C
C. E. Keppel
Researcher at Hampton University
Publications - 194
Citations - 6840
C. E. Keppel is an academic researcher from Hampton University. The author has contributed to research in topics: Nucleon & Scattering. The author has an hindex of 44, co-authored 160 publications receiving 5785 citations. Previous affiliations of C. E. Keppel include United States Department of Energy & Thomas Jefferson National Accelerator Facility.
Papers
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Journal ArticleDOI
Determination of the neutron spin structure function.
P.L. Anthony,R. G. Arnold,H. R. Band,H. Borel,P. E. Bosted,Vincent Breton,Gordon D. Cates,Timothy Chupp,F. S. Dietrich,J. A. Dunne,R. Erbacher,J. Fellbaum,H. Fonvieille,R. A. Gearhart,R. Holmes,E. W. Hughes,J.R. Johnson,D. Kawall,C. E. Keppel,S. E. Kuhn,R. M. Lombard-Nelsen,J. Marroncle,T. Maruyama,W. Meyer,Z. E. Meziani,H. Middleton,J. Morgenstern,Nathan R. Newbury,G. G. Petratos,R. Pitthan,R. Prepost,Y. Roblin,S. E. Rock,Sayed Rokni,Gilbert Shapiro,Thomas E. Smith,Paul Souder,M. Spengos,F. Staley,L. M. Stuart,Z. M. Szalata,Y. Terrien,Alan K. Thompson,James L. White,M. Woods,J. Xu,C. C. Young,G. H. Zapalac +47 more
TL;DR: The authors report the results of the experiment E142 which measured the spin dependent structure function of the neutron, which confirms the fundamental Bjorken sum rule with O({alpha}{sub s}{sup 3}) corrections to within one standard deviation, a major success for perturbative Quantum Chromodynamics.
Posted Content
Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report
R. Abdul Khalek,Alberto Accardi,Jaroslav Adam,D. Adamiak,W. Akers,Miguel Albaladejo,A. Al-bataineh,M.G. Alexeev,F. Ameli,Pietro Antonioli,Néstor Armesto,Whitney Armstrong,Miguel Arratia,J. Arrington,A. Asaturyan,M. Asai,E. C. Aschenauer,S. Aune,H. Avagyan,C. Ayerbe Gayoso,B. Azmoun,Alessandro Bacchetta,M. D. Baker,Francisco Geraldo Barbosa,L. Barion,K. N. Barish,Patrick Barry,M. Battaglieri,A. Bazilevsky,N. K. Behera,Fatiha Benmokhtar,V. V. Berdnikov,Jan C. Bernauer,V. Bertone,S. Bhattacharya,C. Bissolotti,Daniël Boer,Mariaelena Boglione,M. Bondì,P. Boora,Ignacio Borsa,F. Bossu,Giuseppe Bozzi,James Brandenburg,N. Brei,Andrea Bressan,William Brooks,S. Bufalino,Masroor H. S. Bukhari,Volker D. Burkert,N. H. Buttimore,Alexandre Camsonne,A. Celentano,Francesco Giovanni Celiberto,W. Chang,C. Chatterjee,K. Chen,T. Chetry,T. Chiarusi,Y. T. Chien,M. Chiosso,X. Chu,E. Chudakov,G. Cicala,E. Cisbani,Ian C. Cloët,C. Cocuzza,P. L. Cole,D. Colella,J. Collins,Martha Constantinou,M. Contalbrigo,Giacomo Contin,R. Corliss,Wim Cosyn,Aurore Courtoy,J. Crafts,R. Cruz-Torres,R. C. Cuevas,Umberto D'Alesio,S. Dalla Torre,D. Das,S.S. Dasgupta,C. L. Da Silva,Wouter Deconinck,Maxime