility
Publications - 58
Citations - 996
M. Poelker is an academic researcher from Thomas Jefferson National Accelerator Facility. The author has contributed to research in topics: Beam (structure) & Photocathode. The author has an hindex of 14, co-authored 44 publications receiving 841 citations.
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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.
Journal ArticleDOI
Precision measurement of the weak charge of the proton
Darko Androić,M. H. Shabestari,B. Sawatzky,K. Bartlett,J. F. Dowd,L. Lee,S. Zhamkochyan,D. Gaskell,T. Averett,V. Tvaskis,B. Waidyawansa,M. Poelker,Dipangkar Dutta,V. M. Gray,A. Micherdzinska,A. Asaturyan,Nuruzzaman,Joseph Grames,J. Leacock,Neven Simicevic,P. Wang,J. Leckey,Jongmin Lee,J. A. Dunne,P. Solvignon,Jay Benesch,Riad Suleiman,A. Mkrtchyan,Kent Paschke,M. M. Dalton,Matthew Jones,D. G. Meekins,D. T. Spayde,J. C. Cornejo,P. Zang,Michael Pitt,C. Gal,William A. Tobias,P. M. King,M. Kargiantoulakis,H. Mkrtchyan,S. MacEwan,W. R. Falk,S. A. Wood,R. S. Beminiwattha,J. Birchall,R. Subedi,Fatiha Benmokhtar,A. R. Lee,S. A. Page,John M. Finn,V. Tadevosyan,M. J. McHugh,D. C. Jones,Ross D. Young,H. Nuhait,N. Morgan,R. Silwal,D. J. Mack,Jonathan W. Martin,R. W. L. Jones,Jean-Francois Rajotte,W. D. Ramsay,C. A. Davis,W. S. Duvall,Wouter Deconinck,M. Elaasar,J. Roche,E. Korkmaz,R. Michaels,Juliette Mammei,R. D. Carlini,A. K. Opper,R. Mahurin,S. Covrig Dusa,W. T. H. van Oers,J. Beaufait,F. Guo,Kathryn Grimm,Amrendra Narayan,A. Subedi,Geoffrey Smith,K. E. Mesick,S. K. Phillips,J. Pan,J. R. Hoskins,Michael Gericke,J. Diefenbach,J. Mei,S. P. Wells,J. A. Magee,Vladimir Nelyubin,T. Seva,T. A. Forest,S. Yang,J. Balewski,L. Z. Ndukum,S. Kowalski,D. S. Armstrong +98 more
TL;DR: The results show that precision parity-violating measurements enable searches for physics beyond the standard model that can compete with direct searches at high-energy accelerators and, together with astronomical observations, can provide fertile approaches to probing higher mass scales.
Posted Content
Science Requirements and Conceptual Design for a Polarized Medium Energy Electron-Ion Collider at Jefferson Lab
S. Abeyratne,Haipeng Wang,Alberto Accardi,Friedrich Klein,M. Pivi,Frank Marhauser,Yuhong Zhang,Vadim Guzey,Ya. S. Derbenev,Pavel Evtushenko,Vasiliy Morozov,A. Hutton,D. Gaskell,Todd Satogata,Rolland Johnson,R. Geng,Rolf Ent,M. K. Sullivan,Rui Li,Pawel Nadel-Turonski,Balsa Terzic,Chris Tennant,Fulvia Pilat,S. Corneliussen,H.K. Sayed,Alejandro Castilla,Jean Delayen,S. DeSilva,Shaoheng Wang,Pavel Degtiarenko,Yu. Filatov,M. Poelker,David Douglas,Vadim Dudnikov,M. Kondratenko,Tanja Horn,Y. Kim,M. Tiefenback,S. Manikonda,Peter Ostroumov,Robert Rimmer,Bela Erdelyi,Wouter Deconinck,C. E. Hyde,A. Prokudin,A. Bogacz,Christian Weiss,Edith Nissen,Anatoliy Kondratenko,P. Chevtsov,M. Spata,D. Barber,Robert McKeown,S. Ahmed,Fanglei Lin,Byung Yunn,Joseph Bisognano,Geoffrey Krafft +57 more
TL;DR: The medium energy polarized electron-ion collider (MEIC) as discussed by the authors was proposed by the US Department of Energy and the National Science Foundation in the form of a half-recommendation.
Journal ArticleDOI
Load-locked dc high voltage GaAs photogun with an inverted-geometry ceramic insulator
Philip Adderley,J. Clark,Joseph Grames,J. Hansknecht,K. Surles-Law,D. Machie,M. Poelker,Marcy Stutzman,Riad Suleiman +8 more
TL;DR: In this paper, a spin-polarized photoelectron gun was constructed that employs a compact inverted-geometry ceramic insulator for dc high voltage spinpolarization.