LIGHT GLUINOS AND PRECISION TESTS AT THE CERN E(+)E(-) COLLIDER LEP

被引：10

作者：

BHATTACHARYYA, G

RAYCHAUDHURI, A

机构：

[1] Department of Pure Physics, University of Calcutta, Calcutta 700 009

来源：

PHYSICAL REVIEW D | 1994年 / 49卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.49.R1156

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A slight mismatch between the low and high energy alpha(s) measurements has fueled speculation in recent times on the existence of light gluinos-a scenario not yet ruled out by direct experimental searches. We study the impact of light virtual gluinos (similar to 3 GeV) on some electroweak observables measured at the CERN e(+) e(-) collider LEP 1 with unprecedented precision. We conclude that squark masses in the range 50-60 GeV are disfavored by the present data with the above choice of gluino mass.

引用

页码：R1156 / R1159

页数：4

共 15 条

[1] SEARCH FOR SQUARKS AND GLUINOS FROM (P)OVER-BAR-P COLLISIONS AT ROOT-S = 1.8 TEV [J].

ABE, F ;

AMIDEI, D ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ATAC, M ;

AUCHINCLOSS, P ;

AZZI, P ;

BADEN, AR ;

BACCHETTA, N ;

BADGETT, W ;

BAILEY, MW ;

BAMBERGER, A ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BAUER, G ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENLLOCH, J ;

BENSINGER, J ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BIERY, K ;

BHADRA, S ;

BINKLEY, M ;

BISELLO, D ;

BLAIR, R ;

BLOCKER, C ;

BODEK, A ;

BOLOGNESI, V ;

BOOTH, AW ;

BOSWELL, C ;

BRANDENBURG, G ;

BROWN, D ;

BUCKLEYGEER, E ;

BUDD, HS ;

BUSETTO, G ;

BYONWAGNER, A ;

BYRUM, KL ;

CAMPAGNARI, C ;

CAMPBELL, M ;

CANER, A ;

CAREY, R .

PHYSICAL REVIEW LETTERS, 1992, 69 (24) :3439-3443

[2] A SEARCH FOR WEAKLY INTERACTING NEUTRAL PARTICLES IN MISSING ENERGY EVENTS IN 450 GEV/C PN COLLISIONS [J].

AKESSON, T .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1991, 52 (02) :219-225

[3] EVENTS WITH LARGE MISSING TRANSVERSE ENERGY AT THE CERN COLLIDER .3. MASS LIMITS ON SUPERSYMMETRIC PARTICLES [J].

ALBAJAR, C ;

ALBROW, MG ;

ALLKOFER, OC ;

ASTBURY, A ;

AUBERT, B ;

AXON, T ;

BACCI, C ;

BACON, T ;

BAINS, N ;

BATLEY, JR ;

BAUER, G ;

BEINGESSNER, S ;

BELLINGER, J ;

BETTINI, A ;

BEZAGUET, A ;

BONINO, R ;

BOS, K ;

BUCKLEY, E ;

BUSETTO, G ;

CATZ, P ;

CENNINI, P ;

CENTRO, S ;

CERADINI, F ;

CHARLTON, DG ;

CIAPETTI, G ;

CITTOLIN, S ;

CLARKE, D ;

CLINE, D ;

COCHET, C ;

COLAS, J ;

COLAS, P ;

CORDEN, M ;

COUGHLAN, JA ;

COX, G ;

DAU, D ;

DEBEER, M ;

DEBRION, JP ;

DEGIORGI, M ;

DELLANEGRA, M ;

DEMOULIN, M ;

DENBY, B ;

DENEGRI, D ;

DICIACCIO, A ;

HEDO, FJD ;

DOBRZYNSKI, L ;

DORENBOSCH, J ;

DOWELL, JD ;

DUCHOVNI, E ;

EDGECOCK, R ;

EGGERT, K .

PHYSICS LETTERS B, 1987, 198 (02) :261-270

[4]

ALTARELLI G, 1993, 32 INT U WOCH KERN T

[5]

ALTARELLI G, 1993, JUL EUR PHYS SOC C M

[6] GLUINO-INDUCED EFFECTS AND PRECISION-MEASUREMENTS AT THE CERN E+E- COLLIDER LEP [J].

BHATTACHARYYA, G ;

RAYCHAUDHURI, A .

PHYSICAL REVIEW D, 1993, 47 (05) :2014-2019

[7] RADIATIVE-CORRECTIONS TO B(Z-]BBBAR) IN THE MINIMAL SUPERSYMMETRIC STANDARD MODEL [J].

BOULWARE, M ;

FINNELL, D .

PHYSICAL REVIEW D, 1991, 44 (07) :2054-2063

[8] SQUARKS BELOW THE Z [J].

CLAVELLI, L ;

COULTER, PW ;

FENYI, B ;

HESTER, C ;

POVINEC, P ;

YUAN, K .

PHYSICS LETTERS B, 1992, 291 (04) :426-430

[9] BEST FIT TO THE GLUINO MASS FROM QUARKONIA DECAYS [J].

CLAVELLI, L ;

COULTER, PW ;

YUAN, K .

PHYSICAL REVIEW D, 1993, 47 (05) :1973-1980

[10] LIMITS ON THE PRODUCTION OF NEUTRINO-LIKE PARTICLES IN PROTON-NUCLEUS INTERACTIONS FROM CALORIMETRY MEASUREMENTS [J].

DISHAW, JP ;

DIAMANTBERGER, AM ;

FAESSLER, M ;

LIU, JK ;

MERRITT, FS ;

WOJCICKI, SG ;

BARISH, BC ;

BARTLETT, JF ;

BODEK, A ;

BROWN, KW ;

SHAEVITZ, MH ;

SISKIND, EJ .

PHYSICS LETTERS B, 1979, 85 (01) :142-146

← 1 2 →