Hard single diffraction in (p)over-barp collisions at √s=630 and 1800 GeV

被引：31

作者：

Abazov, VM ^{[1
]}

Abbott, B

Abdesselam, A

Abolins, M

Abramov, V

Acharya, BS

Adams, DL

Adams, M

Ahmed, SN

Alexeev, GD

Alton, A

Alves, GA

Anderson, EW

Amoud, Y

Avila, C

Baarmand, MM

Babintsev, VV

Babukhadia, L

Bacon, TC

Baden, A

Baldin, B

Balm, PW

Banerjee, S

Barberis, E

Baringer, P

Barreto, J

Bartlett, JF

Bassler, U

Bauer, D

Bean, A

Beaudette, F

Begel, M

Belyaev, A

Beri, SB

Bernardi, G

Bertram, I

Besson, A

Beuselinck, R

Bezzubov, VA

Bhat, PC

Bhatnagar, V

Bhattacharjee, M

Blazey, G

Blekman, F

Blessing, S

Boehnlein, A

Bojko, NI

Bolton, TA

Borcherding, F

Bos, K

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

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

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

[4] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

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

[6] Univ Los Andes, Bogota, Colombia

[7] Charles Univ Prague, Ctr Particle Phys, Prague, Czech Republic

[8] Acad Sci Czech Republ, Inst Phys, Ctr Particle Phys, Prague, Czech Republic

[9] Univ San Francisco Quito, Quito, Ecuador

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

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

[12] Lab Accelerateur Lineaire, CNRS, IN2P3, F-91405 Orsay, France

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

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

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

[16] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[17] Panjab Univ, Chandigarh 160014, India

[18] Univ Delhi, Delhi 110007, India

[19] Tata Inst Fundamental Res, Mumbai, India

[20] Seoul Natl Univ, Seoul, South Korea

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

[22] FOM, Inst NIKHEF, NL-1098 SJ Amsterdam, Netherlands

[23] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[24] Univ Nijmegen, NIKHEF, Nijmegen, Netherlands

[25] Inst Nucl Phys, Krakow, Poland

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

[27] Moscow MV Lomonosov State Univ, Moscow, Russia

[28] Inst High Energy Phys, Protvino, Russia

[29] Univ Lancaster, Lancaster, England

[30] Univ London Imperial Coll Sci Technol & Med, London, England

[31] Univ Arizona, Tucson, AZ 85721 USA

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

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

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

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

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

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

[38] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[39] Univ Illinois, Chicago, IL 60607 USA

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

[41] Northwestern Univ, Evanston, IL 60208 USA

[42] Indiana Univ, Bloomington, IN 47405 USA

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

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

[45] Univ Kansas, Lawrence, KS 66045 USA

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

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

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

[49] Boston Univ, Boston, MA 02215 USA

[50] Northeastern Univ, Boston, MA 02115 USA

来源：

PHYSICS LETTERS B | 2002年 / 531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(02)01364-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the D empty set detector, we have studied events produced in (p) over barp collisions that contain large forward regions with very little energy deposition ("rapidity gaps") and concurrent jet production at center-of-mass energies of roots = 630 and 1800 GeV. The fraction of events with forward or central jets associated with rapidity gaps is compared to predictions for hard diffraction. We also extract the momentum loss for scattered protons in such processes. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：52 / 60

页数：9

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