Probing hard color-singlet exchange in p(p)over-bar collisions at √s = 630 GeV and 1800 GeV

被引：73

作者：

Abbott, B ^{[1
]}

Abolins, M

Abramov, V

Acharya, BS

Adam, I

Adams, DL

Adams, M

Ahn, S

Aihara, H

Alves, GA

Amos, N

Anderson, EW

Astur, R

Baarmand, MM

Babintsev, VV

Babukhadia, L

Baden, A

Baldin, B

Banerjee, S

Bantly, J

Barberis, E

Babukhadia, L

Baden, A

Baldin, B

Banerjee, S

Bantly, J

Barberis, E

Baringer, P

Bartlett, JF

Belyaev, A

Beri, SB

Bertram, I

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Biswas, N

Blazey, G

Blessing, S

Bloom, P

Boehnlein, A

Bojko, NI

Borcherding, F

Boswell, C

Brandt, A

Breedon, R

Brock, R

Bross, A

Buchholz, D

Burtovoi, VS

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] Univ Los Andes, Bogota, Colombia

[5] CEA, DAPNIA, Serv Phys Particules, Saclay, France

[6] Panjab Univ, Chandigarh 160014, India

[7] Univ Delhi, Delhi 110007, India

[8] Tata Inst Fundamental Res, Mumbai, India

[9] Kyungsung Univ, Pusan 608736, South Korea

[10] Seoul Natl Univ, Seoul, South Korea

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

[12] Inst Nucl Phys, Krakow, Poland

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

[14] Moscow State Univ, Moscow, Russia

[15] Inst High Energy Phys, Protvino, Russia

[16] Univ Arizona, Tucson, AZ 85721 USA

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

[18] Univ Calif Davis, Livermore, CA 95616 USA

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

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

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

[22] Univ Hawaii, Honolulu, HI 96822 USA

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

[24] Univ Illinois, Chicago, IL 60607 USA

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

[26] Northwestern Univ, Evanston, IL 60208 USA

[27] Indiana Univ, Bloomington, IN 47405 USA

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

[29] Purdue Univ, W Lafayette, IN 47907 USA

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

[31] Univ Kansas, Lawrence, KS 66045 USA

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

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

[34] Boston Univ, Boston, MA 02215 USA

[35] Northeastern Univ, Boston, MA 02115 USA

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

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

[38] Univ Nebraska, Lincoln, NE 68588 USA

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

[40] NYU, New York, NY 10003 USA

[41] Univ Rochester, Rochester, NY 14627 USA

[42] SUNY Stony Brook, Stony Brook, NY 11794 USA

[43] Brookhaven Natl Lab, Upton, NY 11973 USA

[44] Univ Oklahoma, Norman, OK 73019 USA

[45] Brown Univ, Providence, RI 02912 USA

[46] Univ Texas, Arlington, TX 76019 USA

[47] Texas A&M Univ, College Stn, TX 77843 USA

[48] Rice Univ, Houston, TX 77005 USA

来源：

PHYSICS LETTERS B | 1998年 / 440卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(98)01238-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results on dijet production via hard color-singlet exchange in proton-antiproton collisions at root s = 630 GeV and 1800 GeV using the D empty set detector. The fraction of dijet events produced via color-singlet exchange is measured as a function of jet transverse energy, separation in pseudorapidity between the two highest transverse energy jets, and proton-antiproton center-of-mass energy. The results are consistent with a color-singlet fraction that increases with an increasing fraction of quark-initiated processes and inconsistent with two-gluon models for the hard color-singlet. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：189 / 202

页数：14

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