Defurne,W. DeGraw,K. Dehmelt,A. Del Dotto,Filippo Delcarro,Abhay Deshpande,W. Detmold,R. De Vita,Markus Diefenthaler,C. Dilks,D. U. Dixit,Sayipjamal Dulat,Adrian Dumitru,R. Dupre,J. M. Durham,Miguel G. Echevarria,L. El Fassi,D. Elia,Rolf Ent,Roli Esha,Jacob J. Ethier,Olga Evdokimov,K. O. Eyser,C. Fanelli,R. Fatemi,S. Fazio,César Fernández-Ramírez,M. Finger,D. Fitzgerald,Carlo Flore,Tobias Frederico,Ivica Friščić,S. Fucini,Sergey Furletov,Yulia Furletova,C. Gal,Leonard Gamberg,H. Gao,P. Garg,D. Gaskell,K. Gates,Michael Gericke,Gustavo Gil Da Silveira,F. X. Girod,D. I. Glazier,Kondo Gnanvo,Victor P. Goncalves,L. Gonella,J. O. Gonzalez Hernandez,Y. Goto,F. Grancagnolo,Leo Clifford Greiner,W. Guryn,V. Guzey,Yoshitaka Hatta,M. Hattawy,F. Hauenstein,X. He,T. K. Hemmick,Or Hen,G. Heyes,Douglas Higinbotham,A. N. Hiller Blin,Timothy Hobbs,Marcus Hohlmann,Tanja Horn,T. J. Hou,J. Huang,Q. Huang,G. M. Huber,C. E. Hyde,G. Iakovidis,Yordanka Ilieva,B. V. Jacak,Peter Martin Jacobs,M. Jadhav,Z. Janoska,Alexander Jentsch,T. Jezo,X. Jing,P. G. Jones,K. Joo,S. Joosten,V. Kafka,N. Kalantarians,G. Kalicy,D. Kang,Zhong-Bo Kang,K. Kauder,S. Kay,C. E. Keppel,J. Kim,Alexander Kiselev,Michael Klasen,S. R. Klein,H. T. Klest,O. Korchak,A. Kostina,P. Kotko,Yuri V. Kovchegov,M. Krelina,Sergey Kuleshov,S. Kumano,K. S. Kumar,Ramandeep Kumar,Lokesh Kumar,Krešimir Kumerički,Aleksander Kusina,Krzysztof Kutak,Y. S. Lai,K. Lalwani,Tuomas Lappi,J. Lauret,M. Lavinsky,D. Lawrence,D. Lednicky,C. Lee,Kyle Lee,S. H. Lee,S. Levorato,H. Li,S. Li,W. Li,X. Li,W. B. Li,T. Ligonzo,H. Liu,M. X. Liu,Xiaohui Liu,Simonetta Liuti,Nilanga Liyanage,Cédric Lorcé,Z. Lu,Gonzalo Lucero,N. S. Lukow,E. Lunghi,R. D. Majka,Yiannis Makris,I. Mandjavidze,Sonny Mantry,Heikki Mäntysaari,Frank Marhauser,Pete Markowitz,L. Marsicano,A. Mastroserio,Vincent Mathieu,Yacine Mehtar-Tani,Wolodymyr Melnitchouk,Leticia Cunqueiro Mendez,Andreas Metz,Z. E. Meziani,C. Mezrag,M. Mihovilovic,Ross Milner,M. Mirazita,H. Mkrtchyan,A. Mkrtchyan,V. V. Mochalov,V. Moiseev,M. M. Mondal,A. Morreale,D. P. Morrison,L. Motyka,H. Moutarde,C. Munoz Camacho,Francesco Murgia,Michael Murray,P. Musico,Pawel Nadel-Turonski,Pavel M. Nadolsky,J. Nam,Paul Newman,D. Neyret,D. Nguyen,Emanuele R. Nocera,F. Noferini,F. Noto,A. S. Nunes,Vitaly Okorokov,F. I. Olness,J. D. Osborn,B. S. Page,S. Park,Ashley Parker,Kent Paschke,B. Pasquini,Hannu Paukkunen,S. Paul,C. Pecar,Ian L. Pegg,C. Pellegrino,C. Peng,Lubomir Pentchev,Roberto Perrino,F. Petriello,R. J. Petti,Alessandro Pilloni,C. Pinkenburg,Bernard Pire,Cristian Pisano,Daniel Pitonyak,A. A. Poblaguev,Tomas Polakovic,M. Posik,M. Potekhin,R. Preghenella,S. Preins,A. Prokudin,Prabhat Ranjan Pujahari,Martin Purschke,J.R. Pybus,Marco Radici,Renuka Rajput-Ghoshal,P. E. Reimer,Matteo