Measurement of the ratio of b quark production cross sections in (p)over-bar-p collisions at root s=630 GeV and root s=1800 GeV

Acosta, D; Affolder, T; Akimoto, H; Albrow, Mg; Ambrose, D; Amidei, D; Anikeev, K; Antos, J; Apollinari, G; Arisawa, T; Artikov, A; Asakawa, T; Ashmanskas, W; Azfar, F; Azzi Bacchetta, P; Bacchetta, N; Bachacou, H; Badgett, W; Bailey, S; de Barbaro, P; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Baroiant, S; Barone, M; Bauer, G; Bedeschi, F; Belforte, S; Bell, Wh; Bellettini, G; Bellinger, J; Benjamin, D; Bensinger, J; Beretvas, A; Berge, Jp; Berryhill, J; Bhatti, A; Binkley, M; Bisello, D; Bishai, M; Blair, Re; Blocker, C; Bloom, K; Blumenfeld, B; Blusk, Sr; Bocci, A; Bodek, A; Bolla, G; Bonushkin, Y; Bortoletto, D; Boudreau, J; Brandl, A; van den Brink, S; Bromberg, C; Brozovic, M; Brubaker, E; Bruner, N; Buckley Geer, E; Budagov, J; Budd, Hs; Burkett, K; Busetto, G; Byon Wagner, A; Byrum, Kl; Cabrera, S; Calafiura, P; Campbell, M; Carithers, W; Carlson, J; Carlsmith, D; Caskey, W; Castro, A; Cauz, D; Cerri, A; Chan, Aw; Chang, Ps; Chang, Pt; Chapman, J; Chen, C; Chen, Yc; Cheng, Mt; 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Guenther, M; Guillian, G; da Costa JG,; Haas, Rm; Haber, C; Hahn, Sr; Hall, C; Handa, T; Handler, R; Hao, W; Happacher, F; Hara, K; Hardman, Ad; Harris, Rm; Hartmann, F; Hatakeyama, K; Hauser, J; Heinrich, J; Heiss, A; Hennecke, M; Herndon, M; Hill, C; Hocker, A; Hoffman, Kd; Hollebeek, R; Holloway, L; Huffman, Bt; Hughes, R; Huston, J; Huth, J; Ikeda, H; Incandela, J; Introzzi, G; Ivanov, A; Iwai, J; Iwata, Y; James, E; Jones, M; Joshi, U; Kambara, H; Kamon, T; Kaneko, T; Unel, Mk; Karr, K; Kartal, S; Kasha, H; Kato, Y; Keaffaber, Ta; Kelley, K; Kelly, M; Kennedy, Rd; Kephart, R; Khazins, D; Kikuchi, T; Kilminster, B; Kim, Bj; Kim, Dh; Kim, Hs; Kim, Mj; Kim, Sb; Kim, Sh; Kim, Yk; Kirby, M; Kirk, M; Kirsch, L; Klimenko, S; Koehn, P; Kondo, K; Konigsberg, J; Korn, A; Korytov, A; Kovacs, E; Kroll, J; Kruse, M; Krutelyov, S; Kuhlmann, Se; Kurino, K; Kuwabara, T; Laasanen, At; Lai, N; Lami, S; Lammel, S; Lancaster, J; Lancaster, M; Lander, R; Lath, A; Latino, G; Lecompte, Tj; Lee, K; Leone, S; 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doi:10.1103/PhysRevD.66.032002

We report a measurement of the ratio of the bottom quark production cross section in antiproton-proton collisions at roots=630 GeV to 1800 GeV using bottom quarks with transverse momenta greater than 10.75 GeV identified through their semileptonic decays and long lifetimes. The measured ratio sigma(630)/sigma(1800)=0.171+/-.024+/-.012 is in good agreement with next-to-leading order quantum chromodynamics. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Nomerotski, Andrei/A-5169-2010; Ruiz, Alberto/E-4473-2011; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

Digital Object Identifier (DOI):	10.1103/PhysRevD.66.032002
Codice identificativo ISI:	WOS:000177873600006
