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Cross sections and transverse single-spin asymmetries in forward neutral-pion production from proton collisions at sqrt[s]=200 GeV
Authors :
J, Adams C, Adler M M, Aggarwal Z, Ahammed J, Amonett B D, Anderson M, Anderson D, Arkhipkin G S, Averichev S K, Badyal J, Balewski O, Barannikova L S, Barnby J, Baudot S, Bekele V V, Belaga R, Bellwied J, Berger B I, Bezverkhny S, Bhardwaj P, Bhaskar A K, Bhati H, Bichsel A, Billmeier L C, Bland C O, Blyth B E, Bonner M, Botje A, Boucham A, Brandin A, Bravar R V, Cadman X Z, Cai H, Caines M, Calderón de la Barca Sánchez J, Carroll J, Castillo M, Castro D, Cebra P, Chaloupka S, Chattopadhyay H F, Chen Y, Chen S P, Chernenko M, Cherney A, Chikanian B, Choi W, Christie J P, Coffin T M, Cormier J G, Cramer H J, Crawford D, Das S, Das A A, Derevschikov L, Didenko T, Dietel W J, Dong X, Dong J E, Draper F, Du A K, Dubey V B, Dunin J C, Dunlop M R, Dutta Majumdar V, Eckardt L G, Efimov V, Emelianov J, Engelage G, Eppley B, Erazmus M, Estienne P, Fachini V, Faine J, Faivre R, Fatemi K, Filimonov P, Filip E, Finch Y, Fisyak D, Flierl K J, Foley J, Fu C A, Gagliardi N, Gagunashvili J, Gans M S, Ganti L, Gaudichet M, Germain F, Geurts V, Ghazikhanian P, Ghosh J E, Gonzalez O, Grachov V, Grigoriev S, Gronstal D, Grosnick M, Guedon S M, Guertin A, Gupta E, Gushin T D, Gutierrez T J, Hallman D, Hardtke J W, Harris M, Heinz T W, Henry S, Heppelmann T, Herston B, Hippolyte A, Hirsch E, Hjort G W, Hoffmann M, Horsley H Z, Huang S L, Huang T J, Humanic G, Igo A, Ishihara P, Jacobs W W, Jacobs M, Janik H, Jiang I, Johnson P G, Jones E G, Judd S, Kabana M, Kaneta M, Kaplan D, Keane V Yu, Khodyrev J, Kiryluk A, Kisiel J, Klay S R, Klein A, Klyachko D D, Koetke T, Kollegger M, Kopytine L, Kotchenda A D, Kovalenko M, Kramer P, Kravtsov V I, Kravtsov K, Krueger C, Kuhn A I, Kulikov A, Kumar G J, Kunde C L, Kunz R Kh, Kutuev A A, Kuznetsov M A C, Lamont J M, Landgraf S, Lange C P, Lansdell B, Lasiuk F, Laue J, Lauret A, Lebedev R, Lednický M J, LeVine C, Li Q, Li S J, Lindenbaum M A, Lisa F, Liu L, Liu Z, Liu Q J, Liu T, Ljubicic W J, Llope H, Long R S, Longacre M, Lopez-Noriega W A, Love T, Ludlam D, Lynn J, Ma Y G, Ma D, Magestro S, Mahajan L K, Mangotra D P, Mahapatra R, Majka R, Manweiler S, Margetis C, Markert L, Martin J, Marx H S, Matis Yu A, Matulenko T S, McShane F, Meissner Yu, Melnick A, Meschanin M, Messer M L, Miller Z, Milosevich N G, Minaev C, Mironov D, Mishra J, Mitchell B, Mohanty L, Molnar C F, Moore M J, Mora-Corral D A, Morozov V, Morozov M M, de Moura M G, Munhoz B K, Nandi S K, Nayak T K, Nayak J M, Nelson P, Nevski V A, Nikitin L V, Nogach B, Norman S B, Nurushev G, Odyniec A, Ogawa V, Okorokov M, Oldenburg D, Olson G, Paic S U, Pandey S K, Pal Y, Panebratsev S Y, Panitkin A I, Pavlinov T, Pawlak V, Perevoztchikov C, Perkins W, Peryt V A, Petrov S C, Phatak R, Picha M, Planinic J, Pluta N, Porile J, Porter A M, Poskanzer M, Potekhin E, Potrebenikova B V K S, Potukuchi D, Prindle C, Pruneau J, Putschke G, Rai G, Rakness R, Raniwala S, Raniwala O, Ravel R L, Ray S V, Razin D, Reichhold J G, Reid G, Renault F, Retiere A, Ridiger H G, Ritter J B, Roberts O V, Rogachevski J L, Romero A, Rose C, Roy L J, Ruan R, Sahoo I, Sakrejda S, Salur J, Sandweiss I, Savin J, Schambach R P, Scharenberg N, Schmitz L S, Schroeder K, Schweda J, Seger D, Seliverstov P, Seyboth E, Shahaliev M, Shao M, Sharma K E, Shestermanov S S, Shimanskii R N, Singaraju F, Simon G, Skoro N, Smirnov R, Snellings G, Sood P, Sorensen J, Sowinski H M, Spinka B, Srivastava S, Stanislaus R, Stock A, Stolpovsky M, Strikhanov B, Stringfellow C, Struck A A P, Suaide E, Sugarbaker C, Suire M, Sumbera B, Surrow T J M, Symons A, Szanto de Toledo P, Szarwas A, Tai J, Takahashi A H, Tang D, Thein J H, Thomas V, Tikhomirov M, Tokarev M B, Tonjes T A, Trainor S, Trentalange R E, Tribble M D, Trivedi V, Trofimov O, Tsai T, Ullrich D G, Underwood G, Van Buren A M, VanderMolen A N, Vasiliev M, Vasiliev S E, Vigdor Y P, Viyogi S A, Voloshin W, Waggoner F, Wang G, Wang X L, Wang Z M, Wang H, Ward J W, Watson R, Wells G D, Westfall C, Whitten H, Wieman R, Willson S W, Wissink R, Witt J, Wood J, Wu N, Xu Z, Xu Z Z, Xu E, Yamamoto P, Yepes V I, Yurevich Y V, Zanevski I, Zborovský H, Zhang W M, Zhang Z P, Zhang P A, Zołnierczuk R, Zoulkarneev J, Zoulkarneeva A N, Zubarev
Source :
Physical review letters . 92(17)
Publication Year :
2003
Abstract
Measurements of the production of forward high-energy pi(0) mesons from transversely polarized proton collisions at sqrt[s]=200 GeV are reported. The cross section is generally consistent with next-to-leading order perturbative QCD calculations. The analyzing power is small at x(F) below about 0.3, and becomes positive and large at higher x(F), similar to the trend in data at sqrt[s]or =20 GeV. The analyzing power is in qualitative agreement with perturbative QCD model expectations. This is the first significant spin result seen for particles produced with p(T)1 GeV/c at a polarized proton collider.
Details
ISSN :
00319007
Volume :
92
Issue :
17
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.pmid..........4be77c4b38b7a04290dfd30b460d8b0d