The b(b)over-bar production cross section and angular correlations in p(p)over-bar collisions at √s = 1.8 TeV

被引：123

作者：

Abbott, B ^{[1
]}

Abolins, M

Abramov, V

Acharya, BS

Adams, DL

Adams, M

Akimov, V

Alves, GA

Amos, N

Anderson, EW

Baarmand, MM

Babintsev, VV

Babukhadia, L

Baden, A

Baldin, B

Banerjee, S

Bantly, J

Barberis, E

Baringer, P

Bartlett, JF

Bassler, U

Bean, A

Belyaev, A

Beri, SB

Bernardi, G

Bertram, I

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Blazey, G

Blessing, S

Boehnlein, A

Bojko, NI

Borcherding, F

Brandt, A

Breedon, R

Briskin, G

Brock, R

Brooijmans, G

Bross, A

Buchholz, D

Buehler, M

Buescher, V

Burtovoi, VS

Butler, JM

Canelli, F

Carvalho, W

Casey, D

Casilum, Z

机构：

[1] Univ Buenos Aires, Buenos Aires, DF, Argentina

[2] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[3] Univ Estado Rio De Janeiro, Rio De Janeiro, Brazil

[4] Inst High Energy Phys, Beijing 100039, Peoples R China

[5] Univ Los Andes, Bogota, Colombia

[6] Charles Univ, Prague, Czech Republic

[7] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

[8] Univ San Francisco, Quito, Ecuador

[9] Univ Grenoble 1, CNRS, IN2P3, Inst Nucl Sci, Grenoble, France

[10] Univ Mediterranee, CNRS, IN2P3, CPPM, Marseille, France

[11] Univ Paris 06, CNRS, IN2P3, LPNHE, Paris, France

[12] Univ Paris 07, CNRS, IN2P3, LPNHE, Paris, France

[13] CEA Saclay, Serv Phys Particules, DAPNIA, F-91190 Gif Sur Yvette, France

[14] Panjab Univ, Chandigarh 160014, India

[15] Univ Delhi, Delhi 110007, India

[16] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[17] Seoul Natl Univ, Seoul, South Korea

[18] CINVESTAV, Mexico City 14000, DF, Mexico

[19] Inst Nucl Phys, Krakow, Poland

[20] Inst Theoret & Expt Phys, Moscow 117259, Russia

[21] Moscow State Univ, Moscow, Russia

[22] Inst High Energy Phys, Protvino, Russia

[23] Univ Lancaster, Lancaster, England

[24] Univ Arizona, Tucson, AZ 85721 USA

[25] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[26] Univ Calif Davis, Davis, CA 95616 USA

[27] Calif State Univ Fresno, Fresno, CA 93740 USA

[28] Univ Calif Irvine, Irvine, CA 92697 USA

[29] Univ Calif Riverside, Riverside, CA 92521 USA

[30] Florida State Univ, Tallahassee, FL 32306 USA

[31] Univ Hawaii, Honolulu, HI 96822 USA

[32] Fermi Natl Accelerator Lab, Batavia, IL 60510 USA

[33] Univ Illinois, Chicago, IL 60607 USA

[34] No Illinois Univ, De Kalb, IL 60115 USA

[35] Northwestern Univ, Evanston, IL 60208 USA

[36] Indiana Univ, Bloomington, IN 47405 USA

[37] Univ Notre Dame, Notre Dame, IN 46556 USA

[38] Iowa State Univ, Ames, IA 50011 USA

[39] Univ Kansas, Lawrence, KS 66045 USA

[40] Kansas State Univ, Manhattan, KS 66506 USA

[41] Louisiana Tech Univ, Ruston, LA 71272 USA

[42] Univ Maryland, College Pk, MD 20742 USA

[43] Boston Univ, Boston, MA 02215 USA

[44] Northeastern Univ, Boston, MA 02115 USA

[45] Univ Michigan, Ann Arbor, MI 48109 USA

[46] Michigan State Univ, E Lansing, MI 48824 USA

[47] Univ Nebraska, Lincoln, NE 68588 USA

[48] Columbia Univ, New York, NY 10027 USA

[49] NYU, New York, NY 10003 USA

[50] Univ Rochester, Rochester, NY 14627 USA

来源：

PHYSICS LETTERS B | 2000年 / 487卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(00)00844-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of the b (b) over bar production cross section and angular correlations using the D phi detector at the Fermilab Tevatron p (p) over bar Collider operating at root s = 1.8 TeV. The b quark production cross section for /y(b)/ < 1.0 and P-T(b) > 6 GeV/c is extracted from the single muon and dimuon data samples. The results agree in shape with me next-to-leading order QCD calculation of heavy flavor production but are greater than the central values of these predictions. The angular correlations between b and (b) over bar quarks, measured from the azimuthal opening angle between their decay muons, also agree in shape with the next-to-leading order QCD prediction. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：264 / 272

页数：9

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