Codice identificativo Scopus:	2-s2.0-4243914757
Handle:	http://hdl.handle.net/11695/4848
Abstract:	We report a measurement of the ratio of the bottom quark production cross section in antiproton-proton collisions at roots=630 GeV to 1800 GeV using bottom quarks with transverse momenta greater than 10.75 GeV identified through their semileptonic decays and long lifetimes. The measured ratio sigma(630)/sigma(1800)=0.171+/-.024+/-.012 is in good agreement with next-to-leading order quantum chromodynamics. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Nomerotski, Andrei/A-5169-2010; Ruiz, Alberto/E-4473-2011; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
Titolo:	Measurement of the ratio of b quark production cross sections in (p)over-bar-p collisions at root s=630 GeV and root s=1800 GeV
Autori:	Acosta D Affolder T Akimoto H Albrow MG Ambrose D Amidei D Anikeev K Antos J Apollinari G Arisawa T Artikov A Asakawa T Ashmanskas W Azfar F Azzi Bacchetta P Bacchetta N Bachacou H Badgett W Bailey S de Barbaro P Barbaro Galtieri A Barnes VE Barnett BA Baroiant S Barone M Bauer G Bedeschi F Belforte S Bell WH Bellettini G Bellinger J Benjamin D Bensinger J Beretvas A Berge JP Berryhill J Bhatti A Binkley M Bisello D Bishai M Blair RE Blocker C Bloom K Blumenfeld B Blusk SR Bocci A Bodek A Bolla G Bonushkin Y Bortoletto D Boudreau J Brandl A van den Brink S Bromberg C Brozovic M Brubaker E Bruner N Buckley Geer E Budagov J Budd HS Burkett K Busetto G Byon Wagner A Byrum KL Cabrera S Calafiura P Campbell M Carithers W Carlson J Carlsmith D Caskey W Castro A Cauz D Cerri A Chan AW Chang PS Chang PT Chapman J Chen C Chen YC Cheng MT Chertok M Chiarelli G Chirikov Zorin I Chlachidze G Chlebana F Christofek L Chu ML Chung JY Chung YS Ciobanu CI Clark AG Colijn AP Connolly A Convery M Conway J Cordelli M Cranshaw J Culbertson R Dagenhart D D'Auria S DeJongh F Dell'Agnello S Dell'Orso M Demers S Demortier L Deninno M Derwent PF Devlin T Dittmann JR Dominguez A Donati S Done J D'Onofrio M Dorigo T Eddy N Einsweiler K Elias JE Engels E Erbacher R Erdmann W Errede D Errede S Fan Q Farrington S Fang HC Feild RG Fernandez JP Ferretti C Field RD Fiori I Flaugher B Foster GW Franklin M Freeman J Friedman J Fuess TA Fukui Y Furic I Galeotti S Gallas A Gallinaro M Gao T Garcia Sciveres M Garfinkel AF Gatti P Gay C Gerdes DW Gerstein E Giannetti P Giromini P Glagolev V Glenzinski D Gold M Goldstein J Gorelov I Goshaw AT Gotra Y Goulianos K Green C Grim G Gris P Grosso Pilcher C Guenther M Guillian G da Costa JG Haas RM Haber C Hahn SR Hall C Handa T Handler R Hao W Happacher F Hara K Hardman AD Harris RM Hartmann F Hatakeyama K Hauser J Heinrich J Heiss A Hennecke M Herndon M Hill C Hocker A Hoffman KD Hollebeek R Holloway L Huffman BT Hughes R Huston J Huth J Ikeda H Incandela J Introzzi G Ivanov A Iwai J Iwata Y James E Jones M Joshi U Kambara H Kamon T Kaneko T Unel MK Karr K Kartal S Kasha H Kato Y Keaffaber TA Kelley K Kelly M Kennedy