Dijet production by color-singlet exchange at the Fermilab Tevatron

被引：91

作者：

Abe, F ^{[1
]}

Akimoto, H

Akopian, A

Albrow, MG

Amendolia, SR

Amidei, D

Antos, J

Aota, S

Apollinari, G

Arisawa, T

Asakawa, T

Ashmanskas, W

Atac, M

Azfar, F

Azzi-Bacchetta, P

Bacchetta, N

Badgett, W

Bagdasarov, S

Bailey, MW

Bao, J

de Barbaro, P

Barbaro-Galtieri, A

Barnes, VE

Barnett, BA

Barone, M

Barzi, E

Bauer, G

Baumann, T

Bedeschi, F

Behrends, S

Belforte, S

Bellettini, G

Bellinger, J

Benjamin, D

Benlloch, J

Bensinger, J

Benton, D

Beretvas, A

Berge, JP

Berryhill, J

Bertolucci, S

Bettelli, S

Bevensee, B

Bhatti, A

Biery, K

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Blusk, S

机构：

[1] Natl Lab High Energy Phys, KEK, Tsukuba, Ibaraki 315, Japan

[2] Univ Bologna, Ist Nazl Fis Nucl, I-10127 Bologna, Italy

[3] Brandeis Univ, Waltham, MA 02254 USA

[4] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[5] Univ Chicago, Chicago, IL 60637 USA

[6] Duke Univ, Durham, NC 27708 USA

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

[8] Univ Florida, Gainesville, FL 32611 USA

[9] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[10] Univ Geneva, CH-1211 Geneva 4, Switzerland

[11] Harvard Univ, Cambridge, MA 02138 USA

[12] Hiroshima Univ, Higashihiroshima 724, Japan

[13] Univ Illinois, Urbana, IL 61801 USA

[14] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada

[15] Univ Toronto, Toronto, ON M5S 1A7, Canada

[16] Johns Hopkins Univ, Baltimore, MD 21218 USA

[17] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

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

[19] MIT, Cambridge, MA 02139 USA

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

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

[22] Univ New Mexico, Albuquerque, NM 87131 USA

[23] Ohio State Univ, Columbus, OH 43210 USA

[24] Osaka City Univ, Osaka 5858, Japan

[25] Univ Padua, Ist Nazl Fis Nucl, I-36132 Padua, Italy

[26] Univ Penn, Philadelphia, PA 19104 USA

[27] Univ Pisa, Ist Nazl Fis Nucl, I-56100 Pisa, Italy

[28] Scuola Normale Super Pisa, I-56100 Pisa, Italy

[29] Univ Pittsburgh, Pittsburgh, PA 15260 USA

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

[31] Univ Rochester, Rochester, NY 14627 USA

[32] Rockefeller Univ, New York, NY 10021 USA

[33] Rutgers State Univ, Piscataway, NJ 08855 USA

[34] Acad Sinica, Taipei 11530, Taiwan

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

[36] Texas Tech Univ, Lubbock, TX 79409 USA

[37] Univ Tsukuba, Tsukuba, Ibaraki 315, Japan

[38] Tufts Univ, Medford, MA 02155 USA

[39] Waseda Univ, Tokyo 169, Japan

[40] Univ Wisconsin, Madison, WI 53706 USA

[41] Yale Univ, New Haven, CT 06520 USA

[42] Argonne Natl Lab, Argonne, IL 60439 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.80.1156

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a new measurement of dijet production by color-singlet exchange in p (p) over bar collisions at root s = 1.8 TeV at the Fermilab Tevatron. In a sample of events with two jets of transverse energy E-T(jet) > 20 GeV, pseudorapidity in the range 1.8 < \eta(jet)\ < 3.5, and eta(1) eta(2) < 0, we find that a fraction R = [1.13 +/- 0.12(stat) +/- 0.11(syst)]% has a pseudorapidity gap within \eta\ < 1 between the jets that can be attributed to color-singlet exchnage. The fraction R shows no significant dependence on E-T(jet) or on the pseudorapidity separation between the jets. [S0031-9007(97)05184-3].

引用

页码：1156 / 1161

页数：6

共 14 条

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