Search for R-parity violating supersymmetry using like-sign dielectrons in p(p)over-bar collisions at √s=1.8 TeV

被引：40

作者：

Abe, F ^{[1
]}

Akimoto, H

Akopian, A

Albrow, MG

Amadon, A

Amendolia, SR

Amidei, D

Antos, J

Aota, S

Apollinari, G

Arisawa, T

Asakawa, T

Ashmanskas, W

Atac, M

Azzi-Bacchetta, P

Bacchetta, N

Bagdasarov, S

Bailey, MW

de Barbaro, P

Barbaro-Galtieri, A

Barnes, VE

Barnett, BA

Barone, M

Bauer, G

Baumann, T

Bedeschi, F

Behrends, S

Belforte, S

Bellettini, G

Bellinger, J

Benjamin, D

Bensinger, J

Beretvas, A

Berge, JP

Berryhill, J

Bertolucci, S

Bettelli, S

Bevensee, B

Bhatti, A

Biery, K

Bigongiari, C

Binkley, M

Bisello, D

Blair, RE

Blocker, C

Bloom, K

Blusk, S

Bodek, A

Bokhari, W

Bolla, G

机构：

[1] KEK, Natl Lab High Energy Phys, Tsukuba, Ibaraki 305, Japan

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

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

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

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

[6] Univ Illinois, Urbana, IL 61801 USA

[7] Hiroshima Univ, Higashihiroshima 724, Japan

[8] Harvard Univ, Cambridge, MA 02138 USA

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

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

[11] Univ Florida, Gainesville, FL 32611 USA

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

[13] Duke Univ, Durham, NC 27708 USA

[14] Univ Chicago, Chicago, IL 60637 USA

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

[16] Brandeis Univ, Waltham, MA 02254 USA

[17] Univ Bologna, Ist Nazl Fis Nucl, I-40127 Bologna, Italy

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

[19] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[20] MIT, Cambridge, MA 02139 USA

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

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

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

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

[25] Osaka City Univ, Osaka 588, Japan

[26] Univ Padua, Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy

[27] Univ Penn, Philadelphia, PA 19104 USA

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

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

[30] Univ Pittsburgh, Pittsburgh, PA 15260 USA

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

[32] Univ Rochester, Rochester, NY 14627 USA

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

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

[35] Acad Sinica, Taipei 11530, Taiwan

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

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

[38] Univ Trieste, Ist Nazl Fis Nucl, Udine, Italy

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

[40] Tufts Univ, Medford, MA 02155 USA

[41] Waseda Univ, Tokyo 169, Japan

[42] Univ Wisconsin, Madison, WI 53706 USA

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

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.83.2133

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a search for like-sign dielectron plus multijet events using 107 pb(-1) of data in p (p) over bar collisions at root s = 1.8 TeV collected in 1992-1995 by the CDF experiment. Finding no events that pass our selection, we set sigma x BR limits on two supersymmetric processes that can produce this experimental signature: gluino-gluino or squark-antisquark production with R-parity violating decays of the charm squark or lightest neutralino via a nonzero lambda'(121) coupling. We compare our results to the next-to-leading order calculations for gluino and squark production cross sections and set lower limits on M((g) over tilde), M((t) over tilde(1)), and M((q) over tilde).

引用

页码：2133 / 2138

页数：6

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