Phys. Rev. Lett.
100,
232003
(2008)
[7 pages]
Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in p⃗+p⃗ Collisions at √s=200 GeV
B. I. Abelev et al. STAR Collaboration
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B. I. Abelev9, M. M. Aggarwal31, Z. Ahammed46, B. D. Anderson20, D. Arkhipkin13, G. S. Averichev12, Y. Bai29, J. Balewski17, O. Barannikova9, L. S. Barnby2, J. Baudot18, S. Baumgart51, V. V. Belaga12, A. Bellingeri-Laurikainen41, R. Bellwied49, F. Benedosso29, R. R. Betts9, S. Bhardwaj36, A. Bhasin19, A. K. Bhati31, H. Bichsel48, J. Bielcik51, J. Bielcikova51, L. C. Bland3, S-L. Blyth23, M. Bombara2, B. E. Bonner37, M. Botje29, J. Bouchet41, A. V. Brandin27, T. P. Burton2, M. Bystersky11, X. Z. Cai40, H. Caines51, M. Calderón de la Barca Sánchez6, J. Callner9, O. Catu51, D. Cebra6, M. C. Cervantes42, Z. Chajecki30, P. Chaloupka11, S. Chattopadhyay46, H. F. Chen39, J. H. Chen40, J. Y. Chen50, J. Cheng44, M. Cherney10, A. Chikanian51, W. Christie3, S. U. Chung3, R. F. Clarke42, M. J. M. Codrington42, J. P. Coffin18, T. M. Cormier49, M. R. Cosentino38, J. G. Cramer48, H. J. Crawford5, D. Das46, S. Dash15, M. Daugherity43, M. M. de Moura38, T. G. Dedovich12, M. DePhillips3, A. A. Derevschikov33, L. Didenko3, T. Dietel14, P. Djawotho17, S. M. Dogra19, X. Dong23, J. L. Drachenberg42, J. E. Draper6, F. Du51, V. B. Dunin12, J. C. Dunlop3, M. R. Dutta Mazumdar46, W. R. Edwards23, L. G. Efimov12, E. Elhalhuli2, V. Emelianov27, J. Engelage5, G. Eppley37, B. Erazmus41, M. Estienne18, P. Fachini3, R. Fatemi21, J. Fedorisin12, A. Feng50, P. Filip13, E. Finch51, V. Fine3, Y. Fisyak3, J. Fu50, C. A. Gagliardi42, L. Gaillard2, M. S. Ganti46, E. Garcia-Solis9, V. Ghazikhanian7, P. Ghosh46, Y. N. Gorbunov10, H. Gos47, O. Grebenyuk29, D. Grosnick45, B. Grube35, S. M. Guertin7, K. S. F. F. Guimaraes38, A. Gupta19, N. Gupta19, B. Haag6, T. J. Hallman3, A. Hamed42, J. W. Harris51, W. He17, M. Heinz51, T. W. Henry42, S. Heppelmann32, B. Hippolyte18, A. Hirsch34, E. Hjort23, A. M. Hoffman24, G. W. Hoffmann43, D. J. Hofman9, R. S. Hollis9, M. J. Horner23, H. Z. Huang7, E. W. Hughes4, T. J. Humanic30, G. Igo7, A. Iordanova9, P. Jacobs23, W. W. Jacobs17, P. Jakl11, P. G. Jones2, E. G. Judd5, S. Kabana41, K. Kang44, J. Kapitan11, M. Kaplan8, D. Keane20, A. Kechechyan12, D. Kettler48, V. Yu. Khodyrev33, J. Kiryluk23, A. Kisiel30, E. M. Kislov12, S. R. Klein23, A. G. Knospe51, A. Kocoloski24, D. D. Koetke45, T. Kollegger14, M. Kopytine20, L. Kotchenda27, V. Kouchpil11, K. L. Kowalik23, P. Kravtsov27, V. I. Kravtsov33, K. Krueger1, C. Kuhn18, A. I. Kulikov12, A. Kumar31, P. Kurnadi7, A. A. Kuznetsov12, M. A. C. Lamont3, J. M. Landgraf3, S. Lange14, S. LaPointe49, F. Laue3, J. Lauret3, A. Lebedev3, R. Lednicky13, C-H. Lee35, S. Lehocka12, M. J. LeVine3, C. Li39, Q. Li49, Y. Li44, G. Lin51, X. Lin50, S. J. Lindenbaum28, M. A. Lisa30, F. Liu50, H. Liu39, J. Liu37, L. Liu50, T. Ljubicic3, W. J. Llope37, R. S. Longacre3, W. A. Love3, Y. Lu50, T. Ludlam3, D. Lynn3, G. L. Ma40, J. G. Ma7, Y. G. Ma40, D. P. Mahapatra15, R. Majka51, L. K. Mangotra19, R. Manweiler45