A
Avraham Klein
Researcher at University of Minnesota
Publications - 221
Citations - 9436
Avraham Klein is an academic researcher from University of Minnesota. The author has contributed to research in topics: Nucleon & Proton. The author has an hindex of 51, co-authored 217 publications receiving 8619 citations. Previous affiliations of Avraham Klein include Kyungpook National University & Los Alamos National Laboratory.
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Journal ArticleDOI
The CEBAF large acceptance spectrometer (CLAS)
Bernhard Mecking,G. S. Adams,S. Ahmad,E. Anciant,M. Anghinolfi,B. Asavapibhop,G. Asryan,G. Audit,Thierry Auger,H. Avakian,J. P. Ball,F. Barbosa,S. Barrow,M. Battaglieri,K. Beard,K. Beard,B. L. Berman,N. Bianchi,S. Boiarinov,P. Bonneau,W. J. Briscoe,W. K. Brooks,Volker D. Burkert,Daniel S. Carman,T. Carstens,C. Cetina,S.B. Christo,Philip L. Cole,Philip L. Cole,A. Coleman,J. Connelly,D. Cords,P. Corvisiero,D. G. Crabb,Hall Crannell,R.C. Cuevas,P. V. Degtyarenko,L.C. Dennis,E. DeSanctis,R. DeVita,J. Distelbrink,G. E. Dodge,W. R. Dodge,G. Doolittle,D. Doughty,D. Doughty,Michael Dugger,W.S. Duncan,S. A. Dytman,H. Egiyan,K. S. Egiyan,L. Elouadrhiri,L. Elouadrhiri,R. J. Feuerbach,J. Ficenec,V. Frolov,H. O. Funsten,Gerard Gilfoyle,K. L. Giovanetti,E. Golovatch,J. Gram,M. Guidal,V. Gyurjyan,V. Gyurjyan,D. Heddle,D. Heddle,P. Hemler,F. W. Hersman,K.H. Hicks,R. S. Hicks,M. Holtrop,C. E. Hyde-Wright,D. Insley,M. M. Ito,G. Jacobs,David Jenkins,K. Joo,D. Joyce,D. Kashy,M. Khandaker,W. Kim,Avraham Klein,Friedrich Klein,Friedrich Klein,Friedrich Klein,M. Klusman,M. Kossov,Laird Kramer,V. Koubarovski,S. E. Kuhn,A. Lake,D. Lawrence,D. Lawrence,A. Longhi,K. Lukashin,K. Lukashin,K. Lukashin,J. Lachniet,R. Magahiz,W. Major,J. J. Manak,C. Marchand,C. Martin,S. K. Matthews,M. McMullen,J. W C McNabb,M. D. Mestayer,R. C. Minehart,M. Mirazita,R. Miskimen,V. Muccifora,James Mueller,L. Y. Murphy,G. S. Mutchler,Jim Napolitano,I. Niculescu,B. B. Niczyporuk,M. Nozar,John T. O'Brien,A. K. Opper,J.E. O'Meara,E. Pasyuk,S. A. Philips,E. Polli,J. W. Price,J. W. Price,S. Pozdniakov,L. M. Qin,B. A. Raue,B. A. Raue,G. Riccardi,G. Ricco,C. Riggs,M. Ripani,Barry Ritchie,J. Robb,Federico Ronchetti,P. Rossi,F. Roudot,C. Salgado,V. Sapunenko,R. A. Schumacher,V. S. Serov,Y. G. Sharabian,Y. G. Sharabian,Elton Smith,L. C. Smith,Thomas E. Smith,D. I. Sober,A.V. Stavinsky,S. Stepanyan,P. Stoler,M. Taiuti,W.M. Taylor,S. Taylor,D. J. Tedeschi,D. J. Tedeschi,U. Thoma,Roy Thompson,D. Tilles,L. Todor,T.Y. Tung,W. Tuzel,Michael Vineyard,A. V. Vlassov,Larry Weinstein,Robert E. Welsh,Robert E. Welsh,D. P. Weygand,G.R. Wilkin,M. Witkowski,E. Wolin,A. Yegneswaran,P.F. Yergin,J. Yun +174 more
TL;DR: The CEBAF Large Acceptance Spectrometer (CLAS) as mentioned in this paper is used to study photo-and electro-induced nuclear and hadronic reactions by providing efficient detection of neutral and charged particles over a good fraction of the full solid angle.
