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在质心能量平方根√[s(NN)] = 200 GeV的氘核-金核碰撞中,大横向动量下粒子产生不存在抑制现象。

Absence of suppression in particle production at large transverse momentum in sqrt[s(NN)]=200 GeV d+Au collisions.

作者信息

Adler S S, Afanasiev S, Aidala C, Ajitanand N N, Akiba Y, Al-Jamel A, Alexander J, Aoki K, Aphecetche L, Armendariz R, Aronson S H, Averbeck R, Awes T C, Babintsev V, Baldisseri A, Barish K N, Barnes P D, Bassalleck B, Bathe S, Batsouli S, Baublis V, Bauer F, Bazilevsky A, Belikov S, Bjorndal M T, Boissevain J G, Borel H, Brooks M L, Brown D S, Bruner N, Bucher D, Buesching H, Bumazhnov V, Bunce G, Burward-Hoy J M, Butsyk S, Camard X, Chand P, Chang W C, Chernichenko S, Chi C Y, Chiba J, Chiu M, Choi I J, Choudhury R K, Chujo T, Cianciolo V, Cobigo Y, Cole B A, Comets M P, Constantin P, Csanád M, Csörgo T, Cussonneau J P, d'Enterria D, Das K, David G, Deák F, Delagrange H, Denisov A, Deshpande A, Desmond E J, Devismes A, Dietzsch O, Drachenberg J L, Drapier O, Drees A, Durum A, Dutta D, Dzhordzhadze V, Efremenko Y V, En'yo H, Espagnon B, Esumi S, Fields D E, Finck C, Fleuret F, Fokin S L, Fox B D, Fraenkel Z, Frantz J E, Franz A, Frawley A D, Fukao Y, Fung S-Y, Gadrat S, Germain M, Glenn A, Gonin M, Gosset J, Goto Y, Granier de Cassagnac R, Grau N, Greene S V, Grosse Perdekamp M, Gustafsson H-A, Hachiya T, Haggerty J S, Hamagaki H, Hansen A G, Hartouni E P, Harvey M, Hasuko K, Hayano R, He X, Heffner M, Hemmick T K, Heuser J M, Hidas P, Hiejima H, Hill J C, Hobbs R, Holzmann W, Homma K, Hong B, Hoover A, Horaguchi T, Ichihara T, Ikonnikov V V, Imai K, Inuzuka M, Isenhower D, Isenhower L, Issah M, Isupov A, Jacak B V, Jia J, Jinnouchi O, Johnson B M, Johnson S C, Joo K S, Jouan D, Kajihara F, Kametani S, Kamihara N, Kaneta M, Kang J H, Katou K, Kawabata T, Kazantsev A, Kelly S, Khachaturov B, Khanzadeev A, Kikuchi J, Kim D J, Kim E, Kim G-B, Kim H J, Kinney E, Kiss A, Kistenev E, Kiyomichi A, Klein-Boesing C, Kobayashi H, Kochetkov V, Kohara R, Komkov B, Konno M, Kotchetkov D, Kozlov A, Kroon P J, Kuberg C H, Kunde G J, Kurita K, Kweon M J, Kwon Y, Kyle G S, Lacey R, Lajoie J G, Le Bornec Y, Lebedev A, Leckey S, Lee D M, Leitch M J, Leite M A L, Li X, Li X H, Lim H, Litvinenko A, Liu M X, Maguire C F, Makdisi Y I, Malakhov A, Manko V I, Mao Y, Martinez G, Masui H, Matathias F, Matsumoto T, McCain M C, McGaughey P L, Miake Y, Miller T E, Milov A, Mioduszewski S, Mishra G C, Mitchell J T, Mohanty A K, Morrison D P, Moss J M, Mukhopadhyay D, Muniruzzaman M, Nagamiya S, Nagle J L, Nakamura T, Newby J, Nyanin A S, Nystrand J, O'Brien E, Ogilvie C A, Ohnishi H, Ojha I D, Okada H, Okada K, Oskarsson A, Otterlund I, Oyama K, Ozawa K, Pal D, Palounek A P T, Pantuev V, Papavassiliou V, Park J, Park W J, Pate S F, Pei H, Penev V, Peng J-C, Pereira H, Peresedov V, Pierson A, Pinkenburg C, Pisani R P, Purschke M L, Purwar A K, Qualls J, Rak J, Ravinovich I, Read K F, Reuter M, Reygers K, Riabov V, Riabov Y, Roche G, Romana A, Rosati M, Rosendahl S, Rosnet P, Rykov V L, Ryu S S, Saito N, Sakaguchi T, Sakai S, Samsonov V, Sanfratello L, Santo R, Sato H D, Sato S, Sawada S, Schutz Y, Semenov V, Seto R, Shea T K, Shein I, Shibata T-A, Shigaki K, Shimomura M, Sickles A, Silva C L, Silvermyr D, Sim K S, Soldatov A, Soltz R A, Sondheim W E, Sorensen S, Sourikova I V, Staley F, Stankus P W, Stenlund E, Stepanov M, Ster A, Stoll S P, Sugitate T, Sullivan J P, Takagi S, Takagui E M, Taketani A, Tanaka K H, Tanaka Y, Tanida K, Tannenbaum M J, Taranenko A, Tarján P, Thomas T L, Togawa M, Tojo J, Torii H, Towell R S, Tram V-N, Tserruya I, Tsuchimoto Y, Tydesjö H, Tyurin N, Uam T J, van Hecke H W, Velkovska J, Velkovsky M, Veszprémi V, Vinogradov A A, Volkov M A, Vznuzdaev E, Wang X R, Watanabe Y, White S N, Willis N, Wohn F K, Woody C L, Xie W, Yanovich A, Yokkaichi S, Young G R, Yushmanov I E, Zajc W A, Zhang C, Zhou S, Zimányi J, Zolin L, Zong X

机构信息

Brookhaven National Laboratory, Upton, New York 11973-5000, USA.

出版信息

Phys Rev Lett. 2003 Aug 15;91(7):072303. doi: 10.1103/PhysRevLett.91.072303.

DOI:10.1103/PhysRevLett.91.072303
PMID:12935008
Abstract

Transverse momentum spectra of charged hadrons with p(T)<8 GeV/c and neutral pions with p(T)<10 GeV/c have been measured at midrapidity by the PHENIX experiment at BNL RHIC in d+Au collisions at sqrt[s(NN)]=200 GeV. The measured yields are compared to those in p+p collisions at the same sqrt[s(NN)] scaled up by the number of underlying nucleon-nucleon collisions in d+Au. The yield ratio does not show the suppression observed in central Au+Au collisions at RHIC. Instead, there is a small enhancement in the yield of high momentum particles.

摘要

在布鲁克海文国家实验室相对论重离子对撞机(BNL RHIC)的PHENIX实验中,于质心能量√[s(NN)] = 200 GeV的d+Au碰撞中,测量了横动量p(T)<8 GeV/c的带电强子以及横动量p(T)<10 GeV/c的中性π介子在中快度处的横动量谱。将测量得到的产额与相同√[s(NN)]下p+p碰撞中的产额进行比较,并根据d+Au中核子-核子碰撞的数量进行缩放。产额比并未显示出在RHIC的中心Au+Au碰撞中观察到的抑制现象。相反,高动量粒子的产额有小幅增强。

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