Search for light gluinos via decays containing π+ π- or π0 from a neutral hadron beam at fermilab

被引：25

作者：

Alavi-Harati, A

Albuquerque, IF

Alexopoulos, T

Arenton, M

Arisaka, K

Averitte, S

Barker, AR

Bellantoni, L

Bellavance, A

Belz, J

Ben-David, R

Bergman, DR

Blucher, E

Bock, GJ

Bown, C

Bricker, JD

Bright, S

Cheu, E

Childress, S

Coleman, R

Corcoran, MD

Corti, G

Cox, B

Crisler, MB

Erwin, AR

Ford, R

Golossanov, A

Graham, G

Graham, J

Hagan, K

Halkiadakis, E

Hanagaki, K

Hidaka, S

Hsiung, YB

Jejer, V

Jennings, J

Jensen, DA

Kessler, R

Kobrak, HGE

LaDue, J

Lath, A ^{[1
]}

Ledovskoy, A

McBride, PL

McManus, AP

Mikelsons, P

Monnier, E

Nakaya, T

Nauenberg, U

Nelson, KS

Nguyen, H

机构：

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

[2] Univ Virginia, Charlottesville, VA 22901 USA

[3] Univ Wisconsin, Madison, WI 53706 USA

[4] Rice Univ, Houston, TX 77005 USA

[5] Osaka Univ, Toyonaka, Osaka 560, Japan

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

[7] Elmhurst Coll, Elmhurst, IL 60126 USA

[8] Univ Colorado, Boulder, CO 80309 USA

[9] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[10] Univ Calif San Diego, La Jolla, CA 92093 USA

[11] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[12] Univ Arizona, Tucson, AZ 85721 USA

来源：

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

关键词：

D O I：

10.1103/PhysRevLett.83.2128

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on two null searches, one for the spontaneous appearance of pi(+)pi(-) pails, another for a single pi(0), consistent with the decay of a long-lived neutral particle into hadrons and an unseen neutral particle. For the lowest level gluon-gluino bound state, known as the R-0, we exclude the decays R-0 --> pi(+) pi(-) <(gamma)over tilde> and R-0 --> pi(0)<(gamma)over tilde> for the masses of R-0 and <(gamma)over tilde> in the theoretically allowed range. In the most interesting R-0 mass range, less than or equal to 3 GeV/c(2), we exclude R-0 lifetimes from 3 x 10(-10) sec to as high as 10(-3) sec, assuming perturbative QCD production for the R-0.

引用

页码：2128 / 2132

页数：5

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