Journal ArticleDOI
Observation of an Exotic S = +1 Baryon in Exclusive Photoproduction from the Deuteron
S. Stepanyan,S. Stepanyan,K. Hicks,Daniel S. Carman,E. Pasyuk,R. A. Schumacher,Elton Smith,D. J. Tedeschi,L. Todor,G. S. Adams,P. Ambrozewicz,E. Anciant,M. Anghinolfi,B. Asavapibhop,G. Audit,H. Avakian,H. Bagdasaryan,J. P. Ball,S. Barrow,M. Battaglieri,K. Beard,M. Bektasoglu,M. Bektasoglu,M. Bellis,B. L. Berman,Nicola Bianchi,A. S. Biselli,S. Boiarinov,Sylvain Bouchigny,R. Bradford,D. Branford,W. J. Briscoe,W. K. Brooks,Volker D. Burkert,C. Butuceanu,J. R. Calarco,B. Carnahan,Shifeng Chen,L. Ciciani,P. L. Cole,A. Coleman,D. Cords,P. Corvisiero,D. G. Crabb,Hall Crannell,J. P. Cummings,E. De Sanctis,P. V. Degtyarenko,H. Denizli,L.C. Dennis,R. De Vita,K. V. Dharmawardane,Kalvir S. Dhuga,C. Djalali,G. E. Dodge,D. Doughty,D. Doughty,P. Dragovitsch,Michael Dugger,S. A. Dytman,O. P. Dzyubak,Hovanes Egiyan,K. S. Egiyan,Latifa Elouadrhiri,A. Empl,P. Eugenio,R. Fatemi,R. J. Feuerbach,J. Ficenec,T. A. Forest,H. O. Funsten,M. Garçon,G. Gavalian,Gerard Gilfoyle,K. L. Giovanetti,C. I O Gordon,R. W. Gothe,K. A. Griffioen,M. Guidal,M. Guillo,L. Guo,V. Gyurjyan,Cynthia Marie Hadjidakis,R. S. Hakobyan,J. Hardie,J. Hardie,D. Heddle,D. Heddle,P. Heimberg,F. W. Hersman,R. S. Hicks,M. Holtrop,J. Hu,C. E. Hyde-Wright,M. M. Ito,D. G. Jenkins,K. Joo,H. G. Juengst,J. D. Kellie,M. Khandaker,K. Y. Kim,K. Kim,W. Kim,Avraham Klein,Friedrich Klein,Friedrich Klein,Alexei V. Klimenko,M. Klusman,M. Kossov,Laird Kramer,Laird Kramer,Y. Kuang,V. P. Kubarovsky,S. E. Kuhn,J. Kuhn,J. Lachniet,D. Lawrence,Ji Li,A. C S Lima,K. Livingston,K. Lukashin,J. J. Manak,S. McAleer,J. W C McNabb,Bernhard Mecking,S. Mehrabyan,J. J. Melone,M. D. Mestayer,C. A. Meyer,K. Mikhailov,R. C. Minehart,M. Mirazita,R. A. Miskimen,V. Mokeev,L. Morand,S. A. Morrow,Valeria Muccifora,James Mueller,L. Y. Murphy,G. S. Mutchler,J. Napolitano,Rakhsha Nasseripour,S. Niccolai,G. Niculescu,I. Niculescu,B. B. Niczyporuk,R. A. Niyazov,M. Nozar,M. Nozar,John T. O'Brien,G. V. O'Rielly,A. K. Opper,M. Osipenko,K. Park,G. A. Peterson,S. A. Philips,N. Pivnyuk,Dinko Pocanic,O. Pogorelko,E. Polli,S. Pozdniakov,B. M. Preedom,J. W. Price,Y. Prok,D. Protopopescu,L. M. Qin,Brian Raue,Brian Raue,G. Riccardi,G. Ricco,M. Ripani,Barry Ritchie,Federico Ronchetti,P. Rossi,D. Rowntree,P. D. Rubin,F. Sabatié,C. Salgado,J. P. Santoro,J. P. Santoro,V. Sapunenko,V. S. Serov,Y. G. Sharabian,J. Shaw,S. Simionatto,A. V. Skabelin,L. C. Smith,D. I. Sober,I. I. Strakovsky,A.V. Stavinsky,P. Stoler,R. Suleiman,M. Taiuti,Stephen Taylor,U. Thoma,Roy Thompson,C. Tur,M. Ungaro,Michael Vineyard,A. V. Vlassov,K. Wang,Larry Weinstein,H. R. Weller,D. P. Weygand,C. S. Whisnant,E. Wolin,Michael Wood,A. Yegneswaran,J. Yun +208 more
TL;DR: In an exclusive measurement of the reaction gammad-->K(+)K(-)pn, a narrow peak that can be attributed to an exotic baryon with strangeness S=+1 is seen in the K(+)n invariant mass spectrum.