RD Kephart R Khazins D Kikuchi T Kilminster B Kim BJ Kim DH Kim HS Kim MJ Kim SB Kim SH Kim YK Kirby M Kirk M Kirsch L Klimenko S Koehn P Kondo K Konigsberg J Korn A Korytov A Kovacs E Kroll J Kruse M Krutelyov S Kuhlmann SE Kurino K Kuwabara T Laasanen AT Lai N Lami S Lammel S Lancaster J Lancaster M Lander R Lath A Latino G LeCompte TJ Lee K Leone S Lewis JD Lindgren M Liss TM Liu JB Liu T Liu YC Litvintsev DO Lobban O Lockyer NS Loken J Loreti M Lucchesi D Lukens P Lusin S Lyons L Lys J Madrak R Maeshima K Maksimovic P Malferrari L Mangano M Manca G Mariotti M Martignon G Martin A Martin V Matthews JAJ Mazzanti P McFarland KS McIntyre P Menguzzato M Menzione A Merkel P Mesropian C Meyer A Miao T Miller R Miller JS Minato H Miscetti S Mishina M Mitselmakher G Miyazaki Y Moggi N Moore E Moore R Morita Y Moulik T Mulhearn M Mukherjee A Muller T Munar A Murat P Murgia S Nachtman J Nagaslaev V Nahn S Nakada H Nakano I Nelson C Nelson T Neu C Neuberger D Newman Holmes C Ngan CYP Niu H Nodulman L Nomerotski A Oh SH Oh YD Ohl K Ohmoto T Ohsugi T Oishi R Okusawa T Olsen J Orejudos W Pagliarone C Palmonari F Paoletti R Papadimitriou V Pappas S Partos D Patrick J Pauletta G Paulini M Paus C Pellett D Pescara L Phillips TJ PIACENTINO, Giovanni Maria Pitts KT Pompos A Pondrom L Pope G Pratt T Prokoshin F Proudfoot J Ptohos F Pukhov O Punzi G Rakitine A Ratnikov F Reher D Reichold A Renton P Ribon A Riegler W Rimondi F Ristori L Riveline M Robertson WJ Rodrigo T Rolli S Rosenson L Roser R Rossin R Rott C Roy A Ruiz A Safonov A St Denis R Sakumoto WK Saltzberg D Sanchez C Sansoni A Santi L Sato H Savard P Savoy Navarro A Schlabach P Schmidt EE Schmidt MP Schmitt M Scodellaro L Scott A Scribano A Sedov A Segler S Seidel S Seiya Y Semenov A Semeria F Shah T Shapiro MD Shepard PF Shibayama T Shimojima M Shochet M Sidoti A Siegrist J Sill A Sinervo P Singh P Slaughter AJ Sliwa K Smith C Snider FD Solodsky A Spalding J Speer T Sphicas P Spinella F Spiropulu M Spiegel L Steele J Stefanini A Strologas J Strumia F Stuart D Sumorok K Suzuki T Takano T Takashima R Takikawa K Tamburello P Tanaka M Tannenbaum B Tecchio M Tesarek RJ Teng PK Terashi K Tether S Thompson AS Thomson E Thurman Keup R Tipton P Tkaczyk S Toback D Tollefson K Tollestrup A Tonelli D Tonnesmann M Toyoda H Trischuk W de Troconiz JF Tseng J Tsybychev D Turini N Ukegawa F Unverhau T Vaiciulis T Valls J Vataga E Vejcik S Velev G Veramendi G Vidal R Vila I Vilar R Volobouev I von der Mey M Vucinic D Wagner RG Wagner RL Wallace NB Wan Z Wang C Wang MJ Wang SM Ward B Waschke S Watanabe T Waters D Watts T Webb R Webber M Wenzel H Wester WC Wicklund AB Wicklund E Wilkes T Williams HH Wilson P Winer BL Winn D Wolbers S Wolinski D Wolinski J Wolinski S Worm S Wu X Wyss J Yao W Yeh GP Yeh P Yoh J Yosef C Yoshida T Yu I Yu S Yu Z Yun JC Zanetti A Zetti F Zucchelli S. mostra contributor esterni nascondi contributor esterni
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