, S. Margetis20, C. Markert43, L. Martin41, H. S. Matis23, Yu. A. Matulenko33, T. S. McShane10, A. Meschanin33, J. Millane24, M. L. Miller24, N. G. Minaev33, S. Mioduszewski42, A. Mischke29, J. Mitchell37, B. Mohanty46, D. A. Morozov33, M. G. Munhoz38, B. K. Nandi16, C. Nattrass51, T. K. Nayak46, J. M. Nelson2, C. Nepali20, P. K. Netrakanti34, L. V. Nogach33, S. B. Nurushev33, G. Odyniec23, A. Ogawa3, V. Okorokov27, D. Olson23, M. Pachr11, S. K. Pal46, Y. Panebratsev12, A. I. Pavlinov49, T. Pawlak47, T. Peitzmann29, V. Perevoztchikov3, C. Perkins5, W. Peryt47, S. C. Phatak15, M. Planinic52, J. Pluta47, N. Poljak52, N. Porile34, A. M. Poskanzer23, M. Potekhin3, E. Potrebenikova12, B. V. K. S. Potukuchi19, D. Prindle48, C. Pruneau49, N. K. Pruthi31, J. Putschke23, I. A. Qattan17, R. Raniwala36, S. Raniwala36, R. L. Ray43, D. Relyea4, A. Ridiger27, H. G. Ritter23, J. B. Roberts37, O. V. Rogachevskiy12, J. L. Romero6, A. Rose23, C. Roy41, L. Ruan3, M. J. Russcher29, R. Sahoo15, I. Sakrejda23, T. Sakuma24, S. Salur51, J. Sandweiss51, M. Sarsour42, P. S. Sazhin12, J. Schambach43, R. P. Scharenberg34, N. Schmitz25, J. Seger10, I. Selyuzhenkov49, P. Seyboth25, A. Shabetai18, E. Shahaliev12, M. Shao39, M. Sharma31, W. Q. Shen40, S. S. Shimanskiy12, E. P. Sichtermann23, F. Simon24, R. N. Singaraju46, M. J. Skoby34, N. Smirnov51, R. Snellings29, P. Sorensen3, J. Sowinski17, J. Speltz18, H. M. Spinka1, B. Srivastava34, A. Stadnik12, T. D. S. Stanislaus45, D. Staszak7, R. Stock14, M. Strikhanov27, B. Stringfellow34, A. A. P. Suaide38, M. C. Suarez9, N. L. Subba20, M. Sumbera11, X. M. Sun23, Z. Sun22, B. Surrow24, T. J. M. Symons23, A. Szanto de Toledo38, J. Takahashi38, A. H. Tang3, T. Tarnowsky34, J. H. Thomas23, A. R. Timmins2, S. Timoshenko27, M. Tokarev12, T. A. Trainor48, V. N. Tram23, S. Trentalange7, R. E. Tribble42, O. D. Tsai7, J. Ulery34, T. Ullrich3, D. G. Underwood1, G. Van Buren3, N. van der Kolk29, M. van Leeuwen23, A. M. Vander Molen26, R. Varma16, I. M. Vasilevski13, A. N. Vasiliev33, R. Vernet18, S. E. Vigdor17, Y. P. Viyogi15, S. Vokal12, S. A. Voloshin49, M. Wada10, W. T. Waggoner10, F. Wang34, G. Wang7, J. S. Wang22, X. L. Wang39, Y. Wang44, J. C. Webb45, G. D. Westfall26, C. Whitten, Jr.7, H. Wieman23, S. W. Wissink17, R. Witt51, J. Wu39, Y. Wu50, N. Xu23, Q. H. Xu23, Z. Xu3, P. Yepes37, I-K. Yoo35, Q. Yue44, V. I. Yurevich12, M. Zawisza47, W. Zhan22, H. Zhang3, W. M. Zhang20, Y. Zhang39, Z. P. Zhang39, Y. Zhao39, C. Zhong40, J. Zhou37, R. Zoulkarneev13, Y. Zoulkarneeva13, A. N. Zubarev12, and J. X. Zuo40 (STAR Collaboration)
1Argonne National Laboratory, Argonne, Illinois 60439, USA
2University of Birmingham, Birmingham, United Kingdom
3Brookhaven National Laboratory, Upton, New York 11973, USA
4California Institute of Technology, Pasadena, California 91125, USA
5University of California, Berkeley, California 94720, USA
6University of California, Davis, California 95616, USA
7University of California, Los Angeles, California 90095, USA
8Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
9University of Illinois at Chicago, Chicago, Illinois 60607, USA