Journal ArticleDOI
Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2
Koji Abe,T. Akagi,P.L. Anthony,R. Antonov,R. G. Arnold,T. Averett,T. Averett,H. R. Band,J. M. Bauer,J. M. Bauer,H. Borel,P. E. Bosted,Vincent Breton,J. Button-Shafer,J. P. Chen,J. P. Chen,Timothy Chupp,J. Clendenin,C. Comptour,K. P. Coulter,G. Court,G. Court,D. Crabb,M. Daoudi,Donal Day,F. S. Dietrich,J. A. Dunne,J. A. Dunne,H. Dutz,H. Dutz,R. Erbacher,J. Fellbaum,A. Feltham,H. Fonvieille,Emil Frlez,D. Garvey,R. Gearhart,J. Gomez,P. Grenier,K. A. Griffioen,K. A. Griffioen,S. Hoibraten,E. W. Hughes,E. W. Hughes,Ch. Hyde-Wright,J. R. Johnson,D. Kawall,Avraham Klein,S. E. Kuhn,M. Kuriki,R. A. Lindgren,T. J. Liu,R. M. Lombard-Nelsen,J. Marroncle,T. Maruyama,X.K. Maruyama,J. S. McCarthy,W. Meyer,W. Meyer,Z. E. Meziani,Z. E. Meziani,R. C. Minehart,John C. Mitchell,J. Morgenstern,G. G. Petratos,G. G. Petratos,R. Pitthan,Dinko Pocanic,C. Y. Prescott,R. Prepost,P. Raines,B. Raue,B. Raue,D. Reyna,A. Rijllart,A. Rijllart,Y. Roblin,L. S. Rochester,S. E. Rock,O. Rondon,Ingo Sick,L. C. Smith,Timothy B. Smith,M. Spengos,M. Spengos,F. Staley,Pascal Steiner,S.St. Lorant,L. M. Stuart,F. Suekane,Z. M. Szalata,H. Tang,Y. Terrien,T. L. Usher,D. Walz,F.R. Wesselmann,James L. White,James L. White,K. Witte,C. C. Young,B. Youngman,H. Yuta,G. H. Zapalac,B. Zihlmann,D. Zimmermann +104 more
TL;DR: In this paper, the authors reported measurements of the proton and deuteron spin structure functions at beam energies of 29.1, 16.2, and 9.7 GeV.
Journal ArticleDOI
Observation of exclusive deeply virtual Compton scattering in polarized electron beam asymmetry measurements
S. Stepanyan,S. Stepanyan,S. Barrow,J. R. Calarco,A. Empl,M. M. Ito,L. C. Smith,S. Pozdniakov,Michael Vineyard,G. Ricco,J. S. McCarthy,W.J. Briscoe,R. Fatemi,S. A. Dytman,P. Rossi,R. Suleiman,G. Niculescu,H. R. Weller,L. Yanik,E. De Sanctis,J. Yun,K. Joo,Roy Thompson,G. S. Mutchler,C. Marchand,Gerard Gilfoyle,R. S. Hicks,D. Heddle,A. Yegneswaran,C. Cetina,K. Mikhailov,S. Simionatto,Z. L. Zhou,L. Elouadrhiri,L. Ciciani,M. Bektasoglu,J. Ficenec,M. Battaglieri,A. V. Skabelin,N. Pivnyuk,D. Dore,A.V. Stavinsky,A.R. Reolon,Kevin Fissum,P. Heimberg,Daniel S. Carman,Jim Napolitano,D. J. Tedeschi,Cynthia Marie Hadjidakis,G. S. Adams,V. Muccifora,Daijin Kim,D. Lawrence,F. W. Hersman,S. O. Nelson,E. Wolin,E. Pasyuk,S. J. Gaff,M. Klusman,G. Gavalian,P. D. Rubin,B. A. Raue,B. M. Preedom,H. Egiyan,Patrick Girard,A. P. Freyberger,C. Djalali,Laird Kramer,L. Murphy,J. Hardie,M. Holtrop,Larry Weinstein,H. Funsten,G. Audit,David A. Jenkins,L. Morand,H. Denizli,L. Todor,M. Mirazita,K. A. Griffioen,B. Asavapibhop,K.H. Hicks,S. E. Kuhn,K. S. Dhuga,K. S. Egiyan,J. P. Cummings,Bernhard Mecking,D. Rowntree,M. Eckhause,Pavel Degtiarenko,L. M. Qin,F. Sabatié,J. W C McNabb,R. De