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Nuclear modification factors for hadrons at forward and backward rapidities in deuteron-gold collisions at sqrt[s(NN)]=200 GeV
Authors :
S S, Adler S, Afanasiev C, Aidala N N, Ajitanand Y, Akiba A, Al-Jamel J, Alexander K, Aoki L, Aphecetche R, Armendariz S H, Aronson R, Averbeck T C, Awes V, Babintsev A, Baldisseri K N, Barish P D, Barnes B, Bassalleck S, Bathe S, Batsouli V, Baublis F, Bauer A, Bazilevsky S, Belikov M T, Bjorndal J G, Boissevain H, Borel M L, Brooks D S, Brown N, Bruner D, Bucher H, Buesching V, Bumazhnov G, Bunce J M, Burward-Hoy S, Butsyk X, Camard P, Chand W C, Chang S, Chernichenko C Y, Chi J, Chiba M, Chiu I J, Choi R K, Choudhury T, Chujo V, Cianciolo Y, Cobigo B A, Cole M P, Comets P, Constantin M, Csanád T, Csörgo J P, Cussonneau D, d'Enterria K, Das G, David F, Deák H, Delagrange A, Denisov A, Deshpande E J, Desmond A, Devismes O, Dietzsch J L, Drachenberg O, Drapier A, Drees A, Durum D, Dutta V, Dzhordzhadze Y V, Efremenko H, En'yo B, Espagnon S, Esumi D E, Fields C, Finck F, Fleuret S L, Fokin B D, Fox Z, Fraenkel J E, Frantz A, Franz A D, Frawley Y, Fukao S-Y, Fung S, Gadrat M, Germain A, Glenn M, Gonin J, Gosset Y, Goto R, Granier de Cassagnac N, Grau S V, Greene M, Grosse Perdekamp H-A, Gustafsson T, Hachiya J S, Haggerty H, Hamagaki A G, Hansen E P, Hartouni M, Harvey K, Hasuko R, Hayano X, He M, Heffner T K, Hemmick J M, Heuser P, Hidas H, Hiejima J C, Hill R, Hobbs W, Holzmann K, Homma B, Hong A, Hoover T, Horaguchi T, Ichihara V V, Ikonnikov K, Imai M, Inaba M, Inuzuka D, Isenhower L, Isenhower M, Ishihara M, Issah A, Isupov B V, Jacak J, Jia O, Jinnouchi B M, Johnson S C, Johnson K S, Joo D, Jouan F, Kajihara S, Kametani N, Kamihara M, Kaneta J H, Kang K, Katou T, Kawabata A, Kazantsev S, Kelly B, Khachaturov A, Khanzadeev J, Kikuchi D J, Kim E, Kim G-B, Kim H J, Kim E, Kinney A, Kiss E, Kistenev A, Kiyomichi C, Klein-Boesing H, Kobayashi L, Kochenda V, Kochetkov R, Kohara B, Komkov M, Konno D, Kotchetkov A, Kozlov P J, Kroon C H, Kuberg G J, Kunde K, Kurita M J, Kweon Y, Kwon G S, Kyle R, Lacey J G, Lajoie Y, Le Bornec A, Lebedev S, Leckey D M, Lee M J, Leitch M A L, Leite X H, Li H, Lim A, Litvinenko M X, Liu C F, Maguire Y I, Makdisi A, Malakhov V I, Manko Y, Mao G, Martinez H, Masui F, Matathias T, Matsumoto M C, McCain P L, McGaughey Y, Miake T E, Miller A, Milov S, Mioduszewski G C, Mishra J T, Mitchell A K, Mohanty D P, Morrison J M, Moss D, Mukhopadhyay M, Muniruzzaman S, Nagamiya J L, Nagle T, Nakamura J, Newby A S, Nyanin J, Nystrand E, O'Brien C A, Ogilvie H, Ohnishi I D, Ojha H, Okada K, Okada A, Oskarsson I, Otterlund K, Oyama K, Ozawa D, Pal A P T, Palounek V, Pantuev V, Papavassiliou J, Park W J, Park S F, Pate H, Pei V, Penev J-C, Peng H, Pereira V, Peresedov A, Pierson C, Pinkenburg R P, Pisani M L, Purschke A K, Purwar J M, Qualls J, Rak I, Ravinovich K F, Read M, Reuter K, Reygers V, Riabov Y, Riabov G, Roche A, Romana M, Rosati S S E, Rosendahl P, Rosnet V L, Rykov S S, Ryu N, Saito T, Sakaguchi S, Sakai V, Samsonov L, Sanfratello R, Santo H D, Sato S, Sato S, Sawada Y, Schutz V, Semenov R, Seto T K, Shea I, Shein T-A, Shibata K, Shigaki M, Shimomura A, Sickles C L, Silva D, Silvermyr K S, Sim A, Soldatov R A, Soltz W E, Sondheim S P, Sorensen I V, Sourikova F, Staley P W, Stankus E, Stenlund M, Stepanov A, Ster S P, Stoll T, Sugitate J P, Sullivan S, Takagi E M, Takagui A, Taketani K H, Tanaka Y, Tanaka K, Tanida M J, Tannenbaum A, Taranenko P, Tarján T L, Thomas M, Togawa J, Tojo H, Torii R S, Towell V-N, Tram I, Tserruya Y, Tsuchimoto H, Tydesjö N, Tyurin T J, Uam H W, van Hecke J, Velkovska M, Velkovsky V, Veszprémi A A, Vinogradov M A, Volkov E, Vznuzdaev X R, Wang Y, Watanabe S N, White N, Willis F K, Wohn C L, Woody W, Xie A, Yanovich S, Yokkaichi G R, Young I E, Yushmanov W A, Zajc C, Zhang S, Zhou J, Zimányi L, Zolin X, Zong
Source :
Physical review letters . 94(8)
Publication Year :
2004
Abstract
We report on charged hadron production in deuteron-gold reactions at sqrt[s(NN)]=200 GeV. Our measurements in the deuteron direction cover 1.4eta2.2, referred to as forward rapidity, and in the gold direction -2.0eta-1.4, referred to as backward rapidity, and a transverse momentum range p(T)=0.5-4.0 GeV/c. We compare the relative yields for different deuteron-gold collision centrality classes. We observe a suppression relative to binary collision scaling at forward rapidity, sensitive to low momentum fraction (x) partons in the gold nucleus, and an enhancement at backward rapidity, sensitive to high momentum fraction partons in the gold nucleus.
Details
ISSN :
00319007
Volume :
94
Issue :
8
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.pmid..........729a7ba737d8647c802eb3402bee67e6