10Creighton University, Omaha, Nebraska 68178, USA
11Nuclear Physics Institute AS CR, 250 68 Řež/Prague, Czech Republic
12Laboratory for High Energy (JINR), Dubna, Russia
13Particle Physics Laboratory (JINR), Dubna, Russia
14University of Frankfurt, Frankfurt, Germany
15Institute of Physics, Bhubaneswar 751005, India
16Indian Institute of Technology, Mumbai, India
17Indiana University, Bloomington, Indiana 47408, USA
18Institut de Recherches Subatomiques, Strasbourg, France
19University of Jammu, Jammu 180001, India
20Kent State University, Kent, Ohio 44242, USA
21University of Kentucky, Lexington, Kentucky, 40506-0055, USA
22Institute of Modern Physics, Lanzhou, China
23Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
24Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
25Max-Planck-Institut für Physik, Munich, Germany
26Michigan State University, East Lansing, Michigan 48824, USA
27Moscow Engineering Physics Institute, Moscow Russia
28City College of New York, New York City, New York 10031, USA
29NIKHEF and Utrecht University, Amsterdam, The Netherlands
30Ohio State University, Columbus, Ohio 43210, USA
31Panjab University, Chandigarh 160014, India
32Pennsylvania State University, University Park, Pennsylvania 16802, USA
33Institute of High Energy Physics, Protvino, Russia
34Purdue University, West Lafayette, Indiana 47907, USA
35Pusan National University, Pusan, Republic of Korea
36University of Rajasthan, Jaipur 302004, India
37Rice University, Houston, Texas 77251, USA
38Universidade de Sao Paulo, Sao Paulo, Brazil
39University of Science & Technology of China, Hefei 230026, China
40Shanghai Institute of Applied Physics, Shanghai 201800, China
41SUBATECH, Nantes, France
42Texas A&M University, College Station, Texas 77843, USA
43University of Texas, Austin, Texas 78712, USA
44Tsinghua University, Beijing 100084, China
45Valparaiso University, Valparaiso, Indiana 46383, USA
46Variable Energy Cyclotron Centre, Kolkata 700064, India
47Warsaw University of Technology, Warsaw, Poland
48University of Washington, Seattle, Washington 98195, USA
49Wayne State University, Detroit, Michigan 48201, USA
50Institute of Particle Physics, CCNU (HZNU), Wuhan 430079, China
51Yale University, New Haven, Connecticut 06520, USA
52University of Zagreb, Zagreb, HR-10002, Croatia
Received 12 October 2007; published 13 June 2008
We report a new STAR measurement of the longitudinal double-spin asymmetry ALL for inclusive jet production at midrapidity in polarized p+p collisions at a center-of-mass energy of √s=200 GeV. The data, which cover jet transverse momenta 5<pT<30 GeV/c, are substantially more precise than previous measurements. They provide significant new constraints on the gluon spin contribution to the nucleon spin through the comparison to predictions derived from one global fit to polarized deep-inelastic scattering measurements.
© 2008 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.232003
DOI:
10.1103/PhysRevLett.100.232003
PACS:
14.20.Dh, 13.87.Ce, 13.88.+e, 14.70.Dj
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