SEARCH FOR LIGHT GLUINOS VIA THE SPONTANEOUS APPEARANCE OF PI(-) PAIRS WITH AN 800 GEV()PI()C PROTON-BEAM AT FERMILAB/

Authors
ADAMS J ALAVIHARATI A ALBUQUERQUE IF ALEXOPOULOS T ARENTON M ARISAKA K AVERITTE S BARKER AR BELLANTONI L BELLAVANCE A BELZ J BENDAVID R 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 GRAHAM G GRAHAM J HAGAN K HALKIADAKIS E HANAGAKI K HIDAKA S JEJER V JENNINGS J JENSEN DA JOHNSON P KESSLER R KOBRAK HGE LADUE J LATH A LEDOVSKOY A MCMANUS AP MIKELSONS P MONNIER E NAKAYA T NAUENBERG U NELSON KS NGUYEN H ODELL V PANG M PORDES R PRASAD V QIAO C QUINN B RAMBERG E RAY RE RONZHIN A ROODMAN A SADAMOTO M SCHNETZER S SENYO K SHANAHAN P SHAWHAN P SLATER W SOLOMEY N SOMALWAR SV STONE RL SWALLOW EC SWANSON RA TESAREK RJ THOMSON GB TSCHIRHART R WAH YW WHITE HB WHITMORE J WINSTEIN B WINSTON R WU JY YAMANAKA T ZIMMERMAN ED
Citation
J. Adams et al., SEARCH FOR LIGHT GLUINOS VIA THE SPONTANEOUS APPEARANCE OF PI(-) PAIRS WITH AN 800 GEV()PI()C PROTON-BEAM AT FERMILAB/, Physical review letters, 79(21), 1997, pp. 4083-4087
Citations number
17
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
21
Year of publication
1997
Pages
4083 - 4087
Database
ISI
SICI code
0031-9007(1997)79:21<4083:SFLGVT>2.0.ZU;2-1
Abstract
We searched for the appearance of pi(+)pi(-) pairs with invariant mass greater than or equal to 648 MeV/c(2) in a neutral beam. Such an obse rvation could signify the decay of a long-lived light neutral particle . We find no evidence for this decay. Our null result severely constra ins the existence of an R-0 hadron, which is the lightest bound state of a gluon and a light gluino (g (g) over tilde), and thereby also the existence of a light gluino. Depending on the photino mass, we exclud e the R-0 in the mass and lifetime ranges of 1.2-4.6 GeV/c(2) and 2 X 10(-10)-7 X 10(-4) s, respectively.