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Measurement of high-pT single electrons from heavy-flavor decays in p + p collisions at square root of s = 200 GeV
Authors :
A, Adare S, Afanasiev C, Aidala N N, Ajitanand Y, Akiba H, Al-Bataineh J, Alexander K, Aoki L, Aphecetche R, Armendariz S H, Aronson J, Asai E T, Atomssa R, Averbeck T C, Awes B, Azmoun V, Babintsev G, Baksay L, Baksay A, Baldisseri K N, Barish P D, Barnes B, Bassalleck S, Bathe S, Batsouli V, Baublis A, Bazilevsky S, Belikov R, Bennett Y, Berdnikov A A, Bickley J G, Boissevain H, Borel K, Boyle M L, Brooks H, Buesching V, Bumazhnov G, Bunce S, Butsyk S, Campbell B S, Chang J-L, Charvet S, Chernichenko J, Chiba C Y, Chi M, Chiu I J, Choi T, Chujo P, Chung A, Churyn V, Cianciolo C R, Cleven B A, Cole M P, Comets P, Constantin M, Csanád T, Csörgo T, Dahms K, Das G, David M B, Deaton K, Dehmelt H, Delagrange A, Denisov D, d'Enterria A, Deshpande E J, Desmond O, Dietzsch A, Dion M, Donadelli O, Drapier A, Drees A K, Dubey A, Durum V, Dzhordzhadze Y V, Efremenko J, Egdemir F, Ellinghaus W S, Emam A, Enokizono H, En'yo S, Esumi K O, Eyser D E, Fields M, Finger F, Fleuret S L, Fokin Z, Fraenkel A, Franz J, Frantz A D, Frawley K, Fujiwara Y, Fukao T, Fusayasu S, Gadrat I, Garishvili A, Glenn H, Gong M, Gonin J, Gosset Y, Goto R, Granier de Cassagnac N, Grau S V, Greene M, Grosse Perdekamp T, Gunji H-A, Gustafsson T, Hachiya A Hadj, Henni C, Haegemann J S, Haggerty H, Hamagaki R, Han H, Harada E P, Hartouni K, Haruna E, Haslum R, Hayano M, Heffner T K, Hemmick T, Hester X, He H, Hiejima J C, Hill R, Hobbs M, Hohlmann W, Holzmann K, Homma B, Hong T, Horaguchi D, Hornback T, Ichihara K, Imai M, Inaba Y, Inoue D, Isenhower L, Isenhower M, Ishihara T, Isobe M, Issah A, Isupov B V, Jacak J, Jia J, Jin O, Jinnouchi B M, Johnson K S, Joo D, Jouan F, Kajihara S, Kametani N, Kamihara J, Kamin M, Kaneta J H, Kang H, Kanou H, Kano D, Kawall A V, Kazantsev A, Khanzadeev J, Kikuchi D H, Kim D J, Kim E, Kim E, Kinney A, Kiss E, Kistenev A, Kiyomichi J, Klay C, Klein-Boesing L, Kochenda V, Kochetkov B, Komkov M, Konno D, Kotchetkov A, Kozlov A, Král A, Kravitz J, Kubart G J, Kunde N, Kurihara K, Kurita M J, Kweon Y, Kwon G S, Kyle R, Lacey Y-S, Lai J G, Lajoie A, Lebedev D M, Lee M K, Lee T, Lee M J, Leitch M A L, Leite B, Lenzi T, Liska A, Litvinenko M X, Liu X, Li B, Love D, Lynch C F, Maguire Y I, Makdisi A, Malakhov M D, Malik V I, Manko Y, Mao L, Masek H, Masui F, Matathias M, McCumber P L, McGaughey Y, Miake P, Mikes K, Miki T E, Miller A, Milov S, Mioduszewski M, Mishra J T, Mitchell M, Mitrovski A, Morreale D P, Morrison T V, Moukhanova D, Mukhopadhyay J, Murata S, Nagamiya Y, Nagata J L, Nagle M, Naglis I, Nakagawa Y, Nakamiya T, Nakamura K, Nakano J, Newby M, Nguyen B E, Norman A S, Nyanin E, O'Brien S X, Oda C A, Ogilvie H, Ohnishi H, Okada K, Okada M, Oka O O, Omiwade A, Oskarsson M, Ouchida K, Ozawa R, Pak D, Pal A P T, Palounek V, Pantuev V, Papavassiliou J, Park W J, Park S F, Pate H, Pei J-C, Peng H, Pereira V, Peresedov D Yu, Peressounko C, Pinkenburg M L, Purschke A K, Purwar H, Qu J, Rak A, Rakotozafindrabe I, Ravinovich K F, Read S, Rembeczki M, Reuter K, Reygers V, Riabov Y, Riabov G, Roche A, Romana M, Rosati S S E, Rosendahl P, Rosnet P, Rukoyatkin V L, Rykov B, Sahlmueller N, Saito T, Sakaguchi S, Sakai H, Sakata V, Samsonov S, Sato S, Sawada J, Seele R, Seidl V, Semenov R, Seto D, Sharma I, Shein A, Shevel T-A, Shibata K, Shigaki M, Shimomura K, Shoji A, Sickles C L, Silva D, Silvermyr C, Silvestre K S, Sim C P, Singh V, Singh S, Skutnik M, Slunecka 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 C, Suire J, Sziklai T, Tabaru S, Takagi E M, Takagui A, Taketani Y, Tanaka K, Tanida M J, Tannenbaum A, Taranenko P, Tarján T L, Thomas M, Togawa A, Toia J, Tojo L, Tomásek H, Torii R S, Towell V-N, Tram I, Tserruya Y, Tsuchimoto C, Vale H, Valle H W, van Hecke J, Velkovska R, Vertesi A A, Vinogradov M, Virius V, Vrba E, Vznuzdaev M, Wagner D, Walker X R, Wang Y, Watanabe J, Wessels S N, White D, Winter C L, Woody M, Wysocki W, Xie Y, Yamaguchi A, Yanovich Z, Yasin J, Ying S, Yokkaichi G R, Young I, Younus I E, Yushmanov W A, Zajc O, Zaudtke C, Zhang S, Zhou J, Zimányi L, Zolin
Source :
Physical review letters . 97(25)
Publication Year :
2006
Abstract
The momentum distribution of electrons from decays of heavy flavor (charm and bottom) for midrapidity absolute value of y0.35 in p + p collisions at square root of s = 200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.3pT9 GeV/c. Two independent methods have been used to determine the heavy-flavor yields, and the results are in good agreement with each other. A fixed-order-plus-next-to-leading-log perturbative QCD calculation agrees with the data within the theoretical and experimental uncertainties, with the data/theory ratio of 1.71+/-0.02stat+/-0.18sys for 0.3pT9 GeV/c. The total charm production cross section at this energy has also been deduced to be sigma cc = 567+/-57stat+/-193sys microb.
Details
ISSN :
00319007
Volume :
97
Issue :
25
Database :
OpenAIRE
Journal :
Physical review letters
Accession number :
edsair.pmid..........c4441519b4efa27a88d4fb83bc3fdbb5