Rinaldi,Felix Ringer,Craig D. Roberts,S. Rodini,Juan Rojo,D. Romanov,P. Rossi,Elena Santopinto,M. Sarsour,R. Sassot,N. Sato,Björn Schenke,W. B. Schmidke,I. Schmidt,Alexander Schmidt,B. Schmookler,G. Schnell,Peter Schweitzer,J. Schwiening,Ignazio Scimemi,Sergio Scopetta,Jorge Segovia,R. Seidl,Stephen Sekula,K. Semenov-Tian-Shanskiy,D. Y. Shao,N. Sherrill,E. P. Sichtermann,M. Siddikov,Andrea Signori,Brajesh K. Singh,Simon Širca,Karl Slifer,W. Slominski,D. Sokhan,W. E. Sondheim,Y. Song,O. Soto,Hubert Spiesberger,A. Stasto,P. Stepanov,George Sterman,J. R. Stevens,Iain W. Stewart,I. I. Strakovsky,Mark Strikman,M. Sturm,M. Stutzman,M. K. Sullivan,Bernd Surrow,P. Svihra,S. Syritsyn,Adam P. Szczepaniak,P. Sznajder,H. Szumila-Vance,L. Szymanowski,A. S. Tadepalli,J. D. Tapia Takaki,G. Tassielli,John Terry,F. Tessarotto,Kemal Tezgin,L. Tomášek,F. Torales Acosta,Prithwish Tribedy,A. Tricoli,Triloki,S. Tripathi,Richard Trotta,O. D. Tsai,Z. Tu,Cristina Tuve,T. Ullrich,M. Ungaro,G. M. Urciuoli,A. Valentini,P. Vancura,M. Vandenbroucke,C. B. Van Hulse,G. Varner,Raju Venugopalan,Ivan Vitev,Aleksey Vladimirov,G. Volpe,A. Vossen,E. Voutier,Jakub Wagner,S. Wallon,H. Wang,Q. Wang,X. Wang,S. Y. Wei,Christian Weiss,T. Wenaus,H. Wennlöf,N. Wickramaarachchi,A. Wikramanayake,D. Winney,C. P. Wong,C. L. Woody,L. Xia,Bo-Wen Xiao,J. Xie,H. Xing,Q. H. Xu,Jie Zhang,S. Zhang,Z. Zhang,Z. W. Zhao,Y. X. Zhao,L. Zheng,Y. Zhou,Pia Zurita +411 more
TL;DR: The physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider are described, providing the basis for a world-class experimental program that aims to increase the understanding of the fundamental structure of all visible matter.
Journal ArticleDOI
Precision Rosenbluth measurement of the proton elastic form factors.
I. A. Qattan,John Arrington,R. E. Segel,X. Zheng,K. A. Aniol,Oliver Keith Baker,Ryan Beams,E. J. Brash,J. R. Calarco,Alexandre Camsonne,Jian-Ping Chen,M. E. Christy,Dipangkar Dutta,Rolf Ent,S. Frullani,D. Gaskell,Olivier Gayou,Ronald Gilman,C. Glashausser,K. Hafidi,J.-O. Hansen,Douglas Higinbotham,W. Hinton,R. J. Holt,G. M. Huber,H. F. Ibrahim,L. Jisonna,M. K. Jones,C. E. Keppel,E. R. Kinney,G. J. Kumbartzki,A. F. Lung,D. J. Margaziotis,K. McCormick,D. G. Meekins,R. Michaels,P. Monaghan,P. Moussiegt,Lubomir Pentchev,C. F. Perdrisat,V. A. Punjabi,Ronald Ransome,J. Reinhold,B. Reitz,Arijit Saha,A. J. Sarty,E. Schulte,Karl Slifer,P. Solvignon,V. Sulkosky,K. Wijesooriya,B. Zeidman +51 more
TL;DR: A new Rosenbluth measurement of the proton electromagnetic form factors at Q2 values of 2.64, 3.20, and 4.10 GeV2 is reported, consistent with, and much more precise than, previous Rosen Bluth extractions, but inconsistent with recent polarization transfer measurements of similar precision.