Vita,V. Gyurjyan,K. Y. Kim,P. Corvisiero,R. Miskimen,B. E. Bonner,Friedrich Klein,R. A. Niyazov,Jing Zhao,John T. O'Brien,S. Boiarinov,W. Kim,R. C. Minehart,M. Garçon,H. Avakian,K. V. Dharmawardane,V. S. Serov,Volker D. Burkert,I. Niculescu,Shalev Gilad,D. P. Weygand,D. G. Crabb,A. S. Biselli,Sylvain Bouchigny,J. P. Ball,R. A. Schumacher,J. M. Laget,Thierry Auger,M. Anghinolfi,L. C. Maximon,Baile Zhang,A. Shafi,G. A. Peterson,F. Ronchetti,D. Doughty,G. V. O'Rielly,Yu.G. Sharabian,Hall Crannell,L. C. Dennis,C. Salgado,Dinko Pocanic,I. Popa,E. Polli,B.L. Berman,J. W. Price,M. Taiuti,P. Stoler,Avraham Klein,S. Whisnant,K. Sabourov,James Mueller,Charles Hyde,S. A. Philips,K. Lukashin,Robert E. Welsh,A. Longhi,P.Y. Bertin,D. Protopopescu,Barry Ritchie,D. Cords,K. Wang,K. L. Giovanetti,R. J. Feuerbach,S. Taylor,C. A. Meyer,Elton Smith,M. Khandaker,B. Carnahan,Mestayer,M. Guillo,O. Pogorelko,A. V. Vlassov,G. Feldman,Philip L. Cole,D. Branford,J. Shaw,G. E. Dodge,E. Anciant,K. Park,K. Kim,J. H. Kelley,S. Niccolai,J. Hu,W. K. Brooks,G. Riccardi,Moshe Gai,Igor Strakovsky,Nicola Bianchi,P. Dragovitsch,J. J. Manak,M. Kossov,K. Beard,V. Sapunenko,S. McAleer,A. Coleman,A. K. Opper,T. A. Forest,D. I. Sober,M. Ripani,M. Guidal +192 more
TL;DR: The first results of the beam spin asymmetry measured in the reaction e + p -> e+ p + p + gamma at a beam energy of 4.25 GeV were reported in this paper.
Journal ArticleDOI
Precision measurement of the proton spin structure function g1p
Koji Abe,T. Akagi,P.L. Anthony,R. Antonov,R. G. Arnold,T. Averett,H. R. Band,J. M. Bauer,H. Borel,P. E. Bosted,Vincent Breton,J. Button-Shafer,J. P. Chen,Timothy Chupp,J. Clendenin,C. Comptour,K. P. Coulter,G.R. Court,D. Crabb,M. Daoudi,Donal Day,F. S. Dietrich,J. A. Dunne,H. Dutz,R. Erbacher,J. Fellbaum,A. Feltham,H. Fonvieille,Emil Frlez,D. Garvey,R. Gearhart,J. Gomez,P. Grenier,K. A. Griffioen,K. A. Griffioen,S. Hoibraten,E. W. Hughes,Ch. Hyde-Wright,J. R. Johnson,D. Kawall,Avraham Klein,S. E. Kuhn,M. Kuriki,R. A. Lindgren,T. J. Liu,R. M. Lombard-Nelsen,J. Marroncle,T. Maruyama,X.K. Maruyama,J. S. McCarthy,W. Meyer,Z. E. Meziani,Z. E. Meziani,R. C. Minehart,John C. Mitchell,J. Morgenstern,G. G. Petratos,G. G. Petratos,R. Pitthan,Dinko Pocanic,C. Y. Prescott,R. Prepost,P. Raines,B. Raue,D. Reyna,A. Rijllart,A. Rijllart,Y. Roblin,L. S. Rochester,S. E. Rock,O. Rondon,Ingo Sick,L. C. Smith,Timothy B. Smith,M. Spengos,F. Staley,Pascal Steiner,S.St. Lorant,L. M. Stuart,F. Suekane,Z. M. Szalata,H. Tang,Y. Terrien,T. L. Usher,D. Walz,J. L. White,K. Witte,C. C. Young,B. Youngman,H. Yuta,G. H. Zapalac,B. Zihlmann,D. Zimmermann +92 more
TL;DR: In this article, the authors measured the ratio [ital g][sup [ital p]][sub 1]/[ital F][sup[ital p]-sub 1]-over the range 0.8 and 1.10 using deep-inelastic scattering of polarized electrons from polarized ammonia.