Journal ArticleDOI
Recoil Polarization Measurements of the Proton Electromagnetic Form Factor Ratio to Q^2 = 8.5 GeV^2
A. J. R. Puckett,E. J. Brash,E. J. Brash,M. K. Jones,W. Luo,M. Meziane,L. Pentchev,C. F. Perdrisat,V. A. Punjabi,F. R. Wesselmann,A. Ahmidouch,I. Albayrak,K. A. Aniol,John Arrington,A. Asaturyan,H. Baghdasaryan,Fatiha Benmokhtar,William Bertozzi,L. Bimbot,P. Bosted,W. U. Boeglin,C. Butuceanu,P. Carter,S. P. Chernenko,E. Christy,M. Commisso,J. C. Cornejo,S. Covrig,S. Danagoulian,A. Daniel,A. Davidenko,Donal Day,S. Dhamija,Dipangkar Dutta,Rolf Ent,S. Frullani,H. C. Fenker,Emil Frlez,F. Garibaldi,D. Gaskell,Shalev Gilad,Ronald Gilman,Y. Goncharenko,K. Hafidi,David Hamilton,Douglas Higinbotham,W. Hinton,T. Horn,B. Hu,J. Huang,G. M. Huber,E. Jensen,C. E. Keppel,M. Khandaker,P. M. King,D. Kirillov,Michael Kohl,V. Kravtsov,G. Kumbartzki,Y. Li,V. Mamyan,D. J. Margaziotis,A. Marsh,Y. Matulenko,James Maxwell,G. Mbianda,D. G. Meekins,Yu.M. Mel'nik,James A. Miller,A. Mkrtchyan,H. Mkrtchyan,B. Moffit,O. Moreno,J. Mulholland,Amrendra Narayan,S. Nedev,Nuruzzaman,E. Piasetzky,W. Pierce,N. M. Piskunov,Y. Prok,Ronald Ransome,D. S. Razin,P. E. Reimer,J. Reinhold,O. Rondon,M. H. Shabestari,A. Shahinyan,K. Shestermanov,Simon Širca,I. Sitnik,L. Smykov,G. R. Smith,L. Solovyev,P. Solvignon,R. Subedi,E. Tomasi-Gustafsson,Andrey Vasiliev,M. Veilleux,Bogdan Wojtsekhowski,S. A. Wood,Z. Ye,Yu.V. Zanevsky,X. Zhang,Y. Zhang,X. Zheng,L. Zhu +106 more
TL;DR: New measurements of the proton electromagnetic form factor ratio using the recoil polarization method are reported, extending the range of Q2 for which G(E)(p) is accurately determined by more than 50%, which will provide significant constraints on models of nucleon structure in the nonperturbative regime.
Journal ArticleDOI
Determination of the Pion Charge Form Factor at Q 2 1:60 and 2:45 GeV=c 2
T. Horn,K. A. Aniol,J. Arrington,Brynle Barrett,E. J. Beise,H. P. Blok,W. U. Boeglin,E. J. Brash,H. Breuer,C. C. Chang,M. E. Christy,Rolf Ent,D. Gaskell,E. F. Gibson,R. J. Holt,G. M. Huber,S. Jin,M. K. Jones,C. E. Keppel,W. Kim,P. M. King,V. Kovaltchouk,Jin Liu,G. J. Lolos,D. J. Mack,D. J. Margaziotis,Pete Markowitz,A. Matsumura,D. G. Meekins,Toshinobu Miyoshi,H. Mkrtchyan,I. Niculescu,Y. Okayasu,Lubomir Pentchev,C. F. Perdrisat,D. H. Potterveld,V. A. Punjabi,P. E. Reimer,J. Reinhold,J. Roche,P. G. Roos,A. J. Sarty,G. R. Smith,V. Tadevosyan,L. G. Tang,V. Tvaskis,S. Vidakovic,J. Volmer,W. F. Vulcan,Glen A. Warren,S. A. Wood,C. Xu,X. Zheng +52 more
TL;DR: The 1H(e,e'pi+)n cross section was measured at four-momentum transfers of Q2=1.60 and 2.45 GeV2 at an invariant mass of the photon nucleon system of W=2.22 GeV as mentioned in this paper.